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  • 1.
    Aarts, Mariëlle P. J.
    et al.
    Building Physics and Services, Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
    Aries, Myriam
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Jönköping University, School of Engineering, JTH. Research area Built Environment. Building Physics and Services, Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
    Diakoumis, Adonia
    Building Physics and Services, Department of the Built Environment, Eindhoven University of Technology, Eindhoven, the Netherlands.
    van Hoof, Joost
    Fontys EGT—Centre for Healthcare and Technology, Fontys University of Applied Sciences, Eindhoven, the Netherlands.
    Shedding a light on phototherapy studies with people having dementia: A critical review of the methodology from a light perspective2016In: American Journal of Alzheimer’s Disease and Other Dementia, ISSN 1533-3175, E-ISSN 1938-2731, Vol. 31, no 7, p. 551-563Article in journal (Refereed)
    Abstract [en]

    Light therapy is applied to older people with dementia as a treatment to reset the biological clock, to improve the cognitive functioning, and to reduce behavioral symptoms. Although the methodological quality of light therapy studies is essential, many aspects concerning the description of the lighting applied are missing. This study reviewed light therapy studies concerning the effects on people with dementia as a way to check the methodological quality of the description of light from a light engineering perspective. Twelve studies meeting the inclusion criteria were chosen for further analysis. Each study was scored on a list of aspects relevant to a proper description of lighting aspects. The overview demonstrates that the overall quality of the methodologies is poor. The studies describe the lighting insufficiently and not in the correct metrics. The robustness of light therapy studies can be improved by involving a light engineer or specialist.

  • 2.
    Aarts, Mariëlle P. J.
    et al.
    Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    Aries, Myriam
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    Straathof, Jochem
    Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    van Hoof, Joost
    Centre for Healthcare and Technology, Fontys University of Applied Sciences, Eindhoven, Netherlands.
    Dynamic lighting systems in psychogeriatric care facilities in the Netherlands: A quantitative and qualitative analysis of stakeholders’ responses and applied technology2015In: Indoor + Built Environment, ISSN 1420-326X, E-ISSN 1423-0070, Vol. 24, no 5, p. 617-630Article in journal (Refereed)
    Abstract [en]

    Long-term care facilities are currently installing dynamic lighting systems with the aim to improve the well-being and behaviour of residents with dementia. The aim of this study was to investigate the implementation of dynamic lighting systems from the perspective of stakeholders and the performance of the technology. Therefore, a questionnaire survey was conducted with the management and care professionals of six care facilities. Moreover, light measurements were conducted in order to describe the exposure of residents to lighting. The results showed that the main reason for purchasing dynamic lighting systems lied in the assumption that the well-being and day/night rhythmicity of residents could be improved. The majority of care professionals were not aware of the reasons why dynamic lighting systems were installed. Despite positive subjective ratings of the dynamic lighting systems, no data were collected by the organizations to evaluate the effectiveness of the lighting. Although the care professionals stated that they did not see any large positive effects of the dynamic lighting systems on the residents and their own work situation, the majority appreciated the dynamic lighting systems more than the old situation. The light values measured in the care facilities did not exceed the minimum threshold values reported in the literature. Therefore, it seems illogical that the dynamic lighting systems installed in the researched care facilities will have any positive health effects.

  • 3.
    Aarts, Mariëlle P.J.
    et al.
    Eindhoven University of Technology, Eindhoven, The Netherlands.
    van Duijnhoven, Juliëtte
    Eindhoven University of Technology, Eindhoven, The Netherlands.
    Aries, Myriam B. C.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science. Eindhoven University of Technology, Eindhoven, The Netherlands.
    Rosemann, Alexander L.P.
    Eindhoven University of Technology, Eindhoven, The Netherlands.
    Performance of personally worn dosimeters to study non-image forming effects of light: Assessment methods2017In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 117, p. 60-72Article in journal (Refereed)
    Abstract [en]

    When determining the effects of light on human beings, it is essential to correctly measure the effects, and to correctly measure the adequate properties of light. Therefore, it is important to know what is being measured and know the quality of the measurement devices. This paper describes simple methods for identifying three quality indices; the directional response index, the linearity index and the temperature index. These indices are also checked for several commonly used portable light measurement devices. The results stresses what was already assumed, the quality and the outcome of these devices under different circumstances were very different. Also, the location were these devices are normally worn has an impact on the results. The deviation range between worn vertically at eye level and the wrist is between 11% (outdoor) to 27% (indoor). The smallest deviation, both in indoor and outdoor, was found when the device was placed on the sides of the eye (7%). 

  • 4.
    Agnesson, Stina
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Bagger-Sjöbäck, Josefina
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    PREFABRICERADE SMÅHUS PLANLÖSNINGAR: En jämförelse mellan tillverkare och kund2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med arbetet är att analysera utformningen av planlösningarna i prefabricerade småhus. Resultatet ska kunna utnyttjas som underlag vid planlösningsutformning och möjliggöra planlösningar med färre kundändringar.  

    Metoder som används är litteraturstudier, intervjuer och en fallstudie. Fallstudien är gjord med material från företaget Anebyhus som tillverkar prefabricerade småhus. Ur en av deras kataloger valdes tre olika hus med snarlika förutsättningar. Det som analyseras är tillverkares och kunders prioriteringar samt de vanligaste kundändringarna. Problemet är att om kunden ska bli nöjd med den slutliga planlösningen måste kunden och tillverkaren ha liknande kvalitetsprioriteringar. Ändringar som återkommer frekvent är ett tecken på en svaghet i ursprungsplanlösningen.

    Resultaten visar att tillverkare av prefabricerade småhus möter kundernas behov och önskemål genom prioriteringar av livslångtboende och flexibilitet i planlösningen. Kunderna visar prioritering av mer bänkytor i köket, vardagsrummet storlek och samband till köket och att alla i familjen ska få varsitt sovrum. De kundändringar som förekommer mest frekvent är minskning av antalet klädkammare, sammanslagning av teknik och klädvård samt att ändra till en U-formad köksuppställning. 

  • 5.
    Agriam, Pia
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Socialt hållbart boende2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    We need more research about what gives man good conditions for quality of life in a home environment. Social sustainability is a topic that is cherished more than ever in the world of architectures. The goal is to develop a knowledge base based on the experiences of users, architects and clients that can be used for the design of residential areas with apartment buildings.

    To achieve the goal there are questions to be answered as: "How is socially sustainable housing valued, according to architects and clients, when residential areas with apartment buildings are designed?" and "How are the values of social sustainability perceived, in residential areas with newly constructed apartment buildings, of the residents?" The questions are answered by means of an survey and several of interviews which together constitute a qualitative research.

    The results show that social sustainability can be seen from different angles. It is common to observe social sustainability from a community perspective and from an urban perspective according to scientific references. As an overall summary it is the beautiful shape and appearance of a building and its functionality weighed in with a reasonable cost that creates a socially sustainable housing according to interviews with architects and clients. It is about balance between beauty, functionality and economy, which together create a housing that lasts over time and confirms the human social dignity. According to those living in the area of Nysäter in Mölnlycke as the studied phenomenon, socially sustainable housing stands for comfort, security, privacy and community. Access to nature and outdoor activities, fresh air and good neighbourship are other factors that are highly valued. Socially sustainable housing has therefore connections to both physical parameters as well as non-physical qualities that needs to be linked with each other.

    The summarized results highlight the essential aspects that should be included in the planning of a new residential complex for it to be socially sustainable for residents. The knowledge base has a logical order from analyzing an unspoilt area with its qualities to analyze how the private residence must meet human needs for well-being.

    The Report is wide in its choice of subject tough it is limited to man's relationship to the dwelling and residential area in social contexts, how individuals perceive their environment both in and outside their home. With additional constraints had a deeper research been able to implement on a specific theme.

  • 6.
    Ahlberg, Oskar
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Hultgren, Patrik
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    KL-träbyggnad utan heltäckande väderskydd - Ett mer fuktsäkert förfarande2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this study was to produce a template for how to design CLT buildings moisture-safer and to make recommendations for a moisture-safe working method. CLT is a new building material where there is a need for standardization to meet the requirements and recommendations that exist. Greater consideration needs to be given to moisture in order for people's hygiene and health not to be affected.

    Method: By collecting data using a case study of a multi-story house in CLT, material handling as well as design of framework and weather protection are shown. Design of framework appears through document analysis of design documents for three CLT house projects. Furthermore, the industry's approach and experience are disclosed through interviews of people with different subject-relevant knowledge.

    Findings: By, in the early design stage, prioritizing moisture safety for both construction- and use stages the risk of moisture-related problems is reduced. Furthermore, it should be continuously and jointly worked with moisture safety between disciplines in the project. Building components to take special account of and measures to do this are presented as well as recommendations for a more moisture-proof working method.

    Implications: The results of the study should be a complement to ByggaF, this is because the result specifically addresses CLT. Through implementation, the hope is that the result will reduce the risk of moisture-related problems in CLT buildings. Furthermore, higher requirements should be set on moisture safety in CLT construction, as the result of the current working method is unknown and the precautionary principle should be applied.

    Limitations: The study's result, in form of the design template that is generated, are mainly applicable to architects and designers as only the framework is investigated. The result is generally applicable for new-construction of multi-story buildings in CLT which are constructed in Sweden. Furthermore, measures to reduce the risk of moisture-related problems are being investigated and does not refer to people's influence by microbial growth.

