Research on risk assessment of large-span steel structure project construction phase based on variable weight-two dimensional cloud model

Houning Feng; Weizhen Ma; Haiyan Wen

doi:10.1117/12.2658181

22 December 2022 Research on risk assessment of large-span steel structure project construction phase based on variable weight-two dimensional cloud model

Houning Feng, Weizhen Ma, Haiyan Wen

Author Affiliations +

Proceedings Volume 12460, International Conference on Smart Transportation and City Engineering (STCE 2022); 1246038 (2022) https://doi.org/10.1117/12.2658181
Event: International Conference on Smart Transportation and City Engineering (STCE 2022), 2022, Chongqing, China

Abstract

As an all-round emerging branch of the construction industry, large-span steel structure engineering has a long on-site construction period, complex on-site construction process, and a series of uncertain unfavorable factors. The resulting risks will directly affect the smooth progress of large-span steel structure projects. In order to improve the effective control of risks in the construction stage of long-span steel structures, a risk assessment model for the construction stage of long-span steel structures based on variable weight theory is proposed. The WSR system method is used to analyze the construction risks, and a comprehensive evaluation index system for risks in the construction stage of large-span steel structures is constructed. With the help of the variable weight comprehensive model, the two-dimensional cloud model is used to comprehensively evaluate the risks of the large-span steel structure in the construction stage from the two dimensions of risk hazard and risk probability. Finally, the two-dimensional cloud image is drawn through MATLAB and the fit degree is calculated to further determine the evaluation result. Taking a large-span steel structure stadium in Lanzhou City, Gansu Province as the research object, a comprehensive assessment of the risks of the large-span steel structure construction stage was carried out, confirm the applicability and effectiveness of the model.

Citation Download Citation

Houning Feng, Weizhen Ma, and Haiyan Wen "Research on risk assessment of large-span steel structure project construction phase based on variable weight-two dimensional cloud model", Proc. SPIE 12460, International Conference on Smart Transportation and City Engineering (STCE 2022), 1246038 (22 December 2022); https://doi.org/10.1117/12.2658181

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