دانلود کتاب Prestressed Concrete Design to Eurocodes

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Content: Cover
Title
Copyright
Dedication
CONTENTS
Preface
1. Basic concepts
1.1 Introduction
1.2 Prestressed concrete
1.3 Economics of prestressed concrete
2. Technology of prestressing
2.1 Methods of prestressing
2.2 Pre-tensioning
2.2.1 Debonding/blanketing of strands
2.2.2 Deflecting/draping/harping of strands
2.2.3 Loss of prestress at transfer
2.2.4 Transmission length
2.2.4.1 Example of calculation of transmission length
2.3 Post-tensioning
2.3.1 Post-tensioning anchors
2.3.2 Loss of prestress at transfer
2.3.3 External prestressing
2.3.4 Unbonded systems 3. Material properties3.1 Properties of concrete
3.2 Compressive strength of concrete
3.3 Tensile strength of concrete
3.4 Deformational properties
3.4.1 Elastic moduli
3.4.2 Creep coefficient
3.4.3 Shrinkage
3.5 Stress-strain relationship
3.5.1 Parabolic-rectangular relationship
3.5.2 Bi-linear relationship
3.5.3 Confined concrete
3.6 Permissible stresses in concrete
3.7 Prestressing steel
3.8 Relaxation
3.9 Maximum Stress at Jacking
3.10 Long-term loss of prestress
3.11 References to Eurocode 2 clauses
4. Serviceability limit state design of pre-tensioned beams 4.1 Design of prestressed concrete structure4.2 Beam design based on engineers' theory of bending
4.2.1 Sign convention
4.2.2 Example of beam designed based on engineer's theory of bending
4.3 Development of SLS design equations
4.3.1 Example of SLS design equations
4.3.2 Magnel diagram
4.3.3 Choice of prestress and eccentricity
4.3.4 Stress check
4.3.5 Debonding
4.3.6 Choice of prestress and eccentricity at different sections
4.4 Initial sizing of section
4.4.1 Example of preliminary sizing
4.5 Composite beam section
4.5.1 Magnel equations for composite beam 4.5.2 Shrinkage stress calculation4.5.3 Example of shrinkage stress calculation
4.5.4 Magnel diagrams for a composite beam
4.5.5 Choice of prestress and eccentricity at different sections
4.6 Cracking
4.7 Thermal stress calculation
4.7.1 Heating
4.7.2 Cooling
4.7.3 Calculation of stresses due to thermal gradients
4.7.4 Example of thermal stress calculation
4.7.4.1 Thermal stress calculation: Heating
4.7.4.2 Thermal stress calculation: Cooling
4.8 Detailing
4.9 References to Eurocode 1 and Eurocode 2 clauses
5. Bonded post-tensioned structures
5.1 Post-tensioned beams 5.2 Cable profile in a post-tensioned beam5.2.1 Example of permitted cable zone
5.2.1.1 Magnel equations
5.2.1.2 Determination of maximum eccentricity
5.2.1.3 Determination of cable zone
5.2.1.4 Detailing of post-tensioned tendons
5.3 Concept of equivalent loads
5.3.1 General equation for equivalent loads
5.3.2 General equation for distributed loads for a parabolic profile
5.3.3 Drape of the cable
5.4 Load balancing
5.5 Reference to Eurocode 2 clauses
6. Statically indeterminate post-tensioned structures
6.1 Introduction
6.1.1 Primary and secondary moments