bookowski
Structural
- Aug 29, 2010
- 983
My understanding is that ACI 117 allows for +/- 1" at slab edges in/out tolerance in plan (horizontal deviation). Is that correct? Is there any limit for floor to floor alignment/variation? The +/- 1" means that you could have +1" at one floor, -1" at the next. So building facade connections need to account for up to 2" variation in/out between floors if the tolerances are only limited to 117? It also allows +/-3/4" up/down in elevation - so this adds another 1-1/2" up down and that doesn't account for deflections. If the above is correct it seems that more stringent tolerances should be specified, or at least additional floor to floor variation limitations. Are 117 tolerances standard spec?