Q$5$: Design a single corbel projecting from a $350$ mm $350mm$ column is to be designed to support precast beam reaction forces at $100$ mm from the face of the column. The factored vertical load to be carried is $250$ kN $.$ A horizontal force of $50$ kN is assumed to develop to account for creep and shrinkage deformations. The concrete strength is $35$ MPa $($normal density$),$ and the yield strength of reinforcement is taken as $420$ MPa.

In astm methd