| ACKNOWLEDGEMENTS | 第5-6页 |
| 摘要 | 第6-7页 |
| ABSTRACT | 第7-9页 |
| Chapter 1 Introduction | 第20-29页 |
| 1.1 Introduction | 第20-21页 |
| 1.2 Background | 第21-23页 |
| 1.3 Research objectives | 第23页 |
| 1.4 Structure of this thesis | 第23-25页 |
| 1.5 References | 第25-29页 |
| Chapter 2 Literature Review | 第29-68页 |
| 2.1 Introduction | 第29页 |
| 2.2 FRP as External Reinforcement for RC Columns | 第29页 |
| 2.3 FRP-confinement Mechanism | 第29-31页 |
| 2.4 Design Parameters Affecting the Behavior of FRP-Confined Concrete | 第31-37页 |
| 2.4.1 Concrete cross-section | 第31-32页 |
| 2.4.2 Scale size of test specimens | 第32-33页 |
| 2.4.3 Grade of the unconfined concrete | 第33-34页 |
| 2.4.4 Lateral rigidity (stiffness) and confinement ratio | 第34-36页 |
| 2.4.5 Existence of internal steel stirrups | 第36-37页 |
| 2.5 Loading condition | 第37-40页 |
| 2.5.1 Axial monotonic or cyclic load | 第37-38页 |
| 2.5.2 Eccentricity condition | 第38-40页 |
| 2.6 Simulation of the FRP-RC columns | 第40-42页 |
| 2.7 The Available Stress-strain Models and its Classification | 第42-55页 |
| 2.7.1 Basic of Modelling the Stress-Strain Behavior of FRP-Confined Concrete | 第42-44页 |
| 2.7.2 Stress-Strain Models of FRP-Confined Circular Columns | 第44-49页 |
| 2.7.3 Stress-Strain Models of FRP-Confined Rectangular Columns | 第49-51页 |
| 2.7.4 Mathematical models for the stress-strain curves | 第51-54页 |
| 2.7.5 Coding of models | 第54-55页 |
| 2.7.6 Flowcharts for classification of the existing models | 第55页 |
| 2.8 Summary | 第55页 |
| 2.9 References | 第55-68页 |
| Chapter 3 Numerical Study on the Applicability of Design-Oriented Models of FRP-ConfinedConcrete for Predicting the Cyclic Response of Circular FRP-Jacketed RC Columns | 第68-107页 |
| 3.1 Introduction | 第68-70页 |
| 3.2 Axial Stress-Strain Models | 第70-72页 |
| 3.3 Test Columns | 第72-74页 |
| 3.4 Modeling Strategy Using OpenSees | 第74-77页 |
| 3.5 Numerical Results of Small-Scale and Large-Scale Columns | 第77-89页 |
| 3.5.1 Maximum Lateral Strength and Ultimate Displacement of the Simulated Columns | 第83-87页 |
| 3.5.2 Contribution of Strain-Penetration to the Column Ultimate Displacement | 第87页 |
| 3.5.3 Effect of Strain Reduction Factors on the Cyclic Performance of the SimulatedColumns | 第87-88页 |
| 3.5.4 Contribution of TSR to the Column Ultimate Displacement | 第88-89页 |
| 3.6 Design Parameters Affecting the Accuracy of the Predicted Cyclic Response | 第89-91页 |
| 3.6.1 Axial Load Ratio | 第89页 |
| 3.6.2 Effect of the FRP-Confinement Ratio | 第89-90页 |
| 3.6.3 Ratio of Transverse Steel Reinforcement (TSR) | 第90-91页 |
| 3.7 How Does Configuration of the Stress-Strain Relationship Affect the Accuracy of theNumerical Simulation? | 第91-97页 |
| 3.7.1 Different FRP Types Providing the Same Lateral Stiffness | 第91-93页 |
| 3.7.2 Post-Peak Behavior of Concrete Confined with TSR and External FRP | 第93-95页 |
| 3.7.3 Effect of the Shape of the Stress-Strain Relationship of Confined Concrete | 第95-97页 |
| 3.8 Reliable Design-Oriented Model for Analyzing FRP-Confined Columns | 第97-99页 |
| 3.9 Summary and conclusion | 第99-100页 |
| 3.10 References | 第100-107页 |
| Chapter 4 Simulating the Lateral Performance of FRP-Confined RC Circular Columns Using a NewEccentric-Based Stress-Strain Model | 第107-143页 |
| 4.1 Introduction | 第107-110页 |
| 4.2 Simulation of RC columns under axial and lateral loading using OpenSees | 第110-137页 |
| 4.2.1 Database of FRP-retrofitted columns | 第110-112页 |
| 4.2.2 Modeling of FRP-retrofitted RC circular columns | 第112-113页 |
| 4.2.3 Materials modeling | 第113-117页 |
| 4.2.4 The predicted cyclic response of the tested columns | 第117-120页 |
