Limitations on a Cantilevered Metal Deck Diaphragm
Limitations on a Cantilevered Metal Deck Diaphragm
(OP)
Where can I find what the limitations should be on a cantilevered metal deck diaphragm? Also, what about the special case of a three-sided structure with an open wall (i.e garage) ?
I've seen limitations on these situations for wood diaphragms in the wood SDPWS, but I haven't come across anything that addresses metal deck diaphragms. I looked in the deck diaphragm design manual, but didn't see anything on limitations.
I've seen limitations on these situations for wood diaphragms in the wood SDPWS, but I haven't come across anything that addresses metal deck diaphragms. I looked in the deck diaphragm design manual, but didn't see anything on limitations.






RE: Limitations on a Cantilevered Metal Deck Diaphragm
http
RE: Limitations on a Cantilevered Metal Deck Diaphragm
You could reverse engineer it. Find out max moment for single span, then calculate overhang to match that moment. Probably knock off 20-25% so you can sleep at night.
RE: Limitations on a Cantilevered Metal Deck Diaphragm
RE: Limitations on a Cantilevered Metal Deck Diaphragm
RE: Limitations on a Cantilevered Metal Deck Diaphragm
Where would you get your deflection criteria?
RE: Limitations on a Cantilevered Metal Deck Diaphragm
What is the drift criteria for a high rise with wind only?
RE: Limitations on a Cantilevered Metal Deck Diaphragm
I mean you can design for shear plus the force from the T/C couple due to moment but I'm not sure how to check against deflection/stiffness.
A solid example for this situation would be great.
Let us know if you find anything.
EIT
RE: Limitations on a Cantilevered Metal Deck Diaphragm
ron9876,
there are deflection limits for earthquake events. It is something like height/100 for the real actions (not including force reduction because of ductility).
RE: Limitations on a Cantilevered Metal Deck Diaphragm
MCA (Metal Construction Association) "A Primer on Diaphragm Design"
EIT