Study On Construction Safety Evaluation Of High-Rise Building Based On FAHP And SEM

With the development of urbanization and the rapid increase of urban population,high-rise buildings appear.However,due to the defects of high-rise building construction management,construction safety accidents have become a threat to people’s lives.Therefore,it is very important to strengthen the research on construction safety evaluation of high-rise building.In view of the safety problems existing in the construction of high-rise buildings,the paper firstly determines the influencing factors of construction safety by the method of combining accident analysis with literature data,then,the influence factors are screened and optimized by the method of expert investigation,and the safety evaluation index system of high-rise building construction is constructed.In order to discuss the influence factors of high-rise construction safety,fuzzy analytic hierarchy process(FAHP)and structural equation model(SEM)were used to evaluate the safety.Firstly,the weight of each index in the project is determined by AHP,and the influence degree of each index weight is analyzed.At the same time,the questionnaire was designed and distributed,the reliability and validity were tested by SPSS software,and the structural equation model was established by AMOS24.0 software,by modifying the model,both the internal structure fitness and the overall model fit meet the requirements.On the basis of SEM path analysis,the influence degree of each index is calculated by weighted weight.By comparing the results of the above two methods,it is found that the conclusion of the two methods on the influencing factors of high-rise construction safety is basically the same,the next is management factor,mechanical factor,the lowest impact is the environmental factor,the difference is the material factors and technical factors of the Order of influence,through the expert consultation of the analytic hierarchy process more attention to materials.Finally,combining the results of fuzzy analytic hierarchy process and structural equation model,from the aspects of personnel management,system management,machinery management,technology management,Material Management and Environment Management,the paper puts forward corresponding suggestions.