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  • 1.
    Abdulkareem, Rawa
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Gherghiceanu, Marian
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Evaluations of Product Data Template initiatives2022Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The AEC (Architecture, Engineering, and Construction) industry has been undergoing a significant digitaliza-tion process in the last years. This transformation implies new challenges and adaptation concerning the ex-change of data between different software applications. Therefore, in response to this problem the benefits of IFC as a solution for the exchange of data have been investigated. However, the current versions of IFC cannot achieve semantic clarity in mapping entities and relationships. Therefore, there have been several attempts to develop solutions and optimizing methods to improve the exchange of information of product data. This paper aims to identify and investigate the challenges of using product data templates (PDT) for exchange of infor-mation and different PDT has been evaluated and compared. The necessary data was collected through literature review and document analysis. Five challenges and five initiatives were identified during the literature review. The five initiatives are Semantic web and linked data, CoClass, Buildingsmart, COBie and Cobuilder. The result showed how these initiatives could solve the identified challenges. 

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  • 2.
    Abi-Khalil, Pierre
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Abdulahad, Zuhair
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Stadsutveckling i mellanstora städer: En studie om förtätning i centrala Norrköping ur ett socialt och ekologiskt perspektiv2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Planners in Norrköping municipality today facing a challenge to meet Norrköping'sneeds in the housing market, while at the same time achieving demand for public places and areas such as parks, squares and nature areas. When existing areas within the city's borders are built, so-called densification takes place in the city, whichcan have both positive and negative consequences. The aim of this study is to investigatehow the densification has affected Norrköping's inner city from a social and ecologicalperspective with a focus on free space, and present proposals for measures forbetter management of the densification in central Norrköping.

    This study has mainly been carried out using a qualitative research method.A qualitative study is based on soft data such as interviews, document analysis and literature studies. The interviews have been conducted with respondents from Norrköpings municipality and the document analysis consists of steering documents obtained from Norrköpings municipality and Pontarius AB. Some data is obtained from documents and studies where results are presented in the form of tables, diagrams, figures and GIS analysis, which means that quantitative methods are also applied.

    To perform a safer densification, it is important that the municipality establishes safe guidelines and steering documents to relate to. These control documents should be used as a framework for efficient exploitation and ensure that the city's freeareas are developed from a sustainable perspective and that a good quality is includedin the development.

    It is advantageous that the development of the densification takes placeaccording to guidelines and documentation prepared by the municipality. To ensure maximum efficiency in exploitation, these guidelines should be followed at an early stage. It is also important that there is a balance of free space size and their quality. Too small a surface leads to a higher load and larger surfaces can be perceived as superfluousand a feeling of unsecure. It is recommended to study how the densification developsin connection with the infrastructure and how it will affect free and green areas in the long run.

    This study is limited to only the inner city of Norrköping. The study also delimits economic and political factors that can influence the planning of the densification and the development of the city’s infrastructure and public transport.

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  • 3. Abrahamsson, Sam
    et al.
    Rosén, Eric
    Entreprenörer och konsulters hantering av byggmaterialens prisökning och tillgängligheten på byggmaterial i Sverige under Covid-19.2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 4.
    Ahlander, Alfred
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Ekroth, Pontus
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Kommunikationsmodell för APD-plan vid användning av materialrutor och gångstråk2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: On-site construction is a complicated process. A temporary factory, with new zones for materials and workplace area must be established for each new project, which complicates the process further. Material management stands for a big saving opportunity in building projects and 40 % of the time lost on a construction site can be attributed to material management.  To overcome this waste connected to material management a well-processed logistics planning, god communication as well as experience feedback from previous projects is required. The aim for this thesis is therefore to identify improvement measure regarding the use of material-dedicated buffer zones and walking paths, and as well as create a model of communication that supports experience feedback.

    Method The thesis is a case study on two projects within the organization of NCC.  A qualitative data collection with literature review, interviews, document analysis and observation has been conducted. Semi-structured interviews have been conducted and includes seven respondents with different position within the construction industry.

    Findings: The thesis has produced factors that should be taken into consideration when material zones and walking paths are planned. The result shows that resources and structured processes are required if experience feedback should work during the construction project. To succeed with the use of material-dedicated buffer zones and walking paths, good communication of the construction site plan is needed. Furthermore, the thesis has resulted in a model of communication that supports experience feedback.  

    Implications: It’s during the purchase and delivery planning that the conditions for the material-dedicated buffer zones and walking paths are set, therefore the construction site planning should be involved more in this phase. A prerequisite for using dedicated material zones and walking paths are resources which supports the construction management with planning and performance. By using logistic resources within the organization facilitates planning and management of material at the construction site, enables that collected experience can be conveyed between projects. In the production there should be a responsible receiver of material deliveries, who is extra briefed in the constructions site plan and the material-dedicated buffer zones through continuous communication with the construction management and logistic resource.

    Limitations: Since the thesis only includes two building projects, there is a limitation of the factors and arguments that are treated. Although the result is based on two building projects the fundamental processes and course of events are similar and can therefore be applied on other building projects. 

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  • 5.
    Ahlgren, Ahlgren
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering. Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Ekblad, Alexander
    Jönköping University, School of Engineering, JTH, Civil Engineering. Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Förvaltande byggherrars inställning till BIM2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 6.
    Ahlstrand, Sanna
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Bender, Johanna
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Nordström, Linn
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    A more efficient way of building in a developing country, influenced by industrialized building: A case study in Leticia, Colombia2015Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose:The purpose of this study is to approach a solution to reduce housing shortage, by using inspiration from an industrialized building concept, which can lead to the opportunity for underprivileged people to get a livable housing. The aim is to study how knowledge from industrialized building could be used for a more efficient way of building in developing countries similar to Colombia.

     

    Method:Utilizing literature studies for achieving abutment to published research also giving the authors an observant mind. With this knowledge, participatory observations were made as action research to explore the prevailing procedure when establishing a house. Operating analyzes, interviews were held in Leticia for understanding observed decisions. To be able to critically analyze the results from the interviews and observations, collected data were compared with knowledge based on the authors’ reference frames.

     

    Findings:Keystones identified as the overall concept are applicable on establishments in the western world, since the concept is designed after similar conditions. Capital is required designing a building system as well as establishing a factory for prefabrication of elements, conditions limited in developing countries. Climate conditions and prevailing corruption prevents implementation of the concept. Identified weaknesses during the observations, noted repetition of unnecessary and non-value adding activities. One conclusion is not to implement the entire industrial building system, only practice the mindset. Initially keystones are implemented such as planning, exchange of information and reflection of performed projects, in order to improve upcoming projects. These keystones require no direct capital, merely a mindset that should be implemented.

     

    Implications:The outcome of this study is to enlighten the subject, since obvious weaknesses were noticed, with capacity for development. Further research is realistic because, in a long term it will help solving the housing situation. For example, using this result as underlay for education like creating more efficient building, enlightening planning for reducing unnecessary non value-adding activities. As a conclusion of the study, identified weaknesses during the establishment affects the efficiency, creating unnecessary costs. A developing country should focus upon emphasizing reduction of costs, since their economic status is already declining.

     

    Limitations: The observations during the case study have been concentrating on one small-scaled project in Leticia, Colombia. No further observations have been made but complements such as literature studies and interviews. Due to lack of time and language barrier, the amount of collected empirical data was too limited to provide durable conclusions for question formulations. Since only observations were performed on one establishment, a general result cannot be submitted.

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  • 7.
    Ahrenbeck, Linnea
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Holmström, Josefin
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Varför vill inte fler vara skyddsombud på byggarbetsplatser?2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: A stated problem in the construction industry is to recruit and keep safety officers. The lack of willing and engaged safety officers could result in lower safety at construction sites. The purpose of this report is to examine how the safety officers are currently experiencing their work environment and examine what can be changed to improve the situation. 

    The aim of this thesis is to find out what can be improved for more people to want to be a safety officer. This is examined by the main question: Why do not more people want to be a safety officer? The main question is answered by two sub-questions:

    • Which difficulties exists in the role as a safety officer? 
    • What changes needs to be done to improve the situation?

    Method: To reach the aim of the report a case study was performed. The case is Skanska Hus Väst and is limited to the profession safety officers. The method of investigation is interviews and questionnaires, which are qualitatively conducted. The interviews are conducted with the chief safety officers. The chief safety officers can see the broad picture of the situation since they continuously keep contact with all the construction sites in their district. The questionnaires are sent to all the local safety officers in all the districts in the entire region. 

    Findings: One reason for the lack of engaged safety officers is that they do not receive the necessary respect and response from their coworkers. It makes them feel alone. There is no acceptance for safety work and the time that is needed, which give the safety officers a bad conscience when they are forced to leave their work partner. To improve the situation the safety officer’s must receive more respect from their coworkers. Knowledge and acceptance concerning safety must be improved among all workers on the construction site. The safety officers need to feel that they can, and are allowed to, influence the project. 

    Implications: To solve the problem the current safety officer’s situation must be improved. If the existing safety officers are pleased they will give a positive picture of the role to their coworkers, the potential new safety officers. The safety officers’ situation can be improved by the points that follows:

    • The safety officers must receive more respect from others in the construction site. 
    • The safety officers should advantageously be placed separate from the time plan of the project.
    • The safety officers should be involved in an earlier stage of the project. 

    Limitations: The report has been limited to only examining the role of the safety officer and their own perspective. The views of safety officers from the perspective of other roles at the construction site has been omitted from the thesis. The report does not investigate how to perform the changes.

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  • 8.
    Akdogan, Sibel
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Fherm, Marcus
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Indigenisera begreppet hållbarhet hos byggföretagen2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Today's society is constantly moving towards a more conscious and committed attitude about working increasingly sustainable. To ensure that the construction industry with both major environmental and societal impact is involved, there are standardized legal requirements and environmental certifications that need to be met by the construction companies. The purpose of the study is therefore to investigate factors for how medium-sized construction companies can best implement sustainability work. The aim of this qualitative study is to focus on ecological and economic sustainability as well as how construction companies can implement increased sustainability work in their daily work. The study was conducted at a medium-sized construction company in the Jönköping area.

