(1清华大学城市轨道交通绿色与安全建造技术国家工程实验室， 北京 100084；2 北京市房地产科学技术研究所， 北京 100021)

［摘要］为了研究北京市传统村落住宅结构的抗震能力，选取北京市门头沟区某传统村落住宅为研究对象，利用通用有限元软件MSC.MARC进行弹塑性时程分析。计算结果表明：北京传统村落住宅在结构布置上存在前后纵墙刚度差异大、山墙中部平面外约束弱的问题，可能出现砌体墙与木构件的连接破坏和山墙的开裂破坏，结构抗震能力弱，不能满足“中震可修，大震不倒”的抗震设防要求；采用前墙设置钢门窗框的加固措施，能提高前纵墙刚度，前檐口最大层间位移角可降低20%左右。

［关键词］传统村落住宅； 砖木结构； 弹塑性时程分析； 抗震能力

中图分类号：TU365文献标识码：A文章编号：1002-848X(2019)09-0055-06

Finite element analysis of the seismic capacity of traditional village residences in Beijing

Zhao Zuozhou1， Xu Songjian1， Liu Hui2， Chen Yu2

(1 National Engineering Laboratory for Green and Safe Construction Technology in Urban Rail Transit, Tsinghua University,  Beijing 100084, China； 2 Beijing Institute of Real Estate Science and Technology, Beijing 100021, China)

Abstract:In order to study the seismic capacity of traditional village buildings in Beijing, taking a traditional village residence in Mentougou district of Beijing as the research object, the elastic-plastic time-history analysis was carried out by using general finite element software MSC.MARC. The results show that large stiffness gap between the front and back longitude walls and lack of out-of-plane restrain in the middle of  the gables are the main problems in structural arrangement of the  traditional village building, which may lead to connection failure between masonry walls and wood members and causes cracking failure of the gables. The seismic capacity of the structure is weak and can not meet the design objectives of “repairable damage under design basis earthquake, and collapse prevention under rare earthquake”. Stiffness of the front longitude wall is increased by setting steel door and window frames, and the maximum inter-story displacement angle of the front cornice can be reduced by about 20%.

Keywords:traditional village building; masonry-wood structure; elastic-plastic time-history analysis; seismic capacity