@JoshPlum Thank you for the response.
I have a wind load acting at the bottom of the flange causing torsion. I did my torsional analysis considering both the beam ends to be torsionally fixed. (I assume that's how my beam is going to behave because we did provide a detail at those collector...
I am doing torsional analysis on my collector beams that are framing into a column. Since its a collector beam, the flanges are not welded to the columns and hence warping is not restrained. Is there a way to restrain warping of these flanges?