    Method: The methods used in this study are proven methods such as literature study, interview study and document observations for data collection. The literature study is used as a bedrock for the interview study and document observation since the early literature study is used as a preliminary study in the subject. Interviews and document analysis are applied to provide information where there is lack of knowledge.

    Results: After the methods have been applied, it is evident that the sustainability work is only applied according to legal requirements when no higher demands are made by the client or the company. The construction company have abstract goals that are difficult to interpret by the recipient, the employee. It is also shown that the knowledge among employees is low and the perceived amount of training in sustainability in the company is low. The case company has no designated "sustainability officer", questions and suggestions can be emailed to an email address, but there is no clear procedure for how these suggestions should be dealt with.

    Consequences: The sustainability work has been passive; the present state is based on the absence of sustainability requirements from the permanent organization. The need of more clear goals and concrete descriptions of how to meet the goals are also needed. There are also no requirements from the permanent project organization. There are rarely requirements from the client, which means that the sustainability work is often only applied to the extent of time and with the site manager's own set requirements and goals. The knowledge about sustainability is thin among the employees concerned, which has meant that own decisions regarding sustainable choices could not be made and possibly affected the commitment to the construction company. Employees felt that it needed fewer choices, clear routines and requirements regarding sustainability work.

    Limitations: The study focuses on ecological and economic sustainability; social sustainability has been excluded as it affects people's conditions in society. In this study, ecological sustainability will not be specified, the study will research commitment and important parameters to successfully sustainability work. The exact direction that the company should take, or has taken, will not be determined in this study. 

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    Indigenisera begreppet hållbarhet hos byggföretagen
  • 9.
    Albertsson, Nils
    et al.
    Jönköping University, School of Engineering.
    Gustavsson, Isak
    Jönköping University, School of Engineering.
    Påföljder av inbyggd fukt i konstruktionselement av korslimmat trä2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In spring 2023, two engineering students from Jönköping University collaborated with GBJ Bygg Jönköping to investigate the impact of moisture on cross-laminated timber (CLT) and its drying process. The study aimed to identify potential issues, damages, and propose mitigation methods. Through measurements and investigations, this study generated in-depth knowledge of moisture effects on CLT, ensuring proper material handling to avoid long-term negative consequences.The methodology involved quantitative investigations to obtain credible results. Experiments simulated the application of wet macadam on a CLT floor slab in a natural environment to measure time to reach an acceptable moisture content. Collaboration with GBJ Bygg provided access to information, materials, and simulation facilities. Two tests were conducted: immediate construction after placing washed macadam and a 9-day drying period before reconstruction. Results showed that direct macadam application led to high timber moisture content, while drying according to industry recommendations resulted in low moisture content without negative consequences. The drying process varied depending on reconstruction timing, and methods like extending macadam drying time were proposed to reduce damages and shorten the drying period.The discussion of results demonstrated data relevance with limited room for misinterpretation. However, the study's time frame limited complete results, and the lack of prior research on timber drying affected connections to previous studies. The clearest answer came from the 9-day drying test, showing a decrease in moisture content. Some measured values deviated, possibly due to measurement errors. Facility climate and construction execution posed potential error sources. Despite limitations, the experiment effectively addressed the study's purpose and research questions.

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    Påföljder av inbyggd fukt i konstruktionselement av korslimmat trä
  • 10.
    Albunayah, Razan
    et al.
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    C Lindén, Sofia
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    PERCEIVED BRIGHTNESS OF COLORED LIGHT: A study about the perceived brightness of near-monochromatic light in comparison to neutral white light2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Recently, there has been a notable rise in the use of colored lighting for both indoor andoutdoor spaces. This trend necessitates a clear understanding of the principles behindselecting lighting levels that are both ergonomic and energy efficient. The objective ofthis study was to establish guidelines for planning colored light. An experiment wasconducted where the perceived brightness of three different near-monochromatic lightswere compared to white light. The stimuli covered a narrow visual field. 33 personsaged 18-40Y participated. Through the measurement of the participants' perception ofthe amount of colored light required -to achieve the same level of brightness as withwhite light- the study was able to determine a percentage-based relationship betweencolored and white light. The result showed that there were clear differences in theperceived brightness of the different colored lights, in line with earlier research withsimilar conditions. This implicates that the results may be used as a foundation whenplanning colored light.

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  • 11.
    Algan, Tezel
    et al.
    School of Art, Design and Architecture, University of Huddersfield, Huddersfield, UK.
    Pedro, Febrero
    CEO, Bityond Inc., Avenida Duque d’Ávila, Lisboa, Portugal.
    Eleni, Papadonikolaki
    Bartlett School of Construction and Project Management, University College London, London, UK.
    Yitmen, Ibrahim
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Insights into Blockchain Implementation in Construction: Models for Supply Chain Management2021In: Journal of Management in Engineering, ISSN 0742-597X, E-ISSN 1943-5479, Vol. 37, no 4Article in journal (Refereed)
    Abstract [en]

    The interest in the implementation of distributed ledger technologies (DLTs) is on the rise in the construction sector. One specific type of DLT that has recently attracted much attention is blockchain. Blockchain has been mostly discussed conceptually for construction to date. This study presents some empirical discussions on supply chain management (SCM) applications of blockchain for construction by collecting feedback for three blockchain-based models: project bank accounts (PBAs) for payments, reverse auction–based tendering for bidding, and asset tokenization for project financing. The feedback was collected from three focus groups and a workshop. The working prototypes for the models were developed on Ethereum. The implementation of blockchain in payment arrangements was found to be simpler than in tendering and project tokenization workflows. However, the blockchain integration of those workflows may have large-scale impacts on the sector in the future. A broad set of general and model-specific benefits/opportunities and requirements/challenges was also identified for blockchain in construction. Some of these include streamlined, transparent transactions and rational trust building, and the need for challenging the sector culture, upscaling the legacy information technology (IT) systems, and compliance with the regulatory structures.

  • 12.
    Ali, Rebaz
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    One design is not adaptable to all: an exploration of technology developers’ assumptions in relation to the user organization2020Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    BIM is defined as promising development concerning the way buildings are designed and constructed. However, since it may be a bit misleading to emphasize the BIM implementation, the focus should rather be concerning the implementation of different BIM tools. Consequently, it is essential to further study the technology and its interaction with user organization. Objective: The purpose of this work is to investigate the interaction between the technology and user in order to identify the adaptation of technology and organization for technology development and changed routines in the user organization. Method(s): A case study has been adopted on an ongoing project in order to increase the understanding of the existing technology. Moreover, this is done through eleven semi structured interviews with respondents from one of the large sized contractors in Sweden as well as a technology developer company within the production phase. The data from the interviews was coded and thematically analyzed. Results: The result indicates that the developers' assumptions do not fulfill the user's needs and rather independent adaptation must be accomplished. Conclusions: From the conducted interviews in the case study, the conclusion follows that a need for improvement potential from the technology is required in order to further streamline the work process and achieve full potential. 

  • 13.
    Alizadehsalehi, Sepehr
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science. Civil Engineering Department, Eastern Mediterranean University, Turkey.
    Yitmen, Ibrahim
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science. Civil Engineering Department, Eastern Mediterranean University, Turkey.
    Celik, Tolga
    Civil Engineering Department, Eastern Mediterranean University, Turkey.
    Arditi, David A.
    Department of Civil and Architectural Engineering, Illinois Institute of Technology, United States.
    The effectiveness of an integrated BIM/UAV model in managing safety on construction sites2020In: International Journal of Occupational Safety and Ergonomics, ISSN 1080-3548, E-ISSN 2376-9130, Vol. 26, no 4, p. 829-844Article in journal (Refereed)
    Abstract [en]

    Introduction. A variety of approaches exist to achieve better construction safety performance, but only a few consider a combination of building information modeling (BIM) and unmanned aerial vehicles (UAVs).

    Method. This article presents a four-dimensional (4D) BIM/UAV-enabled safety management model based on IDEF0 language. In the first step, potential hazards are identified with the help of safety specialists’ experiences and BIM software used in the design of the structure. Then, a UAV monitors the location of the potential hazards. The third step involves the integration of the 4D BIM-based model and the information obtained from the UAV. Finally, the combined data are analyzed and interpreted, and site safety staff are notified about measures to be put in place to prevent accidents.

    Results. This model shows a strong relationship between the design and construction phases by using BIM in the design phase and UAVs in the construction phase. The proposed safety model was evaluated by construction safety specialists in a two-pronged approach.

    Conclusion. The number of fatal, non-fatal and property damage-causing accidents may be significantly lower when the proposed system was used.

    Practical application. This model allows safety specialists to identify hazards and develop suitable mitigation strategies. 

  • 14.
    Aljundi, Fares
    et al.
    Jönköping University, Jönköping International Business School.
    Draki, Mohamed Eyad
    Jönköping University, Jönköping International Business School.
    Management of Sustainability: Leadership Styles and Promotion of Sustaianbility in the Construction Industry2021Independent thesis Advanced level (degree of Master (One Year)), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Sustainability has recently received an increased level of attention across all sectors over the world, the construction industry is no exception. This industry is one of the most complex and dynamic sectors. Consequently, promotion of sustainability within the construction industry is a leadership challenge that requires a unique leadership style. Existing literature has been focusing on leadership and sustainability that have been investigated separately with little rigorous research regarding the linkage between these two concepts in the management research. It has been noticed that all these studies were within national and specific contexts. The promotion of sustainability varies from one country to another due to the fact that each country has its own climatic conditions, cultural patterns, and traditional settlements. The present study investigates how leadership styles of leaders in construction firms shape the promotion of sustainability in two different contexts. A multiple case study was applied, and data was collected through conducting interviews with twenty managers charged with the promotion of sustainability in Sweden and Saudi Arabia to fulfil the research purpose by adopting a qualitative research approach. The MLQ model was used to identify the participants’ leadership styles. Furthermore, the United Nations Global Compact framework was used to segment the cases in terms of the promotion of sustainability. The study concludes that two of the identified leadership styles do not work similarly in Sweden and Saudi Arabia. Transformational leadership styles shaped the promotion of sustainability at a high level in Sweden, but at a low level in Saudi Arabia. Additionally, transactional leadership shaped the promotion of sustainability at a high level in Saudi Arabia, but at a low level in Sweden. While the passive leadership style shaped the promotion of sustainability at a low level in both countries. Managers can use these findings to promote sustainability practices and shape their styles of leadership taking into account contexts that differ from one country to another. 

