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Supporting the design phase of industrialised house building using a product platform approach: A case study of a tmber based post and beam building system
Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).ORCID iD: 0000-0003-2239-973X
2020 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

In recent years, industrialised house building has gained shares on the Swedish house building market. The market demands for industrialised house building are exceeding the available supply of housing and experiencing a substantial increase in the housing production costs. For industrialised house building, the design has been identified as a critical phase with the systematization of the design a necessary part of industrialisation. Therefore, companies strive towards the inclusion of standardization and controlled processes in the design phase. Product platforms have proved to be related to the standardization of processes and products. Introducing a product platform approach in the design phase of house building could be a way to improve the design and ensure value creation in entire processes. Thus, the aim of this research is to outline means to support and improve the design phase of industrialised house building by using a product platform approach.

A Swedish multi-storey house building company that uses glulam post and beam building system with a focus on platform development was used as the single case study in this research. The company intends to achieve increased efficiency by moving towards industrialized approaches. Empirical data were mainly gathered from interviews, observations, workshops, and document analysis. The findings present the existing challenges in the housing building industry and outlines twenty critical success factors that need to be considered in the design phase. Also, the result outlines support methods and tools that can be used for the improvement of the design phase when applying a product platform approach. Moreover, a flexible product platform can be developed with the support of parametric modelling and used to design building components having an engineer-to-order characteristic. Finally, the results show that a building system can be considered as part of a product platform in light of the necessity of an adequate support in the design process to maintain a sustainable platform. Thus, the contribution includes the addition of knowledge to platform theory in general and its application on the design phase of industrialised house building.

Abstract [sv]

Under de senaste åren har det industriella husbyggandet tagit andelar på den svenska husbyggnadsmarknaden. Behovet av bostäder på marknaden överstiger tillgången och med ökning av bostadsproduktionskostnaderna som konsekvens. För det industriella husbyggandet har projekteringen identifierats som en avgörande fas och dess systematisering är en nödvändig för industrialiseringen. Som en följd strävar företag i segmentet efter att inkludera standardisering och kontrollerade processer i projekteringen. Produktplattformar har kunnat kopplas till standardisering av processer och produkter. Införandet av produktplattformar i projekteringen kan vara ett sätt att förbättra designen och säkra värdeskapandet igenom hela processen. Således är syftet i denna avhandling att ta fram medel för att stödja och förbättra projekteringen för industriellt husbyggande genom att tillämpa en ansats med produktplattformar.

Ett svenskt byggnadsföretag med flera våningar som använder limträ- och balksystem med fokus på plattformsutveckling användes som en enda fallstudie i denna forskning. En fallstudie har genomförts på ett företag som bygger flervåningshus med ett pelar-balksystem i limträ med fokus på plattformsutveckling. Företaget har ambitionen att nå högre effektivitet genom att röra sig mot ett mer industriellt tillvägagångssätt. Data samlades in från intervjuer, observationer, workshops och dokumentanalyser. Resultaten visar vilka de befintliga utmaningarna är för husbyggandet och presenterar tjugo kritiska framgångsfaktorer som ska beaktas i projekteringen. Studien har även tagit fram supportmetoder och verktyg som kan användas för att förbättra projekteringen vid tillämpning av produktplattformar. Vidare, en flexibel produktplattform kan utvecklas med stöd av parametrisk modellering och användas för att projektera byggnads-komponenter med engineer-to-orderegenskaper. Slutligen, resultaten pekar mot att ett byggsystem kan betraktas som en del av en produktplattform ur perspektivet att tillräckligt med stöd i projekteringen krävs för att underhålla en hållbar plattform. Således, arbetet har bidragit med kunskap till teori om plattformar i allmänhet och dess tillämpning på projekteringen för industriellt husbyggande.

Place, publisher, year, edition, pages
Jönköping: Jönköping University, School of Engineering , 2020. , p. 67
Series
JTH Dissertation Series ; 053
Keywords [en]
Industrialised house building, Product platform, Design support, Building system, Post and beam, Glulam
Keywords [sv]
Industriellt husbyggande, Produktplattformar, Designstöd, Byggsystem, Pelar-balksystem, Limträ
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:hj:diva-48266ISBN: 978-91-87289-56-9 (print)OAI: oai:DiVA.org:hj-48266DiVA, id: diva2:1428238
Presentation
2020-05-28, da Vinci (E4106) / via Zoom, 14:00 (English)
Opponent
Supervisors
Available from: 2020-05-05 Created: 2020-05-05 Last updated: 2020-05-05Bibliographically approved
List of papers
1. Impact on the Design Phase of Industrial Housing When Applying a Product Platform Approach
Open this publication in new window or tab >>Impact on the Design Phase of Industrial Housing When Applying a Product Platform Approach
2018 (English)In: Proceedings of 26th Annual Conference of the International Group for Lean Construction / [ed] Vicente A. González, Chennai, India, 2018, p. 527-537Conference paper, Published paper (Refereed)
Abstract [en]

