A rectangular footing 2.1 m x 3.2 m x 0.37 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 363 kN LL = 291 kN f'c = 21 MPa  Fy = 415 MPa  Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPa.

A rectangular footing 2.1 m x 3.2 m x 0.37 m thick supports a 300 mm square column at its center.

Column loads are service conditions:

DL = 363 kN

LL = 291 kN

f'c = 21 MPa 

Fy = 415 MPa 

Concrete cover to the centroid of steel reinforcement = 100 mm

Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPa.