Force Coupled Structure‐Foundation Interaction
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 110, Issue 2
Abstract
A method of force‐coupling the nonlinear response of a pile foundation to the linear response of a structure is presented. Basically, this method successively corrects the three boundary forces and three boundary moments for each pile at the pile‐structure interface by comparing the nonlinear response of the pile‐soil system to a linear quasi‐tangent modulus response. Convergence is assumed when all six values per pile are within a stated tolerance. This technique has been employed in the analysis of approximately 40 major and a number of smaller offshore structures in the Gulf of Mexico and has been found to be an efficient and accurate way of coupling a structure to its foundation. It is shown that this method accounts for certain lateral nonlinearities that are inherent in most pile‐soil system responses and why these can produce large errors using other modeling techniques. Examples of convergence criteria, interpolation algorithms, and computer solution times are also given.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 110 • Issue 2 • May 1984
Pages: 182 - 200
Copyright
Copyright © 1984 ASCE.
History
Published online: May 1, 1984
Published in print: May 1984
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