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Fire Rating of Concrete-Filled HSS Column Sections

Fire Rating of Concrete-Filled HSS Column Sections

Fire Rating of Concrete-Filled HSS Column Sections

(OP)
I am designing exposed exterior HSS18.000x0.500 columns to support a roof above an interior atrium space.  Since the columns are visually exposed and also exposed to the elements, I am reluctant to recommend intumescent piant for fire protection as it will experience UV degradation over time.  I have recommended filling the columns with concrete as an alternate to intumescent piant; then simply painting the columns a weather resistant grade of paint.

Can some one direct me to where/how I can qualify the fire rating of the resultant composite column sections?

Thanks, in advance.  

RE: Fire Rating of Concrete-Filled HSS Column Sections


Have you tried searching ACI publications?
 

Ralph
Structures Consulting
Northeast USA

RE: Fire Rating of Concrete-Filled HSS Column Sections

Maybe you can find something in UL which suits your case.

How about dropping a cage of rebar in there and making it a concrete column with steel cladding?   

RE: Fire Rating of Concrete-Filled HSS Column Sections

I have posted you answer to the FAQ section named "How to calculate Fire Rating of Concrete-Filled HSS Column Sections".
It shall be up by tomorrow I guess.

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