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作者:

Dong, Huihui (Dong, Huihui.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力) | Han, Qiang (Han, Qiang.) (学者:韩强) | Bi, Kaiming (Bi, Kaiming.) | Hao, Hong (Hao, Hong.)

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EI Scopus SCIE

摘要:

Bridges are lifeline structures. The large residual displacement of a bridge structure after a severe earthquake can significantly impede the post-quake rescue activities. The self-centering buckling-restrained brace (SC-BRB) consisting of a self-centering (SC) component and a traditional buckling-restrained brace (BRB) is installed on the reinforced concrete (RC) double-column bridge piers to minimize the residual deformation of the bridge pier in the present study. The hysteretic behavior of the SC-BRB is experimentally investigated firstly, and compared with those of a traditional BRB and a self-centering brace (SCB). SC-BRB, BRB and SCB are then installed onto the RC double-column bridge piers, and large-scale quasi-static cyclic loading tests are performed to evaluate the hysteretic performances of these bridge piers. For comparison, the bridge pier without any brace is also tested. The damage patterns, hysteretic responses, residual displacements and energy dissipation capacities of the piers without and with different braces are analyzed and compared systematically. Experimental results demonstrate the obvious advantages of SC-BRB in increasing the strength and minimizing the residual deformation of the bridge column. Finally, a simplified hysteretic restoring force model for evaluating the hysteretic behavior of the pier with SC-BRB is developed for easy use. The comparisons between the analytical results and experimental data demonstrate the accuracy of the analytical model.

关键词:

RC double-column bridge pier Residual displacement Seismic performance SC-BRB Hysteretic behavior

作者机构:

  • [ 1 ] [Dong, Huihui]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Du, Xiuli]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Han, Qiang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Bi, Kaiming]Curtin Univ, Sch Civil & Mech Engn, Ctr Infrastruct Monitoring & Protect, Bentley, WA 6102, Australia
  • [ 5 ] [Hao, Hong]Curtin Univ, Sch Civil & Mech Engn, Ctr Infrastruct Monitoring & Protect, Bentley, WA 6102, Australia

通讯作者信息:

  • 韩强

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

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来源 :

BULLETIN OF EARTHQUAKE ENGINEERING

ISSN: 1570-761X

年份: 2019

期: 6

卷: 17

页码: 3255-3281

4 . 6 0 0

JCR@2022

ESI学科: GEOSCIENCES;

ESI高被引阀值:123

JCR分区:2

被引次数:

WoS核心集被引频次: 58

SCOPUS被引频次: 63

ESI高被引论文在榜: 0 展开所有

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