软弱地基地铁车站结构地震反应特性分析  

Analysis on Seismic Response Characteristics of Structure of Subway Station with Soft Site

作　　者：梁艳仙[1] LIANG Yanxian(Chengdu Aeronautic Polytechnic, Chengdu 610100, China)

机构地区：[1]成都航空职业技术学院,成都610100

出　　处：《成都航空职业技术学院学报》2017年第3期56-58,共3页Journal of Chengdu Aeronautic Polytechnic

摘　　要：以南京地铁南北线建设为背景,选用100年超越概率10%时的南京人工地震波作为基岩输入地震动,用有限元软件ABAQUS对地处长江河漫滩软弱地基上的南京地铁车站进行有限元数值模拟。得出南京地铁车站结构在地震动作用下的动内力(动轴力、动剪力、动弯矩)包络图;并给出修建地铁车站对周围场地峰值加速度的影响规律,对进一步研究软弱地基地铁车站抗震性能具有一定的参考价值。According to the construction of the south - north line of Nanjing subway, this paper selects Nanjing artifi- cial seismic wave with exceedanee probability of 10% in 100 years as bedrock input seismic oscillation, adopts ABAQUS software perform a finite element digital simulation of Nanjing subway station on the soft site of Yangtze River floodplain, obtains an envelope diagram of dynamic internal forces such as dynamic axial force, dynamic shearing force and dynamical bending moment by seismic oscillation in the structure of Nanjing Subway Station, and points out the influence rules of peak acceleration in the site around by the construction of a subway station, which can give references for the further re- search on the seismic performance of a subway station on the soft site.

关 键 词：地铁车站地震反应 软弱地基 结构动内力 ABAQUS软件 

分 类 号：TB115[理学—数学]