Lesson 1
Introduction
• Basic concept of prestressing, prestressing methods, materials.
• Facilities, equipments and hardware, reinforced vs. prestressed concrete
• BS 8110 design considerations
Lesson 2
Elastic Analysis of Sections for Flexure
• Section properties, sign convention, example.
• Stresses in concrete due to prestress and external loads, cracking moment, example.
• Loads and loading stages, critical loadings, stresses at critical loadings, example
Lesson 3
Preliminary Design for Flexure
• Stress range at a section, permissible stresses and inequality conditions, selection of sections
• Graphical interpretation of inequality conditions.
• Determination of prestressing force and eccentricity
Lesson 4
Loss of Prestress Force
• Sources of prestress loss, immediate and deferred losses.
• Estimation of prestress losses: friction, anchorage slip, elastic shortening of concrete.
• Creep and shrinkage of concrete and relaxation of steel.
Lesson 5
Deflections
• Deflection of prestressed concrete beams, short-term deflection
• Calculation of long-term deflection
Lesson 6
Composite Beams
• Composite construction, advantages, design differences.
• Stages of loading, unshored and shored construction.
• Stress range and inequality conditions
Lesson 7
Design for Ultimate Strength In Flexure
• Analysis of sections at collapse, use of non-prestressed reinforcement, design considerations
• Design example
Lesson 8
Design for Ultimate Strength In Shear
• Overload behaviour of beams in combined bending and shear, benefits of prestressing
• Shear resistance of uncracked & cracked sections
• Design example
Lesson 9
Design of Anchorage Zone
• Anchorage zone for pre-tensioned and post tensioned members, transmission length
• End block for post-tensioned members
• Examples
Lesson 10
Design for Shear (Lecture by Dr. Roslli Noor)
• Overload behaviour of beams in combined bending and shear, benefits of prestressing
• Shear resistance of uncracked & cracked sections
• Design example
Lesson 11
Design of Anchorage Zone (Lecture by Prof. Dr. Wahid Omar)
• Anchorage zone for pre-tensioned and post tensioned members, transmission length
• End block for post-tensioned members
• Examples
Lesson 12
Design of Continuous Beams
• Introduction
• Advantages of continuity
• Tendon profiles
Lesson 13
Design of Continuous Beams - continued...
• Linear tansformation and concordancy.
• Example.