Question
Structural Engineering Question on Concrete
An inverted T-shaped concrete beam (B1) in the figure, with centroidal axis X - X, is subjected to an effective prestressing force of 1000 kN acting at the bottom kern point of the beam cross-section. Also consider an identical concrete beam (B2) with the same grade of concrete but without any prestressing force.
The additional cracking moment (in kN. m) that can be carried by beam B1 in comparison to beam B2 is _____ (rounded off to the nearest integer).
Answer
The answer is: 299 or 301 (approx.)