RAMSS Concrete Beam Eccentricities

Is there a "best practices" method for modeling concrete beams with eccentricities? Please see attached picture. All perimeter girders on this specific project (66" pan joists, typ) have a grid --> pan dimension held at 1'-6" creating a 2" eccentricity. Are rigid links an option in RAMSS? Any help is the right direction is appreciated.

Thanks!