Integrated Off-Site Construction Design Process including DfMA Considerations

Hosang Hyun, Hyung-Geun Kim and Jin-Sung Kim
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Hosang Hyun: Urban Research Center, Seoul Housing and Communities Corporation, Gaepo-ro 621, Gangnam-gu, Seoul 06336, Korea
Hyung-Geun Kim: Urban Research Center, Seoul Housing and Communities Corporation, Gaepo-ro 621, Gangnam-gu, Seoul 06336, Korea
Jin-Sung Kim: Urban Research Center, Seoul Housing and Communities Corporation, Gaepo-ro 621, Gangnam-gu, Seoul 06336, Korea

Sustainability, 2022, vol. 14, issue 7, 1-20

Abstract: Off-site construction (OSC) offers a promising means to improve the efficiency of construction projects. However, the lack of experience and knowledge regarding its use results in errors in design owing to conflicts and omissions of considerations for OSC projects. To mitigate these problems, the design for manufacturing and assembly (DfMA) is widely used to include the considerations in the OSC design process. Several studies concerning the DfMA application in OSC have been performed, but the comprehensive design process is not suggested for mitigating the aforementioned problems. This study proposes an OSC design process by integrating the fragmented DfMA considerations reported in previous studies. The considerations are identified through a systematic literature review and classified into structural and architectural types. To validate the proposed process, an OSC project design has been undertaken as a case study, wherein a significant portion of the building structure has been modified to comprise precast concrete (PC), instead of its reinforced counterpart, with a demonstrated reduction in the PC element design duration. The proposed process would guide and support the design process for reduction in the duration and errors incurred in the process. Moreover, the process can be considered a design guideline for the execution of future projects.

Keywords: offsite construction (OSC); precast concrete (PC); design process; DfMA (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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