Load and resistance factor design for axially loaded drilled shafts
Rodrigo Salgado, Sang Inn Woo
In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical EngineeringSession: Probability and Reliability-based Design
ABSTRACT: Resistance factors are developed for drilled shafts (bored piles) in sand and clay for design methods based on soil variables. A rigorous analysis was performed in which the uncertainties of the design variables and equations were systematically quantified. Monte-Carlo simulations were then performed to obtain the distributions of the shaft and base capacities and applied dead and live loads. The limit state and nominal resistances and loads were identified, and the optimal dead and live load factors calculated. The optimal resistance factors were then adjusted for use with load factors recommended by FHWA. Use of these factors in the design of drilled shafts using LRFD is then discussed.
RÉSUMÉ: Les facteurs de résistance sont développés pour des puits forés dans le sable et d'argile pour les méthodes de conception basées sur les variables du sol. Une analyse rigoureuse a été effectuée dans laquelle les incertitudes des variables de conception et les équations ont été systématiquement quantifiés. Simulations Monte-Carlo ont été effectuées pour obtenir les distributions de l'arbre et des capacités de base et les charges appliquées morts et vivants. Les résistances état limite et nominales et les charges ont été identifiés, et les facteurs de charge optimal mortes et vivantes ont été obtenus d'eux. Les facteurs de résistance optimale ont ensuite été ajustés pour une utilisation avec des facteurs de charge recommandées par la FHWA. Conception des piles en utilisant LRFD est discutée.
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Rodrigo Salgado; Sang Inn Woo
(2011) Load and resistance factor design for axially loaded drilled shafts in GEO2011. Ottawa, Ontario: Canadian Geotechnical Society.
@article{GEO11Paper713,
author = Rodrigo Salgado; Sang Inn Woo
,
title = Load and resistance factor design for axially loaded drilled shafts,
year = 2011
}
title = Load and resistance factor design for axially loaded drilled shafts,
year = 2011
}