Structural Engineering and Mechanics

  • 제61권5호
  • /
  • Pages.645-655
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  • 2017
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic applicability of a long-span railway concrete upper-deck arch bridge with CFST rigid skeleton rib

  • Shao, Changjiang (School of Civil Engineering, Key Laboratory of Ministry of Education of Traffic Tunnel Engineering, Southwest Jiaotong University) ;
  • Ju, Jiann-wen Woody (Department of Civil and Environmental Engineering, University of California) ;
  • Han, Guoqing (China Railway Eryuan Engineering Group Co. Ltd.) ;
  • Qian, Yongjiu (School of Civil Engineering, Key Laboratory of Ministry of Education of Traffic Tunnel Engineering, Southwest Jiaotong University)
  • 투고 : 2015.12.12
  • 심사 : 2016.12.06
  • 발행 : 2017.03.10
⟨ 이전 논문 다음 논문 ⟩

초록

To determine the seismic applicability of a long-span railway concrete upper-deck arch bridge with concrete-filled steel-tube (CFST) rigid skeleton ribs, some fundamental principles and seismic approaches for long-span bridges are investigated to update the design methods in the current Code for Seismic Design of Railway Engineering of China. Ductile and mixed isolation design are investigated respectively to compare the structural seismic performances. The flexural moment and plastic rotation demands and capacities are quantified to assess the seismic status of the ductile components. A kind of triple friction pendulum (TFP) system and lead-plug rubber bearing are applied simultaneously to regularize the structural seismic demands. The numerical analysis shows that the current ductile layout with continuous rigid frame approaching spans should be strengthened to satisfy the demands of rare earthquakes. However, the mixed isolation design embodies excellent seismic performances for the continuous girder approaching span of this railway arch bridge.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Fund Committee of China

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피인용 문헌

  1. The effect of base isolation and tuned mass dampers on the seismic response of RC high-rise buildings considering soil-structure interaction vol.17, pp.4, 2017, https://doi.org/10.12989/eas.2019.17.4.425
  2. Reaction Spectrum Comparative Analysis of Seismic Performance of 62 m CFST Bridge with Curved-String Truss before and after Reinforcement vol.2020, pp.None, 2017, https://doi.org/10.1155/2020/4536365
  3. Seismic performance and design of bridge piers with rocking isolation vol.73, pp.4, 2020, https://doi.org/10.12989/sem.2020.73.4.447
  4. Experimental study and application of manufactured sand self-compacting concrete in concrete-filled-steel-tube arch bridge: A case study vol.15, pp.None, 2017, https://doi.org/10.1016/j.cscm.2021.e00718