Research on risk assessment of prefabricated building construction based on Cov-AHP and cloud model
In order to improve the safety risk identification and control ability of prefabricated building construction,this study is based on the"4M1E"construction management theory,screening 22 typical influencing factors from five aspects by the difference ranking method,con-structing a safety risk evaluation index system for prefabricated building construction and estab-lishing a risk evaluation model based on the Cov-AHP and cloud model.The risk evaluation mod-el is established based on the Cov-AHP and cloud model,with the empirical study carried out in an prefabricated building in Xi'an City as an example.The results show that the construction en-vironment and participants have the greatest impact on the construction safety of prefabricated building,followed by construction materials;organization management and construction methods are relatively small,and the evaluation results are consistent with the construction status of pre-fabricated building,further demonstrating the applicability and scientificity of the model.The re-search results provide a new idea for construction safety risk identification and control of prefabri-cated building and provide experience for risk assessment of similar projects.
prefabricated buildingconstruction managementrisk assessmentCov-AHPcovar-iance matrixcloud model