  • 7.
    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
  • 8.
    Ahlgren, Josef
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andersson, Stefan
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Klintenheim, Johannes
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Uppvärmning och miljöpåverkan: -en jämförelse mellan fjärrvärme och bergvärme i villa2008Independent thesis Basic level (professional degree), 10 points / 15 hpStudent thesis
    Abstract [en]

    Many of todays studies show that district heating is one of the betteralternatives as heating source because of its low environmental load.

    The energy source is often leftovers from other processes producing energy or waste, like garbage or chips.

    Electricity in combination with geothermal heating is another heating system that has increased sharply during the last years, and also this system decreases the discharges that have negative affects

    on the environment compared to several other heating methods.

    This report aims to, concentrated towards these two different heating systems, estimate the amounts of discharges they indirect cause and how the environment is affected.

    We have calculated the mean value for discharges of carbon dioxide, nitrogen oxide, sulphur oxide and dust generated from electrical power used in Sweden.

    Through interviews and research we have gained data for the same substances that district heating based on combustion of garbage and biofuel generates.

    We have also in cooperation with a housing company chosen a building we see representative for many of the new single-family houses built in Sweden today.

    Based on its shape and appearance we theoretically created three alternatives of the same house, each of them with climate screens different from each other.

    Together with the amounts of discharged environmental affecting substances, these houses were the base for our calculations and studies when investigating the different heating sources environmental effect.

    The results have thereafter been analyzed and discussed from different angles.

  • 9.
    Ahlstedt, Simon
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Poomann, Siim
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Uppgradering av prefabricerad villa till passivhus, baserad på en husmodell från Götenehus AB2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Rising energy prices, growing energy use and the current climate debate is a major contributing factor to today's search for new, more economical ways to use energy. The Swedish national building and planning department (Boverket) places greater demands on energy use in new housing. Local governments also place specific requirements on certain residential housing projects in addition to the requirements of Boverket, i.e. only passive houses may be built in certain areas. The terms passive house, zero-energy house and plus-energy house are becoming increasingly common in the construction industry and house manufacturers want  to offer products that meet these new requirements.

    This thesis examines whether it is possible to upgrade a pre-fabricated house so that it meets the requirements to be classed as a passive house according to FEBY (translated - Forum for energy-efficient buildings). The study is based on established calculation and production techniques used in Götenehus AB, a manufacturer of prefabricated homes. A case study based on the upgrade of a house from Götenehus is performed and the results are compared with the original house from energy and economic points of view. The production stage is also taken into consideration to see if the engineering solutions required for the upgrade can be produced with the methods in use today.

    The methodology used to process the subject have been literature studies, a case study, own calculations and consultations with staff at Götenehus and other people, who have knowledge on the subject. Energy calculations have been made using the energy  calculation software TMF-Energy v2.1, which Götenehus currently uses to calculate the energy performance of their houses. The results show that it is possible to upgrade the original house to meet the requirements for passive houses with changes made in the building envelope and heating and ventilation systems. The solution presented includes changes in all parts of the building envelope and replacement of the ventilation and heating systems. Instead of the exhaust air heat pump in the original house, a district heating system in combination with solar panels are used. The ability to combine different systems has been limited to the combinations that were available in the calculation software. The results also show that the investments needed for construction and installations are not financially justifiable. Also, the running costs for the passive house are bigger. The energy consumption for the passive house remains the same as in the original house.

  • 10.
    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.

  • 11.
    Ahlström, August
    et al.
    Jönköping University, School of Engineering.
    Elsberg, Mathias
    Jönköping University, School of Engineering.
    Nollvisionen om pappersritningar i byggbranschen - Hur kan en 3D-modell bli bygghandling2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 12.
    Ahmad, Rojin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Selmani, Antigona
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Arbetsmotivationens påverkan på kvaliteten på flerbostadshus2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Several studies show that work motivation in a workplace affects the individual's ability to perform and this may result in construction errors such as unnecessary economical costs and additional work hours. The aim of this study is to investigate the link between construction errors and work motivation as well as its impact on the quality of an apartment building. Method: To complete the objective of this study literature studies, questionnaires and interviews were conducted. The literature study includes scientific articles, doctoral dissertations and encyclopedias. These are taken from, among other things, the university library databases. The surveys consist of 21 questions based on Herzberg's two-factor theory. The interviews are semi-structured and the questions are based on the results of the survey. Findings: The results show that the link between work motivation and construction errors depends on knowledge, experience, commitment, stress and time shortage, communication, chord, salary, benefits and lack of leadership. In the construction companies that were included in this study, there is a lack of motivation among professionals, and the reasons for this are mainly due to benefits from the company and chord wages. The building-related consequences that result from motivation decline prove to be economical and time-consuming. The economic consequences show huge error costs. The time suggests that errors and shortcomings in homes lead to additional working hours in order to correct the errors that occurred during the production period. Restrictions: The study includes ongoing housing projects in Jönköping where supervisors and occupational workers are current. Question one is generally answered when it is not considered corporate, as is the last question. Issue two, on the other hand, only applies to these investigated projects.

  • 13. Al Hassan, Rami
    Underlätta utvärderingen av digital beläggning genom undersökning av en semantisk datastruktur för BIM-baserad FM2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The operational phase maintains the largest proportion of the building’s lifecycle cost. Moreover, the costs of the operational phase in a building’s lifecycle could be five to seven times higher than the initial investments. However, studies show that energy savings can be between 30-42% by performing occupancy detection in buildings. Therefore, this research paper is focused on assisting and facilitating BIM-based FM integration for occupancy assessment to support various evaluations of a building. The chosen approach to reach the aim of this study is the semantic web technology, considering the advantages it can provide in contrast to other web services such as SOAP or RESTful. A case study was conducted of a room located in the first floor of the school of engineering (JTH) building at Jönköping University. The case study investigated the data structure for the technologies which might be installed in the room later and the geometrical information of it. The used ontology in this study is RealEstateCore (REC). Furthermore, a literature review was conducted to investigate the occupancy information which can be gained by the technologies in that room. Results show that presence, location and count of occupancy can be obtained by CO2, temperature and WiFi positioning technol-ogy. However, every sensor has some exclusive properties and constraints for occupancy detection and estima-tion. Thus, the fusion of various sensors is an advantage as it can significantly increase the efficiency of indoor occupancy assessment. Also, the semantic web provided homogeneous data format that allows for greater in-teroperability between the BIM information and those technologies information. Moreover, REC ontology pro-vided most of the required semantics to describe room A and the CO2 and temperature sensors it might contain. However, the ontology lacked some of the required semantics to satisfy the description of the WiFi positioning system. Thus, extending the ontology to satisfy those required semantics is needed to reach more optimized results of the semantic web.

  • 14.
    Alexandersson, Anders
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Gynne, Sven
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ekonomisk utvärdering av betonggjutformar2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This report will try to evaluate the use of rented concrete casting moulds, which are used to build walls and system of joists. The evaluation is only examining the economical aspects.

    The cost of using concrete casting moulds is a big part of the total production expenses. Therefore it is important that the calculated price not exceeds the final costs of the casting moulds. The calculated price is the price used in the process of making an offer.

    The evaluation consists of a comparison of the calculated price and the final costs for three building projects. It also evaluates the exploitation of the concrete casting moulds for each project.

    The report is made by Sven Gynne and Anders Alexandersson at School of Engineering, Jonkoping University, in cooperation with PEAB Jonkoping. The evaluation is strictly based on the calculated price and final cost of rented concrete casting moulds, only the moulds themselves, not the labour costs.

    Educational visits have been made to the three projects gathering facts. The conclusions we have drawn are that the difference between the calculated price and the final costs are considerable, especially one project have a greater difference than the others. The reasons for that are among other things tight building ground and a complicated building construction.

  • 15.
    Almén, Christofer
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Samzelius, Olof
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Effektivisering av en tjänsteleverantörs processer: Genomfört som en fallstudie på köksprojekt2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Produktionskostnaderna i byggbranschen ökar ständigt och i en rapport utgiven av

    Sveriges byggindustrier kartläggs att uppemot 30-35 % av den totala

    produktionskostnaden i ett byggprojekt kan betraktas som slöseri.

    Slöseri kan beskrivas som de förbrukade resurser som inte skapar något värde för

    kunden, såsom förflyttning av material, väntan, avbrott, lagerhållning och

    överproduktion.

    Studien är genomförd på köksprojekt där Peab byggservice agerar tjänsteleverantör och

    bistår Ikea med monteringstjänster. Studien baseras på ett rikstäckande avtal som rör

    all typ av montering av Ikeas sortiment, dock har i denna studie endast monteringen av

    kök studerats. De förbättringsområden som har identifierats i rapporten har sedan

    analyserats och diskuterats med hjälp av verktyg från Lean. I rapporten benämns Peab

    byggservice som tjänsteleverantör och Ikea som leverantör.

    Syfte: Syftet med arbetet är att effektivisera en byggtjänsteleverantörs processer för att

    uppnå en ökad lönsamhet.

