Design of Shallow Foundation (Isolated Footings)

1.Design a square footing for a column size of 400x400. The compression axial load for the load combination of (1.5 DL + 1.5 LL) is 2000 KN. The safe soil bearing capacity is 150 KN/m2 at a depth of 2 metres below E.G.L. Participants are free to go for either a tapered or stepped footing. Besides the total axial load, also account for the self-weight of the footing and soil above it. Assume M25 concrete grade. Do the following checks:

• Provide sufficient depth and longitudinal steel for resisting bending and shear
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• If the gross bearing pressure under the footing is within safe bearing capacity
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• Sufficient anchorage for column steel into the footing
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• Provide a simple sketch showing the size of the footing, maximum and minimum depth of the section, flexural reinforcement in both directions and anchorage of column steel.