Abstract
The present study investigates the response of rigid surface foundation to moment loading based on nonlinear (hyperbolic) soil model. A finite rectangular surface foundation on a non-linear Winkler soil model is analyzed to evaluate the dependence of its response to eccentricity of load, subgrade properties, etc. A parametric study quantifies the effects of these parameters on the stress–displacement and moment–rotation responses of the foundation. The proposed model captures the inherent nonlinear deformations of the soil and the coupled nature of displacements and rotations of foundations subjected to eccentric loading. The predictions compare well with measured values. Meyerhof’s theory is shown to over-predict the ultimate loads.
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