Computers and Concrete

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Seismic evaluation of isolated skewed bridges using fragility function methodology

  • Bayat, M. (Young Researchers and Elite Club, Roudehen Branch, Islamic Azad University) ;
  • Daneshjoo, F. (Department of Civil and Environmental Engineering, Tarbiat Modares University) ;
  • Nistico, N. (Department of Structural and Geotechnical Engineering, Universita degli Studi di Roma "La Sapienza") ;
  • Pejovic, J. (Faculty of Civil Engineering, University of Montenegro)
  • Received : 2017.01.20
  • Accepted : 2017.05.13
  • Published : 2017.10.25
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Abstract

A methodology, based on fragility functions, is proposed to evaluate the seismic performance of seismic isolated $45^{\circ}$ skewed concrete bridge: 1) twelve types of seismic isolation devices are considered based on two different design parameters 2) fragility functions of a three-span bridge with and without seismic isolation devices are analytically evaluated based on 3D nonlinear incremental dynamic analyses which seismic input consists of 20 selected ground motions. The optimum combinations of isolation device design parameters are identified comparing, for different limit states, the performance of 1) the Seismic Isolated Bridges (SIB) and 2) Not Seismic Isolated Bridge (NSIB) designed according to the AASHTO standards.

Keywords

References

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