DOI QR코드

DOI QR Code

Seismic responses of composite bridge piers with CFT columns embedded inside

  • Qiu, Wenliang (School of civil engineering, Dalian University of Technology) ;
  • Jiang, Meng (School of hydraulic engineering, Dalian University of Technology) ;
  • Pan, Shengshan (School of civil engineering, Dalian University of Technology) ;
  • Zhang, Zhe (School of civil engineering, Dalian University of Technology)
  • 투고 : 2012.01.10
  • 심사 : 2013.07.19
  • 발행 : 2013.09.25

초록

Shear failure and core concrete crushing at plastic hinge region are the two main failure modes of bridge piers, which can make repair impossible and cause the collapse of bridge. To avoid the two types of failure of pier, a composite pier was proposed, which was formed by embedding high strength concrete filled steel tubular (CFT) column in reinforced concrete (RC) pier. Through cyclic loading tests, the seismic performances of the composite pier were studied. The experimental results show that the CFT column embedded in composite pier can increase the flexural strength, displacement ductility and energy dissipation capacity, and decrease the residual displacement after undergoing large deformation. The analytical analysis is performed to simulate the hysteretic behavior of the composite pier subjected to cyclic loading, and the numerical results agree well with the experimental results. Using the analytical model and time-history analysis method, seismic responses of a continuous girder bridge using composite piers is investigated, and the results show that the bridge using composite piers can resist much stronger earthquake than the bridge using RC piers.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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피인용 문헌

  1. Finite element study the seismic behavior of connection to replace the continuity plates in (NFT/CFT) steel columns vol.21, pp.1, 2016, https://doi.org/10.12989/scs.2016.21.1.073
  2. Experimental study discussion of the seismic behavior on new types of internal/external stiffeners in rigid beam-to-CFST/HSS column connections vol.136, 2017, https://doi.org/10.1016/j.conbuildmat.2017.01.032
  3. Behaviour of steel tube reinforced-concrete short bridge columns under cyclic loading vol.70, pp.22, 2018, https://doi.org/10.1680/jmacr.17.00332
  4. Seismic behavior of steel tube reinforced concrete bridge columns vol.28, pp.1, 2013, https://doi.org/10.12989/scs.2018.28.1.063