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Re: wind on shade fabric

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Per ASCE a minimum 10 PSF shall be used, although for similar
type of fabrics experiments in a wind tunnel environment show that
it could be reduced to 3-5 PSF.

Hope this helps,

Desi J. Kiss, P.E.





On Fri, 16 Feb 2001 15:26:16 -0800 Ed.Haninger(--nospam--at)Fluor.com writes:
> 
> I am looking for wind design info for a structure I am working on.  
> I have
> a shade structure over 100 ft square in plan in a gable roof type 
> shape.  I
> am looking for any information you may have on whether the wind load 
> is
> reduced on shade type fabric.  The type being considered is 75% 
> solid with
> holes spaced maybe 1/4 on center each way.   Are there any studies, 
> tests
> or code provisions which address this situation.  The client says 
> that this
> fabric moves around a lot less than solid fabric.  I can see that, 
> but I
> would like some kind of engineering data to back that up.  I have 
> checked
> out the reference  list in ASCE 7-98 and some looked related but 
> were
> unavailable.  Any ideas would be appreciated.
> 
> Thanks,
> Ed Haninger, SE
> 
> 
> 
>
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