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Jalilzadehazhari, E., Vadiee, A. & Johansson, P. (2019). Achieving a trade-off construction solution using BIM, an optimization algorithm, and a multi-criteria decision-making method. Buildings, 9(4), 1-14, Article ID 81.
Open this publication in new window or tab >>Achieving a trade-off construction solution using BIM, an optimization algorithm, and a multi-criteria decision-making method
2019 (English)In: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 9, no 4, p. 1-14, article id 81Article in journal (Refereed) Published
Abstract [en]

The Energy Performance of Building Directive obligated all European countries to reduce the energy requirements of buildings while simultaneously improving indoor environment quality. Any such improvements not only enhance the health of the occupants and their productivity, but also provide further economic benefits at the national level. Accomplishing this task requires a method that allows building professionals to resolve conflicts between visual and thermal comfort, energy demands, and life-cycle costs. To overcome these conflicts, this study exploits the incorporation of building information modelling (BIM), the design of experiments as an optimization algorithm, and the analytical hierarchy process (AHP) into a multi-criteria decision-making method. Any such incorporation can (i) create constructive communication between building professionals, such as architects, engineers, and energy experts; (ii) allow the analysis of the performance of multiple construction solutions with respect to visual and thermal comfort, energy demand, and life-cycle costs; and (iii) help to select a trade-off solution, thereby making a suitable decision. Three types of energy-efficient windows, and five types of ground floors, roofs, and external wall constructions were considered as optimization variables. The incorporation of several methods allowed the analysis of the performance of 375 construction solutions based on a combination of optimization variables, and helped to select a trade-off solution. The results showed the strength of incorporation for analyzing big-data through the intelligent use of BIM and a simulation in the field of the built environment, energy, and costs. However, when applying AHP, the results are strongly contingent on pairwise comparisons. 

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
Analytical hierarchy process, Big-data, Building information modelling, Decision-making, Optimization, Trade-off design
National Category
Construction Management Energy Engineering
Identifiers
urn:nbn:se:hj:diva-44031 (URN)10.3390/buildings9040081 (DOI)000467496200006 ()2-s2.0-85065914154 (Scopus ID)GOA JTH 2019 (Local ID)GOA JTH 2019 (Archive number)GOA JTH 2019 (OAI)
Available from: 2019-06-04 Created: 2019-06-04 Last updated: 2019-06-04Bibliographically approved
Davoodi, A., Johansson, P., Laike, T. & Aries, M. (2019). Current use of lighting simulation tools in Sweden. In: : . Paper presented at 60th International Conference of Scandinavian Simulation Society, SIMS 2019, Västerås, Sweden, August 13-16, 2019. Linköping: Linköping University Electronic Press
Open this publication in new window or tab >>Current use of lighting simulation tools in Sweden
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents the findings of a web-based survey on the current use of lighting simulation tools in Sweden. The objective was to understand which lighting simulation tools are currently used in Sweden and to understand the design practitioners’ needs for future software development. The results showed that lighting simulation programs are widely used in Sweden. However, the respondents paid less attention to daylight than to artificial light. The respondents’ principal training methods were university courses and self-study. Interior illuminance values, glare indexes, and the daylight factor were the most commonly calculated simulation outputs. “Ease of use” and “accuracy” were identified as the most important factors in the use of the software, while “slowness of simulations process” causes the most dissatisfaction. Dialux was the most popular software program used.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2019
Keywords
Lighting Simulation tools, Simulation programs, Lighting design, Dialux
National Category
Architectural Engineering
Identifiers
urn:nbn:se:hj:diva-46673 (URN)
Conference
60th International Conference of Scandinavian Simulation Society, SIMS 2019, Västerås, Sweden, August 13-16, 2019
Available from: 2019-10-23 Created: 2019-10-23 Last updated: 2019-10-23
Jalilzadehazhari, E., Johansson, P., Johansson, J. & Mahapatra, K. (2019). Developing a decision-making framework for resolving conflicts when selecting windows and blinds. Architectural Engineering and Design Management, 15(5), 357-381
Open this publication in new window or tab >>Developing a decision-making framework for resolving conflicts when selecting windows and blinds
2019 (English)In: Architectural Engineering and Design Management, ISSN 1745-2007, E-ISSN 1752-7589, Vol. 15, no 5, p. 357-381Article in journal (Refereed) Published
Abstract [en]

