Case 2: Design as a reinforced pedestal Adopt minimum size for pedestal (10 mm clearance) = 310 x 310 mm IS 456 CI. 34.4 Safe pressure = 11.25(3.1/3.0) = 11.63 Load carried by pedestal is equal to 11.63 x 310 x 310 x 10"3 = 1117 kN Balance load = 1700 - 1117 = 583 kN . . 583 xlO3 1£tA 2 = 1614 mm As required = 0.87x415 Percentage of steel ...