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Re: Drift Limits for Wind

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Another issue of concern is the possibility of the glass breakage.
According to section IBC 2403.3, "To be considered firmly supported, the
framing members for each individual pane of glass shall be designed so that
the deflection of the edge of the glass perpendicular to the glass panel
shall not exceed 1/175 of the glass edge length or 3/4 inch..."

I believe this number was obtained by testing by the glass manufacturers.

- Aswin
------------------------------------
Aswin Rangswamy, P.E.
Los Angeles, California
------------------------------------
----- Original Message ----- 
From: "Scott Maxwell" <smaxwell(--nospam--at)engin.umich.edu>
To: <seaint(--nospam--at)seaint.org>
Sent: Thursday, September 22, 2005 1:54 PM
Subject: RE: Drift Limits for Wind


> Yes, thanks Violetta for setting me straight.  Darn code buggers...always
> slipping something new in.  <grin>  Keeps an engineer on one's toes!
>
> Scott
> Adrian, MI
>
>
> On Thu, 22 Sep 2005, Gerard Madden, SE wrote:
>
> > Thanks to all and especially Violeta for giving a code reference (even
> > though IBC isn't the law of the land out here yet).
> >
> > -gm
> >
> > -----Original Message-----
> > From: Violeta Tihova [mailto:vtihova(--nospam--at)earthlink.net]
> > Sent: Thursday, September 22, 2005 11:45 AM
> > To: seaint(--nospam--at)seaint.org
> > Subject: Re: Drift Limits for Wind
> >
> > IBC Table 1604.3 limits the deflection of exterior walls with brittle
> > finishes to l/240 for wind and seismic loads. Note that for cantilever
> > columns, l shall be twice the column length.
> >
> > Violeta Tihova, P.E.
> > Silver State Code Consulting
> > 1785 E. Sahara Ave. Ste. 157
> > Las Vegas, NV 89104
> > Ph: (702) 866-2633
> > F: (702) 893-2463
> >

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