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Publications (10 of 41) Show all publications
Eriksson, H., Sandberg, M., Mukkavaara, J., Jansson, G. & Stehn, L. (2019). Assessing Digital Information Management Between Design and Production in Industrialised House-Building: A Case Study. In: 2019 Proceedings of the 36th ISARC, Banff, Alberta, Canada: . Paper presented at 36th International Symposium on Automation and Robotics in Construction, Banff, May 21-24, 2019 (pp. 340-347).
Open this publication in new window or tab >>Assessing Digital Information Management Between Design and Production in Industrialised House-Building: A Case Study
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2019 (English)In: 2019 Proceedings of the 36th ISARC, Banff, Alberta, Canada, 2019, p. 340-347Conference paper, Published paper (Refereed)
Abstract [en]

Managing digital information in construction is commonly described through Building Information Modelling (BIM), which advocates seamless chains of information, increased coordination between different actors and a life-cycle perspective on information management. However, low adoption outside the design phase entails that handling information in production is in many cases manual and paper-based, which increases vulnerability for upstream errors materialising downstream in production. Furthermore, issues with interoperability surround many areas when managing digital information. For industrialised house-builders, the transmitter and receiver of information are in many cases integrated within the same company or based on long-term collaboration. This affects their ability to manage information and utilise design information, which implies that their strategy for digital information management (DIM) might benefit from being addressed differently compared to more traditional BIM-based approaches. In this paper, we describe and discuss an implemented DIM-solution at an industrialised house-builder in order to address the benefits and challenges with DIM when managing information from design to production. The results imply that in order for several different functions within the company to reap benefits, a customised DIM-solution adapted after the company’s specific needs is a well-suited approach forward to avoid sacrificing functionality when utilising design information.

Keywords
Digital Information Management; Industrialised house-building; Information utilisation; Tailored interoperability; Building Information Modelling
National Category
Construction Management
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-76276 (URN)10.22260/ISARC2019/0046 (DOI)
Conference
36th International Symposium on Automation and Robotics in Construction, Banff, May 21-24, 2019
Available from: 2019-10-08 Created: 2019-10-08 Last updated: 2019-10-08
Sandberg, M., Mukkavaara, J., Shadram, F. & Olofsson, T. (2019). Multidisciplinary Optimization of Life-Cycle Energy and Cost Using a BIM-Based Master Model. Sustainability, 11(1), Article ID 286.
Open this publication in new window or tab >>Multidisciplinary Optimization of Life-Cycle Energy and Cost Using a BIM-Based Master Model
2019 (English)In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, no 1, article id 286Article in journal (Refereed) Published
Abstract [en]

Virtual design tools and methods can aid in creating decision bases, but it is a challenge to balance all the trade-offs between different disciplines in building design. Optimization methods are at hand, but the question is how to connect and coordinate the updating of the domain models of each discipline and centralize the product definition into one source instead of having several unconnected product definitions. Building information modelling (BIM) features the idea of centralizing the product definition to a BIM-model and creating interoperability between models from different domains and previous research reports on different applications in a number of fields within construction. Recent research features BIM-based optimization, but there is still a question of knowing how to design a BIM-based process using neutral file formats to enable multidisciplinary optimization of life-cycle energy and cost. This paper proposes a framework for neutral BIM-based multidisciplinary optimization. The framework consists of (1) a centralized master model, from which different discipline-specific domain models are generated and evaluated; and (2) an optimization algorithm controlling the optimization loop. Based on the proposed framework, a prototype was developed and used in a case study of a Swedish multifamily residential building to test the framework’s applicability in generating and optimizing multiple models based on the BIM-model. The prototype was developed to enhance the building’s sustainability performance by optimizing the trade-off between the building’s life-cycle energy (LCE) and life-cycle cost (LCC) when choosing material for the envelope. The results of the case study demonstrated the applicability of the framework and prototype in optimizing the trade-off between conflicting objectives, such as LCE and LCC, during the design process.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
BIM, multidisciplinary optimization, middleware, master model, house-building
National Category
Construction Management
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-72517 (URN)10.3390/su11010286 (DOI)000457127300286 ()2-s2.0-85059672308 (Scopus ID)
Note

