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RE: Deflection limits for CMU wall

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Thanks David.  I did see that but kind of went past since it is in the
strength design section.  Also, it seems a little excessive to me, but then
it does state under service loads, so I guess it would be O.K.
Thanks Again,
Joe

Joseph R. Grill, P.E. (Structural)
Shephard - Wesnitzer, Inc.
Civil Engineering and Surveying
1146 W. Hwy 89A Suite B
Sedona, AZ  86340
PHONE (928) 282-1061
FAX (928) 282-2058
jgrill(--nospam--at)swiaz.com
 


-----Original Message-----
From: David Topete [mailto:davetopete(--nospam--at)yahoo.com] 
Sent: Tuesday, November 30, 2004 9:51 AM
To: seaint(--nospam--at)seaint.org
Subject: Re: Deflection limits for CMU wall

Joe,
Refer to IBC Sect 2108.9.4.6  Deflection Design, EQN
21-39.  DELTA_s = 0.007h

Hope that helps.
David Topete, PE
SF, CA
--- Joe Grill <jgrill(--nospam--at)swiaz.com> wrote:

> I have been looking for some criteria for a lateral
> deflection limit for a
> reinforced grouted CMU wall.  I have found limits
> for vertical requirements
> (recently discussed).  The only lateral criteria I
> have found is in the IBC
> (at the moment looking at 2000 IBC) of L/240 for an
> exterior wall with
> brittle finishes (Table 1604.3) with a footnote f
> which says that .7 times
> the component and cladding wind loads may be used
> for calculating the
> deflection for the limits in the table.  Would this
> limit be acceptable to
> some of you out there?  Generally this wouldn't be a
> question for me, but I
> am looking at an existing wall that will have a new
> window cut into it.  The
> jambs will need to be reinforced (looking like a
> steel member for now) and
> the lower limits will make things a little easier
> for me.
> 
> Thanks,
> 
> J. Grill
> 
>  
> 
> Joseph R. Grill, P.E. (Structural)
> 
> Shephard - Wesnitzer, Inc.
> 
> Civil Engineering and Surveying
> 
> 1146 W. Hwy 89A Suite B
> 
> Sedona, AZ  86340
> 
> PHONE (928) 282-1061
> 
> FAX (928) 282-2058
> 
> jgrill(--nospam--at)swiaz.com
> 
>  
> 
>  <http://inet/index.htm> 
> 
>  
> 
> 



		
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