I realize the ratios will change, that's not the issue. Think of it like this: I size my footing based on service-level loads and (for example) it is 6' x 6' and the eccentricity is 2.5' from the center of the footing (i.e. outside the kern due to high moment due to wind and relatively low...
But you can make the argument that the service-level 'e' is the appropriate eccentricity because that is the eccentricity that the footing is supposedly seeing, we've just increased the magnitude of the load on it to provide a factor of safety.
If I was designing this before the LRFD method...
I am designing a spread footing for a column that is part of a moment frame and am assuming that the column/footing joint is rigidly connected to reduce the deflections of my frame.
Say my service-level gravity force is 300kips and the associated moment is 150 ft-kips.
When checking bearing...
