Study on Risk Assessment of Bridge Construction Based on AHP-GST Method

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Huang, Ruixin^1 ; Peng, Keke^1 ; Zhou, Wen^1,2

School of Transportation and Civil Engineering and Architecture, Foshan University, Foshan

528000, China^1

China Railway Engineering Construction Branch, Guangzhou

510000, China^2

关键词: Analytic hierarchy process (ahp);    Bridge constructions;    Construction stages;    Data sample;    Grey system theory;    Risk grade;    Scoring methods;    Weight matrices;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/4/042017/pdf
DOI  :  10.1088/1755-1315/189/4/042017

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

AHP-GST method for bridge risk assessment is proposed. The expert scoring method is used to get the risk assessment data sample, and the analytic hierarchy process (AHP) is combined with the grey system theory. The risk possibility is calculated by analytic hierarchy process, and the weight matrix of each risk objective layer is obtained. The grey system theory is used to judge the severity of the risk, and the whitening value weight matrix of each index is obtained. Five kinds of risk weights are calculated and the engineering risk grade is determined according to the principle of maximum membership. Taking Jiangshun Bridge as an example, the AHP-GST method is used to evaluate the risk of the bridge's substructure in construction stage. The result of risk assessment is consistent with that obtained by the current guidance method, which shows that the method is reasonable and can be applied to the risk assessment of bridge construction.