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. 2022 Apr 24;19(9):5180.
doi: 10.3390/ijerph19095180.

Evaluation Method for Quality Risks of Safety in Prefabricated Building Construction Using SEM-SDM Approach

Xiaojuan Li  1 , Chen Wang  2 , Mukhtar A Kassem  3 , Hamed H Alhajlah  4 , Samuel Bimenyimana  2
Affiliations

Evaluation Method for Quality Risks of Safety in Prefabricated Building Construction Using SEM-SDM Approach

Xiaojuan Li et al. Int J Environ Res Public Health. .

Abstract

The construction of prefabricated buildings is an effective and efficient approach to improving construction processes and productivity. However, there are practical problems in this approach, such as listing, safety risk levels, and quality control. This study aims to develop a systematic approach for determining the key factors affecting prefabricated building projects' quality and safety risk and assessing this risk. Based on the literature review, a structured questionnaire was distributed to 408 China-based construction organizations. Considering the factors of safety risk evaluation systems for construction, the safety risk model of prefabricated buildings is established and combined with structural equation modeling (SEM) and a system dynamic model (SDM). A detailed case study was conducted to verify the empirical findings. The results show that pre-construction, during-construction, and after-construction significantly influence the quality risk (from high to low). The final comprehensive score is 92.71, indicating that the construction safety of the residential building is generally controllable and the quality is guaranteed. Furthermore, the investment risk of such projects can be assessed using SEM and SDM. This study contributes to the literature by considering quality-risk-influencing factors in this field. Furthermore, the findings provide an understanding of implementation and quality risk control for prefabricated building projects and provide valuable information to departments in charge of improving the safety risk performance of such projects.

Keywords: prefabricated buildings; quality and safety; risk evaluation; structural equation modelling; system dynamic model.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Hypothetical relational model.
Figure 2
Figure 2
Second-order confirmatory factor analysis structural model diagram.
Figure 3
Figure 3
Inventory flow chart of construction safety risk factors.
Figure 4
Figure 4
Analysis of construction safety risk assessment system.
Figure 5
Figure 5
Analy-sis of risk changes in different stages of the construction site.
Figure 6
Figure 6
On-site construction pictures of prefabricated building projects.
See this image and copyright information in PMC

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