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Re: Bar Joists parallel to masonry walls

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Yes. I like the open ended CMU's and since US Army Corps of Engineers generally requires "A" blocks, they are easily obtained. I generally use a WT 3 x 9 x 0'-7 5/8". The length is the same as the height of the CMU. The DBA's or headed studs are welded to the web of the WT with flare welds and positioned so that they clear the face shell of the CMU. The WT web acts as a shear lug for shears in the plane of the wall. The WT's are spaced at whatever the angle will span, but at some increment of 16". The studs or DBA's take care of the out of plane forces. The continuous angle provides gravity support and serves as a diaphram chord. The masons and iron workers find this solution very easy. I find it to be a very robust connection.

Harold Sprague

From: Jnapd(--nospam--at)
Reply-To: <seaint(--nospam--at)>
To: seaint(--nospam--at)
Subject: Re: Bar Joists parallel to masonry walls
Date: Tue, 17 Aug 2004 13:22:39 EDT

Thanks Harold I was going to ask about studs, one or two one each side of the
And I assume that you spec out open ended block. Do you pick the WT using web
equal to head joint and 1/4" min. flange ?  Wed depth 1/2" clear of outside
face shell ?

Joe Venuti
Johnson & Nielsen Associates
Palm Springs,  CA

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