Rehabilitation of Concrete Structures with Fiber-Reinforced Polymer
- 1st Edition - November 23, 2018
- Authors: Riadh Al-Mahaidi, Robin Kalfat
- Language: English
- Paperback ISBN:9 7 8 - 0 - 1 2 - 8 1 1 5 1 0 - 7
- eBook ISBN:9 7 8 - 0 - 1 2 - 8 1 1 5 1 1 - 4
Rehabilitation of Concrete Structures with Fiber Reinforced Polymer is a complete guide to the use of FRP in flexural, shear and axial strengthening of concrete structure… Read more
Rehabilitation of Concrete Structures with Fiber Reinforced Polymer is a complete guide to the use of FRP in flexural, shear and axial strengthening of concrete structures. Through worked design examples, the authors guide readers through the details of usage, including anchorage systems, different materials and methods of repairing concrete structures using these techniques. Topics include the usage of FRP in concrete structure repair, concrete structural deterioration and rehabilitation, methods of structural rehabilitation and strengthening, a review of the design basis for FRP systems, including strengthening limits, fire endurance, and environmental considerations.
In addition, readers will find sections on the strengthening of members under flexural stress, including failure modes, design procedures, examples and anchorage detailing, and sections on shear and torsion stress, axial strengthening, the installation of FRP systems, and strengthening against extreme loads, such as earthquakes and fire, amongst other important topics.
- Presents worked design examples covering flexural, shear, and axial strengthening
- Includes complete coverage of FRP in Concrete Repair
- Explores the most recent guidelines (ACI440.2, 2017; AS5100.8, 2017 and Concrete society technical report no. 55, 2012)
Researchers and practitioners in Concrete and Structural Engineering
1. Introduction
1.1 Need for Rehabilitation and
Strengthening
1.2 Structural Degradation of Concrete
Structures
1.3 Strengthening of Concrete Structures
Using FRP Composites
1.3.1 Strengthening of RC Members
in Flexure
1.3.2 Strengthening of RC Members
in Shear
1.3.3 Confinement of Axial Members
Using FRP
2. Methods of Structural Rehabilitation
and Strengthening
2.1 Externally Bonded Steel Plates
2.2 External Posttensioning
2.3 Jacketing of Structural Members
2.4 Rehabilitation of Reinforcement
Corrosion
2.5 Crack Injection
2.6 Selection of Appropriate Strengthening
Technique
References
3. Fiber-Reinforced Polymers and Their
Use in Structural Rehabilitation
3.1 Materials and Manufacturing
3.2 Wet Layup Systems
3.3 Prepreg Systems
3.4 Precured Systems
3.5 Near-Surface-Mounted FRP Systems
3.5.1 Bond Behavior
3.5.2 Modes of Failure
3.6 Prestressed FRP
3.6.1 S&P Prestressed FRP Systems
3.6.2 Carbo-Stress System (Stress Head)
References
4. Design Basis for FRP Systems
4.1 Strengthening Limits
4.2 Structural Fire Endurance
4.3 Environmental Considerations
4.3.1 Moisture—Humidity/Chemical
Attack
4.3.2 Hygrothermal Aging of Epoxy Resin
4.3.3 Alkalinity
4.3.4 Thermal Effects and Freeze/Thaw
Conditions
4.3.5 Ultraviolet Radiation
4.3.6 Design Recommendations
References
5. Strengthening Members in Flexure
Using FRP
5.1 General
5.2 Basis of Design
5.3 Rectangular Stress Block
5.4 Failure Modes of FRP Flexurally
Strengthened Members
5.4.1 Concrete Crushing
5.4.2 FRP Rupture
5.4.3 Intermediate Crack-Induced
Debonding
5.4.4 End Debonding
5.4.5 Use of U-Strap Anchors to Mitigate
End Debonding
5.5 Ductility of FRP-Strengthened Members
5.6 FRP Termination and Anchorage
5.7 Serviceability Considerations
5.8 Creep Rupture and Fatigue Stress
Limits
5.9 Design Summary Flow Charts for
Flexurally Strengthened Members
5.9.1 Flexural Strengthening Flow Chart
According to AS 5100.8 (2017)
5.9.2 Flexural Strengthening Flowchart
According to ACI 440.2R (2017)
5.9.3 Flexural Strengthening Flowchart
According to TR 55 (2012)
5.10 Flexural Strengthening Examples
