A rectangular concrete beam 300 mm x 800 mm supports two concentrated loads of 30 kN each at the third point of a span of 9m. If the eccentricity of the cable profile is 100 mm for the middle third portion of beam, calculate the prestressing force required to balance the bending effecting effect of concentrated loads (neglect the self wt. of the beam).

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A rectangular concrete beam 300 mm x 800 mm
supports two concentrated loads of 30 kN each
at the third point of a span of 9m. If the
eccentricity of the cable profile is 100 mm for the
middle third portion of beam, calculate the
prestressing force required to balance the bending
effecting effect of concentrated loads (neglect the
self wt. of the beam).
Transcribed Image Text:A rectangular concrete beam 300 mm x 800 mm supports two concentrated loads of 30 kN each at the third point of a span of 9m. If the eccentricity of the cable profile is 100 mm for the middle third portion of beam, calculate the prestressing force required to balance the bending effecting effect of concentrated loads (neglect the self wt. of the beam).
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