On the loading/shear strength coupling in the probabilistic formulation of the limit-state in shear for gravity dams / Claudio Carvajal in European journal of environmental and civil engineering, Vol. 14 N° 3 (Mars 2010)  

Public ISBD [article]  inEuropean journal of environmental and civil engineering > Vol. 14 N° 3 (Mars 2010) . - pp. 283-301 Titre : On the loading/shear strength coupling in the probabilistic formulation of the limit-state in shear for gravity dams Type de document : texte imprimé Auteurs : Claudio Carvajal, Auteur ; Laurent Peyras, Auteur ; Claude Bacconnet, Auteur Année de publication : 2010 Article en page(s) : pp. 283-301 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Gravity dam Shear strength Intrinsic curve Reliability Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper proposes a methodology to take into account of the dependence between hydraulic loading and shear strength in a probability-based procedure for assessing the gravity dam structural safety. This is a major point in a probability-based approach where extreme loadings are a determining factor of dam reliability. The proposed approach uses a parabolic formulation of concrete shear strength. It aims at providing a better representation of the intrinsic curve for normal stress lower levels that might develop in the dam upstream area under extreme hydrostatic loading conditions. Based on the FORM method and on Monte Carlo simulations, a case study shows how relevant the proposed method is and the impact thereof on the results of a reliability analysis completed for an existing gravity dam. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp [article] On the loading/shear strength coupling in the probabilistic formulation of the limit-state in shear for gravity dams [texte imprimé] / Claudio Carvajal, Auteur ; Laurent Peyras, Auteur ; Claude Bacconnet, Auteur . - 2010 . - pp. 283-301. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 14 N° 3 (Mars 2010) . - pp. 283-301 Mots-clés : Gravity dam Shear strength Intrinsic curve Reliability Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper proposes a methodology to take into account of the dependence between hydraulic loading and shear strength in a probability-based procedure for assessing the gravity dam structural safety. This is a major point in a probability-based approach where extreme loadings are a determining factor of dam reliability. The proposed approach uses a parabolic formulation of concrete shear strength. It aims at providing a better representation of the intrinsic curve for normal stress lower levels that might develop in the dam upstream area under extreme hydrostatic loading conditions. Based on the FORM method and on Monte Carlo simulations, a case study shows how relevant the proposed method is and the impact thereof on the results of a reliability analysis completed for an existing gravity dam. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp

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