5.10.1 Flexural Strengthening of an RC
T Beam According to AS 5100.5
(2017) and AS 5100.8 (2017)
5.10.2 Flexural Strengthening of a
Prestressed Super-T beam
According to AS 5100.5 (2017)
and AS 5100.8 (2017)
5.10.3 Flexural Strengthening of an
RC T-Beam According to ACI 318
(2014) and ACI 440.2R (2017)
5.10.4 Flexural Strengthening of a
Prestressed Super-T Beam
According to ACI 318 (2014)
and ACI 440.2R (2017)
5.10.5 Flexural Strengthening of an RC
T-Beam According to BS EN
1992–1-1 (24) and Technical
Report No. 55 (2012)
5.10.6 Flexural Strengthening of a
Prestressed Super-T Beam
According to BS EN1992–1:1(24)
and Technical Report No. 55
(2012)
References
Further Reading
6. Strengthening Members in Shear
Using FRP
6.1 Introduction
6.2 Concept of Safety in Design
6.3 Contribution of Concrete to Shear
Capacity of Prestressed Members
6.4 Contribution of Concrete to Shear
Capacity of Prestressed Members
6.5 Shear Contribution of Transverse Shear
Reinforcement
6.6 Design of Concrete Members
Strengthened in Shear Using FRP
6.6.1 Failure Modes
6.6.2 Contribution of FRP to Shear
Capacity
6.7 Design Summary Flowcharts for
Shear-Strengthened Members
6.7.1 Shear-Strengthening Flow Chart
According to AS5100.8 (2017)
6.7.2 Shear-Strengthening Flow Chart
According to TR55 (2012)
6.8 Shear-Strengthening Examples
6.8.1 Shear Strengthening of an RC
T-Beam According to AS5100.5 (2017)
and AS5100.8 (2017)
6.8.2 Shear Strengthening of a Prestressed
Super T-beam According to AS5100.5
(2017) and AS5100.8 (2017)
6.8.3 Shear Strengthening of an RC
T-beam According to ACI Committee
318 (2014) and ACI440.2 (2017)
6.8.4 Shear Strengthening of a Prestressed
Super T-beam According to ACI
Committee 318 (2014) and ACI 440.2
(2017)
6.8.5 Shear Strengthening of a RC
T-beam According to BS EN 1992-1-1
(24) and Technical Report No. 55
6.8.6 Shear Strengthening of a Prestressed
Super T-beam According to BS EN
1992-1-1 (24) and Technical
Report No. 55
References
Further Reading
7. Axial Strengthening of RC Members
Using FRP
7.1 General
7.2 Confinement Under Concentric
Axial Load
7.2.1 ACI and AS 5100 Models for
Confined Circular Columns
7.2.2 ACI and AS 5100 Models for
Confined Rectangular Columns
7.2.3 TR 55 Model for Confined Circular
Columns
7.2.4 TR 55 Model for Confined
Rectangular Columns
7.2.5 Confinement of Slender
Columns
7.2.6 Ultimate Strength in Compression
of a Short Column
7.3 Combined Axial Compression and
Flexure
7.3.1 Diagram of Axial Moment
Interaction for Rectangular and
Circular Sections
7.3.2 Ultimate Strength in Compression
of a Slender Column
7.4 Serviceability Considerations
7.5 Design Summary Flowcharts for Axially
Strengthened Members
7.5.1 Axial Strengthening Flowchart
According to ACI 440.2 (2017)
7.5.2 Axial Strengthening Flowchart
According to AS5100.8 (2017)
7.5.3 Axial Strengthening Flowchart
According to Technical
Report No. 55
7.6 Axial Strengthening Examples
7.6.1 Axial Strengthening of a Circular
Column According to AS5100.5 (2017)
and AS5100.8 (2017)
7.6.2 Axial strengthening of a
rectangular column according to
AS5100.5 (2017) and AS5100.8
(2017)
7.6.3 Axial Strengthening of a Circular
Column According to
ACI 318 (ACI Committee 318, 2014)
and ACI 440.2 (2017)
7.6.4 Axial Strengthening of a
Rectangular Column According to
ACI Committee 318 (2014) and
ACI 440.2 (2017)
7.6.5 Axial Strengthening of a Circular
Column According to BS EN
1992-1-1 (24) and
Technical Report No. 55
7.6.6 Axial Strengthening of a Rectangular
Column According to BS EN
1992-1-1 (24) and
Technical Report No. 55
References
Further Reading
8. FRP Anchorage Systems
8.1 Introduction
8.2 Anchorage Devices for FRP
Reinforcement Used to Strengthen
Members in Flexure
8.2.1 FRP U-jacket Anchors
8.2.2 Inclined U-jacket Orientations
8.2.3 Prestressed U-jackets
8.2.4 Metallic Anchorage Systems
8.2.5 FRP Anchors
8.2.6 p-Anchor
8.2.7 Evaluation of FRP Anchorage
