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- To: <seaint(--nospam--at)seaint.org>
- Subject: wind on stair tower
- From: "Joseph R. Grill" <jrgrill(--nospam--at)cableone.net>
- Date: Thu, 7 Aug 2008 07:17:28 -0700
I have been asked to look at a free standing stair tower situated next to a parking garage. The tower will be enclosed by the parking structure on two sides and is about 30ft tall. It will be enclosed by a screening material (“Green Screen” I believe it is called). I may be able to take some of the wind loads into the parking structure, but I think at this time, the remainder will be resisted by 2 vertical HSS sections. I have some questions regarding the calculations for the wind loading. What do you think, would this be a building or non-building structure. If building, would it be enclosed, open, or partially enclosed? If non building, would it be a tower, trussed tower or whatever ? I’m sorry, it seems that I am asking about the entire setup for the calculations, and I guess I am in a way. It doesn’t seem as though it really fits any of the definitions in ASCE 7-05. Maybe some of you can explain a little. Any one done something like this in the past?
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