A concrete beam prestressed with a parabolic tendon is shown in the sketch. The eccentricity of the tendon is measured from the centroid of the cross-section. The applied prestressing force at service is 1620 kN. The uniformly distributed load of 45 kN/m includes the self-weight.

A concrete beam prestressed with a parabolic tendon is shown in the sketch. The eccentricity of the tendon is measured from the centroid of the cross-section. The applied prestressing force at service is 1620 kN. The uniformly distributed load of 45 kN/m includes the self-weight.

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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Question

A concrete beam prestressed with a parabolic
tendon is shown in the sketch. The eccentricity
of the tendon is measured from the centroid of
the cross-section. The applied prestressing force
at service is 1620 kN. The uniformly distributed
load of 45 kN/m includes the self-weight.
500
750
145
Cross-section
(tendon not
shown)
7300
Sectional elevation
(All dimensions are in mm)
The stress (in N/mm2) in the bottom fibre at mid-
span is

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