Can Ram concept be used to design a monolithic Slab-on-Grade (BRAB) Foundation?

Thanks Seth.  The BRAB and WRI are more prescriptive methods, and the examples I have don't address point loads.  Which is why I want to use Ram Concept to be sure the moments induced by point loads is accounted for.  Would you recommend modeling the Area springs under just the beams/ribs or under the entire slab?  (Commentary from the Texas Foundation Performance-Structural committee indicated the slab and beams would both be on the area springs.)

Thanks Seth.  The BRAB and WRI are more prescriptive methods, and the examples I have don't address point loads.  Which is why I want to use Ram Concept to be sure the moments induced by point loads is accounted for.  Would you recommend modeling the Area springs under just the beams/ribs or under the entire slab?  (Commentary from the Texas Foundation Performance-Structural committee indicated the slab and beams would both be on the area springs.)

Area springs in Concept are applied at the bottom of concrete, the soffit elevation by default.  While the vertical stiffness is usually all anyone cares about the springs can have lateral stiffness too, and this is the common means of preventing sliding. If you model springs at multiple elevations the lateral reaction eccentricity can account for a lot of bending, so do be careful if you apply springs at multiple elevations.