A = ? 1 1/3 113 · 15 m 300 mm 413 B=65 MPa
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A concrete beam AB of span 15 m is post-tensioned by a cable which is concentric at supports A and B and has an eccentricity of 300 mm in the one-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 wires if the stress at B is to be 65 MPa. Assume the coefficient of friction between the cable duct and concrete as 0.56 and the wobble friction coefficient as 0.0018/m.
Transcribed Image Text:A
= ?
1
1/3
113
· 15 m
300 mm
413
B=65
MPa
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