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作者:

Han, Qiang (Han, Qiang.) (学者:韩强) | Dong, Huihui (Dong, Huihui.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力) | Zhou, Yulong (Zhou, Yulong.)

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摘要:

To investigate the seismic pounding response of long-span bridges with high-piers under strong ground motions, shaking table tests were performed on a 1/10-scaled bridge model consisting of three continuous spans with rigid frames and one simply-supported span. The seismic pounding responses of this bridge model under different earthquake excitations including the uniform excitation and the traveling wave excitations were experimentally studied. The influence of dampers to the seismic pounding effects at the expansion joints was analyzed through nonlinear dynamic analyses in this research. The seismic pounding effects obtained from numerical analyses of the bridge model are in favorable agreement with the experimental results. Seismic pounding effect of bridge superstructures is dependent on the structural dynamic properties of the adjacent spans and characteristics of ground motions. Moreover, supplemental damping can effectively mitigate pounding effects of the bridge superstructures, and reduce the base shear forces of the bridge piers.

关键词:

traveling wave excitation shaking table test isolation device nonlinear analysis seismic pounding

作者机构:

  • [ 1 ] [Han, Qiang]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Han, Qiang]Beijing Collaborat Innovat Ctr Metropolitan Trans, Beijing 100124, Peoples R China

通讯作者信息:

  • 韩强

    [Han, Qiang]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

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来源 :

EARTHQUAKES AND STRUCTURES

ISSN: 2092-7614

年份: 2015

期: 5

卷: 9

页码: 1029-1044

1 . 5 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:174

JCR分区:3

中科院分区:4

被引次数:

WoS核心集被引频次: 7

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

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