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Wind coefficients for cone shaped roof

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chazzeek

chazzeek

Structural
Aug 16, 2010
2
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.
 
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Go to ASCE 7. Most load requirements in the 2009 IBC are referenced from ASCE 7.
 
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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.
 
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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.
 
 http://files.engineering.com/getfile.aspx?folder=6bdf6362-18dc-45f4-b64f-821f9cb4dea7&file=NewZealand_Wind_MoreCoefficients_design_actions_-_Part_2-_Wind_actions.pdf
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