13.3.3 Two-Way Isolated Footings
(a) Reinforcement in the long direction shall be distributed uniformly across entire width of footing.
(b) For reinforcement in the short direction, a portion of the total reinforcement, γsAs, shall be distributed uniformly over a band width equal to the length of short side of footing, centered on centerline of column or pedestal. Remainder of reinforcement required in the short direction, (1 — γs)As, shall be distributed uniformly outside the center band width of footing, where γs is calculated by:
where β is the ratio of long to short side of footing.