Windows and blinds play a significant role in both shaping energy consumption and enhancing indoor comfort. But there are still difficulties with selecting windows and blinds due to the existence of potential conflicts between visual comfort, thermal comfort, energy consumption and life-cycle cost. A literature review was conducted with the purpose of developing a decision-making framework that resolves the conflicts, and allows selecting a window and blind design based on trade-off between visual comfort, thermal comfort, energy consumption and life-cycle cost. The decision-making framework was developed by integrating non-dominated sorting genetic algorithm-II as an optimization algorithm with analytical hierarchy process as a multi-criteria decision-making method. The optimization algorithm considers different window and blind design variables and analyses multiple designs, while the multi-criteria decision-making method ranks the optimization results and selects a trade-off design. An operating package enabled the decision-making framework to be automated. The operating package was obtained by coupling EnergyPlus as a simulation tool and modeFRONTIER as an integration platform. The decision-making framework was developed to select a trade-off window and blind design through intelligent use of simulation in analysing big-data in built environment, energy and cost sectors. Application of the framework ensures the minimum visual and thermal comfort thresholds with the lowest energy demand and cost. Architects and designers can use the framework during the design or renovation phase of residential and commercial buildings.

Place, publisher, year, edition, pages
Taylor & Francis, 2019
Keywords
analytical hierarchy process, big-data, framework design, multi-criteria decision-making, non-dominated genetic algorithm II, optimization, Trade-off design, Big data, Costs, Economic and social effects, Energy utilization, Genetic algorithms, Life cycle, Office buildings, Thermal comfort, Framework designs, Multi criteria decision making, Decision making
National Category
Environmental Analysis and Construction Information Technology Construction Management
Identifiers
urn:nbn:se:hj:diva-42052 (URN)10.1080/17452007.2018.1537235 (DOI)000482063700004 ()2-s2.0-85055576461 (Scopus ID)HOA JTH 2019 (Local ID)HOA JTH 2019 (Archive number)HOA JTH 2019 (OAI)
Available from: 2018-11-29 Created: 2018-11-29 Last updated: 2019-09-25Bibliographically approved
Davoodi, A., Johansson, P. & Aries, M. (2019). The use of lighting simulation in the evidence-based design process: A case study approach using visual comfort analysis in offices. Building Simulation
Open this publication in new window or tab >>The use of lighting simulation in the evidence-based design process: A case study approach using visual comfort analysis in offices
2019 (English)In: Building Simulation, ISSN 1996-3599, E-ISSN 1996-8744Article in journal (Refereed) Epub ahead of print
Abstract [en]

The EBD-SIM (evidence-based design, simulation) framework is a conceptual framework developed to integrate the use of lighting simulation in the EBD process to provide a holistic performance evaluation method. A real-time case study, executed in a fully operational office building, is used to demonstrate the framework’s performance. The case study focused on visual comfort analysis. The objective is to demonstrate the applicability of the developed EBD-SIM framework using correlations between current visual comfort metrics and actual human perception as evaluation criteria. The data were collected via simulation for visual comfort analysis and via questionnaires for instantaneous and annual visual comfort perception. The study showed that for user perception, the most crucial factor for visual comfort is the amount of light on a task area, and simple metrics such as Eh-room and Eh-task had a higher correlation with perceived visual comfort than complex performance metrics such as Daylight Autonomy (DA). To improve the design process, the study suggests that, among other things, post-occupancy evaluations (POEs) should be conducted more frequently to obtain better insight into user perception of daylight and subsequently use new evidence to further improve the design of the EBD-SIM model.

