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http://dx.doi.org/10.12989/cac.2017.20.4.419

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)
Publication Information
Computers and Concrete / v.20, no.4, 2017 , pp. 419-427 More about this Journal
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
skewed bridge; seismic isolation device; fragility function methodology; incremental dynamic analysis (IDA); isolation device design parameters;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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