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    Master Thesis-Management of Sustainability
  • 15.
    Alklid, Erik
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Finnander, Jakob
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Arbetsmiljömodell för byggarbetsmiljösamordnare på små byggföretag2016Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
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    Arbetsmiljömodell för byggarbetsmiljösamordnare på små byggföretag
  • 16.
    Al-maliki, Zainab
    et al.
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    Baross, Wanessa
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    Post Occupancy Evaluation of Estero de San Miguel Pilot Project2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Introduction: This thesis focuses on the housing situation and sustainability in Manila, the capital of the Philippines. According to a report by the United Nations Human Settlements Programme, approximately 25% of Manila's population resides in substandard living conditions and informal settlements. The thesis is based on a case study conducted on the Estero De San Miguel pilot project, where a Post-Occupancy Evaluation (POE) study was carried out on the housing project. The findings revealed that relocating people from slums to the housing project and providing them with a home led to an improvement in the quality of life and sustainability in the project area. The aim of the study was to conduct a POE and assess the quality of life and identify areas for improvement in future low-budget projects.

    Method: The research methods are based on a combination of qualitative and quantitative methods. Interviews were conducted with architects and other key individuals involved in the project. Surveys were administered to residents, and personal observations were made regarding the quality of life. Plan analysis and area analysis were also conducted.

    Results: The case study resulted in answers obtained through surveys administered to the residents in the area and interviews with key personnel involved in the project, providing responses to the research questions.

    Analysis: The Estero De San Miguel Pilot Project (EDSM) has made a significant impact on improving the quality of life and sustainability within the project area. Previously, informal settlements were typically reconstructed outside the city center, resulting in limited access to employment, education, and social services. The residents lived in poverty within these informal settlements, with their needs neglected by both society and the government. Since relocating to the EDSM housing project, 72% of the residents have experienced notable improvements in their lives. This project has provided them with an opportunity to enhance their quality of life and foster a stronger, more supportive community.

    Discussion: The method, with its specific limitations, in this case study yields results that align with the study's purpose and thereby addresses the research question of the thesis. There is a strong correlation between the findings and the theoretical framework.

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  • 17.
    Almusaed, Amjad
    et al.
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    Almssad, Asaad
    Karlstad Univ, Dept Engn & Chem Sci, S-65188 Karlstad, Sweden..
    Alasadi, Asaad
    Univ Basra, Engn Coll, Dept Architectural Engn, Basrah 61001, Iraq..
    Yitmen, Ibrahim
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    Al-Samaraee, Sammera
    Basrah Univ Oil & Gas, Coll Oil & Gas Engn, Dept Chem & Petr Refining Engn, Basrah 61004, Iraq..
    Assessing the Role and Efficiency of Thermal Insulation by the "BIO-GREEN PANEL" in Enhancing Sustainability in a Built Environment2023In: Sustainability, E-ISSN 2071-1050, Vol. 15, no 13, article id 10418Article in journal (Refereed)
    Abstract [en]

    The pressing concern of climate change and the imperative to mitigate CO2 emissions have significantly influenced the selection of outdoor plant species. Consequently, evaluating CO2's environmental effects on plants has become integral to the decision-making process. Notably, reducing greenhouse gas (GHG) emissions from buildings is significant in tackling the consequences of climate change and addressing energy deficiencies. This article presents a novel approach by introducing plant panels as an integral component in future building designs, epitomizing the next generation of sustainable structures and offering a new and sustainable building solution. The integration of environmentally friendly building materials enhances buildings' indoor environments. Consequently, it becomes crucial to analyze manufacturing processes in order to reduce energy consumption, minimize waste generation, and incorporate green technologies. In this context, experimentation was conducted on six distinct plant species, revealing that the energy-saving potential of different plant types on buildings varies significantly. This finding contributes to the economy's improvement and fosters enhanced health-related and environmental responsibility. The proposed plant panels harmonize various building components and embody a strategic approach to promote health and well-being through bio-innovation. Furthermore, this innovative solution seeks to provide a sustainable alternative by addressing the challenges of unsustainable practices, outdated standards, limited implementation of new technologies, and excessive administrative barriers in the construction industry. The obtained outcomes will provide stakeholders within the building sector with pertinent data concerning performance and durability. Furthermore, these results will enable producers to acquire essential information, facilitating product improvement.

  • 18.
    Almusaed, Amjad
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Almssad, Asaad
    Head of Building Technology, Karlstad University, Karlstad, Sweden.
    Homod, Raad Z.
    Department of Oil and Gas Engineering, Basrah University for Oil and Gas, Garmat Ali Campus, Basrah, Iraq.
    Yitmen, Ibrahim
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Environmental profile on building material passports for hot climates2020In: Sustainability, E-ISSN 2071-1050, Vol. 12, no 9, article id 3720Article in journal (Refereed)
    Abstract [en]

    Vernacular building materials and models represent the construction methods and building materials used in a healthy manner. Local building materials such as gravel, sand, stone, and clay are used in their natural state or with minor processing and cleaning to mainly satisfy local household needs (production of concrete, mortar, ballast, silicate, and clay bricks and other products). In hot climates, the concept of natural building materials was used in a form that can currently be applied in different kinds of buildings. This concept depends on the proper consideration of the climate characteristics of the construction area. A material passport is a qualitative and quantitative documentation of the material composition of a building, displaying materials embedded in buildings as well as showing their recycling potential and environmental impact. This study will consider two usages of building materials. The first is the traditional use of building materials and their importance in the application of vernacular building strategies as an essential global bioclimatic method in sustainable architecture. The second is the affordable use of new building materials for their availability and utilization by a large part of society in a way to add more detail to research. The article aims to create an objective reading and analysis regarding specific building materials in order to generate a competent solution of materials that is suitable for building requirements in hot climates. This study evaluates the most suitable Building Material Passports needed in hot climates, where the environmental profile must be analyzed to confirm the use of natural materials. 

  • 19.
    Alsterlund, Karin
    et al.
    Jönköping University.
    Andler, Fanny
    Jönköping University.
    Hantering av oanvänt byggmaterial på byggarbetsplatser2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The construction industry generates over 100 million ton of waste every year. When it comes to sustainability there is focus on material type, energy use, indoor climate, transports and waste. There are different certification systems that can be used to classify the buildings. In those certification systems there are no requirements on unused building material. 13 percent of the waste contains unused material. Unused material means material and products that are ordered to the construction site but is not used in the construction. The goal with the project is to analyse how to reduce the amount of unused material that goes to waste on big construction companies in Sweden.

    Method: This thesis is done through a qualitative study with the methods of literature study, document analysis and interviews. The literature study showed the current research front. Document analysis and interviews provided information about the companies sustainable goals, ethical regulations and working methods.

    Findings: The thesis shows that unused material occurs because of difficulties to quantify material because of the tight time schedule and not wanting to risk getting downtime in the production. The material gets damaged when it is handled on the construction site. The material is disposed to follow the ethical requirements of the company but is not in line with the sustainability goals. All interview responders agreed on the need of change to achieve the goal. The company has a working method where the trucks drive the material to a terminal and then out to the construction when it is time for the material to be used. This method could be used to minimize the disposal. Better communication between the projects would help unused material to be taken care of in a different project. The problem is that since it is different owners of the material depending on the purchase of contract it is not always easy to handle the material between the projects. To sell the unused material has been discussed before in the company but because of the lack of space and resource consumption it is problematic. Material also get damaged from the weather, but the lack of space is the reason why a tent not is a good solution.

    Implications: In order to reduce the occurrence of unused material, BIM, Lean, prefabrication and terminal management can be used. The materials that become unused can be taken care of in a different project, better communication between the projects will reduce material disposal.

    Limitations: The thesis is only theoretically analysing how to reduce disposal of unused material. No measures of time or economical aspects has been analysed. The work does not consider material like waste, consumables or material that are useable after demolishes. The result is useful in larger companies since smaller companies do not have the same problematics.

    Keywords: Building Information Modeling, BIM, disposal,  durability, environment, environmental objectives,  ethical rules, Lean Construction, material handling,  material waste, terminal management, unused building materials, waste and energy loss reduction.

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  • 20.
    Alsén (fd Fransson), Emma
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Josefsson, Efraim
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    PRODUKTUTFORMNINGENS INVERKAN PÅ PRODUKTIONSPROCESSEN HOS EN BYGGLEVERANTÖR: Fallstudie av en fackverksleverantör2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 21.
    Alving, Paulina
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Relander, Ellen
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Avfallshantering: En jämförelse mellan byggarbetsplatser2021Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
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  • 22.
    Andersson, Felix
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Partnering bland små och medelstora entreprenader2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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    fulltext
  • 23.
    Andersson, Jonathan
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Karlsson, Alexander
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Effektivisera maskinhantering på små och medelstora byggföretag i Småland2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte: Studiens syfte är att undersöka hur maskinhantering ser ut på små ochmedelstora byggföretag i Småland samt vilka konsekvenserna som uppkommer vid enbristfällig maskinhantering. Vidare undersöka vilka åtgärder som kan göras med hjälpav digitala verktyg och Lean Construction Management för att skapa en välfungerande maskinhantering på arbetsplatsen.

    Metod: Studien är en kvalitativ undersökning där insamling av primärdata kommerske genom semistrukturerade intervjuer på tre olika byggföretag i Småland som ärverksamma inom samma geografiska område och utövar liknande byggprojekt. Detkommer att intervjuas fyra personer från respektive företag, två personer frånplatsledningen samt två yrkesarbetarna.Utöver detta kommer insamling av sekundärdata ifrån tidigare studier att göras.Litteraturinsamling ska ta upp åtgärder som kan göras för att minimera konsekvensermed hjälp av digitala verktyg samt Lean Construction Management. Även ta uppstudier som pekar på att en dålig maskinhantering ger konsekvenser. 

