Hi, I'm sorry for my poor information, this a brace between inside flange and outside profiles to prevent the beam-column from moving laterally and buckling (by AISC).
Access a broad range of knowledge to help get the most out of your products and services.
Start with some of our most frequented solutions to get help installing your software.
The AutoCAD Structural Detailing forum has moved into it's very own category page, and can no longer be found within the Additional Product Forums.
Upgrading to a 2015 product? Make sure to check these out 1st!