    Metod: För att uppnå målet och besvara frågeställningarna har arbetet utförts som en

    fallstudie av köksprojekt. Kvalitativa intervjuer och dokumentinsamling har använts

    som metoder och har varit en del av fallstudien. För att inhämta stöd i teorin och

    metoder som lämpar sig i det aktuella fallet har en litteraturstudie gjorts.

    För att identifiera slöseri i den befintliga processen har en värdeflödesanalys uppförts,

    det är ett verktyg från Lean med syfte att synliggöra köer, och andra icke värdeskapande

    aktiviteter.

    Resultat:

    I rapporten har:

    ● Processen gällande ett köksprojekt kartlagts.

    ● Olika former av slöseri identifierats.

    ● Verktyg från Lean analyserats för att minimera slöseri.

    Detta har lett till förslag på:

    ● Reducerade ledtider genom kombinerade aktiviteter.

    ● Kortare processtider genom effektivisering.

    ● Metoder för långsiktiga lösningar för att på sikt uppnå en effektivare process.

    Konsekvenser: Utifrån rapportens resultat konstateras möjlighet till förbättring. Slöseri

    har identifierats och förbättringsåtgärder med hjälp av framtagna teorier bedöms vara

    möjligt.

    Begränsningar: Resultatet är kopplat till generella problem och ger förslag på

    förbättringsarbete i de fall där en entreprenör agerar tjänsteleverantör åt en leverantör.

    Nyckelord: Processeffektivisering, Lean Production, Slöseri, Värdeflödesanalys.

  • 16.
    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.

  • 17.
    Altgärde, Kristoffer
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andreasson, Joel
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    En utredning av kommunala markanvisningspolicyer: Påverkan av lag 2014:8992016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Det är sedan tidigare tydligt att det funnits problem och delade åsikter kring arbetet med markanvisningar innan lag 2014:899 trädde i kraft. Arbetets syfte var att undersöka om arbetet har förändrats efter att lag 2014:899 trädde i kraft. Målet med arbetet är att utreda de valda kommunernas markanvisningspolicyer och deras erfarenheter av arbetet med dessa. Förbättringsåtgärder föreslås efter att ha belyst svagheter i de markanvisningspolicyer som undersöktes, med utgångspunkt i lag 2014:899 samt punkter specificerade av Caesar et al. (2013). 

    Ett dokument med förslag till vad en markanvisningspolicy bör innehålla har tagits fram. Dokumentet kan underlätta kommuners arbete med markanvisningspolicyer i fortsättningen.

  • 18.
    Andersson, Annie
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Matic, Tamara
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Jämförelse av fyra trärena fasadpaneler beträffande utseende, miljöpåverkan, beständighet och kostnad2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte: Trä är ett förnyelsebart material som bidrar till mindre miljöpåverkan än andra material. Klimatförändringen leder till ökad nederbördsmängd som ställer högre krav på beständighet hos fasader, samtidigt ska ytterligare miljöpåverkan undvikas i bästa mån. Denna rapport utreder modifierat trä, ett sätt att förbättra träs beständighet som inte kräver underhåll och är ett alternativ för framtiden. Målet är att jämföra tre modifieringsmetoder, acetylering, furufrylering och värmebehandling, med cederträ beträffande beständighet, miljöpåverkan, kostnad och utseende för att öka användandet av modifierat trä som trärent fasadmaterial. Metod: Litteraturstudie visade på forskningsfronten för modifieringsmetoderna och dokumentanalysen gav kompletterande data om produkternas miljöpåverkan, utseende och beständighet. Intervjuer gav inblick i aktörernas roller vid valet av fasadmaterial samt klargjorde kostnader för metoderna. Ytterligare intervjuer gav kompletterande data till dokumentanalysen och visade skillnaden mellan beständighet och miljö- påverkan för modifieringsmetoderna. Observationer gjordes för värmebehandlat trä och furfurylerat trä. Resultat: Arkitekter och förvaltare har en stor påverkan på valet av fasad men det är beställaren som fattar beslut. För beställaren är priset den viktigaste parametern och därför skulle de flesta byggherrar välja värmebehandlat trä, det billigaste alternativet. Dock rangordnade de flesta miljöpåverkan som den viktigaste parametern som visar på att aktörerna går mot att använda metoder som är bra för miljön. Acetylerat trä visade sig vara det alternativet som forskare föredrar ur beständighetssynpunkt. Det är viktigt att veta vilka parametrar som är väsentliga för byggnaden och utifrån dem avgöra om fasaden är värd kostnaden som modifierat trä medför. Konsekvenser: Att använda modifierat trä är dyrt, men ett billigare alternativ än cederträ. Aktörerna tycker dig se en framtid för dessa metoder, men eftersom metoderna är dyra är marknaden begränsad till nischade beställare eller detaljplaner och främst användbara i mindre projekt. För att öka användandet av modifierat trä krävs större kunskap på marknaden, flera referensobjekt som kan hjälpa beställare att välja metoden samt tid och pengar i projekt för att utvärdera och välja modifierat trä. Begränsningar: Dokumentanalysen gav användbar empiri, men utbudet var begränsat då det fanns gott om information om vissa behandlingsmetoder och mindre om andra. Intervjuerna gav mycket empiri men visade på en okunskap om metoderna ute i branschen, trots avgränsningen till aktörer som aktivt arbetar med trä i byggnaden, vilket gjorde sista frågeställningen svårbesvarad. Överlag är en begränsning att det endast finns ett fåtal fasader med modifieringsmetoderna att utreda, vilket gjorde observationerna svåra.

  • 19.
    Andersson, Daniel
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Andersson, Ludvig
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Vad skapar boendekvalitet?: Analys av småhusområden2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis has been to signify what creates quality for the dwellers. By

    creating a definition of the term we have showed how well the quality

    criteria’s has been fulfilled in the newly built one family house area Pumpkällehagen in Viskafors.

    The questions the thesis gives answers to is: What is quality for the dwellers in

    housebuilding of today? and How well have these quality aspects been carried out in tract

    housing areas? These questions have taken us to our main goal: To describe what quality

    for the dwellers is and how well it has been carried out in a certain area.

    The literature review is describing what was published before the making of this thesis.

    From four different publications within the concept of quality an analysis template has

    been enacted. This template has been used for our case study, but is also supposed to

    work in future analysis of tract housing areas.

    Interviews was carried out with the areas architects; Ola Nylander and Mattias Karlsson,

    as well as the client; Mikael Bengtsson. From these we have gathered their point of view

    on the background of the area, as well as their view on the term quality for the dwellers.

    Our work has brought us to enact nine different quality aspects, which we consider

    creates quality for the dwellers:

    • The Non-measurable properties

    • The rooms relative connections

    • Sufficient and user-friendly property complements

    • The property complements connection to the apartment

    • Location of the apartment and connections to the environment

    • Opportunities of outdoor activities

    • Orientation and transportation within the area

    • The social unity

    • The cost of the apartment and its form of tenure

    From the case study, using the analysis template, we can state that Pumpkällehagen is a

    very successfully built area where most of our assessment criteria’s and quality aspects

    have been fulfilled. That makes the quality for the dwellers as a total very high.

    We reach the conclusion that quality for the dwellers is what make you feel comfortable

    in your home, and therefore makes you stay.

  • 20.
    Andersson, Henrik
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Patrik, Nolerås
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    UTVÄRDERING AV OLIKA BYGGPROJEKTS BRISTER UTIFRÅN GARANTIBESIKTNINGSPROCESSEN2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis is ordered by Peab Sweden AB Regional Jönköping and concerns of warranty inspections.

    The intention is to work out a basis, which show the most common complaints is the warranty inspections, and make a small analysis on what causes them to be. The report also presents possible solutions to prevent the occurrence of defects. It also covers the issue of how the client looks at Peabs way to overcome the objections of warranty inspections. The report has the following issues:

    •What are the most common errors observed during the warranty inspection?

    •What are the causes of complaints?

    •What can be done to reduce the number of complaints?

    •How the customer thinks that the complaints be addressed?

    Twenty-five Guarantee survey records from the projects Peab has done in recent years has been the starting point for the investigation. In the protocols, we have categorized the remarks and made a compilation of common remarks. Through interviews with inspectors, buyers, site managers and Peab's inspection team the results have been analyzed and interpreted.

    These survey methods have resulted in various proposals for measures that can reduce the remarks. An example may be to inform professional workers in the building about what the most common remarks are and how to guarantee that these can be prevented.

    The compilation is categorized according to the most common complaints, construction types, actors and types of buildings.The compilation of inspection protocols showed that the cracks are the most common complaints. The interviews gave confirmation that the survey compilations of protocols were equivalent to reality.

    The conclusion is that the most common complaints are mainly cracks in the wall corners, roof angles and doors that need to be adjusted. These remarks are mainly due to the tight construction times, sloppy and wet materials that are installed. But there are also many other factors contributing to many of the common faults of warranty inspection that cannot be defined as a single cause. Interviews with clients revealed that they are satisfied with the way Peab remedy defects observed at guarantees, while the survey does not disturb the residents/production.

  • 21.
    Andersson, Madeleine
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Rudengren, Nanny
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Valmöjligheter i samband med prefabricerade badrum2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This report deals with prefabricated bathrooms and the advantage, during the production process, they have compared to ordinary produced bathrooms.