Keywords
building performance simulation, lighting simulation, lighting quality, visual comfort, office field study, evidence-based design
National Category
Architectural Engineering
Identifiers
urn:nbn:se:hj:diva-46419 (URN)10.1007/s12273-019-0578-5 (DOI)
Available from: 2019-10-02 Created: 2019-10-02 Last updated: 2019-10-02
Davoodi, A., Johansson, P., Henricson, M. & Aries, M. (2017). A Conceptual Framework for Integration of Evidence-Based Design with Lighting Simulation Tools. Buildings, 7(4), Article ID 82.
Open this publication in new window or tab >>A Conceptual Framework for Integration of Evidence-Based Design with Lighting Simulation Tools
2017 (English)In: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 7, no 4, article id 82Article, review/survey (Refereed) Published
Abstract [en]

The use of lighting simulation tools has been growing over the past years which has improved lighting analysis. While computer simulations have proven to be a viable tool for analyzing lighting in physical environments, they have difficulty in assessing the effects of light on occupant’s perception. Evidence-based design (EBD) is a design method that is gaining traction in building design due to its strength in providing means to assess the effects of built environments on humans. The aim of this study was to develop a conceptual framework for integrating EBD with lighting simulation tools. Based on a literature review, it was investigated how EBD and lighting simulation can be combined to provide a holistic lighting performance evaluation method. The results show that they can mutually benefit from each other. EBD makes it possible to evaluate and/or improve performance metrics by utilizing user feedback. On the other hand, performance metrics can be used for a better description of evidence, and to analyze the effects of lighting with more details. The results also show that EBD can be used to evaluate light simulations to better understand when and how they should be performed. A framework is presented for integration of lighting simulation and EBD

Place, publisher, year, edition, pages
MDPI, 2017
Keywords
Daylighting, evidence-based design (EBD), building performance simulation (BPS), performance-based design (PBD), computational modelling, lighting simulation tools, human-centric lighting design, post-occupancy evaluation (POE)
National Category
Architectural Engineering
Identifiers
urn:nbn:se:hj:diva-37558 (URN)10.3390/buildings7040082 (DOI)000419187100001 ()2-s2.0-85030649049 (Scopus ID)GOA JTH 2017,GOA HHJ 2017 (Local ID)GOA JTH 2017,GOA HHJ 2017 (Archive number)GOA JTH 2017,GOA HHJ 2017 (OAI)
Note

Special Issue: Building Design and Daylighting Performance

Available from: 2017-10-05 Created: 2017-10-05 Last updated: 2019-06-07Bibliographically approved
Granath, K. & Johansson, P. (2015). Verifiering av krav och värden: Förstudie. Jönköping: Jönköping University, School of Engineering
Open this publication in new window or tab >>Verifiering av krav och värden: Förstudie
2015 (Swedish)Report (Other academic)
Abstract [sv]

Målet med denna förstudie är att inventera dagsläget och framtida möjligheter för verifiering av krav samt analyser av värden genom använda IKT och BIM. Detta ger nya möjligheter för byggherrar att skapa en mer värdedriven byggprocess med målet att optimera byggnadsverkets totala värde för dess ägare, brukare och samhället som helhet.

Resultaten visar att verifieringar av krav och analyser/simuleringar av värden används i ganska begränsad utsträckning idag. De verifieringar som utförs är fokuersade på grundläggande information om utrymmen, t ex att rätt utrymmen finns med samt att de har ungefär rätt storlek. När det gäller analyser och simuleringar så är det kostnadsberäkningar och energianalyser som används i flest skeden.

