After mauling this over a bit more I think I can deal with the concrete, slab insulation, interior footings and subbase fairly easily with a slab depression, however the slab reinforcement is a bit more challenging. Even the footing top bars are a bit problematic ( they need to be dropped as well) as one can see in the image below:
At the moment I don’t have a good answer for how to deal with slab depressions when combined with slab reinforcement. If anyone has a good idea I’m open to suggestion.
This type of slab depression (4") is fairly typical for a garage that is attached to the main residence.
View model here:
I’m not saying there are not solutions to this problem but they become very computationally expensive (ie. boolean subtraction) and are not at all optimal.