Risk identification and assessment of bridge cable hoisting construction based on Bayesian network
In response to various risks that may be encountered in bridge cable hoisting construction,Bayesian networks are introduced to e-valuate the risks of cable hoisting construction.Firstly,through data research,clarify the construction steps of bridge cable hoisting and the various risk factors hidden in each step.Secondly,based on the data obtained from expert investigations,a Bayesian network is established to infer the probability of risk factors and achieve risk assessment for bridge cable hoisting construction.Finally,taking the construction safety risk assessment of a certain arch bridge as an example,the feasibility and reliability of the proposed method are verified.The results indicate that risk factors such as cable installation,main arch closure,temporary support collapse,damage to local lifting points due to ex-cessive force,collision between personnel and structures,breakage during cable tensioning,and incomplete or uneven closure of joints are the key risk factors leading to cable hoisting projects.The overall cable hoisting project is more likely to have moderate risks.
万方数据
维普
