Prestressed Concrete Structures
CE PRESTRESSED CONCRETE STRUCTURES
A t the end of this course the student shall have knowledge of methods of prestressing advantages of
prestressing concrete, the losses involved and the design methods for prestressed concrete elements
under codal provisions.
INTRODUCTION – THEORY AND BEHAVIOUR
Basic concepts – Advantages – Materials required – Systems and methods of prestressing – Analysis of
sections – Stress concepts – Strength concepts – Load balancing concept – Effect of loading on the
tensile stresses in tendons – Effect of tendon profile on deflections – Factors influencing deflections –
Calculation of deflections – Short term and long term deflections – Losses of prestress – Estimation of
crack width .
Flexural strength – Simplified procedures as per codes – strain compatibility method – Basic concepts in
selection of cross section for bending – stress distribution in end block, Design of anchorage zone
reinforcement – Limit state design criteria – Partial prestressing – Applications.
Design of prestressed concrete tanks – Pipes.
Analysis for stresses – Estimate for deflections – Flexural and shear strength of composite members.
PRESTRESSED CONCRETE BRIDGES
General aspects – pretensioned prestressed bridge decks – Post tensioned prestressed bridge decks –
Principle of design only.
TOTAL: 45 PERIODS
1. Krishna Raju N., Prestressed concrete, Tata Mcgraw Hill Company, New Delhi, 1998
2. Mallic.S.K. and Gupta A.P., Prestressed concrete , Oxbord and IBH publishing Co.Pvt.Ltd 1997.
3. Rajagopalan, N” Prestressed Concrete”, Alpha Science, 2002.
1. Ramaswamy G.S.Modern prestressed concrete design, Arnold Heinimen, Newdelhi, 1990
2. LinT.Y., Design of prestressed concrete structures, Asia Publishing House, Bombay, 1995
3. David A.Sheppard, William R and Philphs, Plant Cast precast and prestressed concrete – A
design guide, McGraw Hill,Newdelhi 1992
Dept of Civil