Systems Used to Strengthen
Members in Flexure
8.3 Flexural Anchor Discussion
8.4 Mechanisms of FRP Failure in Shear
Strengthening Applications
8.5 Anchorage Devices for FRP
Reinforcement Used to Strengthen
Members in Shear
8.5.1 Mechanically Fastened Metallic
Anchors in Shear and Torsion
Applications
8.5.2 Anchorage of FRP Through
Concrete Embedment
8.5.3 FRP Spike Anchors in Shear
Applications
8.5.4 Patch Anchors
8.5.5 Hybrid (FRP Anchors+Patch
Anchors)
8.5.6 Substrate Strengthening
8.5.7 NSM Anchors
8.5.8 Evaluation of FRP Anchors
Used to Strengthen Members
in Shear
8.6 Shear Anchor Discussion
8.7 Further Work and Development of
Design Provisions
8.8 Conclusions and Recommendations
References
Further Reading
9. Installation and Testing of FRP
Systems
9.1 General
9.2 Preparation
9.2.1 Concrete Substrate
9.2.2 Concrete Flatness
9.2.3 Leveling of the Substrate
9.2.4 Environmental Conditions
9.2.5 Set Out
9.3 Application of Pultruded FRP Laminate
Systems
9.4 Application of FRP Fabrics
9.5 Quality Control
9.5.1 Testing of Substrate Prior to
Application of FRP
9.5.2 Adhesion and Durability
9.5.3 Visual Inspections
9.6 Repair Techniques
9.7 Cold Weather Application/Accelerated
Curing
9.8 Hot Weather Application
References
Further Reading
10. Field Applications
10.1 West Gate Bridge Project
10.1.1 Modeling
10.1.2 Selection of Material
10.1.3 Detailing
10.1.4 Application and Quality Control
10.2 Strengthening of Posttensioned Slabs
at White City London
10.2.1 Method of Works
10.2.2 Aspects of Construction
10.2.3 Testing and Approval
10.2.4 Summary
Acknowledgments
References
Further Reading
- Edition: 1
- Published: November 23, 2018
- Language: English
RA
Riadh Al-Mahaidi
Dr. Riadh Al-Mahaidi is a Professor of Structural Engineering and Director of the Smart Structures Laboratory at Swinburne University of Technology. He also holds the position Vice President (International Engagement) at Swinburne. His research and practice interests include life time integrity of bridges, particularly in the area of structural strength assessment and retrofitting using advanced composite materials. He was awarded the 2012 Vice Chancellor’s Internationalization Award, the RW Chapman Medals in 2005 and 2010 for best journal publication in Engineers Australia Structural Journal. Prof Al-Mahaidi and his research group won the 2016 Engineers Australia Excellence Award for Innovation, Research and Development (High Commendation) for the Multi-Axis Substructure Testing (MAST) System they built at Swinburne. He was awarded the 2017 WH Warren Medal by Board of the College of Civil Engineers of Engineers Australia. He and Dr Kalfat won the 2018 Research Impact Award from the Australian Road Research Board ‘ARRB’ in recognition of their research on the development and application of efficient and cost-effective FRP systems in retrofitting of bridges. Prof Al-Mahaid is a Fellow of the American Concrete Institute, Fellow of the Institution of Engineers, Australia, and a Fellow of the International Institute for FRP in Construction IIFC.
Affiliations and expertise
Professor of Structural Engineering and Director of the Smart Structures Laboratory, Swinburne University of Technology, AustraliaRK
Robin Kalfat
Dr. Robin Kalfat is a Lecturer in Civil and Construction Engineering at Swinburne University of Technolgy (Melbourne, Australia). His research interests include: strengthening and rehabilitation of existing structures using advanced composite materials, protective systems to improve earthquake performance of structures and advanced numerical techniques for structural analysis.
Affiliations and expertise
Lecturer in Civil and Construction Engineering, Faculty of Science, Engineering and Technology, School of Engineering, Swinburne University of Technology, AustraliaRead Rehabilitation of Concrete Structures with Fiber-Reinforced Polymer on ScienceDirect