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RE: wood floor system for a Pool table

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Tim,
 
Typically to control vibrations in a wood floor, designing the floor joists for live load deflection of less than L/360 will reduce most vibrations in a typical wood framed house. Also check the floor sheathing or plywood span index for the joist spacing. You could also compare a live load including the weight of the table and maybe 8 to 12 people as live load. The CBC code indicates a live load for residential floors of 40 psf. That may govern over the expected weight of a dozen people and the table. Try comparing the uniform live load to the expected maximum live load placed near the center as if they're all standing next to the table. This should be conservative since the table is really a static load and won't contribute to vibrations. The weight of the table may actually act as a damper to the vibrations caused by foot fall. These are just a few thoughts on the problem.
 

Dave Gaines, P.E.

Structural Project Engineer
HDR ONE COMPANY | Many Solutions
251 S. Lake Ave, Suite 1000
Pasadena, CA 91101
T: 626.584.4960
F: 626.584.1750
email: david.gaines(--nospam--at)hdrinc.com

 


From: Pinyon Engineering [mailto:Pinyonengineering(--nospam--at)hughes.net]
Sent: Thursday, January 03, 2008 11:21 AM
To: seaint(--nospam--at)seaint.org
Subject: wood floor system for a Pool table

Hi,
I am working on engineering for a custom home where the billard table (pool table in bar speak) is on the second floor.
What floor deflection should be allowed to make sure the game can't be influenced by a bouncing floor???
any experience or reference to look at ? 
 
Thanks,
Tim Rudolph
Pinyon Engineering
Bishop,CA