浅埋地下结构中柱动力响应研究

基金项目:

国家自然科学基金资助项目(40272113);北京市教委科技发展计划资助项目(KM200510005010)。

STUDY ON DYNAMIC RESPONSE OF MID PILLAR OF SHALLOWUNDERGROUND STRUCTURE

1.
1. Beijing Yiqun Engineering Consultation Co.,Ltd.Beijing 100176;
2.
2. College of Architecture and Civil Engineering,Beijing University of Technology Beijing 100022;
3.
3. College of Engineering,Guangdong Ocean University Zhanjiang 524001

摘要: 阪神地震中地铁车站遭受了严重破坏。破坏基本都是由于中柱坍塌引起的,这表明中柱是浅埋地下结构抗震的薄弱环节。运用有限差分软件FLAC对地下结构中柱的内力进行静、动力分析,并对北京地区典型的地铁车站结构缩尺模型在地震作用下的中柱动力响应进行振动台试验验证,揭示中柱受地震力破坏的机理,为地下结构抗震设计提供依据。
- 地下结构 /
- 中柱 /
- 动力响应
Abstract: The Great Hanshin earthquake in Japan brought serious damage to subway station, and the damage was caused by the collapse of mid pillar.It indicates that mid pillar is the weak part in terms of aseismic design of shallow underground structure.The internal force of mid pillar in the static and dynamic state is calculated by FLAC, and the shaking table scaled test of a typical subway station in Beijing is conducted to study the dynamic performance of mid pillar subjected to earthquake, the damage mechanism of mid pillar in earthquake is analyzed, and some rules are provided to aseismic design of shallow underground structures.
- underground structure /
- mid pillar /
- dynamic response