Simulation Research on Earthquake Evacuation of Masonry Structures Based on Incremental Dynamic Analysis
In order to study the evacuation ability of people in a masonry structure building under earthquake action,a typical masonry structure residential building in Chengzhong village of Xi'an city was selected as the research object.incremental dynamic analysis(IDA)was used to model the residential building with finite element software,and 20 seismic waves were input for time history analysis.IDA curve clusters of each floor under earthquake action were obtained.Find out the collapse time of each floor under the action of 8 degree basic fortification intensity earthquake and rare earthquake,which is the ASET,and the comparison of the two can see the casualties of personnel.The results show that under 8 degree earthquake,the evacuation time is 10s less than that under rare earthquake,and the RSET is 85s to 95s.The first floor of masonry structure collapses first,and the top floor collapses last,with ASET ranging from 8.72s to 10.89s.The ASET is far less than RSET,does not meet the conditions of safe escape,the earthquake will cause a large number of casualties.
masonry structureSocial force modelincremental dynamic analysisRSETASET
NETL
NSTL
万方数据
