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Back-to-back angles are normally fillet welded to a spacer which is cut to
     extend beyond the angle leg by a small amount.  For example, if
     connected angle leg is 4 inch, the spacer would be cut to 5 inches wide
     to give you a 1/2 inch space on each side.  This gives you enough room
     to make a fillet weld.  On ASD section, that refers to something like a
     laced column which may have a shear force which must be taken by the
     lacing.  On most double angle braces there are no out of plane forces
     so the weld would just be a minimum length.

     Ed Haninger
     ===========================



Date: Fri, Apr 18, 1997 2:33 PM
Subject: connection between double angles
To: "seaoc(--nospam--at)seaoc.org"; Haninger, Ed


     Does anybody know what type of weld would be used to connect
     back-to-back double angles to be used as a compression member?  It
     doesn't seem like a fillet weld would be applicable because there is
     no corner.  Also, section E4 (Built-Up Members) of the ASD Manual
     states that intermittent welds in built-up members shall be adequate
     to provide for the transfer of calculated stress.  Does this mean that
     the sum of the intermittent weld strengths must be able to resist the
     design axial load applied along the longitudinal axis of the member?

     Thanks in advance for your response,

     John Hubert, P.E.



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Richard Lewis, P.E.
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