Lateral Torsional Bracing

Question

I am using RAM Elements and add lateral torsional bracing and positive flange bracing causes the stress ratio due to torsion to skyrocket (from 0.93 to 427000). Shouldn't the bracing restrict the torsional forces? Have I modeled something incorrectly?

Seth Guthrie · Accepted Answer

The original torsion forces were small, less than 1 k-ft, so the simple solution might be to turn off the DG9 code check options. I tested segmenting the chords (just 1548 and 1551) and that also worked.

Seth Guthrie · Answer

You checked CLT Restraint and entered a short Lb_pos? 
 
 If so I would probably need to see the model. It might be something particular to the shape, the design code, or your version. 
 
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Lateral Torsional Bracing

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