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(d) A concrete beam AB of span 12 m is post-tensioned by a cable which is concentric at supports A and B and has an eccentricity of 200 mm in the mid-third span with a linear variation towards the supports. If the cable is tensioned at the jacking end A. what should be the jacking stress in the wire if the stress at B is to be 1000 N/mm²? Assume the coefficient of friction between the cable duct and concrete as 0.55 and the friction coefficient for the wave effect as 0.0015/m.

(d) A concrete beam AB of span 12 m is post-tensioned by a cable which is concentric at supports A and B and has an eccentricity of 200 mm in the mid-third span with a linear variation towards the supports. If the cable is tensioned at the jacking end A. what should be the jacking stress in the wire if the stress at B is to be 1000 N/mm²? Assume the coefficient of friction between the cable duct and concrete as 0.55 and the friction coefficient for the wave effect as 0.0015/m.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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(d) A concrete beam AB of span 12 m is post-tensioned by a cable which is concentric at supports A and B and has an eccentricity of 200 mm in the mid-third span with a linear variation towards the supports. If the cable is tensioned at the jacking end A. what should be the jacking stress in the wire if the stress at B is to be 1000 N/mm²? Assume the coefficient of friction between the cable duct and concrete as 0.55 and the friction coefficient for the wave effect as 0.0015/m.
Transcribed Image Text:(d) A concrete beam AB of span 12 m is post-tensioned by a cable which is concentric at supports A and B and has an eccentricity of 200 mm in the mid-third span with a linear variation towards the supports. If the cable is tensioned at the jacking end A. what should be the jacking stress in the wire if the stress at B is to be 1000 N/mm²? Assume the coefficient of friction between the cable duct and concrete as 0.55 and the friction coefficient for the wave effect as 0.0015/m.
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