A prestressed concrete rectangular beam of size 500mm by 750mm has a simple span of 9.0m. The beam is subjected to prestressing force with an effective strength of 1700kN. Tendons are the parabolic...

Extracted text: A prestressed concrete rectangular beam of size 500mm by 750mm has a simple span of 9.0m. The beam is subjected to prestressing force with an effective strength of 1700kN. Tendons are the parabolic set up and have eccentricity of 150mm at midspan. The beam carries a uniform distributed load of 40KN/m including beam weight. Compute the stress at the extreme top fiber at the midspan of the beam using load balancing method. (MPa) coce