I am looking at a small building that will be used as a press box. The building is 8'x33' and sits on top of a high school football stadium. The top of the stadium is about 20' high. On top of the press box is a fabric canopy to shelter press people while they stand on top of the building. It is basically made of aluminum trusses with fabric of top. The canopy engineer supplied reactions on the supports. The reactions don't look to be very accurate. 8 supports.. 4 along the front and 4 along the back. He has the same moment on all the supports 1000 ft#. There is also a set of stairs that go form the ground up to the press box. It has a fabric caopy as well. The trib area for the supports for this canopy are not the same as the roof canopy but the moment is still 1000 ft#.
If I look at it using ASCE7-05 should I treat it as an open Building? Is therre any special considerations for this type of canopy vs a more traditional Canopy over a gas station?
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