With a glulam-based post-beam building system, a variety of building solutions is offered on the market for multi-story buildings. The building system must be adaptable to the demands of each project. However, short lead-time, efficient manufacturing and assembly must be ensured. The use of product platforms has been acknowledged as an enabler to manage external (customer) and internal (production) efficiency. The building system cannot be locked to a set of standard components as a high level of customisation is required. A set of methods and tools is needed to support the design work and to ensure that solutions stay inside the boundaries of the platform definition. The aim of this work is to map the state-of-practice in the design phase for a glulam building system from a platform theory perspective and outline a path forward for applying a sustainable platform development in companies where a component-based product platform does not suffice. Empirical data were gathered from an on-going product platform development including interviews and document analysis. The results show the lack of definition in platform-based product development from a theoretical perspective and need for development of support methods for design that align with different production strategies

Place, publisher, year, edition, pages
Chennai, India: , 2018
Keywords
Product Platform, Industrialised house-building, Engineer-to-order, Glulam
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:hj:diva-41355 (URN)10.24928/2018/0281 (DOI)978-93-80689-29-6 (ISBN)
Conference
26th Annual Conference of the International Group for Lean Construction, 18-20 Jul 2018, Chennai, India
Available from: 2018-09-05 Created: 2018-09-05 Last updated: 2020-05-05Bibliographically approved
2. Challenges and critical success factors for the design phase in Swedish industrialised house building
Open this publication in new window or tab >>Challenges and critical success factors for the design phase in Swedish industrialised house building
2019 (English)In: Proceedings of the 35th Annual ARCOM Conference, 2-4 September 2019, Leeds, UK / [ed] Gorse & C. J. Neilson, Association of Researchers in Construction Management (ARCOM), 2019, p. 34-43Conference paper, Published paper (Refereed)
Abstract [en]

The house building industry has been characterised as less productive compared to the manufacturing industry with numerous and challenging activities including a complex integration process. For the last 20 years, industrialised house building has gained increased research and industry attention and is identified as a potential way to improve the overall house building productivity. In the overall process, the design phase has been identified as the bottleneck with several disciplines which have to be coordinated to generate a design solution that meets various customer and market requirements. Many aspects of a building's performance depend on the decisions taken in the early design process. These decisions can have a substantial impact on the overall design, lead time, cost and quality of the final product. However, there are many other important factors which need to be considered by designers during the design phase. Less attention has been paid to the identification of these factors within the design phase of the industrialised house building. Thus, the main purpose of this paper is to identify challenges and outline the critical success factors to be considered in the design phase of the Swedish industrialised house building. Qualitative research was conducted in combination with literature reviews and multiple case studies linking three Swedish house building companies. Empirical data were gathered from 20 semi-structured interviews. The study identified common challenges in the house building industry and 20 critical factors that should be addressed in the design phase from both literature and practitioners view. The result shows that fixed production is crucial for identifying the critical factors rather than a building system. Also, many challenges identified from this study could be managed by developing a platform-based approach with support tools and methods for critical factors in the design phase.

Place, publisher, year, edition, pages
Association of Researchers in Construction Management (ARCOM), 2019
Keywords
Critical success factors, Design challenges, Design management, Industrialised house building, Off-site construction
National Category
Building Technologies
Identifiers
urn:nbn:se:hj:diva-46559 (URN)2-s2.0-85077113248 (Scopus ID)9780995546349 (ISBN)
Conference
35th Annual ARCOM Conference, 2-4 September 2019, Leeds, UK
Projects
Prowood
Available from: 2019-10-15 Created: 2019-10-15 Last updated: 2020-05-05Bibliographically approved
3. Expanding the building system into a product platform for improved design and manufacture - A case study in Industrialised house building
Open this publication in new window or tab >>Expanding the building system into a product platform for improved design and manufacture - A case study in Industrialised house building
2020 (English)Manuscript (preprint) (Other academic)
National Category
Building Technologies
Identifiers
urn:nbn:se:hj:diva-48264 (URN)
Conference
9th Swedish Production Symposium, SPS 2020, 21-24 April, 2020, Jönköping, Sweden
Note

9th Swedish Production Symposium, SPS 2020. Accepted, to be published. 

Available from: 2020-05-05 Created: 2020-05-05 Last updated: 2020-05-11Bibliographically approved
4. Parametric modelling of steel connectors in a glulam-based post and beam building system - Towards a flexible product platform approach
Open this publication in new window or tab >>Parametric modelling of steel connectors in a glulam-based post and beam building system - Towards a flexible product platform approach
2020 (English)Manuscript (preprint) (Other academic)
National Category
Building Technologies
Identifiers
urn:nbn:se:hj:diva-48265 (URN)
Note

27th International Conference on Transdisciplinary Engineering (TE2020). Accepted, to be published. 

Available from: 2020-05-05 Created: 2020-05-05 Last updated: 2020-05-11Bibliographically approved

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