    The work is done together with the building company JM. The common task is to investigate if the manufactures, in spite of standardized design can meet the concept of JM, i.e. high flexibility and adjustment towards the customer. In JM they are doubtful to the method, as they did not yet worked with prefabricated modules and think that the choises for the costumer will be limited.

    There will be a short resume of the progress of the bathrooms and its importance as sanitary and wellbeing.

    The recent problems with damage caused by damp in bathrooms. Have resultade in regulations. These rules, will be briefly reported.

    There will also be a short review of some interviews with persons who have experience of prefabricated bathrooms.

    Different manufacturing methods will be reviewed and how different modules will be installed in to the houses.

    Concerning the economy we have accepted the figures of the manufactures.

    Prefabricated building is a method to shorten the production time on the working site. It will be done through manufactoring buildingblocks in factories. The blocks could be simple beams or complete modules. Therer is a great deal of advantages for instance the productions will not be depending of the weather.

    The quality will also be more uniform, since each part is produced independent of earlier parts.

    We have learned about the planning process, construction and installing and we think that not only JM but also other building companies could have a lot to win in this way of building

    The problems we have noticed are:

    • Very accurate planning is required from the contractors

    • The transporting factors restrict the flexibility and the size of the modules

    • The modules take more space than the ordinary way to build

    • The modules required depression in the ground beam layer in the area where it should be placed. This will be calculated for during the constructing period.

  • 22.
    Andersson, Magnus
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Problematik och lösningar vid våtrumsstambyten2008Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [sv]

    Litteraturstudier visar att det mellan år 1961 och 1970 byggdes 600 000

    flerbostadshus i Sverige, tiden är nu inne för en renovering av dessa byggnaders

    våtrumsstammar. De tekniker som konkurrerar om de stora renoveringsarbetena

    är den klassiska stambytesrenoveringen, Relining och Prefab-badrum. Huvuddelen

    av denna uppsats utgörs av en undersökning av de tre teknikerna men rapporten

    beskriver också problem som kan uppstå vid renoveringar av våtrumsstammar och

    den ger en allmän redovisning för Sveriges byggnadsbestånd.

    Den klassiska stamrenoveringsmetoden, då det gamla badrummet rivs ut och ett

    nytt badrum byggs upp utifrån den gamla stommen, är ett omfattande och

    tidskrävande projekt. För att minimera bland annat kostnader, byggtid och

    byggavfall har man tagit fram nya, mindre tidskrävande tekniker.

    Så sent som år 1990 gjordes den första Relining renoveringen i Sverige. Denna är

    idag intakt vilket tyder på att livslängden för denna typ av renovering är minst 18

    år. Tack vare att rören gjuts får de nya rören varken fogar eller skarvar, vilket

    minskar risken för fuktskador. Efter ett stambyte då man använt sig av Relining

    kan dock en mindre kunnig konsument tro att badrummet är intakt och kommer

    att så vara en lång tid framöver, men eftersom endast ledningarna renoveras, skulle

    detta kunna leda till att ett tätskikt kan fortsätta att läcka utan något ingrepp görs.

    Prefab-badrummen, vars teknik också är ny, bygger på att ett nytt badrum byggs i

    det gamla, vilket minimerar rivningsarbetet. När Rum i Rum AB renoverar

    badrummen använder de sig utav en ventilationsspalt för att eventuell framtida

    fukt ska kunna ventileras ut genom öppningen vid tröskeln in till badrummet.

    Detta är en prisvärd renovering som innefattar ett framtidstänkande, då eventuella

    läckor kan upptäckas direkt så några skador inte hinner bildas. Det finns dock en

    risk för en ”prefab” känsla ges, det vill säga mindre valmöjligheter när det gäller

    utformningen.

    Nu när miljonprogrammet kommer att behöva en stamrenovering anser jag att

    Prefab-badrummen är det bästa alternativet. De flesta av dessa badrum har

    liknande eller till och med samma utformning, vilket skulle gynna den utvecklade

    logistiken som finns inom Prefab-badrummen för att då hinna med all renovering

    som behövs.

  • 23.
    Andersson, Marie
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Eriksson, Sophie
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Prefabricerade Passivhus2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    European Union has made a new decision that all new built houses by 2020 shallbe near-zero energy houses. Boverket’s definition of near-zero energy housesintends buildings with good energy performance in which a proportion of theamount of energy that must be added to the building is made of renewable energy.Passive House is a set of requirements from FEBY designed to build energyefficient buildings. This is achieved by reducing loss of heat through the buildingenvelope and to take advantage of the passive heat from solar radiation,installation and heat sources like people living in the house.This project has been made with help of Anebyhus and one of their model houseshave been examined from the report’s issues, including Anebyhus’s energyperformance, requirements for the manufacturing and assembly, how theenvelope must be improved to fulfill the requirements for the Passive House andwhat energy calculation programs are available on the market.The report aims to provide solutions for energy efficient houses that are adaptedfor production of house building.Two visits to Anebyhus has been done to study their manufacture and assemblyof building elements. The Energy calculation programs that have beeninvestigated calculates the specific energy consumption of a building.Anebyhus manage today BBR’s requirement of 55 kWh/m2 and year, but has notbegun designing or building any Passive Houses. They have no specialrequirements for the design of their houses only that it should be possible to buildusing their present manufacturing and assembly process. The dimentions of thebuilding elements is mainly restricted by the ability to transport the items on thetruck to the construction sites.The important part of prefabricated construction is the assembly because it isimportant that the house is built tightly so that no moisture or air leakage gets into or out of the building. This is particularly important in Passive House buildingas the construction making demands higher accuracy.The focus of the report is on the building envelope to Anebyhus’s model house.To manage the stricter requirements that Passive House needs the whole buildingenvelope needs to be replaced with better insulated constructions. Also theheating and ventilation systems must be changed to handle the requirements.Energy calculations were made both by hand and by using the energy calculationprogram TMF. The results show that the Passive House we studied just manageFEBY’s demands for a Passive House, which is 50 kWh/m2 and year when solarpanels are installed on the roof to cover the needs for hot water in the summer.The conclusion is that Anebyhus doesn’t have a particularly long way to go in thePassiv House technique, as the house Sadelvägen, which we studied, basicallyfulfill the requirements for a low-energy house. To meet the requirement withoutthe solar panels, extra insulation would be needed, though the machines atAnebyhus aren’t capable of that today.

  • 24.
    Andersson, Nicklas
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Knutz, Per
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Etablering av turistboende i fjällmiljö2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Sälen is the biggest ski resort in northern Europe and is under development to meet the tourist requirements. Skistar AB own and manage ski resorts in Sweden and Norway. Skistar AB is planning for a new Skilodge in Hundfjället housing 300 beds to enhance the area as a ski resort.The purpose of our final thesis work is to gather knowledge about how tourist housing in ski resort works. The aim is to investigate controlling factors when you exploit a tourist housing in the mountains. This will end up in a proposition of a Skilodge in the centre of Hundfjället.

    After meetings with Skistar AB diagrams with wanted functions and spaces have been worked out. Inventories of the area have been done at the site in the centre of Hundfjället where buildings and surroundings have been inspected.Reference projects have been studied in literature and on the Internet, but also on site in Sälen. Different types of housing have been studied to get an understanding about housing in the mountains. Laws and rules have been investigated as well as the expression “Storslagen Fjällmiljö” because these resorts lies in sensitive ecological environments and animals and environments needs to be taken under consideration.

    Based on these conditions and the troll theme in Hundfjället a proposition of a Skilodge has been designed. This proposition will later on be presented for Skistar AB.

    Tourist housing in the mountains are often located in remote locations and that influences the functions to be compared with regular apartments, houses etc. and its functions. Natural material as wood and stone are reflected in the buildings.

  • 25.
    Andersson, Robert
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Gergesa, Igor
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Analys av kommunikation under projektering i partnering2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: During the planning phase of a construction there are many participants

    involved; architects, building contractors, constructors, developers and so on.

    Communication problems occur between these participants and may lead to wrong

    planning and high costs. Partnering focuses on relationship-building, transparency and

    trust, which in theory should reduce the problems for a project. The objective of this

    study is to analyse the communication in the planning phase to identify how

    communication problems can be prevented in a partnering.

    Method: To achieve the objective, literature studies and interviews have been

    selected as methods. The interviewees were selected from two partnering projects that

    Skanska was involved in.

    Findings: Results show that partnering reduces communication problems and create a

    greater involvement and commitment of the project planners. However, some problem

    still exists such as the use of project portals, choice of communication channels,

    coordination and information transfer on a formal and informal level.

    To prevent these problems, literature studies and interviewees contributed a few

    examples; a detailed meeting agenda, add comments on the blueprints, production

    personnel should participate in planning meetings and economic incentives. The

    interviewees have felt that partnering has worked well which has produced good

    results during the project planning.

    Implications: To create an effective planning group and remove the participants own

    interest, partnering should be applied. Planners should work with one project at a time

    and should be located with each other to benefit the work and communication at

    formal and informal level. Planners should work in a project portal that they are

    experienced and comfortable with.

    Limitations: This thesis will only analyze the planning stage. The two analyzed

    partnering projects were under planning stage during the thesis, which made it

    impossible to continue the research on the handover phase from planning to

    production. The interviewees have been limited to architects, contractors,

    constructors, developers, electrical and plumbing planners.

