Earthquakes and Structures

  • 제16권6호
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  • Pages.641-654
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  • 2019
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Seismic response analysis of isolated offshore bridge with friction sliding bearings

  • Wang, Baofu (Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology) ;
  • Han, Qiang (Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology) ;
  • Jia, Junfeng (Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology)
  • 투고 : 2018.10.18
  • 심사 : 2019.03.26
  • 발행 : 2019.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper investigates the seismic response of a typical non-navigable continuous girder bridge isolated with friction sliding bearings of the Hong Kong-Zhuhai-Macao link projects in China. The effectiveness of the friction pendulum system (FPS) and accuracy of the numerical model were evaluated by a 1/20 scaled bridge model using shaking table tests. Based on the hysteretic properties of friction pendulum system (FPS), double concave friction pendulum (DCFP), and triple friction pendulum system (TFPS), seismic response analyses of isolated bridges with the three sliding-type bearings are systematically carried out considering soil-pile interaction under offshore soft clay conditions. The fast nonlinear analysis (FNA) method and response spectrum are employed to investigate the seismic response of isolated offshore bridge structures. The numerical results show that the implementation of the three sliding-type bearings effectively reduce the base shear and bending moment of the reinforced concrete pier, at the cost of increasing the absolute displacement of the bridge superstructure. Furthermore, the TFPS and DCFP bearings show better isolation effect than FPS bearing for the example continuous girder bridge.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China (NSFC), Central Universities

참고문헌

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피인용 문헌

  1. Study on the Seismic Performance of Different Combinations of Rubber Bearings for Continuous Beam Bridges vol.2020, 2019, https://doi.org/10.1155/2020/8810874
  2. Effect of various aspects on the seismic performance of a curved bridge with HDR bearings vol.19, pp.6, 2019, https://doi.org/10.12989/eas.2020.19.6.427