A method is presented for the evaluation of the seismic fragility function of realistic structural systems. The method is based on a preliminary, limited, simulation involving non linear dynamic analyses performed to establish the probabilistic characterization of the demands on the structure, followed by the solution of a system reliability problem with correlated demands and capacities. The results compare favorably well with the fragility obtained by plain Monte Carlo simulation, while the associated computational effort is orders of magnitude lower. The method is demonstrated with an application to a RC bridge structure subjected to both rigid and spatially varying excitation.
Seismic fragility analysis of structural systems / G., Lupoi; Franchin, Paolo; Lupoi, Alessio; Pinto, Paolo Emilio. - ELETTRONICO. - (2004), pp. 1-14. (Intervento presentato al convegno 13th World Conference on Earthquake Engineering tenutosi a Vancouver, BC, Canada).
Seismic fragility analysis of structural systems
FRANCHIN, Paolo;LUPOI, ALESSIO;PINTO, Paolo Emilio
2004
Abstract
A method is presented for the evaluation of the seismic fragility function of realistic structural systems. The method is based on a preliminary, limited, simulation involving non linear dynamic analyses performed to establish the probabilistic characterization of the demands on the structure, followed by the solution of a system reliability problem with correlated demands and capacities. The results compare favorably well with the fragility obtained by plain Monte Carlo simulation, while the associated computational effort is orders of magnitude lower. The method is demonstrated with an application to a RC bridge structure subjected to both rigid and spatially varying excitation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
