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作者:

Chen, Guoxing (Chen, Guoxing.) | Wang, Zhihua (Wang, Zhihua.) | Zuo, Xi (Zuo, Xi.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力) | Gao, Hongmei (Gao, Hongmei.)

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摘要:

In order to investigate the seismic failure characteristics of a structure on the liquefiable ground, a series of shaking table tests were conducted based on a plaster model of a three-story and three-span subway station. The dynamic responses of the structure and ground soil under main shock and aftershock ground motions were studied. The sand boils and waterspouts phenomena, ground surface cracks, and earthquake-induced ground surface settlements were observed in the testing. For the structure, the upward movement, local damage and member cracking were obtained. Under the main shock, there appeared longer liquefaction duration for the ground soil while the pore pressure dissipated slowly. The acceleration amplification effect of the liquefied soil was weakened, and the soil showed a remarkable shock absorption and concentration effect with low frequency component of ground motion. However, under the aftershock, the dissipation of pore pressure in the ground soil became obvious. The peak acceleration of the structure reduced with the buried depth. Dynamic soil pressure on the side wall was smaller in the middle and larger at both ends. The interior column of the model structure was the weakest member. The peak strain and damage degree for both sides of the interior column exhibited an S' type distribution along the height. Moreover, the seismic response of both ground soil and subway station structure exhibited a remarkable spatial effect. The seismic damage development process and failure mechanism of the structure illustrated in this study can provide references for the engineers and researcher. Copyright (c) 2013 John Wiley & Sons, Ltd.

关键词:

failure characteristics shaking table test liquefiable ground subway station structure aftershock main shock

作者机构:

  • [ 1 ] [Chen, Guoxing]Nanjing Univ Technol, Inst Geotech Engn, Nanjing 210009, Jiangsu, Peoples R China
  • [ 2 ] [Wang, Zhihua]Nanjing Univ Technol, Inst Geotech Engn, Nanjing 210009, Jiangsu, Peoples R China
  • [ 3 ] [Zuo, Xi]Nanjing Univ Technol, Inst Geotech Engn, Nanjing 210009, Jiangsu, Peoples R China
  • [ 4 ] [Gao, Hongmei]Nanjing Univ Technol, Inst Geotech Engn, Nanjing 210009, Jiangsu, Peoples R China
  • [ 5 ] [Chen, Guoxing]Beijing Univ Technol, Civil Engn & Earthquake Disaster Prevent Ctr Jian, Beijing 100022, Peoples R China
  • [ 6 ] [Wang, Zhihua]Beijing Univ Technol, Civil Engn & Earthquake Disaster Prevent Ctr Jian, Beijing 100022, Peoples R China
  • [ 7 ] [Zuo, Xi]Beijing Univ Technol, Civil Engn & Earthquake Disaster Prevent Ctr Jian, Beijing 100022, Peoples R China
  • [ 8 ] [Gao, Hongmei]Beijing Univ Technol, Civil Engn & Earthquake Disaster Prevent Ctr Jian, Beijing 100022, Peoples R China
  • [ 9 ] [Du, Xiuli]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100022, Peoples R China

通讯作者信息:

  • [Chen, Guoxing]Nanjing Univ Technol, Inst Geotech Engn, Nanjing 210009, Jiangsu, Peoples R China

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来源 :

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

ISSN: 0098-8847

年份: 2013

期: 10

卷: 42

页码: 1489-1507

4 . 5 0 0

JCR@2022

ESI学科: ENGINEERING;

JCR分区:1

中科院分区:2

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