| Summary: | 碩士 === 國立中興大學 === 土木工程學系所 === 100 === This study uses the numerical method to analyze inelastic beam on nonlinear Winkler''s foundation model, considering the soil-pile interaction effect. The nonlinear behavior of the pile is described by the moment curvature relationship of the section, and the lateral soil pressure is modeled as the resistance from a serious of nonlinear p-y springs. A set of nonlinear differential equations is developed to simulate the laterally loaded soil pile system. Using the mathematical software “Mathematica” and finite element analysis software “OpenSees” to establish the model into the behavior inductive analysis, the pile deformation, curvature distribution and lateral soil pressure along the pile are obtained by the numerical solution of models for various level of pile head displacement. Analysis results also clearly illustrate the formation of plastic hinge, development of plastic rotation, redistribution of bending moment after yielding, and the rapid increase of inelastic curvature at the plastic hinge.
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