文摘
英文文摘
CHAPTER 1 PREFACE
§1.1 Introduction of Arch-shaped Corrugated Shell Roof
1.1.1 Applications of the structure
1.1.2 Automatic building machine (ABM) and operations instructions
1.1.3 Erection method of ACSR
§ 1.2 The Structure Characteristic of Arch-Shaped Corrugated Shell Roof
§ 1.3 The Collapse Accidents of ACSR and Its Existing Problems
§ 1.4 The Conception of Arch-Shaped Non-corrugated Shell Roof (ANSR) and The Realization of The Roof
§ 1.5 The Study Status of ACSR
§ 1.6 The Significance of The Subject
§ 1.7 Work Done in This Thesis
CHAPTER 2 NONLINERA FE EQUATIONS SOLUTION TECHNOLOGY
§ 2.1 Introduction to The Nonlinear FEM Theory
2.1.1 Finite deformation theory in nonlinear FEM
2.1.2 Stresses analysis in nonlinear FEM
2.1.3 Constitutive equation
§2.2 Virtual Work Principle of Nonlinear FEM
2.2.1 T.L formulas
2.2.2U.L formulas
2.2.3 The comparison between U.L method and T.L method
§ 2.3 Path-following Technology
§ 2.4 Comments on The Computational Method on Nonlinear Equation
§ 2.5 Conclusions
CHAPTER 3 THE BEARING CAPACITY RESEARCH ON ACSR
§ 3.1 Automatic FEM Mesh Generation System
3.1.1 Introduction of automatic FEM mesh generation
3.1.2 Automatic FEM mesh nodes coordinates generation
3.1.3 The numeration of the nodes and elements, elements information
3.1.4 The definition of super element and stitches between boundaries
3.1.5 The program of FE meshes automatic generation system procedure
§ 3.2 Shell FE Model
3.2.1 Assumptions
3.2.2 Strain displacement matrix
3.2.3 Elasto-plastic stress-strain relations
3.2.4 Tangential stiffness matrix
§ 3.3 Main Factors to Infiuent on The Bearing Capacity
3.3.1 The thickness of sheet effect on the bearing capacity ACSR
3.3.2 The span effect on the bearing capacity of ACSR
3.3.3 The rise-to-span ratio effect on the bearing capacity of ACSR.
§ 3.4 Conclusions
CHAPTER 4 THE BEARING CAPACITY OF ARCH-SHAPED NON-CORRUGATED SHELL ROOF
§ 4.1 The Shape-forming Method and Construction Technology of Arch-shaped Non-corrugated Shell Roof
§ 4.2 Thin-walled Beam Theory of ANSR
4.2.1 Introduction of thin-walled bar
4.2.2 Some fundamental concepts about the thin-walled beam
4.2.3 The shell forces in the thin-walled bars
4.2.4 The thin-walled bar forces
§ 4.3 The Nonlinear FEM Formulas for The Thin-walled Beam
§ 4.4 Main Factors to Influent on The Bearing Capacity
4.4.1 The thickness of sheet effect on the bearing capacity ANSR
4.4.2 The span effect on the bearing capacity of ANSR
4.4.3 The rise-to-span ratio effect on the bearing capacity of ANSR
4.4.4 The material effect on the bearing capacity of ANSR
§ 4.5 The Bearing Capacity Comparison between ACSR and ANSR
§ 4.6 Numerical Regression Formula for The Bearing Capacity of ANSR
§ 4.7 Conclusions
CHAPTER 5 THE WIND PRESSURE ON THE ANSR
§ 5.1 The Fundament of The Fluid Mechanics
5.1.1 Continuity equation
5.1.2 Momentum equations
5.1.3 Navier-Stokes equation
§ 5.2 Reynolds Equation and Reynolds Stress Turbulence Model
5.2.1 Mean N-S equation
5.2.2 The Reynolds stress and turbulence energy transportation equation
5.2.3 Turbulence model
§ 5.3 Computational Model
§ 5.4 2-D Model of Arc-shaped Roof in CFD
§ 5.5 Conclusion
CHAPTER 6 THE DYNAMICS ANALYSIS OF ANSR
§ 6.1 The Wind Load and The Simulation of The Fluctuating Wind Velocity
6.1.1 Power spectrum density function of fluctuating wind pressure
6.1.2 Power spectrum density function of fluctuating wind load
6.1.3 The simulation of wind load
6.1.4 The solution method of dynamics equilibrium equation.
§ 6.2 The theory of dynamic stability
§ 6.3 The dynamics stability analysis of ANSR
§ 6.4 Conclusions
CHAPTER 7 CONCLUSIONS AND FURTHER RESEARCH
§ 7.1 Conclusions
§ 7.2 Further Research
APPENDIXⅠ
APPENDIXⅡ
REFERENCES
ACKNOWLEDGEMENT
