Full Probability Evaluation Of Seismic Performance Of New Rural Residential Buildings In High Intensity Earthquake Areas And Study On Emergency Evacuation Of Residents In Strong Earthquakes

Yunnan is one of the provinces with frequent earthquake accidents and severe earthquake damage in China.Once an earthquake occurs,it often causes varying degrees of house damage and a certain number of casualties.In the survey,it is found that there are a large number of self-built masonry residential buildings in Shangma New Village in kunming city,Yunnan Province.These residential buildings are characterized by large quantity,wide area,poor seismic performance and high building density.In this case,the sudden strong earthquake will often cause a large number of casualties and economic losses.The seismic performance evaluation of residential buildings in Shangma New Village can predict the seismic performance of residential buildings under different earthquake action,so as to put forward suggestions on reconstruction and reinforcement.The study of earthquake emergency evacuation can provide a reference scheme for personnel emergency evacuation to reduce certain casualties.This paper takes Shangma New Village,Panlong District,Kunming city as the research object,conducts field research on the buildings and road traffic of Shangma New Village,and statistics the structure types,floors,buildings,road traffic conditions and nearby emergency shelters of buildings in Shangma New Village.In order to provide theoretical basis for earthquake evacuation simulation of residents,statistical analysis was made on the individual characteristics of residents in Shangma New Village,such as gender and age,as well as the psychological and behavioral responses of the earthquake occurred.In order to provide specific values for parameters of evacuation model,the characteristic indexes of evacuation are summarized based on relevant literatures.SAP2000 finite element software was used to evaluate the seismic performance of four typical buildings in Shangma New Village based on incremental dynamic analysis,to obtain the collapse probability and collapse time of each building under different earthquake action,and to determine the available safe evacuation time ASET of residents.Anylogic is used to simulate the indoor evacuation of four typical residential buildings in Shangma New Village,and the available evacuation time RSET of each residential building is obtained,which is compared with the safe evacuation time ASET.It is found that the residential buildings in Shangma New Village will cause casualties under the action of 0.2g and 0.4g earthquake.Finally,the whole area of Shangma New Village was simulated for earthquake evacuation,and the casualties under different earthquake effects were obtained.The casualty rate was 27.21% under the action of 0.2g earthquake and 98% under the action of 0.4g earthquake.It provides a reference data for earthquake emergency evacuation in Shangma New Village.