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Fwd: Re: floor deflections

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>The premise is that long span wood
>joist system peform best when the fundamantal frequency of vibration is
>held below 15 Hz.
This sort of thing is smart engineering because it ties in dead load and 
stiffness, but I wonder if the criterion should be 'above 15 Hz' The 
lower the frequency the softer the system

Christopher Wright P.E.    |"They couldn't hit an elephant from
chrisw(--nospam--at)skypoint.com        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)
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Subject: Re: floor deflections
Date: Thu, 27 Feb 97 09:35:01 -0600
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__________________________________________________

Richard Lewis, P.E.
Missionary TECH Team
rlewis(--nospam--at)techteam.org

The service mission like-minded Christian organizations
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