En av de främsta drivande faktorerna i utvecklingen av analyser och simuleringar är hållbarhetsdiskussionen. Användningen av miljöklassificeringssystem har blivit utbrett i byggbranschen. Litteraturstudien visar att det redan idag går att verifiera med hjälp av BIM att ett flerbostadshusprojekt kommer upp till LEED-guld (71 % av teoretiskt maxvärde). I en mer övergripande studie utgick man ifrån 132 hållbarhetsaspekter, och identifierade programstöd som kunde analysera 55 % av dessa aspekter.

Regelbaserade kontroller av BIM-modeller har redan fått stort praktiskt genomslag, främst för kollisionskontroll. Ju mer utvecklade BIM-modellerna blir desto mer går att kontrollera. En av de mest använda programvarorna som använder denna teknik är Solibri Model Checker. Studier av denna programvara visade att tekniken skulle kunna användas för att automatiskt verifiera de flesta byggherrekrav, om relevant information finns i BIM-modellen.

För en fortsatt utveckling behövs fortsatt implementering av verifieringar och analyser samt erfarenheter från praktisk användning. Men det behövs också att mer information läggs in i BIM-modellerna samt att brister i interoperabilitet (informationsöverföring) mellan BIM-programvaror byggs bort. Kvaliteten på analyserna är helt beroende av kvaliteten på indata, och att modellen är korrekt uppbyggd.

Litteraturstudien gav ett antal indikationer på framtida inrikningar: Ett större fokus på tidiga skeden och en mer holistisk syn på hållbarhet är två sådanan tydliga trender. Det finns också en trend mot att verifieringar och analyser bör vara en del av en evidensbaserad produktframtagningsprocess där användarscenarier är en central del och där utvärdering av byggnadens användning samt verifiering och validering av människors upplevelser är en annan.

Place, publisher, year, edition, pages
Jönköping: Jönköping University, School of Engineering, 2015. p. 51
Series
JTH research report, ISSN 1404-0018 ; 2015-02
National Category
Environmental Analysis and Construction Information Technology
Identifiers
urn:nbn:se:hj:diva-27664 (URN)
Funder
Jönköping County Council
Available from: 2015-08-06 Created: 2015-08-06 Last updated: 2018-08-21Bibliographically approved
Davoodi, A., Johansson, P. & Enger, J. (2014). Comparison of lighting simulation tools with focus on lighting quality. In: : . Paper presented at Improving Energy Efficiency in Commercial Building Conference (IEECB’14) (pp. 15). Frankfurt
Open this publication in new window or tab >>Comparison of lighting simulation tools with focus on lighting quality
2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

By the rise of concerns for global warming, reducing emissions via lowering energy consumption has become a necessity in every sector and the lighting sector is no exception. However, it should not come at the cost of lighting quality and user comfort which is a common practice in today’s lighting design and energy reduction initiatives. The “energy reduction” view should change toward “value driven optimization” in which energy reduction is balanced against lighting quality and user comfort for optimization of the total value of the building. As the use of IT technology grows in lighting design, constant reviews of the software tools are necessary in order to evaluate their performance and ability to design value driven lighting.The main objective of this paper is to compare different lighting simulation tools with respect to their ability to simulate lighting quality both artificial and daylight. The indicators for the comparison are defined based upon findings from another project “criteria for good lighting quality” that is currently being conducted at the same university. First, current numerical metrics for lighting quality are summarized. Then, different simulation tools are evaluated based on a literature study. The outcome of this research summarizes the strength and shortcomings of a number of simulation tools.

