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作者:

Song, Jia (Song, Jia.) | Yang, Yu (Yang, Yu.) | Jia, Kemin (Jia, Kemin.) | Dou, Pengfei (Dou, Pengfei.) | Ma, Xuelian (Ma, Xuelian.) | Shen, Haohao (Shen, Haohao.)

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EI Scopus SCIE

摘要:

Based on the shaking table test of the liquefiable soil-piles-superstructure system, the liquefaction process and seismic failure mode of the liquefiable site with an overlying non-liquefiable soil layer, as well as the instability or damage mechanism of a low pile cap-pile group-superstructure system are analyzed by a two-dimensional finite element model. The model considers the post-liquefaction shear deformation of sand, the interface models for the pile and cap with the liquefiable and non-liquefiable soil, and the interface model between the liquefiable and non-liquefiable soil to account for the discontinuity of interface deformation. The typical calculation results, including the excess pore pressures, accelerations, displacements of soil, and bending mo-ments of the piles, are compared with the experimental results to verify the developed models and reveal the effects of site liquefaction and the soil-structure dynamic interaction on the seismic responses and instability mechanisms of the piles-superstructure system.

关键词:

Soil-structure dynamic interaction Liquefiable soil-piles-superstructure system Shaking table test Instability mechanism Finite element analysis

作者机构:

  • [ 1 ] [Song, Jia]North China Univ Technol, Sch Civil Engn, Beijing 100144, Peoples R China
  • [ 2 ] [Yang, Yu]North China Univ Technol, Sch Civil Engn, Beijing 100144, Peoples R China
  • [ 3 ] [Ma, Xuelian]North China Univ Technol, Sch Civil Engn, Beijing 100144, Peoples R China
  • [ 4 ] [Shen, Haohao]North China Univ Technol, Sch Civil Engn, Beijing 100144, Peoples R China
  • [ 5 ] [Song, Jia]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Jia, Kemin]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 7 ] [Dou, Pengfei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 8 ] [Song, Jia]Univ Western Ontario, Dept Civil & Environm Engn, London, ON N6A 5B9, Canada
  • [ 9 ] [Jia, Kemin]Univ Western Ontario, Dept Civil & Environm Engn, London, ON N6A 5B9, Canada

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来源 :

STRUCTURES

ISSN: 2352-0124

年份: 2023

卷: 54

页码: 134-152

4 . 1 0 0

JCR@2022

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

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