声明
Abstract
摘要
Contents
Chapter 1 Introduction
1.1 Research background and significance
1.2 Research status at home and abroad
1.2.1 Research status abroad
1.2.2 Research status in China
1.3 The main content of this paper
Chapter 2 Experimental design of linear steel girder
2.1 Preface
2.1.1 Specimen design and production
2.1.2 Loading system
2.1.3 Load testing
2.1.4 Component failure/Failure modes
2.1.5 Fallure scenario
2.1.6 Mechanical failure
2.1.7 Load-section strain experimental result
Chapter:3 Theoretical Analysis of the Stress and Neutral Axis of the Broken line steel beam
3.1 Preface
3.2 Test phenomena and damage patterns
3.2.1 Test phenomenon
3.2.2 Failure pattern
3.3 Theoretical analysis of the stress inheritance
3.3.1 Basic analysis of elastic-plastic bending
3.3.3 Ifξ2>ξ1
3.3.4 Ifξ2<ξ1
3.3.5 Stress of the Beam under Limit State
3.4 Neutral axis positions
3.5-Chapter summary
Chapter 4:Bending,Neutral Axis and Stress Equations Calculation of the Beam Load in Uniform Loaded Supportedon Both Ends
4.1 Preface
4.1.1 Drawing the UDL
4.2 force
4.3 Theroretical analysis of the stress
4.3.1 Simple shear stress
4.3.2 Bending Stress
4.3.3 Procedures for determining bending stresses Stress at a Given Point
4.4 Neutral axis positions
4.5 Chapter summary
Chapter 5:Finite Element Simulation Analysis(FEA)of the Broken line steel beam
5.1 Preface
5.2 Finite element method analysis process
5.2.1 Steel properties
5.2.2 The basic properties of steel
5.2.3 Model establishment and meshing
5.2.4 Boundary conditions
5.2.5 Applied load and convergence control
5.3.1 Overall stress analysis
5.4 Position of Neutral Axis
5.5-Chapter summary
Chapter 6:Finite Element Modelling Analysis of a Steel Beam Uniforming Distrubuted Load(UDL)
6.1 Preface
6.2 Steel properties
6.2.1 Stress Strain Curve or Diagram
6.2.2 Model establishment and meshing
6.2.3 Using NewMeshing Features in ansys workbench Simulation
6.2.4 Overall stress analysis
6.3 Position of the neutral axis
6.4-chapter summary
Chapter 7 Comparison and Interpretation of the Results of the Different Prototype Steel Beams
7.1 Experimental and theorical comaparion Results
7.2 Theoretical results of the Broken line steel beam
Chapter 8 Conclusion and Prospect
8.1 Conclusion
8.2 Looking ahead
References
Appendix
Acknowledgements