Answer Posted / dr.eng.mustefa

moment at the face of column is main for footing design..
even tapering may not be needed as it is done only to save
concrete as steel is required in free end

but in case of deep footings more than 1.5 feet double
reinforcement is given at top and botttom
,you know that punching force and wide beam forces are
considered; by leaving the place covered by the column
dimenshions,and taking critical sections arround the
footing. I think it is enough Answer.

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