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RE: Design Requirements for Bldgs > 100 ft.

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At 10 stories and higher wind velocities, you are starting to get into the range of buildings where a wind tunnel test on a model might be advised. The ASCE 7 will give conservative results especially for cladding. You can generally save the cost of the wind tunnel test on the savings you will get in cladding design. You will not generally realize that much savings on the primary lateral force resisting system, but the cladding is a different issue.

Talk to the people at CPP in Colorado. They can advise you on whether or not you should get a wind tunnel test on the building.

Harold Sprague

From: "refugio rochin" <fugeeo(--nospam--at)>
Reply-To: <seaint(--nospam--at)>
To: seaint(--nospam--at)
Subject: Design Requirements for Bldgs > 100 ft.
Date: Mon, 18 Dec 2006 09:38:14 -0400

I am investigating now, but I thought I would question in case some one has
some additional information.
I have not designed a 10-story building before. The tallest building I have
looked at is a 7-story building that just fell under the 60 ft and below
criteria/limit for design.

What are the changes in design requirements when going more than mid-rise?


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