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Author:

Dong, Huihui (Dong, Huihui.) | Wang, Chao (Wang, Chao.) | Du, Xiuli (Du, Xiuli.) | Han, Qiang (Han, Qiang.) (Scholars:韩强)

Indexed by:

EI Scopus SCIE

Abstract:

With the development of performance-based seismic design, the residual displacements of structures have become a key factor in determining the post-earthquake functionality and post-earthquake repair cost. However, the factors affecting the residual displacement responses of the RC structure and the corresponding influence laws have not been uniformly understood. This paper systematically investigates the influence of structural properties and ground motion characteristics on the residual displacements of the RC bridge columns, especially the near-fault pulsed ground motion characteristics. To this end, the ultimate quasi-static residual displacement and the dynamic residual displacement are first defined and introduced. Then, Bouc-Wen models and the finite element models of RC columns are selected as target models, and quasi-static analyses and dynamic time history analyses of the two models are performed to obtain the residual displacement responses. The results show that the structural properties and ground motion characteristics significantly affect the residual displacement responses of the RC bridge columns. The influence laws of structural properties on residual displacement responses of different models obtained by using different analysis methods are inconsistent, and it is also differences in the influence laws when using different residual displacement indexes. Furthermore, the residual displacement responses of the RC columns subjected to near-fault pulsed ground motions are larger compared with ground motions without pulses, and they increase with the increasing of the pulse period. The symmetrical pulsed ground motions result in higher residual displacement demands compared with antisymmetric pulsed ground motions.

Keyword:

Residual displacement responses of RC columns Finite element model Bouc-Wen model Near-fault pulsed ground motion Quasi-static analyses Dynamic time history analyses

Author Community:

  • [ 1 ] [Dong, Huihui]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Chao]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 3 ] [Du, Xiuli]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

Reprint Author's Address:

  • [Dong, Huihui]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China

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Source :

BULLETIN OF EARTHQUAKE ENGINEERING

ISSN: 1570-761X

Year: 2024

4 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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