Applicability of conventional p-y relations to the analysis of piles in laterally spreading soil / Christopher R. McGann in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 6 (Juin 2011)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 137 N° 6 (Juin 2011) . - pp. 557-567 Titre : Applicability of conventional p-y relations to the analysis of piles in laterally spreading soil Type de document : texte imprimé Auteurs : Christopher R. McGann, Auteur ; Pedro Arduino, Auteur ; Peter Mackenzie-Helnwein, Auteur Année de publication : 2011 Article en page(s) : pp. 557-567 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Lateral spreading Soil-pile interaction 3D FEA p-y curves Laterally loaded piles Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : This paper presents a kinematic analysis of a single pile embedded in a laterally spreading layered soil profile and discusses the relevancy of conventional analysis models to this load case. The research encompasses the creation of three-dimensional (3D) finite-element (FE) models using the OpenSees FE analysis platform. These models consider a single pile embedded in a layered soil continuum. Three reinforced concrete pile designs are considered. The piles are modeled using beam-column elements and fiber-section models. The soil continuum is modeled using brick elements and a Drucker-Prager constitutive model. The soil-pile interface is modeled using beam-solid contact elements. The FE models are used to evaluate the response of the soil-pile system to lateral spreading and two alternative lateral load cases. Through the computation of force density-displacement (p-y) curves representative of the soil response, the FE analysis (FEA) results are used to evaluate the adequacy of conventional p-y curve relationships in modeling lateral spreading. It is determined that traditional p-y curves are unsuitable for use in analyses where large pile deformations occur at depth. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i6/p557_s1?isAuthorized=no [article] Applicability of conventional p-y relations to the analysis of piles in laterally spreading soil [texte imprimé] / Christopher R. McGann, Auteur ; Pedro Arduino, Auteur ; Peter Mackenzie-Helnwein, Auteur . - 2011 . - pp. 557-567. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 6 (Juin 2011) . - pp. 557-567 Mots-clés : Lateral spreading Soil-pile interaction 3D FEA p-y curves Laterally loaded piles Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : This paper presents a kinematic analysis of a single pile embedded in a laterally spreading layered soil profile and discusses the relevancy of conventional analysis models to this load case. The research encompasses the creation of three-dimensional (3D) finite-element (FE) models using the OpenSees FE analysis platform. These models consider a single pile embedded in a layered soil continuum. Three reinforced concrete pile designs are considered. The piles are modeled using beam-column elements and fiber-section models. The soil continuum is modeled using brick elements and a Drucker-Prager constitutive model. The soil-pile interface is modeled using beam-solid contact elements. The FE models are used to evaluate the response of the soil-pile system to lateral spreading and two alternative lateral load cases. Through the computation of force density-displacement (p-y) curves representative of the soil response, the FE analysis (FEA) results are used to evaluate the adequacy of conventional p-y curve relationships in modeling lateral spreading. It is determined that traditional p-y curves are unsuitable for use in analyses where large pile deformations occur at depth. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i6/p557_s1?isAuthorized=no

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