| 4.2.5 Analysis versus design stress-strain models of FRP-confined concrete in simulatingthe tested columns | 第120-124页 |
| 4.2.6 Characteristic stress/strain values affecting the prediction of the column peakstrength and ultimate displacement | 第124-130页 |
| 4.2.7 Proposed Stress-Strain Model | 第130-132页 |
| 4.2.8 Validation of the proposed model | 第132-137页 |
| 4.3 Summary and conclusion | 第137-138页 |
| 4.4 Reference | 第138-143页 |
| Chapter 5 Evaluating and Proposing Models for Predicting the Lateral Response of FRP-RCSquare/Rectangular Columns under the Axial and Lateral Loadings | 第143-171页 |
| 5.1 Introduction | 第143-145页 |
| 5.2 Classification of the existing stress-strain models of FRP-confined concrete | 第145页 |
| 5.3 Database of FRP-retrofitted rectangular columns | 第145-147页 |
| 5.4 Simulation of RC columns under axial and lateral loading using OpenSees | 第147-150页 |
| 5.4.1 Modeling of FRP-confined RC square/rectangular columns | 第147-148页 |
| 5.4.2 Materials modeling | 第148页 |
| 5.4.3 Longitudinal steel | 第148-149页 |
| 5.4.4 Unconfined concrete and confined concrete with (TSR) | 第149页 |
| 5.4.5 FRP-confined concrete | 第149-150页 |
| 5.4.6 FRP-confined concrete in cyclic compression | 第150页 |
| 5.5 The predicted cyclic response of the examined columns | 第150-153页 |
| 5.6 The predicted cyclic response of FRP-RC columns by the adopted model | 第153-159页 |
| 5.7 Cyclic Simulation of the examined columns using the proposed models | 第159-162页 |
| 5.8 Validation of the proposed model | 第162-166页 |
| 5.9 Summary and conclusion | 第166-167页 |
| 5.10 Reference | 第167-171页 |
| Chapter 6 GUI Software to Design the FRP Details of Flexural Deficient RC-Columns Subjected toAxial and Lateral Loads Considering the Impact of Load Eccentricity | 第171-194页 |
| 6.1 Introduction | 第171-172页 |
| 6.2 Why Do We Need A New Design Approach? | 第172-173页 |
| 6.3 Idealized Lateral Load-Displacements Response of FRP-Confined RC Columns | 第173-179页 |
| 6.3.1 Moment-curvature relationship | 第175-178页 |
| 6.3.2 Plastic-hinge of RC-columns confined with FRP-jackets | 第178-179页 |
| 6.4 The Proposed GUI Design Software | 第179-184页 |
| 6.4.1 Design procedures of the FRP-RC columns and introduction to the GUI software | 第179-184页 |
| 6.5 Verification of the Predicted Results | 第184-189页 |
| 6.5.1 Prediction accuracy of the eccentricity ratio (e/r) | 第185页 |
| 6.5.2 Prediction Accuracy of the column yield displacement | 第185-186页 |
| 6.5.3 Prediction accuracy of the column ultimate drift | 第186-189页 |
| 6.5.4 Recommendations for the FRP reinforcement details | 第189页 |
| 6.6 Summary and Conclusion | 第189-190页 |
| 6.7 References | 第190-194页 |
| Chapter 7 Conclusion and Future Research | 第194-198页 |
| 7.1 Introduction | 第194页 |
| 7.2 The main conclusion of this dissertation | 第194-197页 |
| 7.2.1 Numerical Study on the Applicability of Design-Oriented Models of FRP-ConfinedConcrete for Predicting the Cyclic Response of Circular FRP-Jacketed RC Columns | 第194-195页 |
| 7.2.2 Simulating the Lateral Performance of FRP-Confined RC Circular Columns Usinga New Eccentric-Based Stress-Strain Model | 第195-196页 |
| 7.2.3 Evaluating and Proposing Models for Predicting the Lateral Response of FRP-RCSquare/Rectangular Columns under the Axial and Lateral Loadings | 第196页 |
| 7.2.4 GUI Software to Design the FRP Details of Flexural Deficient RC-ColumnsSubjected to Axial and Lateral Loads Considering the Impact of Load Eccentricity | 第196-197页 |
| 7.3 The Innovative Points of This Thesis | 第197页 |
| 7.4 Future Research | 第197页 |
| 7.5 References | 第197-198页 |
| Appendix | 第198-236页 |
| References | 第236-246页 |
| Author Publication (During the PhD) | 第246页 |
