Economically unlikely, but technically possible. But in almost all the cases I have seen
there was a strap beam provided to connect the footing to another.
Cantilever footings are generally used at the periphery of the buildings where the
columns are too close or on the periphery. Hence the columns has to be placed with
considerable eccentricity. due to this eccentricity there are huge moments created at the
base of the column which causes overturning effects. Hence to overcome these
overturning moments a restoring moment/stabilizing moment is required to be
produced, mostly by the self weight of footing and overburden soil over the footing.
Since the cantilever footing is connected with a strap beam with another footing the
moments are resisted by a combined effect of the self weight of both columns, footing
and overburden soil pressure from both footings.
In our case, considering there is no strap beam, the plan dimensions an