Investigation of factors and their dynamic influences on multi-party collaboration in bim-based prefabricated buildings

Prefabricated buildings offer numerous benefits such as high-quality construction, energy efficiency, and eco-friendliness. The emergence of building information modeling (BIM) has greatly accelerated the popularization of prefabricated buildings. Nevertheless, the development of BIM-based prefabricated buildings is still immature, requiring the cooperation of multi-parties. How to coordinate the working relationship among multi-parties and improve work efficiency in each stage has become a challenge. In this study, six factors affecting multi-party collaboration in BIM-based prefabricated buildings are identified through a literature review combined with the Delphi method, including information collaboration C 1 , resource collaboration C 2 , organization collaboration C 3 , environment collaboration C 4 , process collaboration C 5 , and goal collaboration C 6 . Then, with the method of fuzzy cognitive map (FCM), a multi-party collaboration FCM model is constructed to explore the dynamic influence of six factors on collaborative efficiency. The results show that (1) six collaborative factors are positively correlated with collaborative efficiency, among which C 3 and C 6 have the highest positive correlation; (2) when collaborative efficiency changes, C 1 and C 3 are most affected; and (3) without considering the uncontrollable factors in construction, the collaborative efficiency is most sensitive to the change of C 3 and C 6 . The findings of this study are of great significance in improving the efficiency of multi-party collaboration and ensuring the high-quality construction of BIM-based prefabricated building projects.