To:Legner, your solution was interesting.In my situation, I considered the grade beam to span between buttress walls that are supporting masonry walls above them. The grade beams were designed to limit deflection to 1/8 in. This was to prevent cracking in the masonry walls. I ignored the soil...
Grade Beam supporting a masonry wall and supported at it's endes by buttress walls! I think analizing as a combined footing sounds the most accurate. What do you think?