A methodology, based on fragility functions, is proposed to evaluate the seismic performance of seismic isolated 45° 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.

Seismic evaluation of isolated skewed bridges using fragility function methodology / Bayat, M.; Daneshjoo, F.; Nisticò, N.; Pejovic, J.. - In: COMPUTERS AND CONCRETE. - ISSN 1598-8198. - ELETTRONICO. - 20:4(2017), pp. 419-427. [10.12989/cac.2017.20.4.419]

Seismic evaluation of isolated skewed bridges using fragility function methodology

Nisticò, N.;
2017

Abstract

A methodology, based on fragility functions, is proposed to evaluate the seismic performance of seismic isolated 45° 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.
2017
Fragility function methodology; Incremental dynamic analysis (IDA); Isolation device design parameters; Seismic isolation device; Skewed bridge; Computational Mechanics
01 Pubblicazione su rivista::01a Articolo in rivista
Seismic evaluation of isolated skewed bridges using fragility function methodology / Bayat, M.; Daneshjoo, F.; Nisticò, N.; Pejovic, J.. - In: COMPUTERS AND CONCRETE. - ISSN 1598-8198. - ELETTRONICO. - 20:4(2017), pp. 419-427. [10.12989/cac.2017.20.4.419]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1020094
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