WITH EFFECT FROM THE ACADEMIC YEAR 2013- 2014
CE 408
PRE-STRESSED CONCRETE
Instruction 4 Periods per week
Duration of University Examination 3 Hours
University Examination 75 Marks
Sessional 25 Marks
UNIT-I
Introduction: Basic concepts, materials, permissible stresses - systems of prestressing. Losses of prestress in pre-tensioned and post-tensioned members.
UNIT-II
Design: Analysis and Design ofPSC beams for flexure using elastic analysis of simple and composite sections.
UNIT-III
Design of sections for flexure: Design of R.C. section by Elasti theory for flexure.
Design for Shear: Shear and principles stresses, Design ofR.C. section for shear, cracked and uncracked sections - codal provisions.
UNIT-IV
Deflections: Importance of deflections, factors influencing deflection, codal provisions, short terms and long-term deflections - computation Cable profiles, Kern points, limiting points - load balancing method problems on load balancing method.
UNIT-V
End blocks: Nature of stresses, stress distribution - Magnel andGauyon’s Methods - codal provisions - Design by Guyon’s method.
Continuous Beams: Advantages of continuous members - Cod provisions - Analysis of two span continuous beams - Concordant cable profiles.
Suggested Reading :
- 1.N. Krishna Raju, Prestressed Concrete, Tata McGraw Hill, 2000.
- 2.G .S. Pandjt and S.P. Gupta, Prestressed Concrete, CBS Publication, 1995.
- 3.Dayarathnam, Prestressed Concrete, Oxford & IBH Publication.