Quote:
Originally Posted by topfiverecords
Platform doesn’t have that kind of slope. It has ramps between levels. The slabs are only pitched for drainage.
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Bill Bumface's 3' of headroom is an exaggeration, but you're sorely mistaken here. The building does
not have ramps between levels, and the slabs are not pitched just for drainage: the entire thing from the third floor to the top is one long, continuous ramp.
That said, the crux of the problem is what Bill Bumface was getting at: a flat subfloor from one end of the building to the other would create about a metre worth of difference in floor height. It's just wasted void space at that point, it'd be silly. If you didn't want to float every suite's floor independently as I suggested, maybe you do it in chunks, but you're still going to have to step the floor every few units. That creates a significant problem with circulation around each level: you'd be introducing steps in the public corridor, which for egress purposes
you can't do.
So you're kind of married to just accepting that the floor is sloped. Without every suite having a levelling subfloor built you'd have to shim eeeeeeeverything. Walls would have to be built with the bottom of every baseplate cut to make the walls plumb, otherwise doors would perpetually swing open or close on themselves. Doing this is just so much more work than is usually necessary...
As mentioned previously there's no HVAC and plumbing, it's all good to be fit out, and to typically make the plumbing work you're going to have wastewater stacks and water risers grouped in chases all over the place, which means lots and lots of holes to be cored through the floor slabs. Not an impossible task, but do you have any idea how incredibly ####ing annoying it is to core holes that aren't perpendicular to the slab? Every single core will need to be offset to make it vertical.
I also seriously wonder about the egress, irrespective of the floor slope. Right now it's a minimal occupancy; with offices or dwelling units, will the two stairwells at the west and east ends be enough? I suspect a couple stairwells will need to be added in the middle, halfway across the building. Not insurmountable, but not "ready to be converted"... And here's the rub:
Quote:
Originally Posted by bizaro86
... as a practical matter it would almost certainly be more economically efficient to tear it down when replacing it with a new use is the right choice.
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For all the trouble this sloped structure presents, you might as well just tear it down and start over.