Heavy Timber Decking
Heavy Timber Decking
(OP)
I'm looking for allowable unit shear values (for diaphragms)for 3" and 4" tongue & groove decking supported on beams spaced at 6' o.c. There is no plywood topping. Any references would be helpful. Thanks






RE: Heavy Timber Decking
In the past Oregon State did some testing of using adhesive applied to the tongue and groove of decking to develop diaphragm action. The research was done for Potlatch Corp. for use with Lock-Deck.
Potlatch has since sold their deck line to Disdero Lumber. For more information on glued diaphragms you could contact Disdero, Filler King or any other supplier of laminated deck.
One of the problems you will face in specifing this type of system is that all the past research was based on the use of 3M 5230 adhesive. 5230 is no longer available.
Based on my experience because of the cost of adhesive and the labor cost to apply it, overlaying the deck with plywood or OSB is more econmic.
RE: Heavy Timber Decking
RE: Heavy Timber Decking
RE: Heavy Timber Decking
RE: Heavy Timber Decking
www.awc.org/pdf/2001WindSeismicSupp.pdf
RE: Heavy Timber Decking
A lot of my knowledge on this topic is due to the fact I worked for the Western Wood Products Association for seven years. I added to that knowledge by keeping in touch with their technical department since 1994. If you have further questions on this topic it would be well worth your time to call WWPA.
RE: Heavy Timber Decking
<http://www.awc.org/pdf/wcd2.pdf>