Perimeter concrete wall with an L-shaped footing

[bagigio]

I am designing an L-shaped footing for a perimeter concrete wall. My service-level gravity force is 12 kips/ft and 5 kip/ft for live load. What is the best design approach for designing this footing? I have been using Enercalc for the design of it, but the footing size keep increasing without converging to any tangible result.

Can anyone point me to a sample calculation or get some direction on how to approach this analysis? The top of the wall is restrain by a concrete diaphragm and the bottom will eventually restrained by a slab on grade.

Thanks,

 

[AELLC]

Enercalc won't help because the assumption of course is the footing is essentially pinned to the wall. If you assume full fixity of wall to footing, then the bearing pressure on the footing is uniform, and the that is the opposite bound of the result.

 

[AELLC]

See attached sketch.