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Strengthening of reinforced concrete beam-column joints to increase seismic resistance. / Titelei/Inhaltsverzeichnis
Strengthening of reinforced concrete beam-column joints to increase seismic resistance. / Titelei/Inhaltsverzeichnis
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Chapter
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i–xxv
Titelei/Inhaltsverzeichnis
i–xxv
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1–6
Chapter 1 Introduction
1–6
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1.1 Introduction
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1.2 Motivation of the research
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1.3 Objectives
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1.4 Organization of the research
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7–58
Chapter 2 Background and State of the Art
7–58
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2.1 Introduction
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2.2 Seismic behaviour of substandard RC beam-column Joints
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2.2.1 Summary of results
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2.3 Retrofitting and strengthening techniques of beam-column joints
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2.3.1 Epoxy repair procedures
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2.3.1.1 Vacuum impregnation procedure
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2.3.1.2 Vacuum injection technique
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2.3.1.3 Pressure injection technique
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2.3.1.4 Removal and replacement technique
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2.3.1.5 Thin steel plate and pressure-injection technique
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2.3.2 Jacketing and other mechanical retrofitting techniques
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2.3.2.1 Masonry block jacketing technique
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2.3.2.2 Partial masonry infill technique
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2.3.2.3 Prestressed concrete jacketing technique
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2.3.2.4 Concrete jacketing
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2.3.2.5 Concrete jacketing using HPFRC
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2.3.2.6 Concrete jacketing using UNIDO strengthening technique
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2.3.2.7 Steel jacketing
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2.3.2.8 Diagonal steel bracing methods
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2.3.2.9 Planar joint expansion
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2.3.3.1 Utilization of carbon-fiber-reinforced polymer, CFRP
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2.3.3.2 Utilization of glass-fiber-reinforced polymer, GFRP
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2.3.4 The summary of the results and discussion
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2.4 Design approaches by codes of practice
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2.4.1 The bond and shear requirements within the beam-column joints
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2.4.2 Summary and conclusions of the codes comparison
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59–96
Chapter 3 Seismic Retrofitting by Developing the Beam Sidesway Mechanism
59–96
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3.1 Introduction
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3.2 Seismic design principals of structures and joints
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3.3 Performance-based retrofitting through developing the beam plastic
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hinges
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3.3.1 Strategy of seismic retrofitting through the capacity design concept
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3.3.2 Forces acting on an exterior beam-column joint
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3.3.3 Strength and Failure Sequence Diagram (SFSD)
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3.4 Innovative Multi Functional Corbels (HMFC)
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3.4.1 General description
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3.4.2 Hysteretic behaviour
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3.5.2 Hysteretic behaviour
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3.6 An Innovative strengthening and retrofitting technique through
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Multi Functional Corbels (HMFC), Retrofitting Technique 1 (RT1)
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3.6.1 Approach and modified SFSD
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3.6.2 Upgrading the resistance to bond-slip of the beam bottom bars
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3.6.3 Procedure for designing and developing
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3.7 An Innovative strengthening and retrofitting technique through
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HMFC and Harmonica Damper Plates (HHDP),
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Retrofitting Technique 2 (RT2)
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3.7.1 Approach and modified SFSD
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3.7.2 Upgrading the resistance to bond-slip of the beam bottom bars
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3.7.3 Procedure for designing and developing
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97–220
Chapter 4 Experimental Program and Development
97–220
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4.1 Introduction
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4.2 Test specimens, energy dissipation devices and retrofitting
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4.2.1 RC beam-column joint specimens
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4.2.1.1 Material properties
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4.2.1.2 Design, dimensions and details
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4.2.1.3 Production of test specimens
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4.2.2 Multi Functional Corbels, HMFC
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4.2.2.1 Design, dimensions and details
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4.2.2.2 Fabrication of H1, H2 and H3
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4.2.3 Harmonica Damper Plates, HHDP
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4.2.3.1 Design, dimensions and details
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4.2.3.2 Fabrication of D
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4.2.4 Retrofitted specimens
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4.2.4.1 Retrofitted specimen BD-H1
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4.2.4.1.1 Design of retrofitted specimen BD-H1
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4.2.4.1.2 Retrofitting details of specimen BD-H1
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4.2.4.2 Retrofitted specimen SD-H2-D
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4.2.4.2.1 Design of retrofitted specimen SD-H2-D
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4.2.4.2.2 Retrofitting details of specimen SD-H2-D
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4.2.4.3 Retrofitted specimen BD-H3-D
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4.2.4.3.1 Design of retrofitted specimen BD-H3-D
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4.2.4.3.2 Retrofitting details of specimen BD-H3-D
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4.3 Loading setup
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4.3.1 General specifications
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4.3.2 Details and fabrication of the loading setup
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4.3.3 Testing procedure and loading history
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4.4 Instrumentation
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4.5 Experimental tests and results
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4.5.1 Tests of reference units
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4.5.1.1 Test of BD-B
