Earthquakes and Structures

  • 제16권4호
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  • Pages.391-399
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  • 2019
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Cumulative deformation of high-speed railway bridge pier under repeated earthquakes

  • Gou, Hongye (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University) ;
  • Leng, Dan (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University) ;
  • Bao, Yi (Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology) ;
  • Pu, Qianhui (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University)
  • 투고 : 2018.06.05
  • 심사 : 2019.02.24
  • 발행 : 2019.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

Residual deformation of high-speed railway bridge piers is cumulative under repeated earthquakes, and influences the safety and ride comfort of high-speed trains. This paper investigates the effects of the peak ground acceleration, longitudinal reinforcement ratio, and axial compression ratio on the cumulative deformation through finite element analysis. A simply-supported beam bridge pier model is established using nonlinear beam-column elements in OpenSees, and validated against a shaking table test. Repeated earthquakes were input in the model. The results show that the cumulative deformation of the bridge piers under repeated earthquakes increases with the peak ground acceleration and the axial compression ratio, and decreases with the longitudinal reinforcement ratio.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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