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RE: drywall type shearwalls- l

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I don't remember if I sent this reply or not. If the problem is gaining
shear capacity in the CFS wall and plywood is not allowed, then the designer
can calc the lateral load of the wall using tension braces or a proprietary
steel braced frame systems such as the Hardy Frame and Panels from
Simplified Structural Systems (search using http://www.google.com for "Hardy
Frame"). This would resolve all of the problems indicated an at a reasonable
cost considering the strength of the frames, low deflection and all steel
construction.

Dennis S. Wish, PE


-----Original Message-----
From: edjonson [mailto:edjonson(--nospam--at)email.msn.com]
Sent: Friday, March 09, 2001 5:32 AM
To: seaint(--nospam--at)seaint.org
Subject: Re: drywall type shearwalls- l


The wood studs are combustible also.  Place your sheet rock over the
plywood.
Ed Jonson
----- Original Message -----
From: "dcarroll" <dcarroll(--nospam--at)bfmengr.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Thursday, March 08, 2001 9:20 AM
Subject: RE: drywall type shearwalls- l


> THANK YOU for your reply
>
> The main problem with plywood is that it's combustible and Arch and
> Inspector say  'No Way"
>
> Any other thoughts?________       (Incidentally WIND controls, so we think
> gypsum is okay?)
>
>
> -----Original Message-----
> From: sscholl2(--nospam--at)juno.com [mailto:sscholl2(--nospam--at)juno.com]
> Sent: Wednesday, March 07, 2001 9:32 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Re: drywall type shearwalls- l
>
>
> why do you HAVE to use drywall as the shear resisting system. I cannot
> envision any situation where you would have to do this. It is not
> avisable.
> My advice is use plywood on the metal studs and then place gyp. board
> over it.
>
> Stan Scholl, P. E. FASCE
> Laguna Beach, CA
>
> On Wed, 7 Mar 2001 10:42:45 -0500 "dcarroll" <dcarroll(--nospam--at)bfmengr.com>
> writes:
> > In the past, we have always used plywood or metal strap brcg for
> > shearwalls--
> >
> > But now we have a project where we HAVE to use drywall on metal
> > studs as The
> > Shear Resisting system .
> >
> > So my questions  run like this:
> >
> > 1.  How many Structurals out there feel comfortable using drywall
> > for
> > lateral (shear) resistance ?   {esp for seismic forces?___}
> >
> > 2.  ICBO lists tables where 100 plf seems to be a typical value :
> > a) Is
> > this conservative or "liberal"?__________
> > b)  Doesn't aspect ratio influence this number?_________?
> > c) What
> > is the best design aid/reference for this system?
> >
> > 3.  Is metal stud stronger or no different from wood stud?
> >
> > 4.  Table seems to be based around wood studs using "cooler" nails--
> > what's
> > this ??
> >      I have metal studs-- I assume  ordinary drywall screws are OK?
> >
> > 5.  Are there some (major) unwritten Do's and Don'ts with this
> > system?
> >      (I will put this into a spec--   Does anybody have spec or
> > design expl
> > they can fax me ?/
> >           my fax is 859_278-6060 attn David )
> >
> >
> > Thanks in advance for ANY input--
> >  P.S.  I need it ASAP
> >
> >
> >
> >
>
>
>