    Keywords: Planning stage, communication, partnering, communication problems

  • 26.
    Andersson, Ronny
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Björk, Bo-Christer
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ekholm, Anders
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Johansson, Peter
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    FoU-program för ICT i bygg- och fastighetssektorn i Finland, Danmark och Norge2008Report (Other academic)
  • 27.
    Andersson, Simon
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Sundén, Olof
    Användandet av Level of Development vid projektering: En kvalitativ studie avseende effektivisering av projekteringsprocessen för konstruktörer2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syfte: Att använda byggnadsinformationsmodeller inom byggbranschen har blivit ett allt större tillvägagångssätt för att effektivt projektera inom bland annat konstruktion, arkitektur och installation. Detta tillvägagångssätt har genererat att aktörer inom samma projekt behöver kommunicera mellan varandra angående innehållet av samtligas egna byggnadsinformationsmodeller. Konstruktörer som arbetar med prefabricerad betong får bland annat underlag levererat från arkitekter, installationskonsulter och andra konstruktörer. Studien avsåg att med hjälp av Level of Development förbättra hur projekteringsunderlagen ser ut som levereras till konstruktörer, som arbetar med prefabricerad betong. Studien framlyfter konsekvenserna av underlag som innehåller för lite information för konstruktörers projektering.

    Metod: Studien är genomförd med kvalitativ data. Genom en litteraturstudie lades grunden till problembeskrivningen och mer ingående hur man kan arbeta med Level of Development. Studien är baserad på sju stycken kvalitativa semi-strukturerade intervjuer av personer som har projektering inom konstruktion som yrke. Intervjuerna gjordes i samarbete med Structor Värmland AB, som inriktar sig på prefabricerad betong. Med hjälp av dessa kvalitativa intervjuer kunde erhållen data analyseras från studiens tre frågeställningar.

    Resultat: Resultatet av studien visar att nödvändig information brister när medkonsulter levererar projekteringsunderlag till konstruktörer. Delvis genom att många medkonsulter inte har implementerat BIM och projekterar i 2D samt att underlagen kan innehålla för lite eller för mycket information. Mindre detaljerade underlag tenderar till fler ändringar i konstruktörers projektering, medan överdetaljerade underlag generar onödigt mycket grafik som konstruktörer inte har användning av. Onödig grafik resulterar att modellerna blir långsammare att arbeta i. Utifrån insamlad data återförs rapporten med rekommendationer för att effektivisera konstruktörers projektering. Rekommendationerna innehåller bland annat att konstruktörer bör skaffa sig utbildning inom begreppen BIM och LOD för att kunna ställa krav på hur tillhandahållna underlag från medprojektörer bör se ut.

    Konsekvenser: En standardisering av levererade projekteringsunderlag till konstruktörer bidrar till en mer effektiv projekteringsprocess. Effektiviseringen bidrar till mindre samordning, konflikter i projekteringen samt sparar dyrbar tid. Dock så är Level of Development ett relativt okänt begrepp som har flera olika tolkningar. För att göra projekteringsprocessen mer effektiv behöver konstruktörer ta del av mer information gällande BIM och Level of Development.

    Begränsningar: Rapporten begränsas till projektering med inriktning på prefabricerade betongkonstruktioner. Studien samlar inte in data från medkonsulter, beställare, entreprenörer som arbetar med konstruktörer.

  • 28.
    Andreasson, Elin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Sparring, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    MILJÖCERTIFIERINGENS PÅVERKAN PÅ ARBETSGÅNG I STOMBYGGNAD OCH STOMKOMPLETTERING2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Environmental certifications strengthens a contractors environmental profileand means sustainability in regards to the environment. It is of interest to establishwhich obstacles and differences in workflow that environmental certifications cancause and thereby imply challenges in construction. The purpose with this paper is toexamine what impact the environmental certification Miljöbyggnad Silver has on acontractors work in the construction stage with focus on structure and frameworksupplement.

    Method: To reach the purpose of this paper empirical data have been collected throughinterviews, private documents, and observations of building construction. This researchemploys a qualitative method to get a comprehensive understanding of Miljöbyggnadin construction, where respondents with different occupations and extents of experiencewith Miljöbyggnad have been chosen for interviews.

    Findings: This research shows that the indicators in Miljöbyggnad that mainly have animpact on construction is Moisture safety, Documentation of building material andPhasing-out of harmful substances. The research shows that the biggest differencebetween conventional construction and construction with Miljöbyggnad is the amountof documentation that is needed. Construction with Miljöbyggnad also differsdepending on what occupation one has.

    Implications: The conclusion of this research is that there are no great obstacles withMiljöbyggnad Silver in construction. Indicators from Miljöbyggnad impactsconstruction with additional obligations for site management and does not implicate adifference in already established ones. Recommendations following this research is toinvolve and encourage Miljöbyggnad for everyone involved in construction.

    Limitations: This research is limited to big contractors and the environmentalcertification Miljöbyggnad Silver where focus have been structure and frameworksupplement. Through analyses of indicators and interviews the authors have concludedthat it is structure and framework supplement where impact following Miljöbyggnadexists. The result of this research and its conclusions are considered to apply with othercontractors with similar routines and work flow.

  • 29.
    Andregård, Nellie
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Johansson, Hanna
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    MINSKAT MATERIALSVINN PÅ BYGGARBETSPLATSEN INOM SMÅHUSTILLVERKNING2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Material wastage is a widespread problem in the building sector that affects both the economic and environmental aspects negative. Further research within industrial small house manufacturing is required to develop an information system and investigate the amount of discarded material. Several small house companies use external building contractors which makes it difficult to reduce the amount of waste because the contractors are not economically affected by the amount of material left over. In the case studied there are no guidelines on how the amount of material waste should be fed back and how the small house manufacture should use that kind of experience feedback. There has to be an improved communication between the parties in order to systematically document where the material waste occur and what it depends on.The aim of the essay is to give concrete suggestions on how the experience feedback can be formed between small house companies and building contractors, and how the small house company can adjust their operation method in order to contribute to a reduced amount of material waste.

    Method: The paper is a qualitative study with litterateur, observation and interview study as applied examinations methods. The observation investigated the company’s working methods. In the literature study, scientific articles within waste, knowledge management and Building Information Modelling (BIM), where studied. These theories where later compared with the interviews, which were designed with a low degree of structuring and higher degree of standardization.

    Findings: The study presents that poor quality of the material is the most common experienced sources of material waste. Concrete suggestions on how the experience feedback between small house manufacturer and building contractors can be formed is presented, where photo documentation and weighing of the material are two of the alternatives. That information can in a later stage be used to optimize the company’s additional percentage on the material used to prevent the material from running out of the construction site.

    Implications: The paper results there is a developed system for how deviations for missing material is managed and that there also is a need to introduce it for residual material. Inadequate quality of the material is identified as the largest source of material waste, even calculation errors from quantity take-off are common because it is carried out manually. The additional percentage on material orders is not based on documentation and has potential to be optimized. One way to reduce the amount of material waste is to introduce a wider use of BIM in order to make clash control and quantity take-off.

    Limitations: The thesis is a case study, but the results can be applied in other small house companies with a similar working procedure. The study is delimited from organizational structures with internal builders, which means that the generalization of the results is decreased. The work is also limited from which incentives that is required to motivate the building contractors to use the suggested methods to return the information.

    Keywords: Waste, Construction, Knowledge Management, Quantity take-off and BIM.

  • 30.
    Aries, Myriam
    et al.
    Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    Aarts, Mariëlle
    Department of the Built Environment, Eindhoven University of Technology, Eindhoven, Netherlands.
    van Hoof, Joost
    Centre for Healthcare and Technology, Fontys University of Applied Sciences, Eindhoven, Netherlands.
    Daylight and health: A review of the evidence and consequences for the built environment2015In: Lighting Research and Technology, ISSN 1477-1535, E-ISSN 1477-0938, Vol. 47, no 1, p. 16-27Article in journal (Refereed)
    Abstract [en]

    Daylight has been associated with multiple health advantages. Some of these claims are associations, hypotheses or beliefs. This review presents an overview of a scientific literature search on the proven effects of daylight exposure on human health. Studies were identified with a search strategy across two main databases. Additionally, a search was performed based on specific health effects. The results are diverse and either physiological or psychological. A rather limited statistically significant and well-documented scientific proof for the association between daylight and its potential health consequences was found. However, the search based on specific health terms made it possible to create a first subdivision of associations with daylight, leading to the first practical implementations for building design.

  • 31.
    Aries, Myriam
    et al.
    Building Physics and Systems, Netherlands Organisation for Applied Scientific Research TNO, Delft, Netherlands.
    Bluyssen, P. M.
    Building Physics and Systems, Netherlands Organisation for Applied Scientific Research TNO, Delft, Netherlands.
    Climate change consequences for the indoor environment2009In: Heron, ISSN 0046-7316, E-ISSN 1574-4078, Vol. 54, no 1, p. 49-70Article in journal (Refereed)
    Abstract [en]

    Scientists warn us about climate change and its effects on the outdoor environment. These effects can have significant consequences for the indoor environment, also in the Netherlands. Climate changes will affect different aspects of the indoor environment as well as the stakeholders of that indoor environment. Buildings will require less heating in the winter and more cooling in the summer, resulting in an increase use of air conditioning systems. Increasing relative humidity indoors and rising moisture from the ground will cause significantly more mould problems resulting in further health risks. Additionally, effects on lighting and acoustical quality, but also several psycho-social effects seem likely to occur. It is concluded that possible adaptations, whether performed at the source of climate change effects, the building or by involving people, can only be executed properly when the possible effects of climate changes on occupant wishes and needs as well as the interactions of these occupants with their environment are well understood.

