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Wood beam, long main span very short end span

AaronMcD

Structural
Aug 20, 2010
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Have a 16 ft heavily loaded PSL beam, simple span. Say I want to extend the beam a foot or two to simplify construction, and infill that foot or two. Will the moment cause by that cause excessive uplift or buckling of the trimmer studs? Or should deformation be low enough that it can be neglected?
 
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It likely won't be practical to restrain the tip of the cantilever vertically. So you're down to calculating the deflection of the cantilever and trying to judge whether or not that amount of movement will damage the neighboring stuff. Enough stiffness in the beam will eventually make this ok.
 
I had a lumber supplier design an LVL for a customer with a similar scenario but they restrained the tip in the model. The customer wanted to hire me to help him figure out how to deal with the 20k uplift!
 
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