    Resultat: Alla intervjuade har haft liknande uppfattningar om maskinhanteringen,några tycker att maskinhantering har fungerat bra medan andra har haft småproblematt maskiner och verktyg försvinner. Sammanslaget letande efter maskiner harpendlat, det påvisas att varje arbetare letar mellan 5-30 minuter daglig för maskiner.Detta pendlar beroende på stress på arbetsplatsen, skede av byggnation, storlek påprojekten, kommunikation mellan parter och det personliga ansvaret att hålla ordningoch reda. 6 av 12 respondenterna anser att ett automatiskt system för inventering inteskulle vara värt investeringen då respondenterna är osäkra hur en implementeringskulle fungera då tilliten på att alla ska använda det inte finns. Resterande 6respondenter anser att ett automatiskt system skulle vara lämpligt på störrebyggnationer. Två av tre företag har försökt implementera ett system för inventeringmen de har inte fungerat då respondenterna anser att programmet inte är smidig nogvilket har resulterat i att alla har slutat nyttja det.

    Konsekvenser:Personliga ansvaret hos arbetstagarna är viktigt, påminn varandra hur viktigt det så attkostnader inte flyger iväg. Finns det ett system för inventering bör det användasistället för att kosta pengar. Viktigt att identifiera slöserier gällandemaskinhanteringen. Byt inte arbetsmoment innan färdigställande, byte avarbetsmoment är krångligt och skapar problem gällande maskinhanteringen.Digitala system har potential att återfå kontroll över en bristfällig maskinhantering.Viktigt att identifiera logistiken i ett tidigt skede. Vid större byggnationer kanimplementering av digitala verktyg vara lämplig.

    Begränsningar: Större maskiner som används på byggarbetsplatser kommer intebehandlas av rapporten utan huvudsyftet är handmaskiner. Rapporten behandlar inteprojekt under 2500 timmar, detta för att ge ske en tydlig skiljelinje mellan små ochstora projekt. Utöver detta kommer byggprojekt vilket inte har en upprättad etableringinte behandlas. Små och medelstora studeras enbart

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  • 24.
    Andersson, Mark
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Hengami, Sam
    Jönköping University, School of Health and Welfare. Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Guide för att förbättra praktik hos konsultföretag2022Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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    Guide to improve internships at consultancy firms
  • 25.
    Andersson, Simon
    et al.
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    Johansson, Isac
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    LOGISTIK OCH TRANSPORT INOM BYGGOMRÅDET I TÄTBEBYGGDA OMRÅDEN2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Introduction - The construction industry has its focus on six areas that manage whathappens in the construction area. These areas are related to the construction of newbuildings and the processes that affect buildings. The goal of the study is to find outhow the use of logistics on a smaller construction site affects transport, material, andinventory management. To later see its impact on production.

    Method - The study has been conducted as a real-time case study. The studied projectwas in production at the time of investigation. This meant that the company could nothide its shortcomings and the authors increased their chances of discoveringimprovements. In the case study, triangulation between interviews, observations andliterature study was used to answer the questions.

    Results – The company had a clear plan and planned the construction logistics dailybased on various deliveries and delays and they covered materials if needed. In theinterviews, the location manager mentions the importance of efficient planning andstorage locations, while the sustainability manager emphasizes the concept of "just intime" and the awareness of logistics problems. The project manager focused onavoiding the non-value-added activities and pointed out the importance of carefulplanning and structure to improve efficiency, profitability, and safety.

    Analyze – Through careful pre-planning and "just in time" deliveries, the companystrives for effective project plans and cost efficiency. By fixing security measures,securing permits in densely built-up areas, and introducing traffic control measures,they strive to improve safety, profitability, and efficiency.

    Discussion – The study consists of observations, interviews, and literature study. In thediscussion, weaknesses and strengths are discussed with observations and interviews.Discussion is linked back with the theoretical framework, the goal, the questions, andthe delimitations. 

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    Examensarbete_Logistik_2023
  • 26.
    Andrésen, Daniel
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Strand, Kristoffer
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Beställarens inställning till den utsläppsminskning av växthusgaser som förväntas ske i bygg- och anläggningssektorn till år 20302019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Purpose: Climate changes has got a lot more attention together with drastic actions required to reduce human impact on the climate. Many companies in the building and construction industry have signed up to work with emission reductions of greenhouse gases and reach a goal of 50 % reduction by 2030. But how this should be done and which actions that is needed to make this goal happen is not as clear.

    The goal of this report is to develop proposals on actions to help clients and construction companies in their environmental work.

    Method: The report has been carried out as a qualitative study where five interviews has been conducted, four of them with clients and one with a construction company. In addition, both a literature study and a document analysis has been applied to validate the result and conclusion.

    Findings: The report concludes that the client has an important role to play in pushing the environmental work forward, something they themselves experience. It also concludes that it requires more collaboration between the companies in the industry to achieve the goal by 2030. Therefore, procurement forms that make it possible need to be used. It requires new thinking from the purchasers in procurements where, for example soft parameters such as experience should be given greater value and different types of procurement are needed. But also, ecological and social aspects need to be highlighted more to achieve sustainable construction. 

    The report concludes that it is still the price that decides when projects are procured. It also states that neither the theory or the respondents think there is a long-term perspective in the construction and civil engineering sector. And that it is related to why the lowest price is chosen during procurement.

    Implications: For the environmental work to continue and increase is standardized tools to measure the climate footprint in production needed, to make precise analyses. At the same time is cooperation with the legal side needed to succeed in setting legally correct environmental requirements. In addition, the focus from economic aspects also needs to be shifted to a long-term perspective and the best for the project, through soft parameters and social and ecological aspects.

    Limitations: Only the goal to 2030 will be addressed, and only clients and construction companies within the building and construction industry will be investigated.  

    Keywords: Emission reduction, Climate impact, Client, Procurement, Long-term, Innovation, Sustainability. 

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  • 27.
    Aronsson, Linus
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Integrerat brounderhåll2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Trafikverket is responsible for the public traffic network in Sweden. The traffic

    network contains around 15 500 bridges that constantly are exposed of different

    kinds of degradation. The bridges must therefore be maintained at regular

    intervals both to keep bridges in good condition and to prevent the degradation

    accelerated.

    During the last years Trafikverket has developed a new procurement method of

    bridge maintenance. The method involves that all bridges maintenance of a region

    is being bundled to one contract that an entrepreneur handles for five years, a socalled

    bridge maintenance package. A bridge maintenance package exists of

    preventive maintenance, remedial maintenance and emergency maintenance.

    The purpose of this paper is to follow up the new form to procure bridge

    maintenance in package. The goal is to clarify the gains or losses made in

    efficiency since the introduction of bridge maintenance in package.

    Methods used in the creating of this thesis are literary studies, meetings and

    interviews along with analysis, calculations and comparisons.

    The result lays the foundation for the client, contractor and consultant working in

    the bridge maintenance package and further what has changed from the way they

    were working on bridge maintenance earlier.

    The largest efficiency gains are administrative. Because a bridge maintenance

    package is a turnkey contract the majority of responsibility is put on the

    contractor, instead of the client, which gives the client time for other tasks.

    Nowadays the bridge maintenance is in a separate contract which lasts for a longer

    time which gives the client a more qualified contractor for that kind of work

    which is reducing the number of fundamental questions and gives the client extra

    time. The contractor will get more operating freedom and at the same time more

    time to plan maintenance work. Through frequent communication between client

    and contractor decision-making paths becomes shorter which gives more

    efficiency throughout the entire process.

    The package in the region Skaraborg was one of the first bridge maintenance

    packages and it differs a lot from later maintenance packages. The biggest

    difference is in the contract documents. The package in Skaraborg was based on a

    fictional bridge while the more recent maintenance packages documents addresses

    the real action which the contractor will perform during the contracted period.

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    Integrerat brounderhåll
  • 28.
    Arveståhl, Beatrice
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Lehtinen, Susan
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    UTREDNING KRING TOLKNINGEN AV ”LITEN AVVIKELSE”2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: In Sweden, a municipal plan monopoly is used to regulate what, how and where you can or cannot build. How the plans, in the shape of comprehensive and detailed development plans, are formed is in turn regulated by the Planning and Building Act (PBL). Throughout history, Swedish building regulations have gone through many more or less extensive changes with the overall goal to improve our built environment and simplify or streamline the planning and building processes. From this comes the term small deviation, which in PBL is used to allow building permits that deviate from the detailed development plan, provided that the deviation is small. There is, however, no explanation in the law as to what this might mean in practice, and so there are large differences in terms of interpretation and application.

    The goal of this study is to analyse how the term small deviation according to PBL, chapter 9 § 31b is interpreted and applicated in building permit trials.

    Method: The methods used in this study are interviews (with building permit officers) and document analysis (of building permit decisions from quarter two, 2016, and court cases from the Land and Environment Court of Appeal).

    Findings: How deviations are interpreted does indeed vastly differ, and while the municipalities do work in a similar manner to determine whether a deviation could be considered small, there are significant differences. Only in the matter of built area on a property, the three studied municipalities all have different practices in what size of violation may be considered small, and the building permit officers in one of these municipalities still deviate from this. In eight out of 13 court cases, the Land and Environment Court of Appeal judged differently from the previous authorities. Only in one did all authorities agree.

    Implications: The findings implicate the following:

    • There are remarkable differences in how small deviation is assessed.

    • De biggest differences are between the local building permit officers and the Land and Environment Court of Appeal.

    • The factors that affect the assessment on a municipal level the most are experience, precedent cases and discussion with colleagues.

    Limitations: A wider study containing more information from several municipalities and an analysis of the material accessible to the municipalities for guidance to assess deviations would provide a clearer answer as to what affects the interpretation.

