Dissertation > Excellent graduate degree dissertation topics show

Dynamic-Stiffness Coefficients and Dynamic Response of Embedded Foundations

Author: CuiJing
Tutor: LiangJianWen
School: Tianjin University
Course: Structural Engineering
Keywords: Half-space Layered soil Dynamic-stiffness matrix Dynamic Green’s function Indirect boundary element method embedded foundations Dynamic-stiffness coefficients Foundation dynamic response
CLC: TU435
Type: Master's thesis
Year: 2007
Downloads: 49
Quote: 0
Read: Download Dissertation

Abstract


The analysis of dynamic-stiffness coefficients of embedded foundations and the foundation response under the action of the seismic excitation are important both in theory and engineering. Wolf derived dynamic-stiffness matrix of elastic layered soil, which formed a complete theory for wave propagation in layered site and dynamic soil-structure interaction. How to use Wolf’s theory to calculate dynamic-stiffness coefficients of embedded foundations and the foundation response under the action of the seismic excitation will be mainly resolved in this paper.General solutions of the wave equations are deduced by introducing wave potentials. Then exact and symmetric dynamic-stiffness matrices of a layered soil and half-space are derived. All parameters have explicitly physical meaning and the thickness o sub-layers has no influence on the calculation precision, which is very convenient to engineering application. Based on these matrices, Green’s functions are derived for distributed loads acting on inclined line in a layered site, which resolved the key problems in the calculation of dynamic-stiffness coefficients of embedded foundations by using the indirect boundary element method.The dynamic-stiffness coefficients of embedded foundations on half-space and layered site is systematically calculated and researched. The dynamic-stiffness coefficients of embedded foundations under different embedment is discussed.After calculating dynamic-stiffness coefficients and considering the mass of the foundation and the structure, foundation response under the action of the seismic excitation is systematically researched. The influence of embedment on the foundation response is emphatically analysed.

Related Dissertations

  1. An Analysis of Dynamic Response of Subgrade to High-speed Moving Traffic Loads with Three Degrees of Freedom,TU435
  2. Research on Urban Geographic Information System for Transportation Based on Vector Graph,P208
  3. Research on Squeezing Effects of Jacked Pile in Layered Soil Based on the Model Test and Finite Element Simulation,TU473.1
  4. The Rigid Index of Filling Roadbed and the Research of Its Rapid Prosecuted Technology,U416.2
  5. Experimental Study on the Movement of Soil Water in Layered Water Repellent Soils,S152.7
  6. A Singular Integral Equation on the Upper Half Space,O175.5
  7. Properties of Positive Solutions for a System of Integral Equation on Half Space,O175.5
  8. Search for new methods for three - dimensional complex slope stability analysis of the sliding surface,TU43
  9. Vibroseis Vibration Analyses by Dynamic Finite Element,P631.4
  10. The Bending Problems of Circular Plate on Transversal Isotropic Elastic Half-space,O343
  11. With bolt holes line elements 3D-FSM · DDM boundary element theory and software development,O346.1
  12. Static and Dynamic Analysis of High-Rise Building Superstructure and Foundation Interaction,TU435
  13. Bending and Vibration of Rectangular Orthotropic Thin Plates on Elastic Half-Space,TU470.3
  14. Virtual Inversion of Moving Vibration Source on EULER Beam Overlaid on an Elastic Half-Space,U239.5
  15. Experiment Study on Nitrate Transport and Effctions on Groundwater Environment under Intermittent Infiltration of Surge Irrigation in Layered Soil,S275.3
  16. Out-of-plane Seismic Response of a Canyon in Layered Half-space,TU435
  17. The Influence of Local Inclusions in Layered Half-space on the Earthquake Ground Motions,TU311.2
  18. Influence of Underground Cavity in Layered Half-space on Earthquake Ground Motions,TU352.1
  19. Displacement Field Due to Moving Load on Timoshenko Beam Overlaid on Elastic Half-Space and the Source Function Inversion,U211.3
  20. Pile-Soil on Dynamic Interaction,TU473.1
  21. The Evaluation of Void Beneath Slab in Old Concrete Pavement,U416.216

CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Soil Mechanics > Soil Dynamics and Vibration foundation
© 2012 www.DissertationTopic.Net  Mobile