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Re: CMU wall reinforcing

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Are you using running bond? If that's the case, yes. If you use stack bond, it's min 24". Running bonds are not as reliable.
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-----Original Message-----
From: Drew Morris <dmorris(--nospam--at)bbfm.com>
Date: Tue, 26 Apr 2011 13:25:27 
To: SEAINT<seaint(--nospam--at)seaint.org>
Reply-To: <seaint(--nospam--at)seaint.org>
Subject: CMU wall reinforcing

I have a pair of short special reinforced CMU walls that are being 
designed under SDC D.  Based on the masonry code (TMS 402-08), the 
vertical and horizontal spacing has to be less than the wall length/3 
(1.17.3.2.6).  For a wall 2'-8" long, I come up with a spacing of 10.7" 
oc, i.e. every cell.  Am I interpreting this correctly.  There is 
minimal shear and for out of plane loading, the verts can be at 24" oc.


-- 
*Drew Morris, PE*| /Project Engineer/
BBFM Engineers, Inc. <http://www.bbfm.com/>
510 L Street, Suite 200 | Anchorage, Alaska 99501
Ph: (907)274-2236 | Fax: (907)274-2520 | Web: www.bbfm.com 
<http://www.bbfm.com/>

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