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Re: 2006 IBC WIND ANALYSIS Question

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Looking at ASCE 7-05, the section you reference is for Components and
Cladding, which will yield forces much higher than those from a
standard MWFRS, which is described in 6.5.12.2.4.  Also, the corner
zones are affected worse, hence the higher factors.  Zones A and B are
as described.  You need to account for the highest reactions (at the
roof level) due to the various positive and negative pressures
applied.  Good luck.

On Nov 17, 2007 2:33 PM, Ed Najjarine, SE <en(--nospam--at)najjarinestructures.com> wrote:
> Jason,
>
> Case A involves the roof loading applied to the
> parapet, which in a corner condition will result to
> very high wind pressure. Any comments?
>
> --- Jason Christensen <jason(--nospam--at)wcaeng.com> wrote:
>
> > If memory serves,
> > For parapets:   Case A = Pressure towards building
> >                 Case B = Pressure away from building
> > (suction)
> > Not positive but the ASCE 7 Method 2 for sun shades
> > or canopies, using
> > the "partially enclosed" building requirements.
> >
> > Jason
> >
> >
> > -----Original Message-----
> > From: Ed Najjarine, SE
> > [mailto:en(--nospam--at)najjarinestructures.com]
> > Sent: Friday, November 16, 2007 1:26 PM
> > To: seaint(--nospam--at)seaint.org
> > Subject: 2006 IBC WIND ANALYSIS Question
> >
> > Ladies & Gents,
> >
> > Can someone please clarify (simplify) the wind
> > loading
> > on parapets in section 6.5.12.4.4 related to load
> > case
> > A & B. My results seem very high. Also which section
> > best addresses the wind loading on canopies (or sun
> > shades).
> >
> > Thanks in advance.
> >
> > Ed Najjarine, SE
> > Irvine, CA
> >
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> Ed Najjarine, SE
>
>
>   18818 Teller Ave. Ste. 120, Irvine, CA 92612
>   (949) 387-9440 T
>   (714) 412-4887 C
>   (949) 387-9207 F
>   www.najjarinestructures.com
>
>
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-- 
David Topete, SE

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