[1]ZHANG Jiwei,DU Ke.Seismic Resilience Assessment of Long-span,Deck Concrete-filled Steel Tube Arch Bridge[J].Journal of Seismological Research,2024,47(01):37-50.[doi:10.20015/j.cnki.ISSN1000-0666.2024.0029
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Seismic Resilience Assessment of Long-span,Deck Concrete-filled Steel Tube Arch Bridge
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
47
Number of periods:
2024 01
Page number:
37-50
Column:
Public date:
2023-11-20
- Title:
- Seismic Resilience Assessment of Long-span,Deck Concrete-filled Steel Tube Arch Bridge
- Keywords:
- long-span; deck CFST arch bridge; nonlinear structural response analysis; performance group; seismic resilience index; seismic resilience rating
- CLC:
- P315.9; U448.22
- DOI:
- 10.20015/j.cnki.ISSN1000-0666.2024.0029
- Abstract:
- As a common type of highway bridge in China,the long-span,deck concrete-filled steel tube(CFST)arch bridge is greatly affected by earthquake disasters.In order to evaluate its seismic resilience subjected to different earthquake intensities,a 300-meter long,deck CFST arch bridge was studied.Midas/Civil software was used to establish the finite element model of the structure to analyze the structure's nonlinear structural response.The “fragility group” and the “performance group” of the arch bridge were defined,to analyze the bridge's seismic fragility.The seismic resilience indexes for the bridge—maintenance cost and maintenance time—were evaluated respectively according to different ground motion intensities.The method and basis of seismic resilience rating for arch bridges were given according to the Standard for Seismic Resilience Assessment of Buildings(GB/T 38591-2020f).The seismic resilience of the bridge is rated as “one star”,in this case the maintenance time is the key index affecting the comprehensive seismic resilience grade of the bridge.Meanwhile,the structural components significantly influence the seismic resilience of the bridge.
- References:
- -
- Similar References:
Memo
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Last Update:
2023-12-20