List of Notations
Chapter 1 General Introduction
1.2Research Sources and Background
1.2.1Research Sources
1.2.2Research Background
1.3Research Sources and Background
1.3.1Study Overview of FRP-Confined Concrete
1.3.2Studies on Effects of Internal Reinforcement
1.3.3Studies on Effects of column section’s dimensions
1.4Research Significance and Objectives
1.4.1Research Significance
1.4.2Research Objectives
1.5 Research Outline
Chapter 2 FRP-Confined Rectangular RC Columns under Monotonic Loading
2.1 Introduction
2.2Test Data Collection and Discussion
2.1.1Failure Modes
2.2.1Axial Stress-Strain Behavior
2.2Column Parameters Effects
2.2.1Effect of Aspect Ratio
2.2.2Effect of Internal Steel Reinforcement
2.3Hoop Strain of Ruptured FRP Wraps
2.4Evaluation of Existing Ultimate Strength Models
2.5Analytical Modelling
2.5.1Confinement Provided by FRP Wraps
2.5.2Confinement Provided by Internal Steel Hoops
2.5.3Combined Confinement by FRP and Internal Steel Hoops
2.5.4Amount of FRP for Sufficiently Confined Concrete
2.5.5Proposed Stress-Strain Model
2.6Chapter Summary
Chapter 3 Retrofitting Methods for FRP-Confined Rectangular RC Columns
3.1Method 1: Shape Modification
3.1.1 Introduction
3.1.2 Test Database
3.1.3Development of Stress-Strain Model
3.1.4Amount of FRP for Sufficiently Confined Concrete
3.1.5 Model Evaluation
3.2Method 2:Anchoring the FRP jacket by FRP anchors
3.2.1 Introduction
3.2.2Research Significance
3.2.3Test Specimens and Overview of Experimental Results
3.2.4Existing Models for Columns with FRP Anchors
3.2.5Proposed Stress-Strain Model
3.3Chapter Summary
Chapter 4 Cyclic Stress-Strain Model for FRP-Confined Rectangular RC Columns
4.1 Introduction
4.2Test Database
4.3Cyclic Axial Stress-Strain Model
4.3.1 General
4.3.2Envelope Stress-Strain Model for Cyclic Response
4.3.3Plastic Strain
4.3.4Unloading Path
4.3.5Reloading Path
4.3.6Verification of the Proposed Model
4.4Chapter Summary
Chapter 5 Stress-Strain Model for Concrete Columns with Internal FRP Reinforcement
5.1 Introduction
5.2Overview of Test Specimens and Results
5.2.1Tests Conducted by De Luca
5.2.2Tests Conducted by Lotfy
5.2.3Tests Conducted by Tobbi
5.3Evaluation of Existing Analytical Models
5.3.1Models for Steel-Confined Concrete
5.3.2Models for FRP-RC Columns
5.4Analytical Modeling
5.4.1 General
5.4.2Confinement Pressure from Internal FRP Hoops
5.4.3Peak Stress and Corresponding Strain
5.4.4Ultimate Stress and Corresponding Strain
5.4.5Amount of FRP for Sufficiently Confined Concrete
5.4.6Development of a Stress-Strain Model
5.4.7Verification of Proposed Stress-Strain Model
5.5Chapter Summary
Conclusions
结论
参考文献
List of Publications
声明
致谢
Resume
Flowchart 1
Flowchart 2
