Deploying 3D scanning based geometric digital twins during fabrication and assembly in offsite manufacturing

Rausch, Christopher and Lu, Ruodan and Talebi, Saeed and Haas, Carl (2021) Deploying 3D scanning based geometric digital twins during fabrication and assembly in offsite manufacturing. International Journal of Construction Management. pp. 1-14. ISSN 1562-3599

gDTs for fabrication and assembly control in offsite manufacturing.pdf - Accepted Version
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Verifying geometric compliance in offsite manufacturing (OSM) is key for ensuring adequate fit-up, structural integrity, building system performance, and assembly alignment on site. The use of a geometric digital twin (gDT) from 3 D scanning can be used to digitize an assembly to detect and resolve potential problems in a prescient manner. The contribution of this article is the development of a framework for deploying and comparing three distinct gDT approaches for use during fabrication and assembly in OSM: (1) a scan-vs-BIM approach, (2) a scan-to-BIM approach and (3) a parametric BIM updating approach. Results from a commercial building project show that scan-vs-BIM is the most accurate approach, parametric BIM updating produces the most semantically rich gDT, and scan-to-BIM is a middle-tiered option, striking a balance between representational accuracy and semantic enrichment. This study concludes that future research should develop a hybrid solution of these gDT approaches and additional more accurate measurement technologies for optimal deployment in OSM.

Item Type: Article
Identification Number:
1 March 2021Accepted
8 March 2021Published Online
Uncontrolled Keywords: Digital twin, quality control, offsite manufacturing, modular construction, building information modelling, laser scanning parametric design
Subjects: CAH13 - architecture, building and planning > CAH13-01 - architecture, building and planning > CAH13-01-02 - building
Divisions: Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Depositing User: Saeed Talebi
Date Deposited: 29 Jun 2021 09:39
Last Modified: 08 Mar 2022 03:00

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