Validerad;2019;Nivå 2;2019-01-30 (svasva)

Available from: 2019-01-11 Created: 2019-01-11 Last updated: 2019-02-22Bibliographically approved
Kubicki, S., Mukkavaara, J. & Sandberg, M. (2018). A master model approach for design and analysis of roof trusses. In: Proceedings of the 35th ISARC, Berlin, Germany: . Paper presented at 35th International Symposium on Automation and Robotics in Construction and International AEC/FM Hackathon: The Future of Building Things, ISARC 2018; Berlin; Germany; 20-25 July 2018 (pp. 325-331). , 35
Open this publication in new window or tab >>A master model approach for design and analysis of roof trusses
2018 (English)In: Proceedings of the 35th ISARC, Berlin, Germany, 2018, Vol. 35, p. 325-331Conference paper, Published paper (Refereed)
Abstract [en]

Apartment housebuilding takes too long time and optimal solutions are seldom found. In housebuilding projects, there is an increased popularity of using virtual models for analyses of structural integrity and floor layout. However, these analyses are seldom coordinated since the models rarely are linked and the designers are not working close enough. As such, optimal designs are hard to find and time flies since even small changes turn into many iterations between design and structural analysis. General building information modeling and virtual design and construction methodologies suggest the use of interoperability and automation to bridge these gaps. There are examples of design tools that link different models using off-the-shelf tools or programming. However, most of the housebuilding companies seldom have these advanced tools or have the competence to do advanced programming. In this paper, we suggest an approach of using visual programming in a common BIM-software to explore the linking of different models. As an example, we study design of roof trusses since for many different roof shapes the same rules usually apply to the design of the truss. This project connects a BIM-software and a FEM-program with a master model. The model automatically generates a roof with the designed truss, draws the representation in a BIM-software and analyze it in a FEM-program. The early evaluations of this visual programming based approach are promising as there are possibilities to connect other domain models and create an even richer evaluation bases for early apartment housebuilding design.

Keywords
Roof trusses, Design automation, Finite element model
National Category
Construction Management
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-70916 (URN)10.22260/ISARC2018/0046 (DOI)2-s2.0-85053896778 (Scopus ID)
Conference
35th International Symposium on Automation and Robotics in Construction and International AEC/FM Hackathon: The Future of Building Things, ISARC 2018; Berlin; Germany; 20-25 July 2018
Available from: 2018-09-20 Created: 2018-09-20 Last updated: 2019-09-13Bibliographically approved
Sandberg, K., Pousette, A., Norén, J., Sandberg, M., Olofsson, T. & Mukkavaara, J. (2018). Hållbarhetsutvärdering av byggnader: Case Ripan i Kiruna. RISE
Open this publication in new window or tab >>Hållbarhetsutvärdering av byggnader: Case Ripan i Kiruna
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2018 (Swedish)Report (Other academic)
Abstract [en]

Sustainability includes several parameters, and these can be measured and valued in many different ways. This study focuses on balancing the various parts to achieve sustainability by minimizing energy for heating and energy to produce the materials used in the building as well as minimizing cost for material investment and cost for heating using optimization techniques. This is balanced together with the environmental impact. This report describes an initial study for sustainability optimization of a smaller building. The goal is to develop a comprehensive approach to provide a broader basis of decisions for new construction.

The calculation included the building envelope (exterior walls, roof and floors), interior walls and stabilizing elements for different frames of wood (timber frame and CLT).

The result from the Ripan Case shows that the timber frame design has the lowest embodied energy and operating energy, and lowest cost for investment and heating during the operating phase. The environmental impact of the timber frame design was also low.

Abstract [sv]

Hållbarhet innefattar flera parametrar och dessa kan mätas och värderas på många olika sätt. Att väga ihop de olika delarna för att uppnå hållbarhet genom att minimera förbrukad energi för uppvärmning och energi för att producera material till bygget samt investeringskostnader för material och kostnader för uppvärmning är fokus i denna rapport. Detta vägs samman med miljöpåverkan. En inledande studie för hållbarhetsoptimering av en mindre byggnad är genomförd med målet är att utveckla en övergripande metod för att ge bredare beslutsunderlag vid nybyggnad.

