I am analyzing a roof structure (y coordinates are all 0) for the reactions at the TOP of the columns. I am not considering the columns in the analysis, as I only care about the roof structure itself. When I am adding a floor load (the entire dead load of the roof construction) of -18 PSF, the floor loading diagram is ONLY covering a corner of the structure, while it should cover the entire area as specified (60.5 ft x 33.833 ft). Can someone please advise as to why this is happening? I do not want to add a plate or surface. I applied a floor load in the past on a structure in this way and it worked just fine. Please advise.
communities.bentley.com/.../Proposed_5F00_Snow-and-Equipment.std