You may have an issue with bolts hitting the k region of the beam. If upsizing isn't an option, I'd consider weld it to column cap plate or weld a "base plate" on the bottom of the beam and bolt that instead.
Also, why is a W12x19 sitting on a column? Is there no perpendicular beam?
I've done your scab solution. In my case, we were adding load to an existing foundation (about +10%). The existing footing was an 8ft wide continuous "grade beam" footing. We drilled vertical bars into the top of the existing footing, and added an 8ft square "scab" on top to justify engaging a...
