RCC Structures Design
The load stress of a section can be reduced by

Decreasing the lever arm
Replacing larger bars by greater number of small bars
Increasing the total perimeter of bars
Replacing smaller bars by greater number of greater bars

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RCC Structures Design
If the length of a combined footing for two columns l meters apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where x̅ is the distance of centre of gravity of column loads).

y = L - (l - x̅)
y = L/2 - (l + x̅)
y = L/2 - (l - x̅)
y = L/2 + (l - x̅)

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