Subject Syllabus
CE702 (A) - Prestressed Concrete Structures
CIVIL · Semester 7
Course Modules
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Basic concepts – Advantages – Materials required – Systems and methods of prestressingAnalysis of sections – Stress concept – Strength concept – Load balancing conceptEffect of loading on the tensile stresses in tendons – Effect of tendon profile on deflectionsFactors influencing deflections – Calculation of deflections – Short term and long term deflectionsLosses of prestress – Estimation of crack width
Basic assumptions for calculating flexural stressesPermissible stresses in steel and concrete as per I.S.1343 CodeDesign of sections of Type I and Type II post-tensioned and pre-tensioned beamsCheck for strength limit based on I.S. 1343 CodeLayout of cables in post tensioned beams – Location of wires in pre-tensioned beamsDesign for shear based on I.S. 1343 Code
Factors influencing deflections – Short term deflections of uncracked membersPrediction of long term deflections due to creep and shrinkage – Check for serviceability limit state of deflectionDetermination of anchorage zone stresses in post-tensioned beams by Magnel's method, Guyon's method and IS1343 codeDesign of anchorage zone reinforcement – Check for transfer bond length in pre-tensioned beams