首页 | 本学科首页   官方微博 | 高级检索  
     


Evaluation of Dynamic Soil-Structure Interaction and Dynamic Seismic Soil Pressures Acting on It Subjected to Strong Earthquake Motions
Authors:CHE Ai-lan  IWATATE Takahiro  GE Xiu-run
Affiliation:1. School of Naval Architecture,Ocean and Civil Eng.,Shanghai Jiaotong Univ.,Shanghai 200030,China
2. Civil and Environmental Eng.,Tokyo Metropolitan Univ.,Tokyo 192-0397,Japan
Abstract:In order to clarify the damage mechanism of the subway structure, the dynamic soil-structure interaction and the dynamic forces acting on the structure, a series of shaking table tests and simulation analyses were performed. The seismic response of the structure and the dynamic forces acting on the structure due to sinusoidal and random waves were investigated with special attention to the dynamic soil-structure interaction. The result shows that the compression seismic soil pressures and extension seismic soil pressures simultaneously act on the sidewalls, and big shear stress also acts on the ceiling slab due to horizontal excitation. The seismic soil pressure could be approximated to hyperbola curve, and reached a peak value with increase of the shear strain of the model ground. In addition, a slide and exfoliation phenomenon between the structure and the surrounding ground was simulated, using the nonlinear analyses. The foundation is provided for amending the calculation method of seismic soil pressure and improving the anti-earthquake designing level of underground structure.
Keywords:subway structure dynamic seismic soil pressure dynamic soil-structure interaction shaking table tests dynamic analyses nonlinear characteristics
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号