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Reliability analysis of laterally loaded piles involving nonlinear soil and pile behavior / C. L. Chan in Journal of geotechnical and geoenvironmental engineering, Vol. 135 N°3 (Mars 2009) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N°3 (Mars 2009) . - pp. 431–443 Titre : Reliability analysis of laterally loaded piles involving nonlinear soil and pile behavior Type de document : texte imprimé Auteurs : C. L. Chan, Auteur ; B. K. Low, Auteur Année de publication : 2009 Article en page(s) : pp. 431–443 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Correlation  Design  Failure  modes  Limit  states  Monte  Carlo  method  Nonlinear  analysis  Optimization  Pile  lateral  loads  Reliability  Soil  properties Résumé : An alternative approach of analyzing laterally loaded piles in the ubiquitous spreadsheet platform is presented. The numerical procedure couples nonlinear pile flexural rigidity (EpIp) with nonlinear p-y analysis. The deterministic study is then extended to carry out reliability analysis, which reflects the uncertainties and correlation structure of the underlying parameters. The reliability index is evaluated based on the alternative intuitive perspective of an expanding equivalent ellipsoid in the original space of the random variables. This paper investigates two modes of failure: deflection and bending moment, and considers non-normal random variables. Spatial variability of the soil medium is accounted for by incorporating an autocorrelation model. The spreadsheet-based reliability approach can also be coupled with stand-alone programs via the response surface method. The probabilities of failure inferred from reliability indices agree well with Monte Carlo simulations. Simple reliability-based design is demonstrated, in which the appropriate pile section or length that satisfies target reliability in one or more limit states is sought. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282009%29135%3A3%2843 [...] [article] Reliability analysis of laterally loaded piles involving nonlinear soil and pile behavior [texte imprimé] / C. L. Chan, Auteur ; B. K. Low, Auteur . - 2009 . - pp. 431–443. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 135 N°3 (Mars 2009) . - pp. 431–443 Mots-clés : Correlation  Design  Failure  modes  Limit  states  Monte  Carlo  method  Nonlinear  analysis  Optimization  Pile  lateral  loads  Reliability  Soil  properties Résumé : An alternative approach of analyzing laterally loaded piles in the ubiquitous spreadsheet platform is presented. The numerical procedure couples nonlinear pile flexural rigidity (EpIp) with nonlinear p-y analysis. The deterministic study is then extended to carry out reliability analysis, which reflects the uncertainties and correlation structure of the underlying parameters. The reliability index is evaluated based on the alternative intuitive perspective of an expanding equivalent ellipsoid in the original space of the random variables. This paper investigates two modes of failure: deflection and bending moment, and considers non-normal random variables. Spatial variability of the soil medium is accounted for by incorporating an autocorrelation model. The spreadsheet-based reliability approach can also be coupled with stand-alone programs via the response surface method. The probabilities of failure inferred from reliability indices agree well with Monte Carlo simulations. Simple reliability-based design is demonstrated, in which the appropriate pile section or length that satisfies target reliability in one or more limit states is sought. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282009%29135%3A3%2843 [...]