Journal of Northeastern University(Natural Science) ›› 2025, Vol. 46 ›› Issue (2): 118-125.DOI: 10.12068/j.issn.1005-3026.2025.20230239

• Resources & Civil Engineering • Previous Articles    

Bridge Construction Risk Assessment Based on Cloud Model Improved AHP

Lian-guang WANG1, Bo YAO1(), Hai-yang GAO1, Li-jie REN2   

  1. 1.School of Resources & Civil Engineering,Northeastern University,Shenyang 110819,China
    2.School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China.
  • Received:2023-08-17 Online:2025-02-15 Published:2025-05-20
  • Contact: Bo YAO

Abstract:

In order to effectively prevent the occurrence of risk accidents during bridge construction and give prospective suggestions for engineering safety,a bridge construction risk assessment method based on cloud model improved analytic hierarchy process(AHP) was proposed. Firstly,the fishbone diagram was used to identify risk factors and construct a bridge construction risk assessment system. Secondly,considering the uncertainty of expert opinions in the process of assigning weights, the cloud model improved AHP is used to calculate the weights of each index. Finally,the two-dimensional cloud model is constructed to evaluate each risk factor from two dimensions: the probability of risk occurrence and the loss caused by risk. Combined with the index weights,the two-dimensional comprehensive cloud model was calculated to quantitatively describe the bridge construction risk level through the close degree. The above assessment method was applied to evaluate the construction risk of a bridge in Changchun. The result shows that the method has high feasibility and effectiveness,and can provide insights and references for the prevention and control of bridge construction risk.

Key words: bridge construction, risk assessment, cloud model improved AHP, two-dimensional cloud model

CLC Number: