Numerical Study on the Soil-Pile-Structure Interaction is Dry and Wet Soil

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Moeini, Mohammad | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49130 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Mohtasham Dolatshahi, Kiarash; Khosravi, Ali
Abstract:
In this research, soil-pile-structure in dry and wet soil conition will be investigated.Specifically the goal of the research is to study the effect of soil-pile-structure interaction on the collapse capacity of the offshore structures. To that end, initially soil-pile interaction in three soil types in dry and wet condition, has been studied. To investigate soil-pile interaction methods of FEM and Winkler springs have been implemented and in the following stages Winkler method was used for seismic soil-pile-structure interaction. Also, 2D FEM was used for soil-column analysis. Finally, an offshore jacket structure was modeled and verified using experimental data to capture collapse limit state and then the effect of soil-pile-structure interaction was investigated and seismic performance factors was derived. Furthermore, nonlinear time-history analysis was performed and results are presented in the form of response time-history and spectral acceleration of superstructure
Keywords:
Collapse Capacity ; Offshore Structures ; Nonlinear Static Analysis ; Time History Analysis ; Soil-Pile-Structure Interaction ; Dynamic Winkler Method ; Soil-Column Analysis

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