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A platform for research: civil engineering, architecture and urbanism
Response characteristics of an atrium subway station subjected to bidirectional ground shaking
Abstract The stiffness distribution of an atrium subway station with zero buried depth spatially varies when columns in the first level underground are removed and lateral beams replace the middle part of the floor slabs. It is pertinent to the mechanism and effects of multidirectional ground shaking on such structures. In this paper, the response characteristics of an atrium subway station subjected to bidirectional ground motions in a shaking table test were presented. Under horizontal seismic shaking, the structure, without a soil cover, showed a non-negligible rocking mode coupled with the well-known racking of the structure. Under vertical seismic shaking, the lateral beams, without supporting columns, demonstrated an obvious bending vibration associated with an overall up and downward movement. Overall, the horizontal component contributed more to dynamic response of the structure than the vertical component.
Highlights A atrium station with zero buried depth is studied by shaking table test. Rocking couples racking of the structure under the horizontal seismic shaking. Bending vibration of the lateral beam occurs under vertical motions. Ends of the top beam are the weakest part of the structure.
Response characteristics of an atrium subway station subjected to bidirectional ground shaking
Abstract The stiffness distribution of an atrium subway station with zero buried depth spatially varies when columns in the first level underground are removed and lateral beams replace the middle part of the floor slabs. It is pertinent to the mechanism and effects of multidirectional ground shaking on such structures. In this paper, the response characteristics of an atrium subway station subjected to bidirectional ground motions in a shaking table test were presented. Under horizontal seismic shaking, the structure, without a soil cover, showed a non-negligible rocking mode coupled with the well-known racking of the structure. Under vertical seismic shaking, the lateral beams, without supporting columns, demonstrated an obvious bending vibration associated with an overall up and downward movement. Overall, the horizontal component contributed more to dynamic response of the structure than the vertical component.
Highlights A atrium station with zero buried depth is studied by shaking table test. Rocking couples racking of the structure under the horizontal seismic shaking. Bending vibration of the lateral beam occurs under vertical motions. Ends of the top beam are the weakest part of the structure.
Response characteristics of an atrium subway station subjected to bidirectional ground shaking
Zhao, Huiling (author) / Yuan, Yong (author) / Ye, Zhiming (author) / Yu, Haitao (author) / Zhang, Zhiming (author)
2019-06-22
Article (Journal)
Electronic Resource
English
Seismic response characteristics of multi-story subway station through shaking table test
| SAGE Publications | 2021