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Wind coefficients for cone shaped roof

Wind coefficients for cone shaped roof

Wind coefficients for cone shaped roof

I am working with a company that designs steel grain bins.  I am helping better work IBC into their design.  Because IBC can be vague when dealing with non building structures, we are having a hard time determining wind loads for a cone shaped roof.  the roof is about a 30 degree slope, if anyone could point me to a good resource that would be appreciated.  thank you.

RE: Wind coefficients for cone shaped roof

Go to ASCE 7. Most load requirements in the 2009 IBC are referenced from ASCE 7.

RE: Wind coefficients for cone shaped roof

That is where i have been looking, unfortunately the ASCE7 does not cover cone shaped roofs. That is why i was asking if anyone knew of any other resource. I might have to try and come up with something by combining round structures, and gable roofs.

RE: Wind coefficients for cone shaped roof

See Appendix C5 of the attached document which provides coefficients and methodologies for bins and silos.  Note that this is the New Zealand code - so may not be directly portable to ASCE-7 based design - but should provide a rational basis to help you.   

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