I'm look for this article by Kenneth E. Wilson. It was published in the February 1997 issue of the Journal of Bridge Engineering. If anyone has a .pdf of it, I'd really appreciate it.
Thanks, but I wanted to look at the full paper. I found most of it on the web, but a few pages are missing. We analyze existing foundations and most will have the eccentricity outside the kern.
Sorry, I don't have that paper. I used the equation from "Structural Foundation Designer's Manual", 2006, by Curtin, Shaw, Parkinson & Goldin. It is a great reference.