基于增量动力分析的砌体结构地震疏散仿真研究

Simulation Research on Earthquake Evacuation of Masonry Structures Basedon Incremental Dynamic Analysis，，，

关键词：砌体结构；社会力模型；增量动力分析；所需逃生时间（RSET）；可用有效逃生时间（ASET）中图分类号：TU362 文献标志码：A 文章编号：1005-8249（2024）01-0155-08DOI：10.19860/j.cnki.issn1005-8249.2024.01.027

DING Yao1，XU Ziqi2，LIANG Zhichao2，QIN Tianyi3 （1. Shaanxi Industrial Vocational and Technical College， Xianyang 712Ooo， China ； 2. Earthquake Administration of Henan Province， Zhengzhou 45Oo18， China；

3.Henan Provincial Institute of Transportation Science and Technology，Zhengzhou 45O015，China）

Abstract：Inordertostudtheevacuationabilityofpeopleinamasonrystructurebuildingunderearthquakeaction，atypicalmasony structureresidentialbuldinginChengzonvilgeofXi’ancityasselectedastheresearchbjectncrementaldnamicanalysis（IDA） wasusedtomodeltheresidentialbuilding withfiniteelementsoftware，and2Oseismicwaveswereinputfortimehistoryanalysis.DA curveclustersofachflorunderearthquakeactionwereotained.Findoutthecolapsetimeofachflorundertheactionof8degree basifotificationintesityarthquakeandareeartquake，whichistheASETandthecomparisonofthetwocanseethcasualtsof personel.Theresultsshowthatunder8degreeearthquake，theevacuationtimeis1Oslessthanthatunderrareearthquake，andthe RSETis 85s to95s.Tefistflooofmasonysucurecollpssfist，andthetofloorcollpeslast，withASEangingfrom8.7sto 10.89s.The ASETisfarlessthanRSET，does not mettheconditionsofsafeescape，theearthquake willcausealargenumberof casualties.

Keywords：masonry structure；Social force model；incremental dynamic analysis；RSET；ASET

0引言

西安市是陕西省的省会城市，根据2021年的相关统计数据，西安市三环内现有城中村292处。（剩余9070字）