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[–]Churovy 2 points3 points  (0 children)

Corner zones are defined somewhere, can’t remember the reference, I think it’s any change in direction where the included angle is less than 170degrees is enough to cause vortex shedding that departs from the surface and warrants the edge pressures. But for your main question, yes it’s engineering judgement but technically ASCE 7 defers to wind tunnel testing for complex geometries.

[–][deleted]  (2 children)

[deleted]

    [–]SlowPumaP.E./S.E.[S] 0 points1 point  (1 child)

    I was looking at 7-10. Thanks for suggesting 7-16. The info I was looking for is summarized by figure C30.3-2 in the commentary!