GITAM University Prestressed Concrete Syllabus
Introduction, Basic concepts of prestressing, need for high strength steel and concrete, advantages of prestressed concrete. Materials for prestressed concrete, high strength concrete and high strength steel. Prestressing systems (1) Fressinet System (2) Gifford Udall, Tensioning devices, anchoring devices, Pretensioning and Post tensioning, Grouting.
Prestressing losses due to Elastic shortening, shrinkage and creep of concrete friction, slip of
anchorage etc. I.S. code provisions.
Analysis of prestressed members, assumptions, pressure or thrust line concept of load balancing, cable profile, kern distance, stress in tendons as per IS 1343, cracking moment.
Limit state design of flexural members, I.S. code provisions, design of symmetrical beams, Design
for shear, I.S. code provisions.
Transfer of Prestress (Pretensioned members), Transmission length, bond stress, Transverse tensile stress, End Zone reinforcement, flexural bond stress, I.S. Code Provisions. (b) Anchorage zone in post tensioned members, stress distribution in end block, Guyon’s method of approach of analysis of end block (Not more than 2 cables).
1. P. Dayaratnam, Prestressed Concrete, Oxford & IBH Publishing, Reprint 1996.
2. T.Y. Lin and Ned. H. Burns, Design of Prestressed Concrete Structures, John Wiley & Sons, 3rd edition.
3. N. Krishna Raju, Prestressed Concrete, Tata McGraw Hill, 3rd edition, eleventh reprint 2003.