CE 76521
Course Objectives:
To introduce the fundamental principles of the structural behavior and design criteria of Prestressed Concrete structures with special focus on Limit State Methods of Design. The Students will learn to use output of structural analysis to design different elements of prestressed Concrete Structures according to Codal Provisions and detailing of Tendons. Finally, the students will be able to analyze and design of prestressed Concrete structures for Gravity Loads and lateral loads. The Course also includes key features of Codal provisions and Detailing of Prestressed Concrete using National and international Building Codes of Prestressed Concrete.

  1. Introduction
    (3 hours)
    1. Historical development
    2. Basic principles of prestressed Concrete
    3. Types of Prestressing
    4. Pretensioning systems
    5. Post Tensioning systems
    6. Prestressed Systems and End Anchorages
    7. Prestressed Concrete Vs reinforced Concrete
    8. Advantages and disadvantages of prestressed Concrete
    9. Application of Prestressed Concrete
  2. Materials
    (3 hours)
    1. Composition of Prestressed Concrete
    2. Characteristics of Concrete
    3. Characteristics of High Tensile Steel
    4. AlternativeMaterials
    5. Grouting
    6. High-Strength Concrete and High-Performance Concrete
  3. Losses in Prestress
    (6 hours)
    1. Different types of losses in Prestressed Concrete
    2. Estimation of Losses in Prestress
    3. Total Amount of Losses
    4. Deviation of Tendons
    5. Examples of Losses of Prestress
  4. Analysis and Design of Sections for Flexure
    (12 hours)
    1. Principle of Analysis
    2. Pretensioned Method of Prestressing
    3. Post Tensioned methods of Prestressing
    4. Homogeneous Beam Approach
    5. Load Balancing Approach
    6. Stresses in steel due to loads
    7. Kern Distance and Efficiency of sections
    8. Tendon Profile
    9. Pressure Line
    10. Simplified Code Procedures for design of flexures
    11. Strength and Serviceability Limit states
  5. Analysis and Design of Sections for Shear, Bond and Torsion
    (12 hours)
    1. Shear-General Theory
    2. Shear-Ultimate Limit State Provision in IS and British Codes
    3. Examples on shear
    4. Bond in Prestressed Concrete
    5. End Zone stresses
    6. Torsion in Prestressed Concrete
    7. Design of End Blocks
    8. Provisions in End block
    9. Examples on Anchorage and End Zones
    10. Design of reinforcement for torsion, shear and Bending
  6. Analysis and Design of indeterminate Prestressed Beams and Frames
    (9 hours)
    1. Introduction
    2. Effect of Prestressing in Indeterminate Structures
    3. Methods of Achieving Continuity of Prestressing
    4. Methods of analysis
    5. Concordant Cable Profile
    6. Design of Continuous Beam with examples
    7. Design of Portal Frame with examples

Project and assignment

  1. Jain A.K., "Reinforced Concrete Design", Nem/chand & Bros, Roorkee.
  2. Rajukrishna N., "Prestressed Concrete',
  3. Ramamrutham S, "Prestressed Concrete",
  4. Kong F. K. & Evans R. H., "Reinforced and Prestressed Concrete"
  5. Relevant Professional codes of Practice for prestressed concrete

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