Prestressed Concrete

Prestressed Concrete
Title Page
Copyright
Contents
Preface
Notation
Chapter 1: Introduction
	1.1: Prestressed concrete
	1.2: Prestressing as a design option
	1.3: Use of high-strength tendons and cables
	1.4: Methods of prestressing
	1.5: Anchorage and bond of tendons
	1.6: Cable profile and level of prestress
	1.7: References
Chapter 2: Properties of materials
	2.1: Introduction
	2.2: Properties of prestressing steel
	2.3: Properties of reinforcing steel
	2.4: Strength properties of concrete
	2.5: Short-term deformation of concrete
	2.6: Shrinkage of concrete
	2.7: Creep of concrete under constant stress
	2.8: Concrete creep under varying stress
	2.9: References
Chapter 3: Methods of design and analysis
	3.1: The structural design process
	3.2: Design objectives and design criteria for prestressed concrete
	3.3: Design criteria and structural reliability
	3.4: AS 3600 design checks for prestressed concrete
	3.5: The critical stress method of design
	3.6: Methods of analysis
	3.7: Strut-and-tie modelling and stress-fields
	3.8: References
Chapter 4: Flexural behaviour of uncracked members
	4.1: Introduction
	4.2: Short-term behaviour of uncracked beams
	4.3: Equivalent load concept
	4.4: Load balancing
	4.5: Creep and shrinkage effects in beams
	4.6: Analysis of creep and shrinkage effects
	4.7: Deflections of uncracked beams
	4.8: References
Chapter 5: Flexural behaviour in the post-cracking range
	5.1: Cracking moment
	5.2: Post-cracking flexural behaviour
	5.3: Elastic analysis for a rectangular cracked section
	5.4: The effect of prior creep and shrinkage
	5.5: Cracked section analysis: general trial-and-error method
	5.6: Non-linear analysis at high overload
	5.7: Moment-curvature and stress-moment relationships
	5.8: Deflection calculations
	5.9: Crack control
	5.10: References
Chapter 6: Flexural strength analysis
	6.1: Overload behaviour and ultimate strength
	6.2: Assumptions for ultimate strength analysis
	6.3: Rectangular section: calculation of ultimate moment
	6.4: T- and I-sections: calculation of ultimate moment
	6.5: Moment capacity with some steel not at yield
	6.6: Effect of incomplete bond
	6.7: General analysis by trial strain distributions
	6.8: Stress in bonded tendons at ultimate
	6.9: Design considerations
	6.10: References
Chapter 7: Shear and torsion
	7.1: Shear and torsion in prestressed concrete
	7.2: Overload behaviour in shear and bending
	7.3: Web reinforcement behaviour in the post-cracking range
	7.4: Effect of prestress on behaviour in shear
	7.5: Web-shear cracking load for prestressed members
	7.6: Strength in shear
	7.7: Design for shear according to AS 3600
	7.8: Analysis and design for torsion
	7.9: References
Chapter 8: Anchorage
	8.1: Introduction
	8.2: Simplified design approach for post-tensioned beams
	8.3: Anchorage of pretensioning tendons
	8.4: Design of end blocks using strut-and-tie modelling
	8.5: References
Chapter 9: Loss of prestress
	9.1: Types of losses
	9.2: Elastic loss
	9.3: Duct friction loss
	9.4: Anchorage slip
	9.5: Stress relaxation
	9.6: AS 3600 calculation of deferred losses
	9.7: Analytic methods for evaluating deferred losses
	9.8: References
Chapter 10: Design procedures for statically determinate beams
	10.1: Structural design
	10.2: Choosing the type of construction
	10.3: Choosing the cross-section
	10.4: Choosing the prestressing details
	10.5: Design steps
	10.6: Discussion of key steps
	10.7: Design criteria for serviceability
	10.8: Design examples
	10.9: References
Chapter 11: Continuous beams
	11.1: Advantages of continuous construction
	11.2: Effects of prestress in continuous beams
	11.3: Calculating the effects of prestress by the equivalent load method
	11.4: Cable profiles for continuous post-tensioned beams
	11.5: Service load behaviour of continuous beams
	11.6: Deflection calculations for continuous beams
	11.7: Overload behaviour and flexural strength
	11.8: Design procedure for continuous beams
	11.9: References
Chapter 12: Slab systems
	12.1: Introduction
	12.2: Effects of prestress
	12.3: Effects of prestress plus service load
	12.4: Cracking
	12.5: Deflections
	12.6: Ultimate strength analysis
	12.7: Design steps for prestressed slabs
	12.8: References
Appendix A: Analysis of uncracked sections
	A.1: Uncracked post-tensioned section with reinforcement
	A.2: Uncracked pretensioned section with reinforcement
Appendix B: Creep and shrinkage in uncracked flexural members
	B.1: Introductory note
	B.2: Order-of-magnitude estimates of long-term deformations and prestress losses
	B.3: One-step analysis with age-adjusted effective modulus
	B.4: Step-by-step analysis
	B.5: Approximate closed form equations for losses and deformations
	B.6: Non-uniform shrinkage and creep
	B.7: References
Appendix C: Effects of prior creep and shrinkage on flexural strength
	C.1: Introduction
	C.2: Short-term service load application
	C.3: Effect on flexural strength
	C.4: Concluding remarks
Appendix D: Elastic deflections and end rotations for single-span beams
Index