    Keywords: PBL, Planning and Building Act, building permits, law interpretation, interpretation, deviation, small deviation, deviation from detailed development plan, sensemaking, the Land and Environment Court of Appeal 

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  • 29.
    Axelsson, Alice
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Johansson, Elinor
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    UTREDNING AV UPPHANDLINGSDOKUMENT VID OFFENTLIG UPPHANDLING MED FOKUS PÅ ÄTA-ARBETEN2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Today two of the biggest problems within the construction industry in Sweden is the exceeding of budgets and that the projects do not finish in time. One of the reasons is the use of alterations, supplementary- and withdrawn work that occurs during the project. The purpose is therefore to study the variations that can be related to the documents that are used during public procurement as well as provide some suggestions on how the procurement documents can be improved for future projects. Hence trying to decrease the use of variations in projects. Method: The study consists of a multiple case study with three similar projects. The methods that are used are a literature study that provides the base of the intended study. A study of documents is also a crucial element to be able to draw the connections between the procurement documents and the alterations, supplementary- and withdrawn work. There will also be semi structured interviews that will strengthen the case study and increase the knowledge within the area. Findings: the study shows that 60 percent of the alterations, supplementary- and withdrawn work can be connected to the procurement documents. There are a few causes that leads to the use of alterations, supplementary- and withdrawn work in a project for example coordination between the different technical areas within the projects that can lead to contradictions in the documents. Too much material in the procurement documents can leads to conflicting information which leads to the use of alterations, supplementary- and withdrawn work. With greater accuracy and greater coordination between the different technical areas, drawings, and other documents. Coordination between the areas would also improve if it is implemented in the early stages of design. It is important to be clear in the technical description which work is expected from the project which would lead to fewer the alterations, supplementaryand withdrawn work. Implications: the overall problem is in this study is how you can reduce the use off alterations, supplementary- and withdrawn work connected to the procurement documents. Most of the alterations, supplementary- and withdrawn work in a project can be connected to these documents. To be able to reduce the cost there should be a system implemented regarding the review and coordination of the procurement documents. Limitations: This study is limited to three different projects from different municipalities, to secure a more certain result there should be more equivalent projects included in the study. The interviews are limited to the project managers that where responsible for the specific projects in this study. Keywords: alterations, supplementary- and withdrawn work, procurement documents, public procurement, specifications, regulations, technical specifications

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  • 30.
    Berglund, Angela
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Holtz, Tina
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ledarskap för ökad effektivitet i byggproduktion2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The population of Sweden is steadily increasing, which raises the need for new infrastructure and new buildings. To meet these demands the construction industry must become more efficient. According to several researchers, better leadership can be a part of accomplishing this. Discussions regarding leadership are mostly from the leaders’ perspective and usually the decisions about what kind of leadership is needed is made by the leaders themselves. Not very often do the followers get a chance to share their thoughts on what they need to become more efficient. Earlier research shows a correlation between motivation and efficiency. Therefore, this study attempt to find out what motivates construction workers.

    This study intended to examine what type of leadership construction workers think they need to become more efficient. The study’s aim was to contribute knowledge about how leadership can increase the efficiency on the construction site.

    Method: Two methods for data collection were used. A literary review based on effective leadership and interviews with construction workers about their thoughts on what type of leadership would increase their motivation and efficiency.

    Findings: This study has, by answering the research questions, contributed knowledge about how leadership can increase the efficiency on the construction site. The construction workers are of the opinion that their leaders have a big impact on their efficiency. The leaders’ knowledge and experience of the production phase as well as their ability to communicate and plan ahead were all seen as factor that affect their efficiency.

    The literary review for this study found 23 effective leadership traits. According to the construction workers the leadership skills that contribute the most to their motivation and efficiency are humility, relationship-management, and self-awareness.

    Connecting the construction workers responses to the efficient leadership theories showed that the most relevant theories for increasing the workers motivation and efficiency are Transformational and Servant Theory. The theory of Servant is the most relevant since it focuses on the followers.

    Implications: To increase the efficiency one must focus on the people in the industry. By changing the leadership based on the construction workers' opinions their efficiency can be increased. Therefore, it is recommended that leaders on the construction site work with the leadership theories Transformational and Servant and that they develop the effective leadership traits, especially the traits the construction workers find most important.

    Limitations: This study was limited to the leadership from the site supervisor to the construction workers. The focus was on what type of leadership the construction workers wanted to become more motivated and efficient. Furthermore, the study was limited to four leadership theories and effective leadership traits.

    Keywords: Efficiency, motivation, effective leadership traits, Contingency Theory, Transformational Theory, Transactional Theory, and Servant Theory.

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  • 31.
    Björling, Johan
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Fransson, Daniel
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ett utvecklande och kunskapsdelnde förättringsarbete i prefabindustrin: med stöd av Lean och Knowledge management2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The industry is still struggling with reoccurring deficits regarding quality and has therefore began to pay attention what benefits that comes with an industrial building process. With industrial building processes the companies using it can let the workers be in charge of their work processes that they find themselves in and thus help to improve and standardise them. A concept that fits these conditions very well is The Toyota production system (TPS), also known as Lean production. In the year 2016 several studies were made that showed that among Lean working construction companies it was the reach for higher quality and standardised working processes that was prioritized. Lean production and its processes contains a lot of information- and knowledge transfers and may be hard to practice in a company. Therefore further studies on how to implement these principles and tools properly are recommended.

    The aim with this study is to analyse how companies in the precast industry who works with Lean can evolve their continuous improvement process in the production process.  

    Method: This report is a qualitative case study accomplished at Ulricehamns Betong AB. The chosen methods on how to collect data are literature studies, participating observations, semi-structured interviews and document analysis.

    Findings: From the analysis of this study some problems in the improvement process could be identified, but also how they could be improved and how they could be more knowledge sharing. It was shown that the will to participate in the improvement process did varied a lot among the co-workers. A common attitude for the importance of the improvement process is needed for the continuous development, something that can be more encouraged by the organisation. Through the implementation of a mentor the company can ensure that the production process is more standardised.

    Implications: The number one thing that is most important for an evolving and knowledge sharing improvement process is that the co-workers stay motivated to participate. To motivate them, the status of individual knowledge should be raised and heard. Furthermore they should have access to continuous improvement meetings or other forums where they can exchange experiences and ideas.

    Limitations: The case study has been accomplished at a company that are using the Lean concept. The study limits to only study the improvement process in the production process of precast concrete elements. Furthermore the study is focused on how one specific company uses their improvement process and not how other companies uses theirs.

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    Ett utvecklande och kunskapsdelande förbättringsarbete i prefabindustrin - med stöd av Lean och Knowledge management
  • 32.
    Blom, Martina
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Landstedt, Sara
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Granskning av 3D-printingens möjligheter vid utformning av byggnader2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: There is today limitations of what is possible to design and in fact produce.

    In industrial construction the focus is on standardization which impedes an individual

    design form, which can be considered an architectural quality. The potential of 3Dprinting

    is growing, which is benefitting design freedom.

    The goal was to evaluate how 3D-printing in Sweden today could increase architects

    possibilities at the design process and be production adapted.

    Method: In a case study at Tengbom in Jönköping, interviews were included with three

    architects. In addition, a literature review, a telephone interview and a focus group

    interview formed the basis of the collected material. As an initial phase, a focus group

    interview was conducted, which resulted in the actors’ opinions about 3D-printing. The

    architect interviews contributed with high credibility regarding architectural qualities,

    which together with the other collection methods gave answers to the studies questions.

    Findings: The study shows that it is possible to print building components in Sweden.

    However it is not possible, with 3D-printing, to produce entire buildings. It can be

    shown that there are obstacles for the introduction of the technology, such as economy,

    Swedish laws and lack of knowledge. These should be reviewed to allow 3D-printing

    as a manufacturing method. With Rapid Ornament Production larger architectural

    qualities will conduce to, where 3D-printing allows unique solutions. Solutions no other

    technology can achieve.

    Implications: Customized and varied buildings can be achieved thanks to 3D-printing.

    Building components such as light weight walls, ornaments and details can be produced

    in Sweden today. One advantage of 3D-printing as a technology, is that it provides

    greater freedom between design and production. For further development of 3Dprinting

    a greater knowledge is recommended for industry stakeholders, regarding the

    drawing tools as well as the 3D-printing technology.

    Limitations: The result is applicable to architects, working at architectural offices

    similar to Tengbom in Jönköping. There have not been deeper studies regarding of

    printing technologies, finances, materials, time or law. A case study as research strategy

    entails an interpretation of the opinions, which limits the generalization of the results.

    Keywords: 3D-printing, design, production, architectural qualities, possibilities,

    limitations, industrial construction.

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  • 33.
    Bolling, Julia
    et al.
    Jönköping University, School of Engineering.
    Hellqvist, My
    Jönköping University, School of Engineering.
    Kommunikationsmodell mellan platschef och arbetsledare: För att hantera hinder inom interpersonell kommunikation2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this report is to analyze how the communication between a site manager and a supervisor in the construction industry can be developed. Communication is a strong influencing factor for the success of a construction project and an effective communication process results in an increased productivity and decreased failure rates, which saves both time and money.

    Method: Since this report deals with complex interpersonal conjunctions, a qualitative approach was selected. Individual interviews and observations constitutes the empirical data. Participant observations was implemented to verify that the information collected from the interviews aligned with reality and to strengthen the credibility. A combination of the theoretical framework and collected empirical data resulted in a communication model.

    Findings: Interpersonal communication is affected by personal characteristics such as prior knowledge and experiences, hindrances that complicates the communication and tools that can be used to bridging communication barriers between the parties. Stress, time pressure, misunderstandings and personality clashes are factors that hinder an effective communication. Tools to use are check questions, reformulation, clear dividing of responsibilities, education, clear directives from the company directorate and to see the coworker as an active communicator instead of a passive receiver. Where the latter is achieved by creating dialogue which creates a feeling of participation and commitment of the employee. The communication between the site manager and the supervisor should be verbal and supported by writing where the writing should be through e-mail since it simplifies the possibility to look back at previous information.

    Implications: Communication problems between site manager and supervisor depends largely on the fact that the daily working situation on a construction site is stressful, the absence of time for structured communication combined with the majority of the communication between the parties being oral contributes to an ineffective communication process. By working according to the developed model the communication between the site manager and the supervisor can evolve. Suggestions for further research is to examine how the communication model can be implemented in the work at a construction site and what results would derive of it.

    Limitations: The study is limited to the fact that all interviews were conducted with representatives from the construction section at NCC Jönköping. The level of communication studied is interpersonal communication. The study is generally adaptable to other companies and industries.

