VEd = 1.35 x (10 x 6 / 2) + 1.5 x (5 x 6 / 2) = 54.5 kN

As = 0.0013 x 0.3 x 0.6 x 500 = 117 mm^2

The required reinforcement area is calculated as:

As.provided = 4 x π x (16/2)^2 = 804 mm^2