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Statnamic damping coefficient / Michael Stokes in Journal of geotechnical and geoenvironmental engineering, Vol. 134 n°9 (Septembre 2008) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 134 n°9 (Septembre 2008) . - pp. 1290–1298 Titre : Statnamic damping coefficient : numerical modeling approach Type de document : texte imprimé Auteurs : Michael Stokes, Auteur ; Gray Mullins, Auteur ; Carl Ealy, Auteur Année de publication : 2008 Article en page(s) : pp. 1290–1298 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Cohesionless  soils  Damping  Pile  load  tests  Load  tests  Soil-pile  interaction Résumé : The damping associated with dynamic or statnamic tests has typically been over simplified to provide a “catch-all” factor for those responses that could not be fully accounted for using present analyses. This factor has historically been considered constant for a given pile–soil system, but recent investigations as well as previous case studies show the plausibility of another explanation. This study hypothesizes that damping is more closely associated with the increase in strain and not the total strain. Therein, the change in the volumetric strain is being scrutinized to investigate its relationship to damping. To validate this assumption, a numerical model is created which simulates the testing of a full-scale drilled shaft and results analyzed to determine the extent of the zone of influence and volumetric contribution to damping En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A9%2812 [...] [article] Statnamic damping coefficient : numerical modeling approach [texte imprimé] / Michael Stokes, Auteur ; Gray Mullins, Auteur ; Carl Ealy, Auteur . - 2008 . - pp. 1290–1298. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 n°9 (Septembre 2008) . - pp. 1290–1298 Mots-clés : Cohesionless  soils  Damping  Pile  load  tests  Load  tests  Soil-pile  interaction Résumé : The damping associated with dynamic or statnamic tests has typically been over simplified to provide a “catch-all” factor for those responses that could not be fully accounted for using present analyses. This factor has historically been considered constant for a given pile–soil system, but recent investigations as well as previous case studies show the plausibility of another explanation. This study hypothesizes that damping is more closely associated with the increase in strain and not the total strain. Therein, the change in the volumetric strain is being scrutinized to investigate its relationship to damping. To validate this assumption, a numerical model is created which simulates the testing of a full-scale drilled shaft and results analyzed to determine the extent of the zone of influence and volumetric contribution to damping En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A9%2812 [...]