Fire Rating of Concrete-Filled HSS Column Sections 1

[wvatecheng1]

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.

 

[RHTPE]

Have you tried searching ACI publications?


Ralph
Structures Consulting
Northeast USA

 

[JLNJ]

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?

 

[NikhilRaut]

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.