Cp values for open structures with arched roof

[koshimli059]

Hello to all,

I'd like to know what cp values (from what figure or table) should I use for an open structure that has an arched roof.
Figure 27.4-3 seems to give me the information I need, except it says it's for enclosed or partially enclosed structures.

Thanks in advance.

 

[ReverenceEng]

I use the external values as applicable for enclosed and partially enclosed (and make note of it with an explanation so it doesn't get rejected by a zealous plan checker) - I run into the same issue when doing canopies and awnings with curved frames quite frequently. I feel comfortable with it and it's never been rejected...maybe someone will prove me wrong! Let's see what the rest of the community says...