Pipe support on concrete slab, OK?
Pipe support on concrete slab, OK?
(OP)
From a ignorant ME, I have a existing 8" concrete slab with 2 layers of 6x6 WWF 10 guage for rebar. My question is can I place a 9'-5" W6x15 Column to support 1-3" pipe assumed to be full of water? The slab is 50'x50' and I'm in the corner 15' off of each edge.
My concern in over turning forces and as a ME my initial response is to "red head" a pipe support into anything that has concrete.
My concern in over turning forces and as a ME my initial response is to "red head" a pipe support into anything that has concrete.






RE: Pipe support on concrete slab, OK?
If the loads above are negligible and this is a slab on grade, have them saw cut out a 3'-0" square, pour a 12 inch footing with anchors embedded in it and use that. If there are seismic, water pressure or wind loads, get a structural engineer to design the whole support.
RE: Pipe support on concrete slab, OK?
Get more info from the pipe stress person to determine maximum bending moment. Consider the slab as plain concrete. It might be okay if the column (free standing?) is to just support a 3" dia "cold" water pipe.
If the pipe support is outdoor, you need to conside wind on the column and on the pipe. Another thing usually critical is the slab movement (if frost heave or consolidation settlement presents), sometimes the movement excesses piping's tolerance.
RE: Pipe support on concrete slab, OK?
RE: Pipe support on concrete slab, OK?
RE: Pipe support on concrete slab, OK?
I really don't think enough information has been given to say whether it would work or not.
RE: Pipe support on concrete slab, OK?
What additional info do I need to be concerned with? I saw that JedClampett stated a 1' footing would the additonal 4" make that much a difference.
The support is outside and although I listed the line as full of water it is a relief valve discharge line so it is empty 99.9% of the time.
The existing slab also has 4 vessel foundations cut into it. Add it is 17' to the next pipe support on one end and 5' on the other.
Thanks for the help guys (and ladies, if applicable)
RE: Pipe support on concrete slab, OK?
I don't think anyone wants to tell you what you are asking is alright, and you get the impression just because the slab works means the base plate to slab connection itself is no big deal.
RE: Pipe support on concrete slab, OK?
RE: Pipe support on concrete slab, OK?
In my opinion, your proposal is reasonable for the conditions, even though, as others have pointed out, it is not optimal.