5.5 Eccentrically loaded spread footings For eccentrically out of the middle 1/3 of a L/2=e+L'/3 footing,a method used by many structural designers r(a) assumes a triangular 1 3B(L/2-e) ≤qa pressure distribution. 喝 周 超 5.5 Eccentrically loaded spread footings ▪ For eccentrically out of the middle 1/3 of a footing, a method used by many structural designers assumes a triangular pressure distribution. ( ) ( )          − = =  = +  qa B L e P q BL q P L e L 3 / 2 2 2 / 2 / 3