You can probably just ignore the slab step altogether for modeling. Alternately, you can make some fake, infinitely rigid hangers or posts to connect to whichever slab you decide to offset.
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
@BAretired span has five bays central bay has stairs and 2 bays on both sides has slabs at 10.5' and 13' height. side bays are of 23.5' and central bay is 14'.i need to place one slab at 10.5' and second slab at 13'. so I have idea to put one slab on top and second at the bottom of beam.
@Ktook how to model these hangers in SAP2000.