Beräkningar av inbyggd energi, driftsenergi, investerings- och uppvärmningskostnader har genomförts för ett planerat hus på Camp Ripan i Kiruna. I beräkningen av byggnaden inkluderades klimatskärm (ytterväggar, stomstabiliserande element och grund) för två olika stommar av trä (träregelstomme och KL-trä). För miljöberäkningarna användes främst indata från EPDer och resultatet redovisas i form av klimatpåverkan, CO2-ekvivalenter.

Den utvecklade metoden ger potential för bättre ekologisk och ekonomisk hållbarhet genom ett optimerat val av byggnadsmaterial för byggnader. Optimeringsalgoritmen ger förslag på byggnadsmaterial med minst energiåtgång vid produktion, den sk inbyggda energin, samt vid uppvärmning under driftsfasen samt lägst kostnader. Miljöaspekten vägs också in i bedömningen för att få ett mer heltäckande beslutsunderlag för beställare och projektörer. Metoden är tänkt att i fortsatta studier vidareutvecklas för användning på mer komplexa byggnader som till exempel flerbostadshus.

Resultatet från Case Ripan visar att regelkonstruktionen har lägst inbyggd energi, driftsenergi, investeringskostnad samt kostnad för uppvärmning under driftsfasen. Även miljöpåverkan från regelkonstruktionen var låg.

Place, publisher, year, edition, pages
RISE, 2018. p. 33
Keywords
Sustainability, low energy house, energy optimization, LCA, timber house
National Category
Engineering and Technology
Research subject
Construction Management and Building Technology
Identifiers
urn:nbn:se:ltu:diva-73467 (URN)978-91-88907-33-2 (ISBN)
Funder
Swedish Agency for Economic and Regional Growth
Available from: 2019-04-05 Created: 2019-04-05 Last updated: 2019-04-11Bibliographically approved
Shadram, F., Mukkavaara, J., Schade, J. & Sandberg, M. (2018). Trade-off optimization of embodied versus operational carbon impact for insulation and window to wall ratio design choices: A case study. In: : . Paper presented at 10th International Conference on Sustainability and Energy in Buildings, SEB 2018; Gold Coast; Australia; 24-26 June 2018.
Open this publication in new window or tab >>Trade-off optimization of embodied versus operational carbon impact for insulation and window to wall ratio design choices: A case study
2018 (English)Conference paper (Refereed)
Identifiers
urn:nbn:se:ltu:diva-72857 (URN)
Conference
10th International Conference on Sustainability and Energy in Buildings, SEB 2018; Gold Coast; Australia; 24-26 June 2018
Available from: 2019-02-12 Created: 2019-02-12 Last updated: 2019-02-12
Sandberg, M., Risberg, M., Ljung, A.-L., Varagnolo, D., Xiong, D. & Nilsson, M. (2017). A modelling methodology for assessing use of datacenter waste heat in greenhouses. In: : . Paper presented at Third International Conference on Environmental Science and Technology, ICOEST, Budapest, 19-23 October 2017.
Open this publication in new window or tab >>A modelling methodology for assessing use of datacenter waste heat in greenhouses
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2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In Sweden, the number of datacenters establishments are steadily increasing thanks to green, stable and affordable electricity, free air cooling, advantageous energy taxes and well-developed Internet fiber infrastructures. Even though datacenters use a lot of energy, the waste heat that they create is seldom reused. A possible cause is that this waste heat is often low grade and airborne: it is therefore hard to directly inject it into a district heating system without upgrades, which require additional energy and equipment that generate extra costs. One option for reusing this heat without needs for upgrades is to employ it for heating up greenhouses. But assessing the feasibility of this approach by building physical prototypes can be costly, therefore using computer models to simulate real world conditions is an opportunity. However, there is a lack of computer modelling methodologies that can assess the possibility of using waste heat from datacenters in greenhouses in cold climates.

The objective of this paper is therefore to propose such a methodology and discuss its benefits and drawbacks in comparison with other research studies. This methodology combines computational fluid dynamics, process modelling and control engineering principles into a computer model that constitutes a decision support system to study different waste heat and greenhouse or mushroom house scenarios.

