The Steel Beam module does not permit biaxial loading at the present time, so there are two potential approaches to this loading scheme:

One option is to do two separate Steel Beam runs.  One run would apply the gravity loads to the beam with the beam oriented “web vertical”.  The other run would apply the wind loads to the beam with the beam oriented “web horizontal”.  This would require that the user manually combine the results of the two runs using engineering judgment to come up with a final result.