Min. Standard Thickness of Two Way Slab
Min. Standard Thickness of Two Way Slab
(OP)
In my area (Northeast US) I do not typically see two way elevated slabs less than 8". Do others see/use less than this and if so what is a lower bound? I would think that 6" is pretty thin once tolerances and unknowns are accounted for, i.e. the 'd' being off by 1/2" in the field is a much larger percentage at 6" slab compared to 8". 7"?






RE: Min. Standard Thickness of Two Way Slab
But I bet you'll get a response from womeone who does it all the time.
RE: Min. Standard Thickness of Two Way Slab
RE: Min. Standard Thickness of Two Way Slab
there are equations in that section for minimum thickness h between supports.
RE: Min. Standard Thickness of Two Way Slab
RE: Min. Standard Thickness of Two Way Slab
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Min. Standard Thickness of Two Way Slab
RE: Min. Standard Thickness of Two Way Slab
RE: Min. Standard Thickness of Two Way Slab
It was most ridiculous slab design I have ever seen - design was probably dated early 1970's. We were tasked with repairs to corroded PT anchorages, and destressing was undertaken by chipping concrete behind the live-end anchorages. Bastard of a project.
I have a distaste for VERY thin slabs, be it RC or PT.
RE: Min. Standard Thickness of Two Way Slab
http://www.nceng.com.au/
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RE: Min. Standard Thickness of Two Way Slab
These often have 4 1/2", sometimes even 4". Supported on beams/walls though, not columns.
I've also come across really thin one way ribbed slabs from that era. 2.5" spanning one way between the ribs with a central layer of mesh, 2.5" wide ribs with a single bar bottom, and no shear reinforcement.
We specify 150mm slabs all the time.
RE: Min. Standard Thickness of Two Way Slab
My approach to selection of flat plate thickness is to consider punching shear first. This of course involves spans and column sizes, but if a flat plate works in punching shear, it will usually work in bending strength and serviceability.
RE: Min. Standard Thickness of Two Way Slab
RE: Min. Standard Thickness of Two Way Slab