China Safety Science Journal ›› 2019, Vol. 29 ›› Issue (4): 171-176.doi: 10.16265/j.cnki.issn1003-3033.2019.04.027

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Analysis of key safety risks in prefabricated building construction based on structural equation model

LI Haoran, LI Qiming, LU Ying   

  1. School of Civil Engineering, Southeast University, Nanjing Jiangsu 210096, China
  • Received:2019-01-10 Revised:2019-03-05 Online:2019-04-28 Published:2020-11-04

Abstract: In order to prevent construction accidents, relevant literature and safety technical regulations were reviewed and 25 major risks in prefabricated building construction were identified from five stages of production, approach and transportation, storage, hoisting and installation of prefabricated components. Data were collected through questionnaires and the SEM was used to conduct CFA of these 25 risks and then 18 key risk factors were screened. The correlations among risk factors in five stages were analyzed. The results show that the sequence from high to low of risks in each stage of prefabricated building construction process is: prefabricated components storage stage, hoisting stage, approach and transportation stage, installation stage, and production stage, and that the sequence from high to low of correlations of each stage is: storage-hoisting, production-approach and transportation, storage-installation, storage-approach and transportation, hoisting-installation, production-hoisting, installation-approach and transportation, hoisting-approach and transportation, production-storage, and production- installation.

Key words: prefabricated building, construction, safety risk, structural equation model(SEM), confirmatory factor analysis(CFA)

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