Structures and infrastructures located in seismic regions are continuously exposed to the earthquake hazard and during their design lifetime may be subjected to multiple earthquakes, including multiple main shocks or main shock-aftershock sequences. Different probabilistic methodologies have been recently proposed to evaluate the performance of structures under repeated earthquake sequences of different intensity. These include the method based on a Markovian modelling of seismic damage accumulation, and the method based on a probabilistic seismic demand model under multiple earthquake events. These methods are applied to evaluate the probabilistic damage accumulation of a reinforced concrete bridge pier modelled in OPENSEES, under a seismic scenario based on the Atkinson-Silva stochastic ground motion model. The obtained results are compared to those obtained by applying a pure Montecarlo approach to evaluate the accuracy and efficiency of the proposed methods.

Risk assessment of bridge’s piers subjected to multiple earthquakes / DI PILATO, Deborah; Enrico, Tubaldi; Castaldo, Paolo; Christian, Malaga-Chuquitaype. - ELETTRONICO. - (2019), pp. 1-5. (Intervento presentato al convegno Atti del XVIII Convegno ANIDIS L'ingegneria Sismica in Italia : Ascoli Piceno, 15-19 settembre 2019 tenutosi a Ascoli Piceno nel 15-19 settembre 2019).

Risk assessment of bridge’s piers subjected to multiple earthquakes

DI PILATO, DEBORAH;Paolo Castaldo;
2019

Abstract

Structures and infrastructures located in seismic regions are continuously exposed to the earthquake hazard and during their design lifetime may be subjected to multiple earthquakes, including multiple main shocks or main shock-aftershock sequences. Different probabilistic methodologies have been recently proposed to evaluate the performance of structures under repeated earthquake sequences of different intensity. These include the method based on a Markovian modelling of seismic damage accumulation, and the method based on a probabilistic seismic demand model under multiple earthquake events. These methods are applied to evaluate the probabilistic damage accumulation of a reinforced concrete bridge pier modelled in OPENSEES, under a seismic scenario based on the Atkinson-Silva stochastic ground motion model. The obtained results are compared to those obtained by applying a pure Montecarlo approach to evaluate the accuracy and efficiency of the proposed methods.
2019
9788833392561
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2776621
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