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4.5.1.1.1 Specimen description
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4.5.1.1.2 Strength sequences and damage mechanisms
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4.5.1.1.3 Joint behaviour
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4.5.1.1.4 Decomposition of lateral displacement
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4.5.1.2 Test of SD-B
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4.5.1.2.1 Specimen description
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4.5.1.2.2 Strength sequences and damage mechanisms
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4.5.1.2.3 Joint behaviour
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4.5.1.2.4 Decomposition of lateral displacement
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4.5.2 Tests of retrofitted units
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4.5.2.1 Test of BD-H1
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4.5.2.1.1 Specimen description
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4.5.2.1.2 Strength sequences and damage mechanisms
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4.5.2.1.3 Joint behaviour
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4.5.2.1.4 Behaviour of Multifunctional Corbel (HMFC)
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4.5.2.1.5 Decomposition of lateral displacement
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4.5.2.2 Test of SD-H2-D
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4.5.2.2.1 Specimen description
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4.5.2.2.2 Strength sequences and damage mechanisms
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4.5.2.2.3 Joint behaviour
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4.5.2.2.4 Behaviour of Multifunctional Corbel (HMFC)
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4.5.2.2.5 Behaviour of Harmonica Damper Plate (HHDP)
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4.5.2.2.6 Decomposition of lateral displacement
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4.5.2.3 Test of BD-H3-D
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4.5.2.3.1 Specimen description
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4.5.2.3.2 Strength sequences and damage mechanisms
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4.5.2.3.3 Joint behaviour
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4.5.2.3.4 Behaviour of Multifunctional Corbel (HMFC)
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4.5.2.3.5 Behaviour of Harmonica Damper Plate (HHDP)
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4.5.2.3.6 Decomposition of lateral displacement
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4.6 Test results and summary of findings
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4.6.1 Strength
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4.6.1.1 Strengths in the category of BD
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4.6.1.2 Strengths in the category of SD
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4.6.1.3 Strengths in all specimens
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4.6.2 Energy dissipation
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4.6.2.1 Energy dissipations in the category of BD
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4.6.2.2 Energy dissipations in the category of SD
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4.6.2.3 Energy dissipation in all specimens
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4.6.3 Damage mechanisms
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4.6.4 Hierarchy of strength
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4.6.5 Joint behaviour
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4.6.6 Decomposition of lateral displacement
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221–261
Chapter 5 Numerical Analysis and Simulations
221–261
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5.1 Introduction
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5.2 Implemented constitutive models in ATENA
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5.2.1 Constitutive modelling of concrete
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5.2.1.1 The relation of Stress-strain for concrete
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5.2.1.2 Biaxial stress failure criterion for concrete
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5.2.1.3 Models of smeared cracks
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5.2.2 Constitutive modelling for reinforcement
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5.2.3 Constitutive modelling for reinforcement bond
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5.2.3 Constitutive modelling for Von Mises plasticity
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5.2.4 Constitutive modelling for interface
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5.3 Element types
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5.4 Solutions of nonlinear equations
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5.5 Numerical models for reference units
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5.6 Sensitivity study
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5.6.1 Sensitivity of element size
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5.6.2 Sensitivity of fracture energy
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5.6.3 Sensitivity of cyclic reinforcement
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5.6.4 Sensitivity of tension stiffening
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5.6.5 Sensitivity of cracking model
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5.7 Numerical models for retrofitted specimens
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5.8 Comparison the results of FE analysis and experimental test
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5.8.1 Reference unit BD-B
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5.8.2 Reference unit SD-B
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5.8.3 Retrofitted specimen BD-H1
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5.8.4 Retrofitted specimen SD-H2-D
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5.8.5 Retrofitted specimen BD-H3-D
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5.9 Developing a new upgrading method, Retrofitting Technique 3 (RT3)
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262–269
Chapter 6 Conclusions and Recommendations
262–269
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6.1 Conclusions
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6.1.1 Conclusions of experimental study
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6.1.1.1 Strength
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6.1.1.2 Energy dissipation
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6.1.1.3 Damage mechanisms
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6.1.1.4 Hierarchy of strength
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6.1.1.5 Joint behaviour
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6.1.1.6 Decomposition of lateral displacement
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6.1.2 Conclusions of numerical study
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6.1.3 General conclusion
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6.2 Recommendations for further research
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270–278
References
270–278
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279–281
Appendix A: Supplementary Reviews of Laboratory Activities
279–281
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282–304
Appendix B: Scheme and Details of Loading Setup
282–304
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305–307
Appendix C: Installation of Specimens into the Loading Setup
305–307
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308–312
Appendix D: Decomposition of Specimen Deformation
308–312
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313–BC
Appendix E: Concept of Relative Energy Dissipation Ratio
313–BC
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Strengthening of reinforced concrete beam-column joints to increase seismic resistance. , page i - xxv
Titelei/Inhaltsverzeichnis
Autoren
Mahdi Hayatrouhi
DOI
doi.org/10.51202/9783816791782-i
ISBN print: 978-3-8167-9177-5
ISBN online: 978-3-8167-9178-2
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