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Fwd: Re: Floor Vibration

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On Sun, 16 Mar 1997, R K Hagens, P.E. wrote:

> Does anyone know of a technical guide or resource for designing or
> retrofitting buildings with floor vibration control problems?  I have a
> client that wants to install a VERY sensitive device that requires
> vibration amplitudes be limited to 1 micron or less at a frequencies of 5
> Hz or greater.

We get requirements like that fairly regularly here at Lawrence Berkeley 
National Lab. The solution seems to be in isolating the EQUIPMENT. Even 
when we build a brand new building to house such equipment (typically 
electron microscopes) we design isolation for the equipment. I don't 
recall EVER retrofitting the building itself. Vibration isolation systems 
are usually just the opposite of good seismic design, so it can be a 

.    .    .   .   .  .  .  .  . . . . . ...........................
Bob Shilling, SE             Berkeley, CA          shilling(--nospam--at)

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From: Bob Shilling <shilling(--nospam--at)>
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Subject: Re: Floor Vibration
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Richard Lewis, P.E.
Missionary TECH Team

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