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Plywood/light-gauge steel roof diaphragm
2

Plywood/light-gauge steel roof diaphragm

Plywood/light-gauge steel roof diaphragm

(OP)
The 2003 IBC has tables for nominal shear values for light-gauge steel framed walls with plywood or gypsum sheathing, but it doesn't have similar tables for roof diaphragms.  I have plywood deck over cold-formed steel joists, but I can't find any load tables (or any direction at all) in the 2003 IBC.  Does anybody have any suggestions for finding these values?

Interestingly enough, the 2006 IBC has taken out the shear wall tables, too, telling you to check out AISI's standard for lateral design.  Thanks a lot, IBC!

RE: Plywood/light-gauge steel roof diaphragm

2
HUD & NAHB have a publication "Innovative Residential Floor Construction: Horizontal Diaphragm Values for Cold-Formed Steel Framing" that gives allowable values for screw fasteners.

Several manufacturers of pneumatic fasteners (ITW Buildex, etc.) have ICC evaluation reports with diaphragm values for their products.

RE: Plywood/light-gauge steel roof diaphragm

(OP)
Thanks for the tip!  Buildex has some data on their website, just like you said.

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