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作者:

Wang, Piguang (Wang, Piguang.) | Zhao, Mi (Zhao, Mi.) | Zhang, Bu (Zhang, Bu.) | Xu, Haibin (Xu, Haibin.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力)

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EI Scopus SCIE

摘要:

An increasing number of pile foundation with large diameter are utilized in civil and offshore engineering in areas of active seismicity. This paper focuses on studying the effects of rocking impedance and soil shear stress of the free-field on the horizontal seismic responses of pile foundation. A substructure model in frequency domain is utilized to simulate pile-soil dynamic interaction during horizontal earthquakes. The soil is considered as viscoelastic media and the pile considered as one-dimensional (1D) rod modelled by Timoshenko beam theory. First, the analytical expressions of the horizontal and rocking impedances for an end-bearing pile are obtained. Further, the earthquake input method for 1D finite element analysis of pile-soil interaction on rigid bedrock during horizontal earthquakes are developed, where the soil shear stress of the free-field is considered. Finally, the proposed model is used to investigate the effects of rocking impedance and soil shear stress of the free-field on the seismic response of the pile with different soil and pile parameters.

关键词:

Rocking impedance Substructure method Horizontal earthquake Shear stress of the free-field Pile-soil interaction

作者机构:

  • [ 1 ] [Wang, Piguang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Zhao, Mi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Bu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Xu, Haibin]China Three Gorges Corp, Beijing 100038, Peoples R China

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来源 :

COMPUTERS AND GEOTECHNICS

ISSN: 0266-352X

年份: 2022

卷: 150

5 . 3

JCR@2022

5 . 3 0 0

JCR@2022

ESI学科: COMPUTER SCIENCE;

ESI高被引阀值:46

JCR分区:1

中科院分区:1

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WoS核心集被引频次: 2

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