The paper validates the strategy through a case study in northern Sweden, where we assess the amount of produced waste heat by collecting temperature, relative humidity, and fan speed data for the air discharged from the datacenter.

The resulting methodology, composed by conducting measurements and computer models, calculations can then be used for other datacenter operators or greenhouse developers to judge whether it is possible or not to build greenhouses using datacenter waste heat.

National Category
Energy Engineering Other Civil Engineering Fluid Mechanics and Acoustics Control Engineering Other Biological Topics
Research subject
Construction Engineering and Management; Control Engineering; Energy Engineering; Fluid Mechanics
Identifiers
urn:nbn:se:ltu:diva-66466 (URN)
Conference
Third International Conference on Environmental Science and Technology, ICOEST, Budapest, 19-23 October 2017
Funder
Swedish Energy Agency, 41845-1
Available from: 2017-11-08 Created: 2017-11-08 Last updated: 2019-08-29Bibliographically approved
Sandberg, M., Tyapin, I., Kokkolaras, M., Lundbladh, A. & Isaksson, O. (2017). A knowledge-based master model approach exemplified with jet engine structural design. Computers in industry (Print), 85, 31-38
Open this publication in new window or tab >>A knowledge-based master model approach exemplified with jet engine structural design
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2017 (English)In: Computers in industry (Print), ISSN 0166-3615, E-ISSN 1872-6194, Vol. 85, p. 31-38Article in journal (Refereed) Published
Abstract [en]

Successful product development requires the consideration of multiple engineering disciplines and the quantification of tradeoffs among conflicting objectives from the very early design phases. The single-largest challenge to do so is the lack of detailed design information. A possible remedy of this issue is knowledge-based engineering. This paper presents a knowledge-based master model approach that enables the management of concurrent design and analysis models within different engineering disciplines in relation to the same governing product definition. The approach is exemplified on an early phase structural design of a turbo-fan jet engine. The model allows geometric-, structural mechanics- and rotor-dynamic- models to be concurrently integrated into a multi-disciplinary design and optimization loop.

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Mechanical Engineering
Research subject
Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-61297 (URN)10.1016/j.compind.2016.12.003 (DOI)000393528300004 ()2-s2.0-85007480242 (Scopus ID)
Funder
VINNOVA
Note

Validerad; 2017; Nivå 2; 2017-01-09 (andbra)

Available from: 2017-01-02 Created: 2017-01-02 Last updated: 2018-09-13Bibliographically approved
Viklund, E., Sandberg, M., Lidelöw, H. & Jansson, G. (2017). Modularization based on commonalities in house-building requirements. In: Wang Y.,Al-Hussein M.,Shen G.Q.P.,Zhu Y. (Ed.), ICCREM 2016: BIM Application and Offsite Construction - Proceedings of the 2016 International Conference on Construction and Real Estate Management 2016. Paper presented at 2016 International Conference on Construction and Real Estate Management, ICCREM 2016, Edmonton, Canada, 29 September - 1 October 2016 (pp. 126-134). Reston, VA: American Society of Civil Engineers (ASCE)
Open this publication in new window or tab >>Modularization based on commonalities in house-building requirements
2017 (English)In: ICCREM 2016: BIM Application and Offsite Construction - Proceedings of the 2016 International Conference on Construction and Real Estate Management 2016 / [ed] Wang Y.,Al-Hussein M.,Shen G.Q.P.,Zhu Y., Reston, VA: American Society of Civil Engineers (ASCE), 2017, p. 126-134Conference paper, Published paper (Refereed)
Abstract [en]

Some of the requirements governing the design of houses are common between projects. This opens up for using modularization based on product commonalities. Though modularization is well known in the manufacturing industry, its use in house-building contexts is less studied. Even more scarce is research focusing on how requirement commonalities between one-of-a-kind products are found and managed in a modularization process. In this research, modularization from a requirements management perspective is empirically explored using a case study approach. Though the studied modularization process can be described as sequential, the process steps are highly interrelated, with overlaps and iterations. Commonalities are found by functional decomposition of the customer's portfolio projects, tracing technical solutions back to their initial requirements. These are balanced with the customer's requirements on the product and on the design automation tool. The requirement list is continuously updated based on portfolio analysis and communication of modularization results to the customer

