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Boundary element formulations for nonlinear soil-structure interaction / Ahmed Fady Mahmoud Farid ; Supervised Youssef F. Rashed

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ahmed Fady Mahmoud Farid , 2018Description: 251 P. : charts , facsimiles ; 30cmOther title:
  • صياغات العناصر الحدودية للتأثير اللاخطي المتبادل بين التربة والمنشأ [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering Summary: In this thesis, a comprehensive study to overcome soil-structure interaction problems that are present in nonlinear analysis of piled rafts. Direct boundary element formulations are used to perform nonlinear analysis of piled rafts. The raft is considered as a shear-deformable plate, whereas the soil is modeled as either Winkler springs or elastic half space (EHS). Piles are modeled using their actual geometry including all interaction effects. Two different direct boundary element formulations are reviewed: a) Plate stiffness matrix formulation (FEM-like formulation), and b) adding stiffness matrices to the plate integral equation formulation (BEM-like formulation) are used.Firstly, the proposed BEM plate stiffness matrix formulation is extended to analyze plates on elastic-plastic Winkler foundations. Iterative methodology is used to perform nonlinear analysis of plate on elastic-plastic Winkler foundations.This methodology is also extended to analyze plates on elastic-plastic and tensionless Winkler foundations.Subsequently, nonlinear analysis of piled rafts is developed. Nonlinear analysis of piled rafts at certain load level is developed using three different formulations and two nonlinear numerical techniques
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.Ph.D.2018.Ah.B (Browse shelf(Opens below)) Not for loan 01010110076980000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.Ph.D.2018.Ah.B (Browse shelf(Opens below)) 76980.CD Not for loan 01020110076980000

Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

In this thesis, a comprehensive study to overcome soil-structure interaction problems that are present in nonlinear analysis of piled rafts. Direct boundary element formulations are used to perform nonlinear analysis of piled rafts. The raft is considered as a shear-deformable plate, whereas the soil is modeled as either Winkler springs or elastic half space (EHS). Piles are modeled using their actual geometry including all interaction effects. Two different direct boundary element formulations are reviewed: a) Plate stiffness matrix formulation (FEM-like formulation), and b) adding stiffness matrices to the plate integral equation formulation (BEM-like formulation) are used.Firstly, the proposed BEM plate stiffness matrix formulation is extended to analyze plates on elastic-plastic Winkler foundations. Iterative methodology is used to perform nonlinear analysis of plate on elastic-plastic Winkler foundations.This methodology is also extended to analyze plates on elastic-plastic and tensionless Winkler foundations.Subsequently, nonlinear analysis of piled rafts is developed. Nonlinear analysis of piled rafts at certain load level is developed using three different formulations and two nonlinear numerical techniques

Issued also as CD

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