Offsite construction: Developing a BIM-Based optimizer for assembly

Gbadamosi, Abdul Quayyum; Mahamadu, Abdul–Majeed; Oyedele, Lukumon O.; Akinadé, Olúgbénga O.; Manu, Patrick; Mahdjoubi, Lamine; Aigbavboa, Clinton

doi:10.1016/j.jclepro.2019.01.113

Cited by 87 publications

(55 citation statements)

References 24 publications

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“…A case study of a wall solution can be found in Gerth et al (2013). Moreover, Gbadamosi et al (2019) identified a list of assessment criteriabased on the DfMA concept and lean construction principlesfor the design optimization of assembly. Factors were identified and prioritized to obtain their weighted importance to the overall assessment system.…”

Section: Resultsmentioning

confidence: 99%

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Design for manufacture and assembly in construction: a review

Gao

Jin

2019

Building Research & Information

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Design for Manufacture and Assembly (DfMA) is known as both a philosophy and a methodology whereby products are designed in a way that is as amenable as possible for downstream manufacturing and assembly. As construction is moving towards a combination of offsite prefabrication and onsite assembly, DfMA is gaining momentum in this heterogeneous industry. Nevertheless, a comprehensive review of DfMA in construction, its prospects and challenges in particular, seems absent from the literature. This study reviews the processes and principles of DfMA and explores the possible perspectives of DfMA with a view to providing implications to the construction industry. It was found that DfMA in construction has been interpreted from three perspectives: (1) a holistic design process that encompasses how structure or object will be manufactured, assembled and guided with DfMA principles; (2) an evaluation system that can work with virtual design and construction (VDC) to evaluate the efficiency of manufacturing and assembly; and (3) a game-changing philosophy that embraces the ever-changing prefabrication and modular construction technologies. This study suggests that development of design guidelines, forming multidisciplinary team, use of VDC systems and understanding the lean principles are factors that could further enhance the successful application of DfMA in construction.

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Section: Resultsmentioning

confidence: 99%

“…Factors were identified and prioritized to obtain their weighted importance to the overall assessment system. However, Gbadamosi et al (2019) study is mainly focusing on the assembly knowledge factors. The identified 14 attributes fall under (1) ease of assembling, (2) ease of handling, (3) speed of assembling, and (4) assembly waste.…”

Section: Resultsmentioning

confidence: 99%

Design for manufacture and assembly in construction: a review

Gao

Jin

2019

Building Research & Information

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“…Within the realm of BIM-integrated studies, some utilise BIM as a pure information platform to derive material data, such as insulation type and thickness, in order to calculate a series of performance or environmental impact indicators [34], or give a score to the design based on predetermined weightings [26]. To account for more dynamic operational conditions, some studies link energy simulation processes to the BIM model.…”

Section: A Building Information Modelling (Bim)-integrated Optimisatimentioning

confidence: 99%

Optimising Embodied Energy and Thermal Performance of Thermal Insulation in Building Envelopes Via an Automated Building Information Modelling (BIM) Tool

Chen¹,

Hammad²,

Kamardeen³

et al. 2020

Preprint

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Insulation systems for the floor, roof and external walls play a prominent role in providing a thermal barrier for the building envelope. Design decisions made for the insulation material type and thickness can alleviate potential impacts on the embodied energy and improve the building thermal performance. This design problem is often addressed using a BIM-integrated optimisation approach. However, one major weakness lies in the current studies is that BIM is merely used as the source for design parameters input. This study proposes a BIM-based envelope insulation optimisation design framework using a common software Revit to find the trade-off between the total embodied energy of the insulation system and the thermal performance of the envelope by considering the material type and thickness. In addition, the framework also permits data visualisation in a BIM environment, and subsequent material library mapping together with instantiating the optimal insulation designs. The framework is tested on a case study based in Sydney, Australia. By analysing sample designs from the Pareto front, it is found that slight improvement in the thermal performance (1.3399 to 1.2112 GJ/m2) would cause the embodied energy to increase by more than 50 times.

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“…Considering the great underlying potential of modular buildings, the industry coupled with academics and endeavoured to propose varied solutions involving building information modelling (BIM), and design for manufacture and assembly (DfMA) facilitating the application of modular buildings [24][25][26][27][28][29]. However, in comparison to conventional buildings, the application of modular buildings is still relatively low, especially for high-rise buildings.…”

Section: Introductionmentioning

confidence: 99%

Constraints Hindering the Development of High-Rise Modular Buildings

Sun

Wang

et al. 2020

Applied Sciences

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Off-site construction has been increasingly employed due to its advantages, for instance, improved quality control, reduced skills labour, faster construction time, decreased material wastage and safe working environment. As the most cutting-edge off-site construction, modular buildings have been utilised for residential building, student accommodation, and hotel projects. However, because of existing and underlying constraints, the adoption of modular buildings is still relatively low. To reveal factors hindering the development of high-rise modular buildings, a comprehensive literature review, coupled with a focus group study, were conducted. A questionnaire survey inquiring about all stakeholders was implemented to quantify constraints. The results were further examined according to a real-life case study. This paper manifested that “Lack of coordination and communication among stakeholders”, “Higher cost”, “Lack of government support”, “Lack of experience and expertise”, “Lack of building codes and standards”, “Poor supply chain integration”, and “Complexity of connection” are the top barriers curbing the uptake of modular buildings. The findings should provide a valuable reference for stakeholders adopting modular buildings, whilst mitigating risks amid modular construction. Future research is expected to exploit building information modelling and design for manufacture and assembly to alleviate these existing constraints and promote the performance of modular construction as well.

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Offsite construction: Developing a BIM-Based optimizer for assembly

Cited by 87 publications

References 24 publications

Design for manufacture and assembly in construction: a review

Design for manufacture and assembly in construction: a review

Optimising Embodied Energy and Thermal Performance of Thermal Insulation in Building Envelopes Via an Automated Building Information Modelling (BIM) Tool

Constraints Hindering the Development of High-Rise Modular Buildings

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