gust factor for flexible structures
 

gust factor for flexible structures
i was wondering if any one out there knows if a gf of 1.0 is reasonable for a flexible structure? i calculated this using asce 7-05 provisions. i also used the approximate fundamental period calculated using asce 7-05 to calculate the natural frequency of the structure which is used in the calculations for gf. is this okay?

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a gf value of 1.0 is not unreasonable.
see this article in structure mag. for a discussion of approximate periods to use for wind design: