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Author:

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

Indexed by:

EI Scopus SCIE

Abstract:

Buckling restrained braces (BRBs) are normally incorporated in the beam-column structures to serve as energy dissipation members due to their stable hysteretic behavior. However, the structures equipped with BRBs may suffer excessive residual deformations when they are subjected to large earthquakes. To minimize the residual deformations of the structures with traditional BRBs, a novel self-centering buckling restrained brace (SC-BRB) consisting of a self-centering system and a traditional BRB system is developed in the present study. Large-scale experimental studies are carried out and the hysteretic behavior of the proposed system is compared with the traditional BRB and self-centering brace (SCB). Experimental results show that the SC-BRB exhibits flag-shaped hysteresis response with a small residual deformation and a moderate energy dissipation capability. The proposed SC-BRB is applied to a reinforced concrete (RC) double-column bridge pier for seismic retrofitting. Nonlinear dynamic analyses are carried out to examine its effect on the seismic behavior of the bridge. Numerical results demonstrate that the bridge equipped with SC-BRB system shows much smaller residual displacement compared to the ones equipped with traditional BRB and SCB systems. Numerical results also indicate that SC-BRB system tends to amplify the peak acceleration of the bridge. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword:

Seismic response SC-BRB Residual deformation Double-column bridge structure Hysteretic performance

Author Community:

  • [ 1 ] [Dong, Huihui]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Du, Xiuli]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 ] [Wang, Xiaoqiang]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Hao, Hong]Curtin Univ, Ctr Infrastruct Monitoring & Protect, Perth, WA 6107, Australia
  • [ 6 ] [Bi, Kaiming]Curtin Univ, Ctr Infrastruct Monitoring & Protect, Perth, WA 6107, Australia

Reprint Author's Address:

  • 杜修力

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

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Source :

ENGINEERING STRUCTURES

ISSN: 0141-0296

Year: 2017

Volume: 148

Page: 47-62

5 . 5 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:165

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 118

SCOPUS Cited Count: 135

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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