JNTUK R16 4-2 Prestressed Concrete Material/Notes PDF Download
Students those who are studying JNTUK R16 Civil Branch, Can Download Unit wise R16 4-2 Prestressed Concrete Material/Notes PDFs below.
JNTUK R16 4-2 Prestressed Concrete Material/Notes PDF Download
OBJECTIVES:
- Familiarize Students with concepts of prestressing
- Equip student with different systems and devices used in prestressing
- Understand the different losses of prestress including short and long term losses
- Familiarize students with the analysis and design of prestressed concrete members under flexure, shear and torsion
UNIT-1
Basic concepts of Prestressing- Advantages and Applications of Prestressed Concretes, High Strength Concrete- Permissible Stresses, Shrinkage, Creep, Deformation Characteristics, High strength Steel- Types, Strength- Permissible Stresses- Relaxation of Stress, Cover Requirements.
UNIT-2
Prestressing Systems- Introduction, Tensioning devices, Pre-tensioning Systems, Post tensioning Systems, Basic Assumptions in Analysis of prestress and design, Analysis of prestress, Resultant Stresses at a section- pressure line- Concepts of load balancing- Stresses in Tendons, Cracking moment.
UNIT-3
Losses of Pre-stressing- Loss of Pre-stress in pre-tensioned and post tensioned members due to various causes -Elastic shortening of concrete, shrinkage of concrete, creep of concrete, Relaxation stress in steel, slip in anchorage, differential shrinkage- bending of members and frictional losses- Total losses allowed for design
UNIT-4
Design for Flexural resistance- Types of flexural failure – Code proceduresDesign of sections for flexure- Control of deflections- Factors influencing DeflectionPrediction of short term and long term deflections.
UNIT-5
Design for Shear and Torsion- Shear and Principal Stresses- Design of Shear reinforcements- Codal Provisions- Design for Torsion, Design for Combined bending, shear and torsion.
UNIT-6
Transfer of Prestress in pre tensioned members- Transmission length- Bond stresses- end zone reinforcement- Codal provisions- Anchorage zone Stresses in Post tensioned members- Stress distribution in end block- Anchorage Zone reinforcement.
TEXT BOOKS:
- Prestressed Concrete, N. Krishna Raju, Tata McGraw hill
- Prestressed Concrete, S. Ramamrutham
REFERENCE BOOKS:
- Prestressed Concrete, P. Dayaratnam
- Prestressed Concrete, T. Y. Lin & Burns, Wiley Publications
OUTCOMES:
- Understand the different methods of prestressing
- Estimate effective prestress including the short and long term losses
- Analyze and design prestressed concrete beams under flexure and shear
- Understand the relevant IS Codal provisions for prestressed concrete
I hereby requsting for to provide weightage of all ciontents
which is easy to pass the subject
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