Simulation of Building Construction Safety Warning Based on Risk Conduction BN Model
In order to achieve effective and safe construction warning,this paper proposed a multi-factor coupling risk detection and warning method.At first,a questionnaire survey was used to collect risk indicators,and then a risk assessment system was constructed by combining the Cronbach's alpha coefficient and Bartlett sphericity index.Based on the risk conduction characteristics of the construction site,DEMATEL method was adopted to analyze the interde-pendence among multiple factors affecting the construction safety,and thus to build a risk conduction BN model.Through the analysis of risk levels,the warning for multi-factor coupling construction was achieved,thus reducing the probability of accidents occurring.Experimental results show that the proposed method exhibits high warning accuracy in construction warning.Under the condition of multi-factor coupling,the method can accurately obtain the main fac-tors leading to accidents.