Thanks, KootK. My sketch isn't exact, of course. I show bracing on the compression flange - isn't that all you need? It wouldn't be hard to brace the entire height, but I don't see any advantage.
I have a long, simply supported beam with a single load at the center (like a fixed gantry hoist). It seems like if I provide full lateral support at the ends and the load point, that I wouldn't have to make any concessions for lateral torsional buckling. Is there any justification for this in...