    Keywords: Communication, hindrances, site manager, supervisor

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  • 34.
    Borg, Robert
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Sperling, Jakob
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    BIMS PÅVERKAN PÅ TIDIGARE ARBETSMETODER2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Digitalization has progressed with big steps in the recent decades. This has been reflected in the construction industry where “Building Information Modeling” has been implemented. The implementation has entailed some complications for designers, existing established working methods are opposed to new software and digital instruments. There are also differences in skills between the designers who have worked long in the industry and those who are newly graduates. Those who have a long working experience do not have as high digital competence as the newly graduated but they have a much broader practical knowledge. The purpose of the study is to analyze how the implementation of BIM has affected constructors about their professional/technical competence and to develop measures to increase the digital competence so that constructors can fully utilize their professional competence.

    Method: The method used in this study is interviews. The study will be carried out through qualitative methods where the interviews are semi-structured. Several interviews have been conducted at two consulting offices in Uddevalla and Trollhättan. The interviewees are constructors with experience of construction before BIM and constructors with experience of BIM from their education.

    Findings: The study shows what factors that have contributed to difficulties in the working method BIM. Digitalization in general has affected the workflow that constructors carry out because they replace old habits. The construction industry is constantly changing, and older constructors can adapt to the system by training. This creates difficulties, which means that they require help from employees with a better digital competence. A higher digital competence is necessary to keep up with the incubation. Therefore, through good leadership, you should help older constructors, this is done by motivating them to learn how to use software to design, communicate and organize.

    Implications: There is a lack of digital competence in several constructors without education of BIM. There are also complications between constructors due to differences in skills and different perspectives on their problem solving. The study proposes that a BIM-coordinator is needed to steer the implementation of BIM in the right direction in a company and that a broader investigation must be carried out.

    Limitations: The report’s survey method was only limited to one company in addition to two offices, which meant that the perspective in the study was limited. The study focuses more on identifying the problem and finding a solution to the problem, it does not focus on how the measures should be carried out and what consequences this would have on a company.

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  • 35.
    Bosch, Petra
    et al.
    Chalmers University of Technology.
    Isaksson, Anders
    Chalmers University of Technology.
    Lennartsson, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Linderoth, Henrik
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Hinder och drivkrafter för BIM i medelstora entreprenadföretag. SBUF-rapport 130692016Report (Other academic)
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  • 36.
    Bosch-Sijtsema, Petra
    et al.
    Department of Architecture and Civil Engineering, division Construction Management, Chalmers University of Technology, Gothenburg, Sweden.
    Isaksson, Anders
    Department of Technology Management and Economics, division of Innovation and R&D Management, Chalmers University of Technology, Gothenburg, Sweden.
    Lennartsson, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Linderoth, Henrik
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Barriers and facilitators for BIM use among Swedish medium-sized contractors: We wait until someone tells us to use it2017In: Visualization in Engineering, ISSN 2213-7459, Vol. 5, no 3, p. 1-12Article in journal (Refereed)
    Abstract [en]

    Background: The pace of diffusion of BIM (Building Information Modelling) use is considered to increase with governmentalinitiatives in which public clients in countries like Finland, Singapore, United Kingdom, and Sweden begin requiring BIM as apart of the project delivery. Currently, larger contractor firms use BIM to a certain extent. However, BIM use by mid-sizedcontractor firms (that is, firms with 50–500 employees that can successfully compete with larger contractors on projects costinga maximum of 50 million Euros) is relatively unknown. Hence, the aim of the paper is to explore current use and perceivedconstraints and driving forces of BIM-implementation with respect to mid-sized contractors.

    Methods: A mixed method approach was applied, and data was collected through an interview study and a survey involvingchief executive officers or their closest sub-ordinates in mid-sized contractor firms in Sweden. The survey was based on atechnology-, organization-, and environment framework that is used in information systems research to study the use of inter-organizational information systems. The total population of firms in the survey corresponded to 104. The study presented thepreliminary results based on 32 answers (with a 31% response rate).

    Results: Fifty-eight percent of the surveyed respondents stated that they had been involved in a project in which BIM wasused in some manner. The most commonly used application included visualization, which also facilitates coordination andcommunication. The biggest perceived constraints involved partners that did not use BIM, lack of demand from clients, andthe absence of internal demand in the company. With respect tothe two last obstacles, significant differences existedbetween users and non-users. The most common perceived driving forces included the fact that BIM is perceived as ameans to follow technical development and that BIMprovides competitive advantages to the company.

    Conclusions: It is concluded that the main driver responsible for BIM-implementation is mainly determined by anindividual’s subjective positive or negative evaluation of BIM, instead of external pressure from clients and partners or by theinternal capacity and knowledge to use BIM.

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  • 37.
    Briggert, Andreas
    et al.
    Department of Building Technology, Linnaeus University, Växjö, Sweden.
    Olsson, Anders
    Department of Building Technology, Linnaeus University, Växjö, Sweden.
    Oscarsson, Jan
    Department of Building Technology, Linnaeus University, Växjö, Sweden.
    Predicting tensile strength in sawn timber using in plane fibre directions and dynamic modulus of elasticity2019In: Proceedings: 21st International Nondestructive Testing and Evaluation of Wood Symposium / [ed] Xiping Wang, Udo H. Sauter & Robert J. Ross, Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory , 2019, p. 242-249Conference paper (Refereed)
    Abstract [en]

    Machine strength grading of sawn timber is based on the relationship between indicating properties (IPs) and so-called grade determining properties (GDPs). The former are calculated using board properties measured non-destructively whereas the latter are determined by destructive tests. For T-classes, applied GDPs are tensile strength, density and modulus of elasticity in tension. Efficient utilisation of sawn timber thus require IPs predicting the GDPs with high accuracy. This study aims at deriving an IP for tensile strength in the board direction using multiple linear regression based on board properties and at applying this new IP in a grading method and calculating corresponding yield in T-classes. The nondestructive and destructive testing were performed for more than 900 boards of Norway spruce originating from Finland, Norway and Sweden. Board properties necessary for calculating this new IP were density, axial resonance frequency and in-plane fibre directions at the board’s longitudinal surfaces, and these properties were determined using X-ray scanning, dynamic excitation and optical scanning, respectively. A high coefficient of determination between IP and tensile strength was obtained, implying that this new IP predicts tensile strength better than IPs used in industry today. Furthermore, since only a part of the board is destructively tested, settings can be determined using either IPs calculated for the tested part of the boards or IPs calculated for the entire length of the boards. Employing the latter resulted in higher yields but lower coefficients of determination. Several grading machines on the market are based on this approach.

  • 38.
    Briggert, Andreas
    et al.
    Department of Building Technology, Växjö.
    Olsson, Anders
    Department of Building Technology, Växjö.
    Oscarsson, Jan
    Department of Building Technology, Växjö.
    Prediction of tensile strength in sawn timber by means of surface laser scanning and dynamic excitation2019In: CompWood 2019, June 17–19, 2019, Växjö, Sweden, International Conference on Computational Methods in Wood Mechanics – from Material Properties to Timber Structures,: Book of Abstracts, Växjö: Linnaeus University Press, 2019, p. 62-62Conference paper (Refereed)
  • 39.
    Brodin, Clara
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Karam, Mariroos
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    BIM en digital plaform: En analys i den svenska byggbranchen2021Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The increasing use of Building Information Modelling (BIM) in the construction industry contributes to better communication and collaboration between actors through the building lifecycle. Even if BIM enables better communication among the actors, problems with information exchange seem to still emerge with the usage of different software in projects as one of the most commonly perceived causes. In addition to the variety of different companies and actors involved in a project. This creates a need for a shared open digital platform that provides efficient information exchange, data update, and storage. This paper aims to investigate if a common digital platform is a solution to the communication and collaboration problems in the industry, and to verify the hypothesis according to which BIM could function as a digital platform for the sector. Actors view of a common platform, i.e., if BIM can be the common platform or evolve into a digital platform ecosystem is presented and was investigated through 33 semi-structured interviews. The respondents agreed that there are issues due to the usage of different software products and platforms, which in the end affect the information exchange. Openness between actors is needed in a project, what's challenging is the question of ownership, who owns the shared information? This paper ends with an attempt to provide insight between actors in the construction industry regarding correct BIM implementation and a shared digital platform ecosystem.

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  • 40.
    Bucht, Caroline
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Korhonen, Joanna
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Kommunikation och kunskap för minskad energiförbrukning under produktionsfasen2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The study addresses energy consumption in the production phase and focuses on how communication about energy consumption can reduce it. Most focus is currently on reducing the energy consumption of a building during the operation phase, while there is a lack of focus on the energy consumption in the production phase. One of the biggest difficulties with sustainable development in the construction industry is that each project is unique, making it difficult for parties involved to learn from previous experiences and share knowledge between different projects and actors, thereby increasing the importance of a working communication. The aim of this study is therefore to reduce the environmental impact of the construction phase concerning energy consumption, by improving communication between parties involved.

    Method: This study is performed as a case study for a specific project at one of the largest construction and property development companies in Sweden. Methods to answer the questions of the study and gather empirical data are literature studies, document analysis and interviews with parties involved in the production phase.

    Findings: Since most of the communication is handled centrally and there is an uncertainty about whose responsibility the environmental issue is during a project, it becomes a personalized question and depending on the personal interest for the environment and sustainability is for the people involved. The results show that there is currently a lack of focus on the energy consumption during the production phase. The drying of the concrete structure is the phase with the highest energy consumption and therefore has the greatest potential for reducing its carbon dioxide emissions.

    Implications: The study shows that personal interest for the environment, prioritization and allocation of resources can reduce energy consumption during a project. By including this in the QHSE-coordinator's tasks, implies in addressing the issue and energy savings can be made.

    Limitations: The study is limited to major contractors and only studies the energy consumption from the work stages foundation, framing and lock up in the production phase of a site-built concrete frame. The study does not therefore consider the energy consumption of the temporary factory. Respondents to the interviews have been selected based on expertise and involvement in energy efficiency at the construction site.

