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RE: Thin composite deck

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Reference AISC Design Guide 11 "Floor Vibrations due to Human Activity". The system you have described is similar to those I have observed that were used in Germany. The only caution that I would exercise is the levelness of the floor might be problematic but it is something that can be solved. You may have to adjust the shores to accomodate some camber so that the floor is relatively level when the shores are removed.

Harold Sprague

From: "Jake Watson" <jake.watson1(--nospam--at)>
Reply-To: <seaint(--nospam--at)>
To: SEAINT <seaint(--nospam--at)>
Subject: Thin composite deck
Date: Tue, 13 Feb 2007 19:28:57 -0700

We have a steel erector proposing a shored W3 composite deck with 3-1/4"
light weight concrete on top (6-1/4" total) spanning 15'.  It works for
deflection and loads however we are nervous about vibrations in the deck
(hotel occupancy). Verco recommends span to depth ratios stay in the low to
mid twenties.  This would be nearly 29.  Does anyone have experience with
this system?

Jake Watson, S.E.
Salt Lake City, UT

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