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Fragility analysis and seismic record selection / G. P. Cimellaro in Journal of structural engineering, Vol. 137 N° 3 (Mars 2011) 

Public ISBD [article]  in Journal of structural engineering > Vol. 137 N° 3 (Mars 2011) . - pp. 379-390 Titre : Fragility analysis and seismic record selection Type de document : texte imprimé Auteurs : G. P. Cimellaro, Auteur ; Reinhorn, A. M., Auteur ; A. D’Ambrisi, Auteur Année de publication : 2011 Article en page(s) : pp. 379-390 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Damage  Fragility  functions  Intensity  measure  Nonlinear  analysis  Record  selection  Uniform  hazard  spectrum  Spectrum  matching  Stationary  simulation  Synthetic  earthquakes  Acceleration  scaling  Accelerograms  matching  Inelastic  demand Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper explores the influence of spectrum-matched and amplitude-scaled ground motions on the development of fragility functions for structures. The quantification of the influence of these two types of ensembles on ground motions in predicting demands of structural and nonstructural systems is addressed. Moreover, the paper investigates the sensitivity of number of accelerograms in the ensembles, which produces consistent results in the nonlinear analyses. A multidegree-of-freedom (MDOF) inelastic shear-type building is used in the evaluations. The median and the dispersion of different types of damage measures are evaluated at each story and the effect of different levels of nonlinearity is investigated. Fragility functions are developed for structural and nonstructural components using the maximum likelihood method from the response generated with the selected ground motions. The sufficient number of ground motions necessary in the estimation of the response parameters and on the evaluation of the fragility functions is presented herein. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i3/p379_s1?isAuthorized=no [article] Fragility analysis and seismic record selection [texte imprimé] / G. P. Cimellaro, Auteur ; Reinhorn, A. M., Auteur ; A. D’Ambrisi, Auteur . - 2011 . - pp. 379-390. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 137 N° 3 (Mars 2011) . - pp. 379-390 Mots-clés : Damage  Fragility  functions  Intensity  measure  Nonlinear  analysis  Record  selection  Uniform  hazard  spectrum  Spectrum  matching  Stationary  simulation  Synthetic  earthquakes  Acceleration  scaling  Accelerograms  matching  Inelastic  demand Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper explores the influence of spectrum-matched and amplitude-scaled ground motions on the development of fragility functions for structures. The quantification of the influence of these two types of ensembles on ground motions in predicting demands of structural and nonstructural systems is addressed. Moreover, the paper investigates the sensitivity of number of accelerograms in the ensembles, which produces consistent results in the nonlinear analyses. A multidegree-of-freedom (MDOF) inelastic shear-type building is used in the evaluations. The median and the dispersion of different types of damage measures are evaluated at each story and the effect of different levels of nonlinearity is investigated. Fragility functions are developed for structural and nonstructural components using the maximum likelihood method from the response generated with the selected ground motions. The sufficient number of ground motions necessary in the estimation of the response parameters and on the evaluation of the fragility functions is presented herein. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i3/p379_s1?isAuthorized=no