  • 32.
    Aries, Myriam
    et al.
    TNO Built Environment and Geosciences, Delft, Netherlands.
    Boele, L. C. L.
    TNO Defense, Security and Safety, Rijswijk, Netherlands.
    Tuinman, I. L.
    TNO Defense, Security and Safety, Rijswijk, Netherlands.
    V D Bergh, I.
    TNO Built Environment and Geosciences, Delft, Netherlands.
    Moons, A. M. M.
    TNO Built Environment and Geosciences, Delft, Netherlands.
    De Jong, P.
    TNO Built Environment and Geosciences, Delft, Netherlands.
    Kooter, I. M.
    TNO Built Environment and Geosciences, Delft, Netherlands.
    Particulate matter and the health effects on human living lung cells2009In: 9th International Conference and Exhibition - Healthy Buildings 2009, HB 2009, 2009Conference paper (Refereed)
    Abstract [en]

    Predominant sources of personal particulate matter exposure are residential indoor and road-traffic or soil-borne outdoor respirable particles. Candles are an important source of indoor particulate matter. Therefore a pilot study was conducted in a specially built research facility for a fixed period of time. Fine and ultrafine particle concentrations were continuously sampled and the likelihood for potential health effects was studied using the CULTEX® system in which human lung cells were directly exposed to air samples. A high concentration of ultrafine particles was registered during the candle burning; a control condition recorded a much lower concentration and larger particle diameters. First results indicate that unhealthy situations due to candle burning in the indoor environment are very well possible.

  • 33.
    Aries, Myriam
    et al.
    Institute for Research in Construction, National Research Council, Ottawa, Canada.
    Newsham, Guy R.
    Institute for Research in Construction, National Research Council, Ottawa, Canada.
    Effect of daylight saving time on lighting energy use: A literature review2008In: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 36, no 6, p. 1858-1866Article, review/survey (Refereed)
    Abstract [en]

    The principal reason for introducing (and extending) daylight saving time (DST) was, and still is, projected energy savings, particularly for electric lighting. This paper presents a literature review concerning the effects of DST on energy use. Simple estimates suggest a reduction in national electricity use of around 0.5%, as a result of residential lighting reduction. Several studies have demonstrated effects of this size based on more complex simulations or on measured data. However, there are just as many studies that suggest no effect, and some studies suggest overall energy penalties, particularly if gasoline consumption is accounted for. There is general consensus that DST does contribute to an evening reduction in peak demand for electricity, though this may be offset by an increase in the morning. Nevertheless, the basic patterns of energy use, and the energy efficiency of buildings and equipment have changed since many of these studies were conducted. Therefore, we recommend that future energy policy decisions regarding changes to DST be preceded by high-quality research based on detailed analysis of prevailing energy use, and behaviours and systems that affect energy use. This would be timely, given the extension to DST underway in North America in 2007.

  • 34.
    Aries, Myriam
    et al.
    Eindhoven University of Technology, Department Built Environment.
    Rosemann, Alexander
    Eindhoven University of Technology, Department Built Environment.
    Westerhout, Wies
    Eindhoven University of Technology, Department Built Environment.
    Hordijk, Truus
    Delft University of Technology, Faculty of Architecture and the Built Environment.
    Visser, Rienk
    Rienk Visser Lichtontwerp en - Advies.
    Pacey, Betty Lou
    BL Innovative Lighting - Vancouver.
    Energy efficient facade lighting: highlighting facade structure2014In: Spool, ISSN 2215-0900, Vol. 1, no 2Article in journal (Refereed)
    Abstract [en]

    The project set out to proof that a conventional optical fibre lighting system for highlighting the structure of a façade can be operated more energy-efficiently through the substitution of the projector using a metal halide reflector lamp by a laser. This is investigated by looking into the photometric assessment of such systems as well as the electric power draw during operation. In preparation for a potential exterior demonstration installation, an additional focal point of the research was the design and testing of a weatherproof case that provides protection to the laser and the ballast. The final stage brought the different aspects of the research together and resulted in a temporary experimental setup (pilot installation) in order to showcase the validity of this novel approach.

  • 35.
    Aries, Myriam
    et al.
    Eindhoven University of Technology, Netherlands.
    Veitch, Jennifer A.
    National Research Council Canada, Institute for Research in Construction, Ottawa, Canada.
    Newsham, Guy R.
    National Research Council Canada, Institute for Research in Construction, Ottawa, Canada.
    Windows, view, and office characteristics predict physical and psychological discomfort2010In: Journal of Environmental Psychology, ISSN 0272-4944, E-ISSN 1522-9610, Vol. 30, no 4, p. 533-541Article in journal (Refereed)
    Abstract [en]

    Office employees spend a lot of time inside buildings, where the physical conditions influence their well-being and indirectly influence their employers' business performance. With data from a field study conducted in the Netherlands in April to May 2003, we used path analysis to further elucidate the relationship between personal (gender and seasonality of mood shifts), building (view type, view quality, window distance, and social density), and perceived environmental conditions (light quality, and office impression) and physical and psychological discomfort, sleep quality, and environmental utility. The results show that window views, which that are rated as being more attractive, are beneficial to building occupants by reducing discomfort. However, being close to a window and rating the lighting as being of lower quality can result in thermal and glare problems (environmental utility). Reduced discomfort at work can improve sleep quality, indicating that physical conditions at work influence home life.

  • 36.
    Arvidsson, Jessica
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Tillgänglighet i flerbostadshus från 1990 till nutid: Analyser av projekt i Uddevalla2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The built environment should be accessible for everyone. A residence shall be functional without creating a handicap for people who have a disability from birth, caused by an accident or of old age. A residence that is accessible creates equal conditions for everyone.

    In this report the accessibility of newly built blocks of flats in Uddevalla city from 1990 until today are interpreted. One project that is yet to be built is interpreted and compared with the already existing projects. The apartments of seven projects have been analyzed according to today’s regulations of accessibility. The Swedish politics regarding disablement and a historical overview of the building regulations from the 1980’s till 2010 give the foundation of the analyses of the projects. One type-apartment in each project has been furnished to be able to interpret how the accessibility demands are fulfilled.

    In the study the conditions of the seven projects are different. Two of the projects, that have been built 8 years apart, are two-story apartment blocks. These projects separate from the other projects that are four-seven story apartment block buildings. One of the buildings has the concept of being able to keep living in and using the apartment when ageing. The four project that remains are all block of flats with 26-45 apartments each, with the difference of when they were built, or is going to be built.

    The result of how accessible the different apartments are in each project depends on how well thought-out the floor plan is. The oldest project is comparable to and even better than two of the younger projects when it comes to accessibility. A neutral hallway or accessing a bedroom from the living room is a recurring design that is found in five of the seven projects. In three of the projects a failing design or different building regulations causes the bathroom to fail the accessibility demands. The recurring center- to- center distance between the toilet and washbasin in each projects determines if the accessibility demands are achieved. When a kitchen, dining area and living room are in an open connection with each other they create practicability, but depending on the measurements of each space the accessibility demands can be fulfilled or shattered by collisions, created when furnishing.

  • 37.
    Axelsson, Johan
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Göransson, Nicklas
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Funktionsentreprenad för beläggning och vägmarkering2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    This report is written in cooperation with the Swedish National Road Administration South-Eastern Region in Jönköping. The report is a result of the evaluation to give an answer to the question about how well the function contract has been carried out on the E4 in Östergötlands and Jönköpings län. The evaluation is divided in two hard parameters and one soft.

    The Swedish National Road Administration is interested in knowing how the standard on the road have been changed during the functions period, which is the reason why the first hard parameter is considering road standard. To evaluate the standard there have been a comparison of values from measures taken every year on the current road stretch. The second hard parameter considers economy. The Swedish National Road Administration wants to know if there are any economic reasons to continue this sort of purchasing, which only contains requirements of functions. The third and last parameter contains experiences from each part of the function contract and what each part thinks about this kind of contract.

    The result of the research dealing road standard indicates a clear increase of standard ensuring roughness and road markings. In an economic point of view the function contract shows many benefits, one of them is that the Swedish National Road Administration South-Eastern Region has paid a smaller amount of money compared to the calculated cost of purchase the same measures in a traditional contract. Based on the answers from the interviews the overall opinion of the function contract is very good, from each part of the function contract.

    The final conclusion is that this kind of contract suits very well for this sort of project and that the Swedish National Road Administration South-Eastern Region should use this kind of contract for the E4 also in the future.

