Refined Model for Analysis of Plates on Elastic Foundations
Publication: Journal of Engineering Mechanics
Volume 117, Issue 12
Abstract
Practicing engineers continue to use the Winkler model for the analysis of beams and plates resting on elastic foundations in spite of the disclosure of inconsistencies in the use of the Winkler model by past researchers. In this paper, using variational principles, the model developed by Vlasov and Leont'ev is refined, and a numerical model using the finite difference method is introduced to solve a rectangular plate resting on a layered soil medium. Instead of the coefficient of subgrade reaction of the soil, the material properties of the soil are used in the analysis. The basic parameters required for the analysis are computed from the geometry and material properties of the soil and the structure. Some of the basic inconsistencies in the classical Winkler model are brought out in this paper. Results of some examples are presented.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 117 • Issue 12 • December 1991
Pages: 2830 - 2843
Copyright
Copyright © 1991 ASCE.
History
Published online: Dec 1, 1991
Published in print: Dec 1991
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