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Experimental and Theoretical Study on Seismic Behavior of Concrete Columns Reinforced with Steel-Basalt FRP Composite Bars and Hybrid Stirrups

ACKNOWLEDGEMENTS第5-6页
摘要第6-8页
ABSTRACT第8-10页
CHAPTER 1 Literature Review第21-53页
    1.1 Introduction第21-22页
    1.2 Fiber Reinforced Polymer第22-30页
        1.2.1 Fibers第22-25页
        1.2.2 Polymeric Matrices第25-30页
    1.3 State-of-The-Art of FRP in Civil Engineering第30-36页
        1.3.1 FRP Bars and Grids for Reinforced Concrete Members第32-35页
        1.3.2 FRP Used For Pre-Stressed Concrete Members第35-36页
    1.4 Review of Hybrid Reinforcement第36-48页
        1.4.1 Hybrid FRP Sheets第36-38页
        1.4.2 Hybrid FRP Bars第38-41页
        1.4.3 Steel-FRP Composite第41-48页
    1.5 Review of the Seismic Performance Concrete Columns第48-51页
        1.5.1 Post-Yield Stiffness's and Residual Deformations第49-51页
    1.6 Summary第51-53页
CHAPTER 2 Preliminary Design of Reinforced Concrete Columns第53-71页
    2.1 Introduction第53-55页
    2.2 Columns Setup第55-56页
    2.3 Behavior, Nominal Capacity And Design Under Axial Loads第56-62页
        2.3.1 Column Capacity第56-57页
        2.3.2 Reinforcement Requirements第57-59页
        2.3.3 Design SBFCB Reinforcement第59-62页
    2.4 Simplified Dynamic Analysis第62-65页
        2.4.1 Period of the Bridge through Earthquake Loading第62页
        2.4.2 Design Response Spectrum第62-63页
        2.4.3 Target Displacement第63-65页
    2.5 Shear Capacity第65-66页
    2.6 Deflections and Plastic Curvature第66-68页
    2.7 Displacement Ductility Capacity第68页
    2.8 Viscous Damping Ratio第68页
    2.9 Results of Theoretical Studies第68-70页
    2.10 Summary第70-71页
CHAPTER 3 Compressive Behavior of Concrete Cylinders Confined By Steel-Basalt Fiber HybridStirrup (SBFHS)第71-85页
    3.1 Introduction第71-72页
    3.2 Experimental Investigation第72-75页
        3.2.1 Cylinder Design第72-73页
        3.2.2 Material Properties (Concrete)第73页
        3.2.3 BFRP Material第73页
        3.2.4 Test Setup第73-75页
    3.3 Test Results and Discussion第75-81页
        3.3.1 Ultimate Load Carrying Capacity第75-76页
        3.3.2 Axial Load-Deformation第76-79页
        3.3.3 Axial Stress-Strain第79-80页
        3.3.4 Failure Modes第80-81页
    3.4 Stress-Strain Model第81-83页
    3.5 Summary第83-85页
CHAPTER 4 Experimental Study of the Cyclic Behavior of Concrete Bridge Columns Reinforced bySteel-Basalt Fiber Composite Bars and Hybrid Stirrups第85-113页
    4.1 Introduction第85-87页
    4.2 Research Significance第87-88页
    4.3 SBFCB Manufacturing第88-89页
    4.4 Experimental Program第89-91页
    4.5 Material Properties第91-93页
    4.6 Test Setup第93-94页
    4.7 Loading Pattern第94页
    4.8 Test Results第94-111页
        4.8.1 Hysteretic Behavior and Loops第94-97页
        4.8.2 Crack Development第97-101页
        4.8.3 Residual Deformations of Bridge Columns第101-102页
        4.8.4 The Envelope Curve第102-105页
        4.8.5 Energy Dissipation, Viscous Damping and Stiffness Degradation第105-108页
        4.8.6 Column Curvatures第108-111页
    4.9 Summary第111-113页
CHAPTER 5 Bond-Based Study on Concrete Columns Reinforced By Hybrid Bars and Stirrupsunder Cyclic Loading第113-137页
    5.1 Introduction第113-115页
    5.2 Material Properties第115-116页
    5.3 Experimental Program第116-121页
        5.3.1 Test Setup and Measurement第117-119页
        5.3.2 Analytical Bond-Slip Models第119-121页
    5.4 Test Results and Discussion第121-136页
        5.4.1 Lateral Force-Displacement第121-125页
        5.4.2 Test Failure Mode Observations第125-126页
        5.4.3 Residual Displacement第126-129页
        5.4.4 Stiffness Degradation第129页
        5.4.5 Dissipated Energy and Equivalent Viscous Damping Ratio第129-134页
        5.4.6 SBFCB and BFRP Reinforcement Strain第134-136页
    5.5 Summary第136-137页
CHAPTER 6 Numerical Study on Concrete Column's Reinforced With Steel Basalt Fiber CompositeBars and Stirrups第137-167页
    6.1 Introduction第137-138页
    6.2 Analytical Modeling第138-141页
        6.2.1 General Features of Modeling Selection第138-141页
    6.3 Material Properties第141-147页
        6.3.1 Concrete Material第141-142页
        6.3.2 Steel Constitutive Model第142-143页
        6.3.3 Bond Model第143-145页
        6.3.4 Material Model for Representing Hybrid Bars第145-147页
    6.4 Parametric Study第147页
    6.5 Model Verification第147-165页
        6.5.1 Hysteretic Behavior and Loops第150-154页
        6.5.2 Envelope Curves第154-156页
        6.5.3 Residual Displacements第156-159页
        6.5.4 Stiffness Degradation第159-161页
        6.5.5 Energy Dissipation and Damping第161-163页
        6.5.6 Viscous Damping Ratio第163-165页
    6.6 Summary第165-167页
CHAPTER 7 Conclusions and Future Research第167-187页
    7.1 Introduction第167-171页
        7.1.1 Compressive Behavior of Concrete Cylinders Confined By Steel-Basalt FiberHybrid Stirrup (SBFHS)第167-168页
        7.1.2 Experimental Study of the Cyclic Behavior of Concrete Bridge ColumnsReinforced by Steel-Basalt Fiber Composite Bars and Hybrid Stirrups第168-169页
        7.1.3 Bond-Based Study on Concrete Columns Reinforced By Hybrid Bars and Stirrupsunder Cyclic Loading第169-170页
        7.1.4 Numerical Study on Concrete Column's Reinforced With Steel Basalt FiberComposite Bars and Stirrups第170-171页
    7.2 The Innovative Points of This Thesis第171页
    7.3 Future Research第171页
    7.4 References第171-187页
APPENDICES第187-195页
FINANCIAL SUPPORT第195-196页
Author Papers Published During the PhD第196页

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