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    KOMMUNIKATION OCH KUNSKAP FÖR MINSKAD ENERGIFÖRBRUKNING UNDER PRODUKTIONSFASEN
  • 41.
    Caan, Adam
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Altun, Jonny
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Nya Plan- och bygglagen 2010:900, En konsekvensgranskning av ändringarna i planbeskedet och bygglovsprocessen2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is about the new Planning and Building Act 2010: 900 (PBL). The new act became effective on May 2 2011. The legislative changes intended to make the rules and processes concerning environmental building more efficient. According to the new provisions of PBL, there is no a right to private initiative to plan clearance. For building permits and building inspection, a series of changes occurred. Today there is a two stage building control, a building permit stage and a structural engineering control stage. A new provision of the act provides that the processing of building permits shall not exceed a maximum of 10 weeks. In addition, the duty of the control officer has been extended and all control officers must now be certified. The new PBL also includes the right to receive a starting statement that determines when a construction may commence. A mandatory construction site visit by the local housing committee has been introduced.

    This report aims to examine the effects of the plan announcement and building permit process. By demonstrating the effects there can be an increase in knowledge and understanding for future studies.

    The information in this report comes from both secondary data like reports, manuals, and Internet, as well as primary data from interviews with municipalities in the county of Jönköping, Sweden. The exam is a local survey and isn’t general for the whole country because there is a chance that the close distances between the municipalities can enable information exchange about work methods.

    The result of the studies that has been undertaken shows that the effects of the new PBL are similar between municipalities regardless of the different conditions. The changes have greatly served its purpose of streamlining the planning and building permission sector. Plan announcement means that there is a clear decision, better dialogue between the contractor and the municipality and that there are opportunities for saving resources. The 10 week limit for handling building permits has made the building permit process more effective. Starting clearance and construction visit means that the building controls have tightened.

    The non-requirement building permit constructions, the Attefallshouses, means more work for administrators because many developers deficiencies with problematic documents. This has created inefficiency. The new rule about broader announcement for the public has also created more administrative work for the administrators at the municipality.

    The problems that may arise are not necessarily due to the legislation itself, but also depends on the people who will implement the new provisions of the work.

  • 42.
    Carlehed, Sara
    et al.
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    Jostelius, Saga
    Jönköping University, School of Engineering, JTH, Construction Engineering and Lighting Science.
    VAL AV STOMMATERIAL TILL INDUSTRIBYGGNADER2023Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – the climate issue is one of the most important political issues, both in Sweden and globally. Achieving the climate goals of the Paris Agreement and the Agenda 2030 sustainability goals requires efforts to slow down global warming. In Sweden, the construction and real estate sector accounts for over 20 percent of domestic greenhouse gas emissions. Despite this, industrial buildings are not covered by the new law on climate declaration that came into force on January 1, 2022. This study investigates what is required for more industrial buildings to be built in wood and what factors form the basis for decisions on material selection in the frame. It also examines how companies in the industry work towards a transition to more climate-smart construction.

    Method – the study's objective is achieved through interviews with actors with different roles in the building construction process. The eight actors are developers, building contractors and project managers with different levels of experience and knowledge. The study has a qualitative focus as the purpose of the questions is to understand the connections and causes of how the choice of frame material for an industrial building is made.

    Result – there is most knowledge and experience in constructing steel-framed industrial buildings. There is a positive attitude and desire to build industrial buildings with timber frames where cost is the most decisive factor in the choice of frame material. The wooden frame must also have the same functional requirements as a steel frame, be delivered and assembled in about the same time. There is also a belief in the future that timber frames in industrial buildings will increase, mostly due to the need for a smaller carbon footprint.

    Discussion – the most decisive factor in the choice of frame material turned out to be the cost, similarities can be found in the theories. Environment and sustainability is something that most respondents bring up as an important factor and advantage regarding wood as a material. Despite this, a few of the respondents see these advantages as so great that they choose wood for the frame over steel. However, theories show that companies with innovative and developed sustainability plans can benefit from low operating costs but also from being seen as more attractive on the market. All respondents consider themselves to have enough knowledge to build industrial buildings in wood, which is contradicted by the theories, as a lack of knowledge about wood construction is seen as one of the decisive factors why more buildings are not built in wood today.

    Sammanfattning

    Syfte – klimatfrågan är en av de viktigaste politiska frågorna, både i Sverige och globalt. För att nå klimatmålen i Parisavtalet och hållbarhetsmålen Agenda 2030 krävs insatser och åtgärder för att bromsa den globala uppvärmningen. I Sverige står bygg- och fastighetssektorn för över 20 procent av inhemska utsläpp av växthusgaser. Trots detta omfattas inte industribyggnader av den nya lagen om klimatdeklaration som trädde i kraft 1 januari 2022. I denna studie utreds vad som krävs för att fler industribyggnader ska kunna byggas i trä samt vilka faktorer som ligger till grund för beslut kring materialval i stommen. Det undersöks även hur företag i branschen arbetar för en omställning mot mer klimatsmart byggande.  

    Metod – studiens mål uppnås genom intervjuer med aktörer inom byggsektorn med olika roller i processen när en byggnad ska uppföras. De åtta aktörerna är beställare, byggentreprenörer och projektledare med olika nivå av erfarenhet och kunskap. Studien har en kvalitativ inriktning då avsikten med frågeställningarna är att förstå samband och orsaker till hur valet av stommaterial till en industribyggnad går till.

    Resultat – det finns mest kunskap och erfarenhet att bygga industribyggnader med stålstommar. Det finns en positiv inställning och önskan om att bygga industribyggnader med trästommar där kostnad är den mest avgörande faktorn vid valet av stommaterial. Trästommen måste också kunna uppfylla samma funktionskrav som en stålstomme, samt levereras och monteras på ungefär samma tid. Det finns också en framtidstro att trästommar i industribyggnation kommer att öka, mest på grund av behovet av ett mindre klimatavtryck.

    Diskussion – den mest avgörande faktorn vid val av stommaterial visade sig vara kostnad, något som går att hitta likheter med i det teoretiska ramverket. Miljö och hållbarhet är något som de flesta respondenter tar upp som en viktig faktor och fördel rörande trä som stommaterial. Trots detta är det bara ett fåtal som ser dessa fördelar som tillräckliga för att välja trä till stommen före stål. Teorier visar dock att företag med innovativa och utvecklade hållbarhetsplaner får fördelar med lägre driftskostnader och i att bli mer attraktiva på marknaden. Alla respondenter anser sig besitta tillräckligt med kunskap för att bygga industribyggnader i trä, detta motsägs i teorierna då brist på kunskap om träbyggnation ses om en av de avgörande faktorerna till varför det inte byggs mer i trä idag.

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    Val av stommaterial till industribyggnader
  • 43.
    Cerek, Stefan
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Zaklan, Amer
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Loggbokshantering angående byggmaterial inom byggbranschen med hjälp av digitala verktyg2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Today, there is no law in Sweden that material documentation must be carried out at new constructions. The advantages of providing material documentation also called logbook is that it creates an opportunity to trace health or environmentally hazardous substances in the buildings. Studies have shown that some substances are identified as hazardous to health or the environment over time. The logbook's advantages have led to the government giving the housing and construction authority the task of drafting a proposition on requirements for carrying out material documentation for new buildings. The difficulty with the current system and the current procedure is that no standardized approach exists on how a logbook should be conducted. The aim of the work is to make a study on how documentation and management of logbooks is done. Based on the studies then come up with an alternative procedure.

    Method: The work has a qualitative approach and is implemented in combination with three qualitative methods; literature study, interviews and document analysis. The literature study provided information and knowledge about the area in question, which also led to the qualitative interviews being conducted in a proper manner. The respondents work in larger companies in the construction industry with quality, environment and work environment issues and production. The document analysis provided information and knowledge to implement the interviews and to answer the study’s questions.

    Findings: Based on the gathered material, the management of the logbook takes places in different types of digital systems. The current working method is done by using a system or using different systems at the same time, which can result in a non-optimal working procedure. Therefore, the construction industry is demanding a standardized system. Improvement potential exists in today's working procedure with the logbook. By digitizing the working method in combination with the three different digital tools, Radio Frequency Identification (RFID), Building Information Modeling (BIM) and Blockchain, the defects can be avoided.

    Implications: Consensus is needed among the various participants in the construction industry regarding which system they should use to keep the logbook at desired quality. The already available digital tools that can be used to facilitate the work process and logbook is not fully used at the moment.

    Limitations: The references and theories used in the work are from different parts of the world. These were used to see how they might be applied in the Swedish construction industry. The logbook type that has been investigated is aimed at building materials and its containing substances. The study has not investigated whether the various digital tools can be used in practice only in theory. 

  • 44.
    Ceylan, David
    et al.
    Jönköping University, School of Engineering.
    Demircioglu, Johannes
    Jönköping University, School of Engineering.
    Regler för laddinfrastruktur - Hur reagerar byggbranschen?2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    De nya reglerna för laddinfrastruktur började träda i kraft i Boverkets Byggregler 2020. Reglerna påverkar flera parter inom olika branscher som exempelvis energi- och byggbranschen. Reglerna anger att nya bostadshus ska ha laddinfrastruktur och följderna av detta är än oklara då detta är ett nytt ämne som ej hunnit undersökas i större omfattning än.

    Syfte: Syftet med undersökningen är att ta reda på hur regelverket kommer att påverka olika aktörer som omfattas av reglerna samt ta reda på hur reglerna som träder i kraft kan utvecklas.

    Metod: I arbetet genomförs en litteraturstudie där litteraturstudie där nationell och internationell forskning undersöks och jämförs för att få en klarare bild på hur kunskapsläget ser ut. Litteraturstudien fungerar då endast som ett underlag till det teoretiska ramverket. Kvalitativa data samlats in med hjälp av semistrukturerade intervjuer. Fyra stycken intervjuer har genomförts med fyra olika aktörer som har flera års erfarenhet inom byggbranschen. 

    Resultat: Alla respondenter var positiva till de nya reglerna och såg stora möjligheter, men även eventuella hinder. Möjligheterna är stora men är inte bara ekonomiska, de har även en positiv miljöpåverkan. Respondenterna syftar främst till att det kommer att gynna investeringar och främja den svenska industrin. Med en välutvecklad laddinfrastruktur kan Sverige bli en av världens största producenter och eventuellt distributörer i världen.

