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Title: Effect of Soil Foundation Structure Interaction on Seismic Behaviour of Pile Supported Frame Buildings
Researcher: Sushma Pulikanti
Guide(s): Pradeep Kumar Ramancharla
Keywords: Dynamic soil structure interaction
Finite Element Method
Frame Structure
group effect of structures
Interface modeling
Pile foundations
Soil Foundation Structure Interaction
Soil plasticity
Stress states
Structure Soil Structure Interaction
University: International Institute of Information Technology, Hyderabad
Completed Date: 23/08/2013
Abstract: The main objective of this research is to contribute to the understanding of the seismic performance of superstructure by considering the complex dynamic interaction between superstructure, the pile foundation and the soil. As the dynamic response of the structure and the pile to large extent is inelastic, the primary focus is on studying the behavior of superstructure by modeling the nonlinearities of soil and modeling the interface between pile and soil. newlineTo address this problem, a Finite Element Method is used to model soil structure interaction analysis of pile supported framed structures by programming in MATLAB R2009a using Direct Method. To understand this complex behavior of Soil Foundation Structure Interaction (SFSI) a five storey pile supported frame structure is modeled and its inelastic behavior under strong earthquake excitations is studied. A comparison of linear and nonlinear responses and the effect / significance of soil inelasticity on the structural response are commented. Also a parametric study has been carried out to know the response of pile and pile supported framed buildings with and without interface elements. newlineBesides this, the change in response of a high rise structure when a group of adjacent pile supported structures are present under seismic excitation is also studied (Structure Soil Structure Interaction (SSSI)). Different case studies are considered, namely 1. the group effect of structures supported on piles (like group of two or three identical structures and group of three different structures), 2. the effect of variability in structure height (like 5, 10 and 15 storey structure) and 3. the effect of variability in structure shape are considered. For each case, the SSSI response is compared with the conventional fixed base response to understand the significance of SSSI. newlineQuantitative conclusions of this study states that a reasonable seismic analysis for high rise buildings supported on pile foundations is needed to produce a safe and economic design.
Pagination: xxii,118
Appears in Departments:Civil Engineering

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01_title.pdfAttached File88.19 kBAdobe PDFView/Open
02_certificates.pdf127.9 kBAdobe PDFView/Open
03_acknowledgements.pdf8.68 kBAdobe PDFView/Open
04_contents.pdf176.95 kBAdobe PDFView/Open
05_list of tables figures.pdf135.97 kBAdobe PDFView/Open
06_chapter 1.pdf390.32 kBAdobe PDFView/Open
07_chapter 2.pdf687.44 kBAdobe PDFView/Open
08_chapter 3.pdf511.95 kBAdobe PDFView/Open
09_chapter 4.pdf498.34 kBAdobe PDFView/Open
10_chapter 5.pdf443.4 kBAdobe PDFView/Open
11_chapter 6.pdf314.4 kBAdobe PDFView/Open
12_chapter 7.pdf377.73 kBAdobe PDFView/Open
13_chapter 8.pdf96.91 kBAdobe PDFView/Open
14_appendix.pdf215.89 kBAdobe PDFView/Open
15_references.pdf174.25 kBAdobe PDFView/Open

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