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Détail de l'auteur
Auteur Justine Bonenfant
Documents disponibles écrits par cet auteur
Affiner la rechercheDamage mechanics applied to the seismic behavior of concrete structures / Shahrokh Ghavamian in European journal of environmental and civil engineering, Vol. 14 N° 6-7 (Juin 2010)
[article]
in European journal of environmental and civil engineering > Vol. 14 N° 6-7 (Juin 2010) . - pp. 839-854
Titre : Damage mechanics applied to the seismic behavior of concrete structures Type de document : texte imprimé Auteurs : Shahrokh Ghavamian, Auteur ; Ludovic Jason, Auteur ; Justine Bonenfant, Auteur Année de publication : 2011 Article en page(s) : pp. 839-854 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Seismic evaluation Reinforced concrete Structures Nonlinear behavior Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The seismic behavior of reinforced concrete structures is generally evaluated through modal spectral approaches, based on linear elastic analysis. In the case of seismic reevaluation of existing structures using traditional methods, since the nonlinear behavior of materials is not taken into account, these techniques often lead to an overestimation of the needs in reinforcement. In this contribution, it is proposed to highlight how including nonlinearity in the mechanical behavior of concrete and steel can improve the seismic evaluation of RC structures. For this purpose, a pushover technique is applied on an office building. Contrary to a classical approach, the progression of the failure mode and the mechanical degradation can be obtained and used to accurately elaborate the best retrofitting strategy. Some improvements of the constitutive laws are nevertheless needed if the use of this type of approaches is to be extended to more complex structures. However, the maturity of most constitutive models is not enough to allow industrial applications. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp [article] Damage mechanics applied to the seismic behavior of concrete structures [texte imprimé] / Shahrokh Ghavamian, Auteur ; Ludovic Jason, Auteur ; Justine Bonenfant, Auteur . - 2011 . - pp. 839-854.
Génie Civil
Langues : Anglais (eng)
in European journal of environmental and civil engineering > Vol. 14 N° 6-7 (Juin 2010) . - pp. 839-854
Mots-clés : Seismic evaluation Reinforced concrete Structures Nonlinear behavior Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The seismic behavior of reinforced concrete structures is generally evaluated through modal spectral approaches, based on linear elastic analysis. In the case of seismic reevaluation of existing structures using traditional methods, since the nonlinear behavior of materials is not taken into account, these techniques often lead to an overestimation of the needs in reinforcement. In this contribution, it is proposed to highlight how including nonlinearity in the mechanical behavior of concrete and steel can improve the seismic evaluation of RC structures. For this purpose, a pushover technique is applied on an office building. Contrary to a classical approach, the progression of the failure mode and the mechanical degradation can be obtained and used to accurately elaborate the best retrofitting strategy. Some improvements of the constitutive laws are nevertheless needed if the use of this type of approaches is to be extended to more complex structures. However, the maturity of most constitutive models is not enough to allow industrial applications. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp