Problem $3$

An interior column for a tall concrete structure carries total service loads DL $=500$kips

and $L=550$ kips. The column size is $22"$x$22"$ in cross section and will be supported on a

square footing, with the bottom of the footing $6$ ft below grade. Design the footing,

determining all concrete dimensions and amount of reinforcement. No shear

reinforcement is permitted. The allowable soil bearing pressure is $3$ TSF$.$ f$\text{'}$c $=5$ksi and

fy $=60$ksi