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Frame Soil Interaction And Winkler Model

Allam, MM and Rao, Subba KS and Subramanya, BVV (1991) Frame Soil Interaction And Winkler Model. In: Proceedings - Institution of Civil Engineers - Part 2: Research and Theory, 91 (3). pp. 477-494.

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The Winkler spring model is the most convenient representation of soil support in the domain of linear elasticity for framed structure-soil interaction analyses. The closeness of the analytical results obtained using this model with those corresponding to the elastic half-space continuum has been investigated in the past for foundation beams. The findings, however, are not applicable to framed structures founded on beam or strip footings. Moreover, the past investigations employ the concept of characteristic length which does not adequately account for the stiffness contribution of the superstructure. A framed structure on beam foundation can be described parametrically by the ratios of stiffnesses of superstructure and foundation beams to that of soil. For a practical range of soil allowable pressures, the ranges of these relative stiffness ratios have been established. The present study examines the variation between interactive analyses based on Winkler springs with those using the half-space continuum over these ranges of relative stiffness ratios. The findings enable the analyst to undertake a Winkler spring-based-interaction analysis with knowledge of the likely variation of values with those derived for the more computation-intensive half-space continuum.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Thomas Telford.
Keywords: Soils;Footings;Springs;Framed;Soil Structure;Moments; Analysis;Symmetric;Cement;Reinforced;Interactive;Concrete; Winkler Springs;Two Bay;Interaction;Two Storey;Variations; Support;Foundations;Studies;Indian Institute Of Science; Stiffness;Parametric;Linear;Strip;Half Space; Superstructures;Elastic;Ratios;Beams;Models;Floors; Relative;Frames;Hogging;Continuum;Ms Ramaiah Institute Of Technology;Elasticity;Open Plane;Representation.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Depositing User: Ms Mary Ranjeetha
Date Deposited: 19 Nov 2010 05:39
Last Modified: 19 Nov 2010 05:39
URI: http://eprints.iisc.ac.in/id/eprint/33858

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