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LG Truss bracing steel beams

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Seaint,
 
Is it practical and efficient to use the lower chord of a light gage truss to brace the top flange of a steel supporting member?
 
To specify this, wouldn't it then be necessary to put the brace force required on the structural drawings for the light gage truss manufacturer to incorporate?  Thinking out loud, the required stiffness of the lower chord would also need to be specified.  If this goes beyond the realm of conventional truss design software, then it might be necessary to provide member selection guidelines to meet these stiffness and force requirements.
 
TIA for the thoughts,
 
Jim Wilson, PE
wilsonengineers(--nospam--at)yahoo.com
Stroudsburg, PA


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