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FRACAS: A capacity spectrum approach for seismic fragility assessment including record-to-record variability
Abstract : This paper presents a new approach for the derivation of fragility curves, named FRAgility through Capacity spectrum ASsessment (FRACAS). FRACAS adapts the capacity spectrum assessment method and uses inelastic response spectra derived from earthquake ground motion accelerograms to construct fragility curves. Following a description of the FRACAS approach, the paper compares the predicted maximum interstory drift (MIDR) response obtained from FRACAS and nonlinear time history analyses (NLTHA) for two case-study buildings subjected to 150 natural accelerograms. FRACAS is seen to represent well the response of both case-study structures when compared to NLTHA. Observations are made as to the sensitivity of the derived fragility curves to assumptions in the capacity spectrum assessment and fragility curve statistical model fitting. The paper also demonstrates the ability of FRACAS to capture inelastic record-to-record variability and to properly translate this into the resulting fragility curves.
Littérature citée [38 références]
https://hal-brgm.archives-ouvertes.fr/hal-01685882
Contributeur : Anne-Marie Pouget Connectez-vous pour contacter le contributeur
Soumis le : vendredi 23 février 2018 - 16:25:18
Dernière modification le : mercredi 11 mai 2022 - 10:44:16
Archivage à long terme le : : vendredi 25 mai 2018 - 04:03:37
Contributeur : Anne-Marie Pouget Connectez-vous pour contacter le contributeur
Soumis le : vendredi 23 février 2018 - 16:25:18
Dernière modification le : mercredi 11 mai 2022 - 10:44:16
Archivage à long terme le : : vendredi 25 mai 2018 - 04:03:37
Fichier
fracas.pdf
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