  • 38.
    Backström, Martin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Wikström, Ludvig
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Effektivisering av ekologisk dagvattenhantering i stadsmiljö2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In the city of Jönköping problems with the irregular flow, erosions and transport of sediment materials are recurring in the brook Strömsbergsbäcken. The problems is somewhat caused by an increased flow of storm water in the brook, which leads to high flow peaks in some parts of the brook since the original furrow is not dimensioned for the increased amount of water. The purpose of this project work is to make ecological drainage management in urban environments with a high amount of storm water discharge more efficient. The objective with the report is to create valuable material of how to accomplish ecological drainage management in urban areas and that the report will be useful for future similar connections. To fulfill the objective, the following three questions have been designed as a significant part of the final project report:

    • How can the load on the general drainage system be reduced?
    • How can the pollution effects of storm water runoff in urban areas be reduced?
    • Which treatments are appropriate to enhance the ecological storm water management in Strömsbergsbäcken ?

    The methods that have been used to solve these questions are document- and literature studies, and also a case study.The thesis results shows that the storm water flows from four of the nine areas that has its outlets in Strömsbergsbäcken, need to be treated through some kind of a solution or method that delays the water flow. The treatment could be performed in the area, before the storm water reaches the storm water network, which leads to Strömsbergsbäcken. The storm water flows can also be reduced by treatments adjacent to the outlets in the brook, where the largest flow peaks occurs. For example an essential solution to decrease the flows in Strömsbergsbäcken is to reconstruct the old dam located near one of the outlets into a basin, which will delay the stormwater flows.

  • 39.
    Behr Andersson, Filip
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Cimen, Askin
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Hänninen, Toni
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Miljonprogrammets möjligheter: Energieffektivisering av Öxnehaga, Jönköping2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 40.
    Berg Nilsson, Marcus
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Landin, Isabelle
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Development of Ecolodge treehouses: - A field study in Colombia2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this study is to gather, compile and increase of knowledgeabout development of Ecolodge treehouses in tropical climates. It maps how to developa treehouse lodging sustainably in the areas of building technology, installations anddesign.

    Method: This study's methodology consists of planned observations and literaturestudies. The planned observations were performed on two treehouse lodges in thetropical climates of Colombia. The literature studies contain the areas: Ecolodge,Building technology, Installations and Design. The literature is primary collected fromscientific databases, such as Science Direct. When the desired literature was not found,other literature has been used.

    Findings: The standard on the observed treehouse lodges were low, yet fulfilledseveral aspects of the International Ecolodge Guidelines. The guidelines are outdatedand not profound enough to distinguish sustainable lodging. The literature studyindicates that there are sustainable options for the development of treehouse lodgingavailable. However, the natural conditions of the specific case need to be examined toensure that the right choices were made. A summary of the results are found inchapter 5.2 and 5.3.

    Implications: The concept of Ecolodge and its International Guidelines are notsufficiently enough and can easily mislead various stakeholders. It should be up to dateand structured more thoroughly to avoid greenwashing. Highlighting flaws is importantto make sure that the development is lead in the right direction and the study also showsthat there are sustainable options available. The range of scientific studies within thearea is currently very small. Further studies can be done in several directions which inturn can contribute to increased knowledge in the field.

    Limitations: The case study is performed on two cases and unfortunately, they did notgive answers to all the studied aspects. Therefore, comparisons with the literature studywere not possible in a desirable way in these fields. It is difficult to determine how thegeographical location of the cases affects the results, and it is not possible to know ifthe results would have been the same with cases from other parts of the world.

    Keywords: treehouse, building in trees, Ecotourism, Ecolodge, sustainable lodging,Ecolodge guidelines, rainforest, sustainable installations, photovoltaic solar system,wastewater treatment.

  • 41.
    Bergkvist, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Cyklisters situation på 2+1-vägar2006Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [en]

    In this report the situation for cyclists on 2+1-roads is analysed and studied. These

    roads are often the old 13-meter roads that have been changed into 2+1 to increase

    the security. Two road sections outside Motala in Sweden has been deep studied

    and analysed. The different parts in the planning process show how the progress

    goes. To begin with the change should be within the old 13 meters but after the

    pilot study was circulated for comments the result became a broadening to 13,75

    and 14,00 meters. These new broadth gave a wider roadside and a safer situation

    for cyclists.

    The reconstruction outside Motala is an unusual solution since broadthening of

    the road area rarely is done. The biggest reason to this broadthening is probably

    the cycle races Vätternrundan and Tjejvättern and all the practice that takes place

    before these events. The township of Motala wants to promote cycling in their

    municipality. This whish where probably an important factor during the

    commenting period.

    The rapport also analyses different control documents used in the planning

    process. These are VGU (Vägar och Gator Utformning) and Inriktningsdokument

    för 13-metersvägar inom Vägverket Region Sydöst.

  • 42.
    Bergviken, Christian
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Johansson, Jakob
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Prefabricerade nära nollenergihus: Fallstudie om energieffektivisering av konventionella byggnader2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 43.
    Berner, Isabella
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Nilsson, Johanna
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    ARBETSLEDARROLLEN - UR ARBETSLEDARNAS PERSPEKTIV2012Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This bachelor thesis is intended to point out differences within the supervisors’ role and contribute in making the role more attractive. At present the information about how the supervisors’ perspective varies on the supervisors’ role and the introduction to it depending on work experience and education is unknown. Further it was investigated why the supervisors’ role is seen as an entrance to the building industry and how to develop the role to encourage the supervisors to stay longer within it.

    In the collection of data we have been interviewing supervisors and studying literature. In total we have interviewed 14 supervisors in the region of Jönköping and the result of the literature study has subsequently been used to substantiate the outcome of the interviews. The selection of interviewees was partly based on the supervisors’ work experience and educational level but consideration regarding sex and age was also taken.

    The result showed that the supervisors experience their role as a diverse, social and coordinating role and the main work involves staking, preparation for upcoming activities, answering questions and solving problems that occur. Furthermore it appeared that the supervisors’ role varies in work tasks as well as what is considered positive, negative and difficult. Moreover varies the role in the vision of the leadership and the experience of response from co-workers. Although it also appeared that the variations may not always depend on work experience and education level but also on the supervisors’ personality. The supervisors, who have experience from being craftsmen, were considered to have several advantages, for example concerning practical understanding, detecting inaccuracies and delays and that they more easily get accepted by the co-workers.

    The result indicated that the supervisors are experiencing their first months in the role differently depending on work experience and educational level. Most of them also believe that there are opportunities for improvement concerning the introduction period. The supervisors who have experience from being craftsmen felt prepared for the role to a greater extent than those supervisors who have an engineering degree. It were primarily those with an engineering degree who feel the need of a mentor but the majority of the supervisors reckons that if mentorship is to be used the mentor should be working at the same place as the supervisor.

    In addition, it was shown that the supervisors enjoy their role but the supervisors who have an engineering degree see the role as more attractive than those with a background as craftsmen. Possible enhancements mentioned were improved wage development, increasingly greater responsibility, better economic planning and more variation in the types of projects and tasks.

    The conclusions drawn were that the supervisors’ role varies in the aspect of the role itself and of the experience from the introduction period as well as that there are certain requests for mentorship and that there are opportunities to introduce changes which may make sure that the supervisors remain longer in their role.

  • 44.
    Berntsson, Amanda
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Lager, Sandra
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Energieffektiviseringsstödet till kommuner: Utfall & framtidsutsikter2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Environmental and climate issues are constantly on the agenda. At the climatechange conference in Paris, it was decided that the global average temperature shouldnot increase more than 2°C. This means that the energy consumption must be reduced.With the EU's 2020 targets as a basis, national goals have been set, which means thatSweden will achieve a 20 %increase of the energy efficiency by 2020. The public sectorshould act as a role model, therefore the Swedish Energy Agency was handing out asubsidy between 2010 and 2014 as a contribution to local governments for improvingenergy efficiency in its own organization. The goal of this study is to analyze how theenergy efficiency subsidy has helped municipalities in their work to reduce the energyuse in its real estate, and what remains to do to reach the 2020 target.Method: To reach the goal both a qualitative and quantitative study has been made.The data collection methods was interviews, a document analysis and a literaturereview. A case study has been made together with Herrljunga municipality.Findings: The energy efficiency subsidy has several positive effects. The energy usehas been reduced by 8% between 2009 and 2014 for the whole country and the casestudy object has been reduced by 12%. This can be refer to that the municipality hasprioritized the issue of energy higher. Other positive effects include improved indoorclimate and user behavior and that they have better control over energy consumption.The energy work is proceeding in many municipalities after the subsidy, the work willbe financed with own funds. To achieve the goal they should continue the work thatthey began but also complete it with other actions. This may be, for example: replaceheating- and ventilation systems, train the user group and renovate energy smart.Implications: The study shows that the subsidy has provided a push to energy issuesin the municipalities, the subsidy has resulted in a decreased energy use. After thesubsidy stopped many municipalities continued to work when they have seen thebenefits. The study also shows that it is possible for Sweden's municipalities to achievea reduction of energy use by 20% by 2020 in their real estates. To reach this Swedishmunicipalities needs to continue to work actively with energy issues and make newenergy efficiency measures.Limitations: This study has been limited to the municipality's own real estates. Theresult of the study is not valid for all the municipalities that received the subsidy asindependent but it provides an overview of the outcome of the municipalities together. Every municipality can learn from this report.

