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作者:

Chen, Guoxing (Chen, Guoxing.) | Zuo, Xi (Zuo, Xi.) | Wang, Zhihua (Wang, Zhihua.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力) | Sun, Tian (Sun, Tian.) | Hu, Qingxing (Hu, Qingxing.)

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摘要:

Considering both the near-fault and far-field seismic motions for a subway station structure of three stories and three spans in liquefiable ground, a series of shaking table experiments on the dynamic interaction between soil and underground structure is conducted. The dynamic damage behavior of subway station structures in liquefiable foundation under near-fault and far-field motions are analyzed, with analyses of the acceleration, lateral displacement and dynamic strain responses of the structure. It is found that the ground motion characteristics have great influence on the acceleration response and the values of acceleration are different at different heights of the side walls. In addition, the acceleration responses of the middle and lower part of the side wall are more intense than other locations. The peak acceleration responses of certain parts of the structure are more significant than the peak acceleration response of the soils. The strain response of the interior column is the most remarkable, while the side walls are second, and the slab response is the weakest. The interior column in the bottom story exhibits a larger strain response than the top story and other intermediate stories. The concept of the damage level is introduced to measure the degree of the destruction under seismic motions. The level of damage of the bottom of columns of the bottom part of the station structure is most serious under ground motions.

关键词:

Acceleration Dynamic response Railroads Railroad stations Seismology Subway stations Underground structures

作者机构:

  • [ 1 ] [Chen, Guoxing]Nanjing University of Technology, Nanjing 210009, China
  • [ 2 ] [Zuo, Xi]Nanjing University of Technology, Nanjing 210009, China
  • [ 3 ] [Wang, Zhihua]Nanjing University of Technology, Nanjing 210009, China
  • [ 4 ] [Du, Xiuli]Beijing University of Technology, Beijing 100022, China
  • [ 5 ] [Sun, Tian]Nanjing University of Technology, Nanjing 210009, China
  • [ 6 ] [Hu, Qingxing]Nanjing University of Technology, Nanjing 210009, China

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来源 :

China Civil Engineering Journal

ISSN: 1000-131X

年份: 2010

期: 12

卷: 43

页码: 120-126

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