A 5m prestressed concrete simple beam having a cross section of 200mm x
400mm is subjected to prestressing force with an effective strength of 1500Kn.
Tendons are in parabolic set up and having eccentricity of 100mm at midspan. The
beam carries a total uniform distributed load of 40kn/m including beams weight.
Det. the total stresses of the extreme top fiber at midspan using load balancing method.