A pretensioned prestressed concrete beam of span 6.8 m and of size 360 mm x 600 mm is subjected initially to a prestressing force of 1650 kN provided at an eccentricity of 160 mm through out by a straight cable. Area of steel provided is 1650 mm². The beam is subjected to live load of value 20 kN/m. Calculate loss of stress in reinforcement due to different reasons. M50 concrete is used. E=2x105 N/mm²; p = 1.6

A pretensioned prestressed concrete beam of span 6.8 m and of size 360 mm x 600 mm is subjected initially to a prestressing force of 1650 kN provided at an eccentricity of 160 mm through out by a straight cable. Area of steel provided is 1650 mm². The beam is subjected to live load of value 20 kN/m. Calculate loss of stress in reinforcement due to different reasons. M50 concrete is used. E=2x105 N/mm²; p = 1.6

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Applications of Concrete Framing Systems

A concrete frame is a structure formed by the interconnection of beams and columns to form a structural network. In simple terms, it is the basic skeletal structure of a building or any construction. The concrete framing structure is built on a concrete foundation that forms the base of the entire structure. The concrete frame system is built to support floors, roofs, walls, beams, rafters, joists, etc.

Question

A pretensioned prestressed concrete beam of
span 6.8 m and of size 360 mm x 600 mm is
subjected initially to a prestressing force of
1650 kN provided at an eccentricity of 160 mm
through out by a straight cable. Area of steel
provided is 1650 mm². The beam is subjected
to live load of value 20 kN/m. Calculate loss of
stress in reinforcement due to different reasons.
M50 concrete is used. E=2x105 N/mm²; p = 1.6

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