  • 45.
    Bezdrob, Samir
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Dahl, Arvid
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Den ekonomiska lönsamheten för solvärme i Sverige2010Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The sun is an endless energy source and the heat it produces can be used to heatup our homes. This technology is relatively old and was introduced in the late70-s. There are two kinds of solar collectors that are most frequently used todayand these are plain solar collectors and vacuum solar collectors. The plain solarcollectors are the once that are used the most but the vacuum solar collectorshave increased more as a percentage the last couple of years.The biggest question asked regarding an investment in solar heating is if theplant is economically profitable. This question has no direct answer because itis dependent on a couple of prerequisites. These prerequisites are for examplewhich the existing heating system is used for the house, the accumulator tankbeing used and the houses orientation to mention a few.An investment in solar heating can be considered if the existing heating systemis either oil heating or direct electrical heating. The ground for this is that theprices for these fuels have increased a great deal in the last couple of years andbecause of that solar heating can be competitive. On the contrary, if you havean existing system that is either wood heating, pellets or long-distance heatingthe investment in solar collectors would not in most cases be profitable. Otherreasons could be current here like the environmental winnings. The sun is aclean and “free” heating method and this has been the reason why some peoplehave decided to invest in it. The energy that is produced by the solar collectorsis free and the economical calculation is based on the investment cost, whichoften is expensive, spread over the life-span of the system.There have been state funds to apply for over the years. These have caused theinvestment cost to sink for the plants ant the interest to increase. There are acouple of state funds to apply for and these can not be combined. The one mostcommonly used is SFS 2000:287 – förordning om statligt bidrag tillinvesteringar I solvärme that was introduced in the year 2000 and concernedsolar heating. This is a contribution that is bound to the yearly heat exchangethe plant can produce and it can, at most, give 7 500 Swedish crowns in funds.This regulation was replaced in the year 2008 by the regulation SFS 2008:1247– Förordning om stöd för investeringar I solvärme that is a similar edict wherethe difference lies in the calculation process for the amount of the funds that aregiven for the plant. As in the earlier regulation the maximum amount of thecontribution is 7 500 Swedish crowns per household.A new state fund contribution is proposed where the changes are to increase thecontribution to 3,90 kr per kWh with a maximum amount of 12 000 kr perhouse. The contribution will not include bigger projects and will extend over aperiod of 4 years with a total budget of 160 000 000 kr.

  • 46.
    Billing, Rasmus
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Ett vätternära åldrande2007Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
    Abstract [sv]

    Detta examensarbetes syfte är att upprätta ett byggnadsförslag för tre flerbostadshus på en strandnära tomt i Vättersnäs i Jönköping. Rapporten omfattar utredning, skisser, färdiga systemhandlingar samt presentationsmaterial.

    Bakgrund: Uppslaget till examensarbetet kom efter samtal med Benny Hunemark på kommunens plankontor. Där jag fick information om att en person vid namn Leif Larsson startat en ”intresseförening” med mål att genomdriva byggnation av +55 boende på en strandnära tomt i Vättersnäs. Kommunen har här lagt en detaljplan som förespråkar 3 stycken punkthus i 3 våningar vardera. Det fanns från kommunens sida intresse att utreda alternativet med +55 boende i delar av projektet eftersom behovet av boendeformen förväntas öka inom kommunen. Genomförande: Efter att ha studerat flera redan byggda +55 boenden och där noterat fördelar och nackdelar i dessa projekt och efter att ha tagit del av det skriftliga material som finns utgivet om denna problemställning började jag ”ideskissa” på ett planförslag. Därefter har jag i samråd med och efter invändningar av min kontaktperson på kommunen Benny Hunemark, ovan nämnda Leif Larson, Kaj Granath handledare på skolan, arkitekterna SAR/MSA Tomas Hansen och SAR/MSA Joachim Billing omarbetat förslaget i flera etapper för att slutligen nå det resultat som här presenteras och kommer överlämnas till beställaren.

    Resultat: Det slutliga förslaget ”Ett Vätternära åldrande” är genomgående projekterat efter de förhöjda funktionsmått som förespråkas i kommunens nyutgivna publikation ”Bättre för alla”. Detta med anledning av att alla lägenheter i projektet skall vara möjliga att bo kvar i med hög boendekomfort, trots den nedsatta rörelse och orienteringsförmåga som kan komma med stigande ålder. Förslaget förespråkar dock i sitt grundutförande bara att det nodligaste huset speciellt avsätts för boendeformen +55 boende.

    Diskussion: Förslaget har efter färdigställande jämförts med kommunens upprättade illustrationskarta över området och diskuterats med de under projektet inblandade parterna.

  • 47.
    Björk, Evelina
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Fast, Kim
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Effektivisering av energianvändningen i en förskola2011Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This rapport contains an examination of the energy consumption of a kindergarten, which areas that have the largest impact on the energy consumption and what can be done to reduce those areas in ways that are relatively easy and profitable. It is also analyzed if it is possible to reduce the energy consumption from today’s consumption to a consumption that fulfils the demands placed on low energy houses by FEBY.

    The focus has been on reducing the energy consumption of the areas ventilation, heating system and hot water system, since those seemed to be the easiest ones to affect and since the building is quite recently built.

    There are different kinds of ventilation systems, at the moment the building have a CAV-system, which means that the ventilation is too high during large parts of the day. There are different ways to manage the ventilation system, for example presence detection, humidity sensors, CO2 sensors, temperature sensors and season adjustment. Many of those are in the end dependent on CO2 sensors to guarantee a good indoor climate, therefore the focus have been placed on this system.  

    The building is heated through district heating which is relatively easy to connect to a couple of sun panels to contribute to the heating system and hot water system. There are different ways of connecting district heating with solar panels and those are described, as well as the cost and the repayment time. A comparison with a building with an electric heating system has been made as well.

    It is important to get solutions that are profitable, that the repayment time isn’t too long. Solar cells and wind turbines are examined as well, but the repayment time for solar cells are too long at the moment. The repayment time for solar cells varies between 42 - 75 years, while the expected lifetime is 25 years. Concerning ventilation, a reduced ventilation of 10, 20, 30, 40 and 50 % have been examined. With only reduced ventilation the demands on low energy houses could not be matched, but it was possible in two cases with the use of solar panels. The usage of a wind turbine meant that the ventilation had to be reduced even less to match the demands on low energy houses. The repayment times for the solar panels and the wind turbine are both around 14 years. 

  • 48.
    Blockgren, Håkan
    Jönköping University, School of Engineering, JTH, Civil Engineering.
    Illustrationsplaneförslag för Trönningebjär, Varberg2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    When the purpose is to create an illustration plan for a new neighbourhood there arelots of things to think about. In this report follows a description of the three differentplan modells SCAFT/TRÅD, garden city and ekological planning. SCAFT is aplanning model that were used in the 1970s. It contains proposals how to make thetraffic enviorment safer. TRÅD replaced SCAFT in 1982 and it contains also adviceshow to make the traffic enviorment safer. Garden city was an expression witch wasinvented in the late 1900th century by a man named Howard Ebenezer. This way toplan a city is about creating buildings in a reasonable size where every house has itsown garden. There is beyound this several other qualitys specific for garden citys.When it comes to ecological planning the lack of obvious choises of inspirationmodels is overwhelming. Many citys applys part of the ecological thinking but fewuses the whole concept.The territory that this report is about is geographicly oriented in the northeast ofVarberg in the outskirts of a village called Trönninge. The territory has earlier beanused for agriculture purposes. During the process of making the illustration planmodels over this property the topografic condition has been payed attention to. Allthree of the illustration planpreposals has been gone througt seperatly to acive thecaracter of its inspiration model. The area of a nursury school with a landrecomondation of 5000 m² exists in all three proposals.During the planning accordig to SCAFT/TRÅD adaptation of its traffic planningsolution has been used as far as it is possible. The final proposal contains a relativelyseparated plan where the different areas has its own caracter concerning buildingtypes. The illutsration plan proposal with inspiration collected from the garden citycontains a much more mixt building planning but it contains a more pronouncedquarter fealing than the other proposals. In the proposal inspierd by ecologicalplanning the point of the compass determined the location of the buildings. The bestlocation to receive the most sun as possible is east-west whith one of the buildigslongest sides facing the south.To be abel to understand the illusration plan proposals better they nead to bereachable when the description is overviewd. The area has a couple of geographicdeviation in form of two cliffs wich create intresting conditions and has been keeptintact in all three of the illustation plan proposals.

  • 49.
    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.

  • 50.
    Bluyssen, Philomena M.
    et al.
    TNO Built Environment and Geosciences, Delft, Netherlands.
    Aries, Myriam
    TNO Built Environment and Geosciences, Delft, Netherlands.
    van Dommelen, Paula
    TNO Quality of life, Leiden, Netherlands.
    Comfort of workers in office buildings: The European HOPE project2011In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 46, no 1, p. 280-288Article in journal (Refereed)
    Abstract [en]

    Previous studies have shown that building, social and personal factors can influence one's perceived health and comfort. The aim of the underlying study was to get a better understanding of the relationships between these factors and perceived comfort. Self-administered questionnaires from 5732 respondents in 59 office buildings and building-specific data from the European Health Optimisation Protocol for Energy-efficient buildings (HOPE) study were used. Principal Component Analysis (PCA), reliability analyses, and linear regression analysis were performed. The outcome showed that perceived comfort is strongly influenced by several personal, social and building factors and that their relationships are complex. Results showed that perceived comfort is much more than the average of perceived indoor air quality, noise, lighting and thermal comfort responses. Perceived comfort is a phenomenon that deserves more research.

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