Net Wind Pressure

[FabStar]

I am designing a Gas Canopy. The metal fascia system around the top is considered a parapet and the structure is open. What design criteria is followed here and what occupancy category should be used, II or III?

 

[Ron]

Assuming you are in the US and referring to ASCE 7, for this application I would (and have) use an "open structure", Cat II.

 

[FabStar]

Thanks Ron. I am not an engineer but I have been working with one for some time. I need to understand how wind pressure is applied to the fascia. Currently, we use this formula - Pp = qpGCpn. ASCE 7-05. or is there another Formula I should be using. This is the lateral point load, Correct?

 

[FabStar]

Thanks Ron. I am not an engineer but I have been working with one for some time. I need to understand how wind pressure is applied to the fascia. Currently, we use this formula - Pp = qpGCpn. ASCE 7-05. ie... 85mph = 9.7 x 1.5 + 10.8 x 1 = 25.3psf on the fascia. So, the lateral point load = W x h x 25.3/#columns?