Place, publisher, year, edition, pages
Frankfurt: , 2014
Keywords
Lighting Quality, Energy Efficiency, lighting Simulation Tool, Day Lighting
National Category
Building Technologies Architectural Engineering
Identifiers
urn:nbn:se:hj:diva-24047 (URN)
Conference
Improving Energy Efficiency in Commercial Building Conference (IEECB’14)
Projects
Ljussimuleringsberäkningar för en mer värdedriven byggprocess
Available from: 2014-06-10 Created: 2014-06-10 Last updated: 2017-10-05Bibliographically approved
Melander, A., Johansson, P., Lennartsson, M., Elgh, F., Achtenhagen, L., Vimarlund, V., . . . Hellborg, G. (2014). Entreprenöriell produktframtagning för industriellt byggande. Växjö: Smart Housing Småland
Open this publication in new window or tab >>Entreprenöriell produktframtagning för industriellt byggande
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2014 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Växjö: Smart Housing Småland, 2014. p. 19
Series
SHS - rapport ; 2014 - 009
Keywords
Industriellt byggande entreprenörskap produktframtagning
National Category
Business Administration
Identifiers
urn:nbn:se:hj:diva-25323 (URN)
Funder
VINNOVA
Available from: 2014-12-16 Created: 2014-12-16 Last updated: 2018-09-04Bibliographically approved
Linderoth, H., Johansson, P. & Granath, K. (2014). The role of bim in preventing design errors. In: Raiden, A B and Aboagye-Nimo, E (Ed.), Proceedings 30th Annual ARCOM Conference, 1-3 September 2014, Portsmouth, UK, Association of Researchers in Construction Management: . Paper presented at 30th Annual ARCOM Conference, 1-3 September 2014, Portsmouth, UK (pp. 703-712). Association of Researchers in Construction Management (ARCOM)
Open this publication in new window or tab >>The role of bim in preventing design errors
2014 (English)In: Proceedings 30th Annual ARCOM Conference, 1-3 September 2014, Portsmouth, UK, Association of Researchers in Construction Management / [ed] Raiden, A B and Aboagye-Nimo, E, Association of Researchers in Construction Management (ARCOM), 2014, p. 703-712Conference paper, Published paper (Refereed)
Abstract [en]

Design errors are claimed to account for 26% of the cost of defects, these in turn are stated to encompass 2-9% of production cost for building and constructions. Lack of knowledge and information has been identified as a major reasons for design errors. Recently Building Information Modelling (BIM) has been considered as a mean for reducing design errors. However, limited research has been conducted on the role of BIM as a means for transfer and sharing knowledge in order to reduce design errors. The aim of the paper is to analyse BIM’s role of facilitating knowledge and expertise sharing in order to prevent design errors. The aim is achieved by analysing a case study of design errors in a construction project. By drawing on the concept of boundary object it is confirmed that BIM can serve a mean for preventing design errors by facilitating knowledge and expertise sharing, across discipline, time and space, and professional boundaries. Depending the kind of boundary knowledge and expertise should be shared across, different challenges emerge in organizing the knowledge and expertise sharing.

Place, publisher, year, edition, pages
Association of Researchers in Construction Management (ARCOM), 2014
Keywords
design error, BIM, boundary objects, knowledge sharing
National Category
Construction Management
Identifiers
urn:nbn:se:hj:diva-24740 (URN)2-s2.0-84911361130 (Scopus ID)978-0-9552390-8-3 (ISBN)
Conference
30th Annual ARCOM Conference, 1-3 September 2014, Portsmouth, UK
Available from: 2014-09-15 Created: 2014-09-15 Last updated: 2018-09-13Bibliographically approved
Johansson, P. (2013). Svensk sammanfattning av projektet ValPro: IKT-stöd för en värdedriven byggprocess. Jönköping: Tekniska högskolan
Open this publication in new window or tab >>Svensk sammanfattning av projektet ValPro: IKT-stöd för en värdedriven byggprocess
2013 (Swedish)Report (Other academic)
Abstract [sv]

Byggsektorn har mestadels fokuserat på att minska investeringskostnaden. Denna kostnad är väldigt liten i förhållande till kostnaden för förvalting av byggnaden, verksamheten i byggnaden samt värdet av verksamhetens resultat. Detta förhållande indikerar att det finns stora möjligheter att öka ett byggnadsverkets totala värde genom att öka dess värde för verksamhet och förvaltning. Att fokus ändå har legat vid att sänka inversteringskostnaderna beror delvis på att det saknas modeller, metoder och verktyg för en värdebaserad styrning.

