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Load and resistance factor design of drilled shafts in sand / D. Basu in Journal of geotechnical and geoenvironmental engineering, Vol. 138 N° 12 (Décembre 2012) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 12 (Décembre 2012) . - pp. 1455–1469 Titre : Load and resistance factor design of drilled shafts in sand Type de document : texte imprimé Auteurs : D. Basu, Auteur ; Rodrigo Salgado, Auteur Année de publication : 2013 Article en page(s) : pp. 1455–1469 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Load  and  resistance  factor  design  Drilled  shaft  Axial  load  Foundation  design  Sand  Load  factors  Resistance  factors  Limit  states  Reliability  analysis Résumé : Resistance factors are developed for drilled shafts for a design method based on soil variables. The uncertainties associated with the design variables and equations were systematically quantified, and Monte-Carlo simulations were performed to obtain the distributions of the shaft and base capacities. Both the base and shaft capacities were found to follow normal distributions, and the applied dead and live loads were assumed to follow normal and lognormal distributions, respectively. Reliability analysis was then performed to obtain the limit state and nominal resistances and loads for a variety of soil profiles and pile dimensions. The optimal dead- and live-load factors were subsequently obtained from the analysis. The optimal resistance factors were then adjusted for use with the load factors recommended by the Federal Highway Administration. ISSN : 1090-0241 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000714 [article] Load and resistance factor design of drilled shafts in sand [texte imprimé] / D. Basu, Auteur ; Rodrigo Salgado, Auteur . - 2013 . - pp. 1455–1469. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 12 (Décembre 2012) . - pp. 1455–1469 Mots-clés : Load  and  resistance  factor  design  Drilled  shaft  Axial  load  Foundation  design  Sand  Load  factors  Resistance  factors  Limit  states  Reliability  analysis Résumé : Resistance factors are developed for drilled shafts for a design method based on soil variables. The uncertainties associated with the design variables and equations were systematically quantified, and Monte-Carlo simulations were performed to obtain the distributions of the shaft and base capacities. Both the base and shaft capacities were found to follow normal distributions, and the applied dead and live loads were assumed to follow normal and lognormal distributions, respectively. Reliability analysis was then performed to obtain the limit state and nominal resistances and loads for a variety of soil profiles and pile dimensions. The optimal dead- and live-load factors were subsequently obtained from the analysis. The optimal resistance factors were then adjusted for use with the load factors recommended by the Federal Highway Administration. ISSN : 1090-0241 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29GT.1943-5606.0000714