Research On Safety Risk Assessment Of High-rise Building Construction Based On Structural Equation Model

In recent years,with the rapid increase in the number of high-rise buildings in China,high-rise building construction safety accidents have occurred frequently,which has brought huge challenges to safety production management and accident prevention.The reason is that the superficial safety risk management of some construction companies,the failure to innovate safety management models for the ever-changing construction environment,the introduction of new methods of safety risk identification and risk assessment,etc.,have led to the frequent occurrence of high-rise building construction safety accidents in my country.main reason.Therefore,it is urgent to carry out in-depth research on the safety risk assessment of high-rise building construction.This article focuses on the safety risk assessment of high-rise building construction.First of all,based on the analysis of high-rise building construction safety accidents and reference to a large number of documents,a preliminary set of high-rise building construction safety risk factors is established,and the risk factors are screened by gray correlation analysis,and the risk evaluation index system is determined.Secondly,the structural equation model(SEM)is used to analyze the relationship between various risk factors,and the path coefficient of the high-order structural equation model is used to determine the degree of influence(weight)of each risk evaluation index on the construction safety of high-rise buildings.Then,the stock flow diagram and system dynamics equations are established by VENSIM software to verify the weights determined by the high-order structural equation model to ensure the reliability and rationality of the weights.On this basis,construct a structural equation model-multi-level fuzzy comprehensive evaluation(SEM-MFCE)model.Finally,taking the Jianye Longcheng project in Henan Province as an example,the SEM-MFCE model was used to evaluate the safety risk of the project,and the safety risk level of the project was determined,which verified the scientificity and feasibility of the model.The case analysis shows that the research in this article not only provides new ideas for the research of high-rise building construction safety risk assessment,but also has certain theoretical significance and reference value for reducing the risk of high-rise building safety accidents.