Citation

Dan W, Jinghan L. China Saf. Sci. J. 2022; 32(10): 69-75.

Copyright

(Copyright © 2022, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2022.10.2119

PMID

unavailable

Abstract

In order to reduce the construction risks of prefabricated building projects, indexes were refined based on accident analysis and other methods, and the construction risk evaluation index system of prefabricated buildings with 5 primary indexes and 26 secondary ones was established. Then, the contingency theory and nearness degree were introduced to replace constant weight assignment method and correlation degree algorithm in traditional matter element extension method, and the construction risk assessment model of prefabricated buildings based on the improved matter element extension was constructed. Finally, the model was applied to validate the case whose construction risk level was obtained to be 1, namely low risk, and effectiveness of the model was verified by comparing its assessment results with those of the traditional one. The results show that the assessment model based on the improved matter element extension method can be applied to effectively evaluate the project risk status before the occurrence of accidents and achieve the purpose of improving risk management benefits. © 2022 China Safety Science Journal. All rights reserved.

Language: zh