ValPro (Value Driven Procurement in Building and Real Estate) är ett multinationellt projekt med deltagare från Cypern, Danmark, Finland, Frankrike, Norge och Sverige. Syftet med projektet är att utveckla byggsektorns processer till att bli mer värdeskapande genom att just utveckla koncept, metoder och verktyg för mer värdebaserad upphandling.

Det övergripande målet för den svenska delen av ValPro var att studera IKT-stöd för en värdedriven byggprocess med fokus på tidiga skeden och att föreslå hur dessa kan utvecklas för att bättre stödja en värdedriven process. Tre fallstudier utfördes där användningen av de två, i Sverige, mest använda IKT-stöden för tidiga skeden studerades, Program för teknisk standard (PTS) och dRofus. Fallstudierna visar att användning av IKT-stöd för tidiga skeden ökar värdet av byggnaden för verksamheten samtidigt som byggprocessen blir effektivare. Fallstudierna visade också att IKT-stöd, såsom PTS, kan underlätta samarbete, kommunikation och erfarenhetsutbyte mellan olika parter och på det sättet vara en starkt bidragande orsak till en mer värdeskapande process.

Vid fallstudierna framgick det att informationsöverföringen mellan förvaltning och byggprocess är viktig men ofta problematisk. Liknande resultat framkom också vid en kartläggning av dagens IKT-stöd i byggprocessen, genomförd av den franska delen av ValPro. Denna kartläggning visade att det finns väldigt lite IKT-stöd som underlättar kunskapsöverföring från förvaltning till tidiga skeden i byggprocessen.

De svenska fallstudierna visade också att IKT-stöden hade väldigt lite stöd för utvärdering av förslag i tidiga skeden. Under 2000-talet har en mängd forskningsprojekt arbetat med att ta fram modeller för hur värden av en fastighet ska mätas, sk värdemodeller. De flesta fastighetsföretag gör också kontinuerlig utvärdering av företagets fastigheter under produktanvändningen, ofta genom sk nyckeltalsstyrning. Utvärdering av byggnader sker både under förvaltningsskedet, baserat på verksamhetens behov och kundnyttan, samt under tidiga skeden i byggprocessen, för att utvärdera förslag inför ny- eller ombyggnad. Samtidigt saknas det verktyg för att överföra information mellan förvaltning och tidiga skeden. Inom den finska delen av ValPro-projektet testades idén att använda samma mätmodell för värden både i förvaltning och byggprocess. Prototypen Needscape implementerades med detta som utgångspunkt i samarbete med Senatfastigheter i Finland.

Slutsatsen från ValPro är att användnigen av IKT-stöd för kravställning i tidiga skeden, t ex PTS, tillsammans med IKT-stöd för utvärdering av olika förslag som har sin grund i förvaltningens utvärderingsmodeller, t ex Needscape, skulle ge en mer värdedriven byggprocess där värden för verksamhet och förvaltning får en mer framskjuten position och är styrande genom hela byggprocessen. En sådan utveckling skulle också ge en ny utmaning för utvecklingen av BIM: att vara ett verktyg för att i tidiga skeden kunna verifiera kraven och analysera värden för den slutliga fastigheten.

Place, publisher, year, edition, pages
Jönköping: Tekniska högskolan, 2013. p. 32
Series
JTH research report, ISSN 1404-0018 ; 2013:01
National Category
Civil Engineering
Identifiers
urn:nbn:se:hj:diva-22522 (URN)
Projects
Värdediven upphandling inom bygg- ohc fastighetssektorn: ValPro
Funder
Swedish Research Council Formas, 244-2009-1835
Available from: 2013-11-01 Created: 2013-11-01 Last updated: 2018-10-09Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-4216-9165

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