Research on Reliability of Prefabricated Steel Buildings during Cascade Utilization
In order to promote better use of building resources and accurately analyze the reliability of prefabricated steel buildings in the"assemble-disassemble-reuse"application scenarios of temporary facilities for sports events,emergency buildings,detachable military barracks,an analysis method of safety performance and health performance of prefabricated steel building system in the process of cascade utilization is established based on Markov method of reliability engineering complex system analysis,after the redundancy category determination,reliability function derivation,function optimization analysis and other steps,in which the concept of building cascade utilization is introduced.The accuracy and efficiency of reliability analysis are improved by introducing the correction coefficient of failure probability to characterize the safety performance of building system and the health performance variable to characterize the health performance of building system.The evaluation index system of safety performance and health performance in the method can be adjusted according to the actual engineering,so that it has high flexibility in engineering application.Taking the application process of prefabricated steel structure temporary service facilities disassembled after the Winter Olympics in the public space of People's Park as an example,this paper introduces the application process of the analysis method,which has certain reference for engineering application.