Question on using RAM Concept

Dear Officer:

I am currently using RAM Concept to analyze a reinforced concrete slab (RC slab) with stepped beams (slab elevation varies at different locations). I have the following questions:

1. following ACI-318, when calculating the concrete slab and beam strength, the phi for moment is 0.9, for shear is 0.75 etc. If I want to analyze a RC slab with phi=1 for moment, shear, torsion, may I ask if there is an option to do this setting?

2. it seems like RAM can report slab strip moment, torsion, shear at each column strip and middle strip. Based on the description of 40.12.3 in the manual, it seems like the torsion is calculated by integrating the vertical shear of the section to its geometry centroid. If this is true, if I want to check the slab or beam under torsion, may I ask if it is proper to use "torsion" or "twist" for our torsion design force?

3. may I ask if RAM considers any bending, torsional or other stiffness modifiers during the demand calculation?

Thank you for your help.

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