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

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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


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