Structural Engineering and Mechanics

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Seismic performance assessment of reinforced concrete bridge piers supported by laminated rubber bearings

  • Kim, T.H. (Civil Engineering Research Team, Daewoo Institute of Construction Technology) ;
  • Kim, Y.J. (Civil Engineering Research Team, Daewoo Institute of Construction Technology) ;
  • Shin, H.M. (Department of Civil and Environmental Engineering, Sungkyunkwan University)
  • Received : 2006.12.18
  • Accepted : 2008.03.31
  • Published : 2008.06.20
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Abstract

This paper presents a nonlinear finite element procedure accounting for the effects of geometric as well as material nonlinearities for reinforced concrete bridge piers supported by laminated rubber bearings. Reinforced concrete bridge piers supported by laminated rubber bearings and carrying a cyclic load were analyzed by using a special purpose, nonlinear finite element program, RCAHEST. For reinforced concrete, the proposed robust nonlinear material model captures the salient response characteristics of the bridge piers under cyclic loading conditions and addresses with the influence of geometric nonlinearity on post-peak response of the bridge piers by transformations between local and global systems. Seismic isolator element to predict the behaviors of laminated rubber bearings is also developed. The seismic performance of reinforced concrete bridge piers supported by laminated rubber bearings is assessed analytically. The results show good correlation between the experimental findings and numerical predictions, and demonstrate the reliability and robustness of the proposed analytical model. Additionally, the studies and discussions presented in this investigation provide an insight into the key behavioral aspects of reinforced concrete bridge piers supported by laminated rubber bearings.

Keywords

References

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