Earthquakes and Structures

  • 제13권6호
  • /
  • Pages.599-611
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  • 2017
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic fragility of a typical bridge using extrapolated experimental damage limit states

  • Liu, Yang (School of Civil Engineering, Harbin Institute of Technology) ;
  • Paolacci, Fabrizio (Department of Engineering, Roma Tre University) ;
  • Lu, Da-Gang (School of Civil Engineering, Harbin Institute of Technology)
  • 투고 : 2017.10.09
  • 심사 : 2018.01.16
  • 발행 : 2017.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper improves seismic fragility of a typical steel-concrete composite bridge with the deck-to-pier connection joint configuration at the concrete crossbeam (CCB). Based on the quasi-static test on a typical steel-concrete composite bridge model under the SEQBRI project, the damage states for both of the critical components, the CCB and the pier, are identified. The finite element model is developed, and calibrated using the experimental data to model the damage states of the CCB and the bridge pier as observed from the experiment of the test specimen. Then the component fragility curves for both of the CCB and the pier are derived and combined to develop the system fragility curves of the bridge. The uncertainty associated with the mean system fragility has been discussed and quantified. The study reveals that the CCB is more vulnerable than the pier for certain damage states and the typical steel-concrete composite bridge with CCB exhibits desirable seismic performance.

키워드

과제정보

연구 과제번호 : Performance-Based Earthquake Engineering Analysis of Short-Medium Span Steel-Concrete Composite Bridges

연구 과제 주관 기관 : SEQBRI, National Science Foundation of China, Ministry of Science and Technology of China

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