Gust Factor for Flexible Structures

[skiluke]

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?

 

[WillisV]

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:

http://www.structuremag.org/Archives/2008-6/C-CS-BuildingPeriods-Jacobs-June08.pdf