The forces on gravity members supported by foundations can be taken from one of three sources: RAM Steel, RAM Concrete Analysis or a material specific source.

Use the option in the Criteria > Forces dialog box to indicate which program will be the source of the forces on gravity members.

If the third option is selected, forces on steel and 'other' columns will come from RAM Steel. Forces on concrete columns and all walls will come from RAM Concrete Analysis.

If there is a diaphragm in the model that has two-way slab action, the RAM Steel option will not be available. Upon entering RAM Foundation, the Criteria - Forces option is changed to the third option: material specific.

See Sections 3.4 and 3.5 for a discussion of the effects of selecting each option.