    Konsekvenser: Eftersom framtiden är oviss kan de uppstå hinder. Majoriteten av respondenterna var även överens om att det största hindret som dom ser är effektbehovet. Med en expandering av laddstolpar tror branschen på ett ökat effektbehov, men tills de retroaktiva kraven träder fram vet man inte hur stort det effektbehovet blir.

    Begränsningar: Rapporten är begränsad till en kommun. Laddinfrastrukturen är begränsad till byggbranschen och dess aktörer som blir berörda.

    Nyckelord: BBR, hållbar utveckling, laddinfrastruktur, byggindustrin och eldistributörer.

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  • 45.
    Crafoord, Madeleine
    et al.
    Jönköping University.
    Hedberg, Gabriella
    Jönköping University.
    Informationsflöde inom prefabprocessen: Hur kan Derome Träteknik effektivisera informationsflödet från konstruktion till produktion?2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The study aimed to investigate how the information flow at an off-site fabrication is working, from design-stage to production. More specifically, it focus on identifying effective and ineffective parts in the information flow, along with improvement opportunities to optimize the personnel’s daily work.

    Since the authors had no knowledge about where the problems in the information flow at the company was, they were not able to create a theoretical framework before the case study was made. The case study involved observation and interviews. The observation was made to identify the process and information flow at the company. The interviews were made to get the knowledge about the personnel’s opinion and to locate where the problems in the information flow occurred. With the case study as a base the theoretical framework could be made with a literature study.

    The problem areas that emerged from the case study are all mainly based from the lack of time. This is partly due to the time-consuming activities such as manual handling in the making of production technical drawing and revision of planning documents. The improvement proposal the authors present is to upgrade the computer-aided design software and to implement a planning system. The authors also consider the lack of time as a reason for shortcomings in the communication. The improvement proposal the authors present for this is to keep the personal contact and to supplement it with a system.

    The study intends to contribute with knowledge about how an information flow at an off-site fabrication may look like. It reinforces theories about why it is important to keep the personal communication when a system upgrade are implemented. The study has also contributed in proposals in which parts of the information flow that have potential to become more effective at an off-site fabrication.

    The study was limited to an off-site fabrication and only the information flow between design-stage and production was included in the study. No economic aspects were considered and only one company has participated in the study.

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    Informationsflöde inom prefabprocessen
  • 46.
    Curan, Selma
    et al.
    Jönköping University, School of Engineering.
    Hansen, Jesper
    Jönköping University, School of Engineering.
    SPEGLAR SVERIGES LÅGA GRAD AV DIGITAL UTVECKLING INOM BYGGSEKTORN ANVÄNDANDET AV BIM I PROJEKTERINGSSKEDET?: EN UNDERSÖKNING OM DAGENS ANVÄNDNING AV BIM I PROJEKTERINGSSKEDET2021Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: There are clear benefits with BIM in the design phase, but also barriers and challenges that limit the implementation of BIM in the design phase. At present, there are no requirements for BIM in Sweden, which differs from several international countries. The aim of the report is to examine the current use of BIM in the design phase in Sweden. The report is executed in hope of contributing to an increased BIM integration in the design phase and contribute with increased knowledge about how the development of BIM can increase.

    Method: The research method in this study is a survey. To achieve the aim of the report and answer the research questions, data are collected via a questionnaire that is covered by both quantitative and qualitative questionnaire questions in combination with a literature study. The questionnaire has been sent out to architects, designers and constructors at various engineering- and architectural companies in Sweden.

    Findings: Today's use of BIM in the design phase is assumed to be high and most of the participants in the survey are aware of the benefits of BIM and how it can make the workflow in the design phase more effective. Factors that prevent the implementation of BIM are assumed to go hand in hand with factors that contribute to an increased use of BIM and thus need to be considered for the use of BIM to increase.

    Implications: Sweden's low degree of digital development in the construction sector does not reflect the current use of BIM in the design phase at architectural- and engineering companies in Sweden. Common uses that architect- and engineering companies apply with BIM are collision controls, information management and visualization. By increasing knowledge and informing customers about the benefits of BIM, the use of BIM is assumed to increase. A further recommendation that assumes increased use of BIM is a requirement for BIM in public construction in Sweden.

    Limitations: The report is limited to examining the use of BIM in the design phase and only examines architectural- and engineering companies in Sweden. The respondents consist of architects, designers and constructors. The results are representative for the report but cannot be applied to all architectural- and engineering companies in Sweden as the selection method is not generalizable.

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    fulltext
  • 47.
    Daemen, Mathijs
    et al.
    Jönköping University, Jönköping International Business School.
    Hansson, Fanny
    Jönköping University, Jönköping International Business School.
    Digital Transformation and Agency in Construction Companies' Journey Toward Sustainability: A study of the Swedish construction industry2022Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Digital transformation is an important step in businesses’ quest for environmental sustainability, that changes their business models to create, deliver, and capture value from the use of digital technologies. Another field of research that concerns transformations, is research on socio-technical systems. It explains the adoption of new technologies, by incorporating the social context in which transitions happen. An industry that has been notoriously blamed for being conservative and having sustainability concerns, is the construction industry.

    Purpose: The purpose of this study was to contribute to socio-technical systems theory, by investigating how interactions in the socio-technical regime can help digitally transform established construction companies and make them more environmentally sustainable.

    Method: A qualitative case study was performed around Smart Built Environment, a strategic innovation program. From the program, nine reports were examined, and four employees were interviewed. Furthermore, three interviews were conducted with employees of three large construction companies, which were part of Smart Built Environment’s projects. The reports and interviews were used to develop a theoretical framework, which was constructed from existing literature on socio-technical systems, business models, and digital transformation.

    Conclusion: The results show that culture and habits, and policy and regulations in the regimes have the greatest influence on the digital transformation of construction companies. This is because they influence the relationships between the construction companies and other actors in the construction value chain. Changes to business models that were identified to facilitate the digital transformation were long-term collaborations, product-based development, co-creation, and using digital technologies as a use case for sustainability.

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  • 48.
    Edstrand, Gustav
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Engberg, Jacob
    Linköpings Universitet.
    Analys av centralt beslutad extern tredjepartslogistik i Vallastaden: En fallstudie gällande värdeskapande för byggentreprenörens logistikverksamhet2017Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: External logistics coordination was decided after a long procurement process while parts of the project Vallastaden already started construction. The external logistics company creates and implements a logistics solution in a short time. The municipality has no formal connection requirements on developers, but has transferred to the third-party logistics to contract with the developers.

    The goal is to examine how the implementation of the external solution contract affects residential building and how an external third-party logistics solution works value creation for the building contractor.

    Method: For data collection observation and interviews have been used as methods of work.

    Findings: In order to create favourable condition for a builder and/or contractor in the implementation of a centrally decided external third party logistics solution requires: 

    • Early involvement of third-party logistics contractor in the planning stage with the motto "first and last on site"
    • Clear and well-developed conditions for procurement of connectivity requirements, and the possibility of adaptation of the technical solution according to the customer identified needs.
    • Open and continuous dialogue at all levels within the organizational structure.

    Implications: The complexity of how building projects should plan their logistics allows a handling of the issue at an early stage in the project is crucial. If the potential of the third party logistics for construction projects should be used needs to be early dialogue between the parties involved which the project's conditions have to control how the service should be designed.

    Limitations: The problem area and the number of actors involved in the external third-partylogistics make it difficult to pinpoint exact events that contributed to the situation has become in Vallastaden. The authors have not found the source of why it has been difficult to implement third-party logistics solution at an early stage in Vallastaden. What emerged during the process is that it needs to be sought answers higher up in the organizational structure of Vallastaden, but there is work boundaries made this a priority away and therefore not addressed in this report.

    Selected methods aimed solely at Skanska role in Vallastaden. Alternative viewpoints from different developers and construction contractors in Vallastaden has partly been highlighted in logistics meetings. It is important to point out that the work contains only a limited number of viewpoints on centrally approved third party logistics based on the many actors who are part of the project Vallastaden.

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  • 49.
    Eivindson, Espen
    et al.
    Oslo and Akershus University College, Norway.
    Innvær, Berner E.
    Oslo and Akershus University College, Norway.
    Kolberg, Elisabeth
    Oslo and Akershus University College, Norway.
    Merschbrock, Christoph
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Oslo and Akershus University College, Norway.
    Rolfsen, Christian Nordahl
    Oslo and Akershus University College, Norway.
    Inefficiencies in Norwegian small-scale construction, or the problem of too long trucks?2017In: Procedia Engineering, Elsevier, 2017, Vol. 196, p. 543-549Conference paper (Refereed)
    Abstract [en]

    “When the truck arrived at the construction site it could not unload the material because it [the truck] was too long, we had to send it away […], this happens all the time in Oslo where we have to build on very small plots.” (Carpenter, Oslo). As the quote illustrates, inefficiencies and resulting low productivity remain a challenge for today’s small construction businesses. While the reasons for inefficiencies are not completely understood, various techniques for project planning and control have proven their practical value in mitigating them. Lean construction has been articulated as one of the concepts that can solve inefficiency problems. The national initiative “Lean construction Norway” initiated by government, academia, and industry, seeks to diffuse lean production principles in the construction industry. However, small to medium sized contractors remain largely excluded from the innovative practices. This article sets out to study what a small Norwegian contractor enforcing lean concepts in addressing construction inefficienciesmay gain. Ingrained in the concept of muda we exemplify waste related to waiting, overproduction, defects, inventory, motion, over processing, and transporting. We ran a case study in a small industry standard type of residential project executed by a small contractor. Data were collected based on a series of qualitative interviews conducted with the on-site personnel. The findings illustrate a variety of inefficiencies resulting in low productivity. We expect that management inspired by lean principles in conjunction with modern planning methods such as building information modelling may improve project delivery in Norwegian small-scale construction.

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  • 50.
    Ekwurtzel, Sebastian
    et al.
    Jönköping University, School of Engineering.
    Svensson, Fabian
    Jönköping University, School of Engineering.
    RISKBETEENDE PÅ BYGGARBETSPLATSER: VERKLIGHET OCH MÖJLIGHET2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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