http://www.constructioncalc.com/blog/userforum/tags/unbraced-length Where Builders, Architects, Engineers, and Code Officials Meet en-US Sun, 05 Feb 2012 10:05:10 +0000 http://bbpress.org/?v=1.0.2 q http://www.constructioncalc.com/blog/userforum/search.php http://www.constructioncalc.com/blog/userforum/topic/allowable-fb-reduction-based-on-unbraced-length#post-32 Mon, 08 Mar 2010 10:23:56 +0000 Salty 32@http://www.constructioncalc.com/blog/userforum/ <p>I don't see maximum allowable Lu (obviously I can get this from AISC manual). Is there any way to calculate Fb using a Lu greater than max allowable Lu to obtain full Fb? </p>