JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Overview

Course outcomes: At the end of the course, students will be able to

• 1. Find out losses in the prestressed concrete. Understand the basic aspects of prestressed concrete fundamentals, including pre and post-tensioning processes.
• 2. Analyse prestressed concrete deck slab and beam/ girders.
• 3. Design prestressed concrete deck slab and beam/ girders.
• 4. Design of end blocks for prestressed members.

UNIT - I

Design of Prestressed Concrete Sections- Design of sections for flexure, Minimum section modulus- prestressing force- Limitation of prestress in long spans- limiting zone for the prestressing force- Design of sections for the limit state of collapse in flexure-Design of sections for axial tension.

UNIT - II

Statically Indeterminate Structures: Primary and secondary moments – methods of Analysis of secondary moments. –Analysis of continuous beams and simple portal frames (single bay and single storey) Composite Beams: Different Types- Propped and Unpropped- stress distribution- Differential shrinkage- Analysis of composite beams- General design considerations.

UNIT - III

Design of sections for Compression and Bending: Load- Moment Interaction curves for prestressed concrete short columns-Design of long prestressed columns-design of prestressed concrete compression members in biaxial bending- practical design considerations-design of prestressed sections for shear and torsion.

UNIT - IV

Prestressed Concrete Slabs: Types of prestressed concrete floor slabs- design of prestressed concrete one way and two-way slabs—design of prestressed concrete simple flat slabs and continuous flat slab floors.

UNIT - V

Prestressed Concrete Pipes, Tanks, Poles and Piles: Circular prestressing- Types of prestressed concrete pipes- Design of prestressed concrete pipes- analysis and design of prestressed concrete tanks-Design of prestressed concrete poles, partially prestressed pretensioned poles-advantages of prestressed concrete piles-types of prestressed concrete piles- design considerations- pile reinforcements- pile shoes-sheet piles.

REFERENCES:

• 1. prestressed concrete, krishnanraju N, Tata Mc Graw Hill, New Delhi. 1981.
• 2. design of prestressed concrete structure, Lin T.Y., Asia Publication house, 1995.
• 3. prestressed concrete by k.v. muthu PHI learning Pvt. CEO
• 4. limited state design of prestressed concrete, Gutan Y, Applied science publishers, 1972.
• 5. Is:1343-2012-code of practice for prestressed concrete R19 M.TECH STRUCTURAL ENGG. M.TECH.- I YEAR- II SEMESTER STRUCTURAL ENGINEERING