Construction clear span!
Construction clear span!
(OP)
What is the meaning of maximum construction clear span as indicated in metal deck catalogs? I would appreciate your input.
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RE: Construction clear span!
I've never heard of maximum construction span.
RE: Construction clear span!
BA
RE: Construction clear span!
Mike McCann
MMC Engineering
RE: Construction clear span!
RE: Construction clear span!
BA
RE: Construction clear span!
In the dry and cured state, decks with concrete can span much longer distances. i.e. if you shored the deck when the concrete was poured, you would be able to achieve much longer spans when the concrete has cured.
See the verco catalog they have additional explanations.
RE: Construction clear span!
RE: Construction clear span!
RE: Construction clear span!
RE: Construction clear span!
No such listings are given for P-3615 steel deck (non-composite).
BA
RE: Construction clear span!
ht
RE: Construction clear span!
RE: Construction clear span!
Sorry, I missed this one earlier. It's been a while since I worked for a steel fabricator but if my memory serves me well:
The Steel Deck Institute requires the design loads during construction to be the weight of the deck and wet concrete PLUS the greater effect of either 20 psf uniform over the span, or a 150 pound load on a 12" section. It also has some deflection limit requirements which is limited to, if I remember correctly, L/180. I don't think it's allowed to deflect more than 3/4" under the deck and wet concrete loading condition.
Basically, it is what StructuralEIT said but most engineers don't know that the "unshored spans" are based on this requirement. I wouldn't know it if I hadn't worked for a fabricator. Vulcraft calls it what it is, but most of us know it as StructuralEIT said.
Stazz:
Centerline to centerline for most apllications. Flange tip to flange tip if I need it.