SAB4323 / MAE1183 PRESTRESSED CONCRETE DESIGN

• 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

• Stress range at a section, permissible stresses and inequality conditions, selection of sections
• Graphical interpretation of inequality conditions.
• Determination of prestressing force and eccentricity

• 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.

• Deflection of prestressed concrete beams, short-term deflection
• Calculation of long-term deflection

• Composite construction, advantages, design differences.
• Stages of loading, unshored and shored construction.
• Stress range and inequality conditions

• Analysis of sections at collapse, use of non-prestressed reinforcement, design considerations
• Design example

• Overload behaviour of beams in combined bending and shear, benefits of prestressing
• Shear resistance of uncracked & cracked sections
• Design example

• Anchorage zone for pre-tensioned and post tensioned members, transmission length
• End block for post-tensioned members
• Examples

• Overload behaviour of beams in combined bending and shear, benefits of prestressing
• Shear resistance of uncracked & cracked sections
• Design example

• Anchorage zone for pre-tensioned and post tensioned members, transmission length
• End block for post-tensioned members
• Examples

• Introduction
• Advantages of continuity
• Tendon profiles