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Author:

Dong, Huihui (Dong, Huihui.) | Feng, Wenhao (Feng, Wenhao.) | Zheng, Zicheng (Zheng, Zicheng.) | Han, Qiang (Han, Qiang.) (Scholars:韩强) | Du, Xiuli (Du, Xiuli.)

Indexed by:

Scopus SCIE

Abstract:

Reinforced concrete (RC) single-column piers (SCPs) and double-column piers (DCPs) are widely used in highway girder bridges. However, the seismic behavior of conventional RC DCPs has not received sufficient attention. This study aimed to investigate the seismic behavior of DCPs, especially the comparison of the failure mechanism, hysteretic behavior, and dynamic response between SCPs and DCPs. To this end, the critical performance parameters between SCPs and DCPs in the elastic phase were first calculated according to the simplified calculation formulas. Eight 1/3 scaled SCPs and DCPs were then fabricated and tested under quasi-static cyclic loading, and the effective height of the DCPs was twice that of the SCPs. The test results showed that the failure modes and damage mechanisms between the SCPs and DCPs are obviously different. In particular, the plastic damage states at the top and bottom of each column in the DCP were asymmetric, and this behavior was also observed on both sides of each plastic hinge region. Subsequently, the relationship between the performance parameters of SCP and DCP in the plastic phase differed from that of the elastic phase and was not proportional. Existing formulas for calculating the plastic hinge length of SCPs cannot effectively predict DCPs and may even underestimate it. Furthermore, numerical simulations were analyzed to investigate the effects of various design parameters and ground motions on the seismic behavior of the SCPs and DCPs.

Keyword:

Plastic hinge length Quasi-static cyclic loading tests Hysteresis behavior Reinforced concrete (RC) double-column piers RC single-column piers Failure mechanism

Author Community:

  • [ 1 ] [Dong, Huihui]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 2 ] [Feng, Wenhao]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 3 ] [Zheng, Zicheng]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 4 ] [Han, Qiang]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 5 ] [Du, Xiuli]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Du, Xiuli]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China;;

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Source :

JOURNAL OF BRIDGE ENGINEERING

ISSN: 1084-0702

Year: 2024

Issue: 12

Volume: 29

3 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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