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作者:

Du, Xiu-Li (Du, Xiu-Li.) (学者:杜修力) | Zhou, Yu-Long (Zhou, Yu-Long.) | Han, Qiang (Han, Qiang.) (学者:韩强) | Jia, Zhen-Lei (Jia, Zhen-Lei.)

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摘要:

Rocking philosophy has advantages to maintain a preferable post-earthquake serviceability as an alternative of seismic resistant systems. This article presents an experimental study on the seismic behavior of a rocking bridge with freestanding columns capped with a freely supported deck. A 1/10 scaled, single-span double-column freestanding bridge was constructed and tested on a shaking table. The experimental results showed that the bridge model could undergo large rocking with enough stability under earthquakes and presented excellent post-earthquake resilience after earthquakes with limited damage and negligible residual displacement. The rocking bridge model also exhibited expected isolation efficiency, which increases as the level of excitations becomes more severe. In addition, an analytical model based on multi-block rocking mechanisms was used to calculate the displacement response. Compared with the experimental results, this analytical model well predicts the peak displacement of the rocking bridge model.

关键词:

seismic response double-column bent shaking table test freestanding rocking bridge seismic isolation

作者机构:

  • [ 1 ] [Du, Xiu-Li]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhou, Yu-Long]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Han, Qiang]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Jia, Zhen-Lei]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 杜修力

    [Du, Xiu-Li]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

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来源 :

ADVANCES IN STRUCTURAL ENGINEERING

ISSN: 1369-4332

年份: 2019

期: 15

卷: 22

页码: 3222-3233

2 . 6 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:136

JCR分区:3

被引次数:

WoS核心集被引频次: 12

SCOPUS被引频次: 20

ESI高被引论文在榜: 0 展开所有

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