danlb_2000
Premium Member
The easy default answer on new bldgs is that a pit is usually for an elevator shaft. For this, multiple elevators in the bldg maybe? Could be plenty other things too
I doubt that since at least two of them have coaster supports in them.
I’m not certain they will be depressions when the slab is poured. It’s hard to tell on a phone and all the rebar makes things hard to follow, but it look like the rebar continues flat over these areas. So maybe a thickened slab? But it also looks like the angled rebar is sticking up out of these areas.
Yeah, it is hard to tell. It does look like there is a lower layer of rebar since the ladder is sitting over that. In the upper right it does appear that there is rebar at the level of the rest of the slab sticking out over the pit.