Course Contents
Detailed schedule of this course will be uploaded soon.
Special Features
Each participant will receive:
1. Workbook with course notes and carefully selected references addressing many aspects of prestressed concrete during this course
2. An opportunity to operate various testing equipment for understanding the behavior of prestressed concrete
Module 1: Introduction to Prestressed Concrete
Basic concept of prestressing, prestressing methods, materials. Facilities, equipment and hardware, reinforced vs. prestressed concrete, Code Provisions and design considerations
Module 2: Losses in Prestress
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
Module 3: Analysis and Design for Flexure
Cracking moment; Kern point; Pressure line; Analysis for Ultimate Strength: Condition at ultimate limit state; Analysis of Rectangular Sections, Analysis of Flanged Sections; Analysis of Partially Prestressed Sections; Analysis of Un-bonded Post-tensioned Beams; Analysis of Complete Behaviour; Design of Members for Flexure: Calculation of moment demand, Preliminary design; Final design, Final design for type 1 and type 2members, Choice of sections, Determination of limiting zone, Post-tensioning in stages, Magnel’s graphical method
Module 4: Analysis and Design for Shear and Torsion
Stress in an uncracked beam, Types of cracks, Components of shear resistance, Modes of failure, Effect of prestressing force, Limit state of collapse for shear, Maximum permissible shear stress, Design of transverse reinforcement, Detailing requirement for shear, Design of stirrups for flange, torsional Stresses in an uncracked beam, Crack pattern under pure torsion, Components of resistance for pure torsion, Modes of failure, Effect of prestressing force on torsional behaviour, Limit state design torsion, Design of longitudinal reinforcement, Design of transverse reinforcement, Detailing requirements for torsion
Module 5: Statically Indeterminate Structures
Analysis and design of continuous beams and frames - Choice of cable profile - linear transformation - concordancy. Cantilever Beams: Analysis, Determination of limiting zone, Cable profile; Continuous Beams: Analysis, Incorporation of moment due to reactions; Pressure line due to prestressing force; Concordant cable profile; Partially continuous beams: analysis at ultimate limit state, Moment redistribution
Module 6: Precast Structure for Modern Buildings and Bridges
Principles and criteria for selection of precast components; Design principles and methodologies for various precast components, Constraints & considerations in precast manufacturing; Good practices in precast design of typical residential precast structure, Good practices in precast design of industrial building