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A horizontal prestressing force of 500kN is applied to a rectangular beam. The beam has a depth of 450mm and a width of 250mm. The force is applied at a distance of 60mm below the sections x-x axis.
(a) calculate the stress along the edge A-B caused by the applied prestressing force
(b) calculate the stress along the edge C-D caused by the applied prestressing force
(Calculation of bending stresses due to the self-weight of the beam is not required for the question).
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