Seismic isolation effect of a new type of friction pendulum bearing in high-speed railway girder bridge

Wei, Biao; Wan, Kecheng; Wang, Weihao; Hu, Zhangliang; Jiang, Lizhong; Li, Shanshan

doi:10.1016/j.istruc.2023.03.077

Structures

2023

DOI: 10.1016/j.istruc.2023.03.077

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Seismic isolation effect of a new type of friction pendulum bearing in high-speed railway girder bridge

Biao Wei

Kecheng Wan

Weihao Wang

et al.

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2024

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Cited by 21 publications

References 31 publications

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Seismic vulnerability assessment of a railway beam bridge considering brittle failure of the restrainer in a friction pendulum system

Yuan,

Yin,

Deng

et al. 2024

Earthquake Engineering and Resilience

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The restrainers in the friction pendulum system (FPS) may experience brittle failure during an earthquake. Strong nonlinear behavior should be considered to precisely assess the seismic performance of the railway beam bridge under an earthquake. A seismic vulnerability assessment was performed based on a typical simply supported railway beam bridge. Three different models of the FPS in fixed direction were considered: elastic restrainer model, brittle restrainer model, and nonrestrainer model. Through dynamic analysis, the responses of the railway beam bridge were obtained, including the force and displacement of the FPSs, the curvature ductility at the pier bottom, and transverse dislocation at the beam gap. The analysis results pointed out when the earthquake intensity exceeded the fundamental intensity, the brittle failure of the restrainers was very likely to happen. The sudden release of energy introduced a displacement pulse to the FPS. The elastic restrainer model overestimated the force demand and damage probability of the substructures but underestimated the FPS displacement and dislocation at the beam gap. The nonrestrainer model seriously underestimated the force demand of the substructure and the FPS displacement under strong earthquakes. The brittle restrainer model could reflect the nonuniform failure of the restrainers and provide a more accurate estimate of the transverse dislocation at the beam gap.

show abstract

Seismic vulnerability assessment of a railway beam bridge considering brittle failure of the restrainer in a friction pendulum system

Yuan,

Yin,

Deng

et al. 2024

Earthquake Engineering and Resilience

View full text Add to dashboard Cite

show abstract

Multi-stage damping plate-restrained bearings: Concepts, experimental validation, and numerical analysis

Yu,

Zheng,

Fang

et al. 2024

Engineering Structures

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Shaking table test of the seismic performance for railway simply-supported girder bridge isolated by self-centering bearing

Wei,

Tan,

Jiang

et al. 2024

Engineering Structures

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Seismic isolation effect of a new type of friction pendulum bearing in high-speed railway girder bridge

Cited by 21 publications

References 31 publications

Seismic vulnerability assessment of a railway beam bridge considering brittle failure of the restrainer in a friction pendulum system

Seismic vulnerability assessment of a railway beam bridge considering brittle failure of the restrainer in a friction pendulum system

Multi-stage damping plate-restrained bearings: Concepts, experimental validation, and numerical analysis

Shaking table test of the seismic performance for railway simply-supported girder bridge isolated by self-centering bearing

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