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steel - vibration analysis

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Checking vibration on steel framing for a mezzanine, I got 2 similar answers by following example 4.4 of AISC Design Guide 11 (Designing for Floor Vibrations) and the Floor Framing software from the www.AISC.org/steeltools downloadable software.  While those answers were similar, the analysis provided by FloorVibe via Ram Structural System indicated members being increased about 60% (conservatively).  Has anyone else encountered such a discrepancy?

 

David A. Topete, SE

Structural Engineer

 

GFDS Engineers

543 Howard St., First Floor

San Francisco, CA 94105

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dtopete(--nospam--at)gfdseng.com

www.gfdseng.com