Place, publisher, year, edition, pages
Reston, VA: American Society of Civil Engineers (ASCE), 2017
National Category
Civil Engineering Building Technologies Construction Management
Research subject
Construction Engineering and Management; Timber Structures
Identifiers
urn:nbn:se:ltu:diva-60844 (URN)10.1061/9780784480274.016 (DOI)2-s2.0-85029590804 (Scopus ID)9780784480274 (ISBN)
Conference
2016 International Conference on Construction and Real Estate Management, ICCREM 2016, Edmonton, Canada, 29 September - 1 October 2016
Available from: 2016-12-01 Created: 2016-12-01 Last updated: 2018-08-07Bibliographically approved
Sandberg, M., Gerth, R. & Viklund, E. (2016). A design automation development process for building and bridge design. In: Proceedings of the 33rd CIB W78 Conference 2016, Oct. 31st – Nov. 2nd 2016, Brisbane, Australia: . Paper presented at 33rd CIB W78 Conference 2016, Oct. 31st – Nov. 2nd 2016, Brisbane, Australia.
Open this publication in new window or tab >>A design automation development process for building and bridge design
2016 (English)In: Proceedings of the 33rd CIB W78 Conference 2016, Oct. 31st – Nov. 2nd 2016, Brisbane, Australia, 2016Conference paper, Published paper (Refereed)
Abstract [en]

The increasing industrialization and standardization of construction opens up for the field of design automation. Such applications, for buildings and infrastructural products, are starting to appear by using software from the manufacturing industry. A challenge is, however, to develop such design automation applications since approaches combining product analyses, requirements management, and development of product platforms and configurators are lacking for construction. Using a bottom up approach to study existing best practice and create more general approaches is one way. In this paper we study the design automation development process from three cases; 1) edge beams, focusing on requirements management, 2) outer non-bearing walls, considering configurator development, and 3) end frame bridge superstructures, featuring the development of generic analysis procedures. These three processes are analyzed and merged into a more generic process which can be used to guide future developments of design automation applications within construction.

National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-60206 (URN)
Conference
33rd CIB W78 Conference 2016, Oct. 31st – Nov. 2nd 2016, Brisbane, Australia
Available from: 2016-11-08 Created: 2016-11-08 Last updated: 2017-11-24Bibliographically approved
Mukkavaara, J., Jansson, G., Holmberg, A. & Sandberg, M. (2016). Approach for Automated Planning Using 5D-BIM. In: Proceedings of the 33rd CIB W78 Conference 2016, Oct. 31st-Nov. 2nd 2016, Brisbane, Australia: . Paper presented at 33rd CIB W78 Conference 2016, Oct. 31st-Nov. 2nd 2016, Brisbane, Australia.
Open this publication in new window or tab >>Approach for Automated Planning Using 5D-BIM
2016 (English)In: Proceedings of the 33rd CIB W78 Conference 2016, Oct. 31st-Nov. 2nd 2016, Brisbane, Australia, 2016Conference paper, Published paper (Refereed)
Abstract [en]

Early planning decisions are usually dependent on time-demanding, manually produced cost estimations and schedules. There is a trend in the construction industry to use 5D-BIM to speed up these processes and automated approaches can be used to further improve effectiveness. This research aims to investigate how to create an automated 5D-BIM planning process when using industrialized building systems. We propose an approach that combines a BIM manual with predefined databases based on the building system and its properties. A case study at one of Scandinavia’s largest construction and property development companies was conducted where the presented approach was tested. The findings show that planning using 5D-BIM is possible to partially automate through our approach but that there are challenges for a fully automated process in the standardization required and assuring that the quality of data in each step is adequate.

Keywords
5D-BIM, automation, industrialized house-building, building system
National Category
Construction Management
Research subject
Construction Engineering and Management
Identifiers
urn:nbn:se:ltu:diva-60851 (URN)
Conference
33rd CIB W78 Conference 2016, Oct. 31st-Nov. 2nd 2016, Brisbane, Australia
Available from: 2016-12-01 Created: 2016-12-01 Last updated: 2018-08-15Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-2699-2533

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