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XR250, I am pretty confident they were hot rolled. Sharp corners. JAE, many thanks for the reference. I will review. dhengr, thanks for your thoughts. I arrived, more or less, at the same conclusion. Vulcraft is owned by Nucor and most definitely probably roll their own shapes. Was curious if...

Hello all, I stumbled across a few non-typical steel angles in some open web steel joists and joist girders (supplied by Vulcraft) yesterday. The web members in particular induced some head scratching. Some of the shapes I measured with my calipers were coming in around .110" in leg thickness...

You question is a little unclear but yes, this is possible. You can run the steel design function and SAP will understand that your 5 frames are actually one single frame. That is, it'll calculate all necessary factors considering the actual length between lateral bracing points (not just...

Hamamyolu, I was having a similar problem today. Apparently, in SAP, you can only apply forced displacement loads to restrained nodes. I was attempting to apply a displacement to a node at the midpoint of a beam and couldnt figure out what the problem was...

In addition to what @gyration said, I have also done this by using an older version of the OAPI to find what nodes are at each end of the frame member, and then programmatically calculating the distance between those points. https://www.linkedin.com/in/williamsgodfrey

Thanks for the reply. You are correct! The lower bound limit on Cm doesn't exist in 318-08, it is last seen in 318-05. That is my mistake. This may explain why I couldn't find documentation of it being removed for the 2011 version of the code. Regardless, any insight someone might have would...

I am going over the Moment Magnification Procedure for non-sway columns as described in ACI318-11 Section 10.01.6 and I noticed a difference in the code relative to ACI318-08 that I cannot find discussion or documentation of anywhere on the internet. Equation 10-16 in ACI318-08 limits the value...