| Abstract | 第7-8页 |
| 摘要 | 第9-14页 |
| Chapter 1 Introduction | 第14-23页 |
| 1.1 Research background and significance | 第14-15页 |
| 1.2 Research status at home and abroad | 第15-21页 |
| 1.2.1 Research status abroad | 第15-17页 |
| 1.2.2 Research status in China | 第17-21页 |
| 1.3 The main content of this paper | 第21-23页 |
| Chapter 2 Experimental design of linear steel girder | 第23-32页 |
| 2.1 Preface | 第23-32页 |
| 2.1.1 Specimen design and production | 第23-28页 |
| 2.1.2 Loading system | 第28-29页 |
| 2.1.3 Load testing | 第29页 |
| 2.1.4 Component failure/Failure modes | 第29-30页 |
| 2.1.5 Failure scenario | 第30页 |
| 2.1.6 Mechanical failure | 第30-31页 |
| 2.1.7 Load-section strain experimental result | 第31-32页 |
| Chapter: 3 Theoretical Analysis of the Stress and Neutral Axis of the Broken linesteel beam | 第32-47页 |
| 3.1 Preface | 第32页 |
| 3.2 Test phenomena and damage patterns | 第32-34页 |
| 3.2.1 Test phenomenon | 第32-34页 |
| 3.2.2 Failure pattern | 第34页 |
| 3.3 Theoretical analysis of the stress inheritance | 第34-41页 |
| 3.3.1 Basic analysis of elastic-plastic bending | 第36页 |
| 3.3.2 Stress distribution | 第36-37页 |
| 3.3.3 Ifζ2>ζ1 | 第37-38页 |
| 3.3.4 Ifζ2<ζ1 | 第38-40页 |
| 3.3.5 Stress of the Beam under Limit State | 第40-41页 |
| 3.4 Neutral axis positions | 第41-46页 |
| 3.5 Chapter summary | 第46-47页 |
| Chapter 4: Bending, Neutral Axis and Stress Equations Calculation of the BeamLoad in Uniform Loaded Supported on Both Ends | 第47-63页 |
| 4.1 Preface | 第47-48页 |
| 4.1.1 Drawing the UDL | 第47-48页 |
| 4.2 force | 第48-50页 |
| 4.3 Theroretical analysis of the stress | 第50-56页 |
| 4.3.1 Simple shear stress | 第50-51页 |
| 4.3.2 Bending Stress | 第51-52页 |
| 4.3.3 Procedures for determining bending stresses Stress at a Given Point | 第52-56页 |
| 4.4 Neutral axis positions | 第56-62页 |
| 4.5 Chapter summary | 第62-63页 |
| Chapter 5: Finite Element Simulation Analysis (FEA) of the Broken line steelbeam | 第63-79页 |
| 5.1 Preface | 第63-64页 |
| 5.2 Finite element method analysis process | 第64-69页 |
| 5.2.1 Steel properties | 第65页 |
| 5.2.2 The basic properties of steel | 第65-66页 |
| 5.2.3 Model establishment and meshing | 第66-67页 |
| 5.2.4 Boundary conditions | 第67-68页 |
| 5.2.5 Applied load and convergence control | 第68-69页 |
| 5.3 Finite element simulation results | 第69-73页 |
| 5.3.1 Overall stress analysis | 第69-73页 |
| 5.4 Position of Neutral Axis | 第73-78页 |
| 5.5 Chapter summary | 第78-79页 |
| Chapter 6: Finite Element Modelling Analysis of a Steel Beam UniformingDistrubuted Load (UDL) | 第79-92页 |
| 6.1 Preface | 第79页 |
| 6.2 Steel properties | 第79-87页 |
| 6.2.1 Stress Strain Curve or Diagram | 第79-81页 |
| 6.2.2 Model establishment and meshing | 第81页 |
| 6.2.3 Using New Meshing Features in ansys workbenchSimulation | 第81-82页 |
| 6.2.4 Overall stress analysis | 第82-87页 |
| 6.3. Position of the neutral axis | 第87-90页 |
| 6.4 chapter summary | 第90-92页 |
| Chapter7. Comparison and Interpretation of the Results of the DifferentPrototype Steel Beams | 第92-96页 |
| 7.1 Experimental and theorical comaparion Results | 第94-95页 |
| 7.1.2 Experimental test results of the of the Broken line steel beam | 第94-95页 |
| 7.2 Theoretical results of the Broken line steel beam | 第95-96页 |
| Chapter 8 Conclusion and Prospect | 第96-98页 |
| 8.1 Conclusion | 第96-97页 |
| 8.2 Looking ahead | 第97-98页 |
| References | 第98-103页 |
| Appendix A Thesis published during the master's degree study | 第103-104页 |
| Acknowledgements | 第104页 |
