Research on Safety Evaluation of Hoisting Engineering in Construction Based on Bayesian Network

Hoisting engineering is an important part of building construction, and its safety problems can’t be ignored. To effectively assess and reduce the safety risk of hoisting operations in construction engineering, this paper introduces the T-S model based on the traditional accident tree model and combines it with the Bayesian network to establish a kind of safety evaluation model for the project of hoisting operation in construction engineering, and utilizes the model to evaluate the safety risk of the actual hoisting case. The results show that the model can quantitatively calculate the risk probability of the primary risk factors in the hoisting project. It can not only calculate the probability of the final event in a forward reasoning way to determine the critical control order of each risk factor but also carry out reverse reasoning to investigate the causes of safety accidents in the hoisting project. The safety evaluation model is close to the actual construction, which can provide theoretical support for the exemplary safety management of construction hoisting projects.