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RE: Floor Vibration

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Title: RE: Floor Vibration

Minimizing perceptible floor vibrations is not all that hard to do, but it is more involved than just shooting for a cetain frequency. There is a brief blurb at the following link with a few references that will help you, including an article by Tom Murray in AISC's Modern Steel Construction and a link to the AISC design guide on floor vibrations (Tom is a co-author on that too).


-----Original Message-----
From: Acie Chance [mailto:achance(--nospam--at)]
Sent: Wednesday, March 01, 2000 10:15 AM
To: 'seaint(--nospam--at)'
Subject: Floor Vibration

     I know I have it somewhere but I can not find it now. I have read a
paper where the natural frequency of a floor system was compared to the
level of comfort humans feel. I am looking at a floor system using W8
members to span 23 ft. The floor beams are on 5 ft. centers. The deflection
criteria of table 16A-D is meet however the system has a natural frequency
of 8 hertz. This  seams low to me. If my memory is not to bad about 15
hertz is where humans feel comfortable  walking on floors.

     Thanks for any help.

Acie Chance