A simplified model for the linear elastic analysis of laterally loaded caissons

Varun; Assimaki, D; Gazetas, G

dc.contributor.author	Varun	en
dc.contributor.author	Assimaki, D	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T02:51:32Z
dc.date.available	2014-03-01T02:51:32Z
dc.date.issued	2008	en
dc.identifier.issn	08950563	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35542
dc.subject.other	Associated costs	en
dc.subject.other	Complex stress	en
dc.subject.other	Critical facilities	en
dc.subject.other	Current practices	en
dc.subject.other	Embedded foundation	en
dc.subject.other	Finite element simulations	en
dc.subject.other	Flexible pile	en
dc.subject.other	Frequency dependent	en
dc.subject.other	Linear elastic analysis	en
dc.subject.other	Numerical simulation	en
dc.subject.other	Numerical solution	en
dc.subject.other	Shallow foundations	en
dc.subject.other	Simplified models	en
dc.subject.other	Soil interfaces	en
dc.subject.other	Soil resistance	en
dc.subject.other	Transient response	en
dc.subject.other	Transient systems	en
dc.subject.other	Winkler model	en
dc.subject.other	Aspect ratio	en
dc.subject.other	Machine design	en
dc.subject.other	Simulators	en
dc.subject.other	Soils	en
dc.subject.other	Stress concentration	en
dc.subject.other	Three dimensional	en
dc.subject.other	Geologic models	en
dc.title	A simplified model for the linear elastic analysis of laterally loaded caissons	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1061/40971(310)2	en
heal.identifier.secondary	http://dx.doi.org/10.1061/40971(310)2	en
heal.publicationDate	2008	en
heal.abstract	The transient response of large embedded foundation elements of length-to-diameter aspect ratio D/B=2-6, is characterized by a complex stress distribution at the pier-soil interface that cannot be adequately represented by means of existing models for shallow foundations or flexible piles. While 3D numerical solutions are feasible, they are infrequently employed in practice due to their associated cost and effort. Prompted by the scarcity of simplified models for design in current practice, we here propose a Winkler model that accounts for the multitude of soil resistance mechanisms mobilized at their base and circumference, while retaining the advantages of simplified methodologies for the design of non-critical facilities. The frequency dependent spring functions are developed on the basis of finite element simulations. Numerical simulations for transfer functions and transient system response to vertically propagating shear waves are also successfully compared with the analytically predicted response. Copyright ASCE 2008.	en
heal.journalName	Geotechnical Special Publication	en
dc.identifier.doi	10.1061/40971(310)2	en
dc.identifier.issue	178	en
dc.identifier.spage	17	en
dc.identifier.epage	24	en