地下结构地震响应分析  

Seismic response analysis of underground structures

作　　者：孙海峰[1] 景立平[1] 孟宪春[1] 

机构地区：[1]中国地震局工程力学研究所,黑龙江哈尔滨150080

出　　处：《世界地震工程》2010年第S1期330-334,共5页World Earthquake Engineering

基　　金：中国地震局公益性行业科研专项课题项目(200808022);中央级公益性研究所基本科研业务费专项基金项目(051800309)

摘　　要：随着我国地下轨道交通的迅猛发展,地下结构的抗震设计和抗震安全性能评估已成为城市工程抗震和防灾减灾研究的重要课题。文中应用有限元软件ABAQUS建立了典型三层三跨地铁车站在平面S波作用下的模型,通过对各个构件交点处的应力分析得到以下结论:结构受力的最大值发生在结构一层外墙,而且内墙的最大应力发生在一层墙与底板相交处,柱在与底板、二层楼板和顶板相交处是该构件受应力最大的地方,而楼板的最大应力发生在底板与两侧墙相交处。因此,在设计和施工过程中应对以上部位予以重视。Earthquake resistance design of underground structure and seismic safety evaluation is an important subject of urban disaster prevention and mitigation as the underground railuay develops rapidly.In order to study the affect of plane S waves on the structure,finite element software ABAQUS has been used to establish a typical subway station model.After analyzing the stress of each component intersection point,the following conclusions are got: the maximum stress occurs on the exterior wall,and the maximum stress of interior wall occurs at the intersection point of wall and floor.Component intersection points of column and floor,column and second floor,column and roof are the place that the maximum stress happens at,and the maximum stress of floor appears at intersection points of floor and two side walls.Therefore,more attention should be paid to these positions in the process of design and construction of underground struction.

关 键 词：地下结构 有限元 粘性边界 受力分析 

分 类 号：TU93[建筑科学—结构工程] TU311.3