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Cover entire concrete floor with steel plate 2

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canwesteng

Structural
May 12, 2014
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A client wants to cover the floor (concrete, not yet constructed) of their entire workshop with steel plate. A previous consultants appears to have suggested to cast it in with the concrete, with nelson studs fastened to the underside of the plate. This seems first: very hard to execute for the poor guy lugging these around on wet concrete, and second: guaranteed to give voids below the plate. Now possibly with holes in the plate for vibrators, this could be done, although I imagine it being a headache trying to level the plate as you'll also be walking on it. My preferred method is casting in some plates with nelson studs and plug welding the floor plate to embedded plates. The client has suggested post installed anchors to fasten the plate, which seems like more work and will leave a bunch of anchors sticking up. Anyone have any experience with something similar, or comments on these methods?
 
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I came up with a design to cast channels into concrete with the flanges facing downward and with headed stud anchors welded perpendicular to the web every foot. They roll these heavy dumpsters up and down the channels and it doesn't damage the concrete.

Plating the entire floor might constitute an OSHA violation though unless they rough it up a little. Maybe use A572 weathering steel.

Why not just cast the concrete flat, lay some plate down, and use countersunk screw anchors every 24"?

Is it an elevated slab? What is the client trying to accomplish? If they're hoping to spread the load out, the effect will be pretty marginal and it'll be partially offset by the weight of the plate.
 

...but enhanced if you deviate from what the owner has recommended. Adhesives would likely develop sufficient strength... there are a lot of sq.in. in a sq.ft. Say 100 psi adhesive x 144 = 14.4 Ksf...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
ground the steel plate... might eliminate shock hazard. They do it in electrical switchyards...

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik
 
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