Fire rating for Concrete Filled HSS Columns???
Fire rating for Concrete Filled HSS Columns???
(OP)
Hi
I am looking for some published fire ratings for concrete filled HSS columns. My architect is pushing me for a UL assembly number, but since it is not a proprietary system, there is not one. He is giving me grief as he thinks he needs a UL number. Does anyone know of any official body (code, institute, etc) which has published fire ratings for composite HSS columns. I need a 1 hour rating on an unprotected 8" HSS column.
Thanks in advance.
Andrew
I am looking for some published fire ratings for concrete filled HSS columns. My architect is pushing me for a UL assembly number, but since it is not a proprietary system, there is not one. He is giving me grief as he thinks he needs a UL number. Does anyone know of any official body (code, institute, etc) which has published fire ratings for composite HSS columns. I need a 1 hour rating on an unprotected 8" HSS column.
Thanks in advance.
Andrew






RE: Fire rating for Concrete Filled HSS Columns???
I believe you have 4 options:
Use Lally column
Refer to http://www.deanlally.com/
Box the column in with a rated drywall assembly.
Spray on fire proofing on the column and then box the column in with a unrated drywall assembly to achieve achitectural appearance.
Use intumescent paint on the column.
I hope this helps!
RE: Fire rating for Concrete Filled HSS Columns???
Think of metal deck. If you put enough concrete over it, you can easily get a fire rating even if unprotected.
Unfortunately, any kind of covering is not acceptable. And intumescent paint may or may not be an option.
Thanks.
RE: Fire rating for Concrete Filled HSS Columns???
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