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Core filled steel columns

Core filled steel columns

Core filled steel columns

Hey Everybody,

Does anyone have any design guidelines that includes fire-resistance performance?  I'm currently using a 2002 Onesteel (Australian steel manufacturer) paper, but it's not very useful for any columns taller then 2m.


RE: Core filled steel columns

I have always run with the assumption that grout filling a steel tube increases the fire resistance period (FRP) but have never found concrete evidence of what FRP it is increased by.

RE: Core filled steel columns

CIDET (Europe) has done a lot of research into this.  In addition, the old Stelco has a publication on this, if you can dig up a copy.


RE: Core filled steel columns


The National Building Code of Canada and the Canadian Design of Steel Construction Standard (Limit states design of Steel Structures CAN/CSA S16-01) both have instructions and formulas for that topic.

Good luck.

RE: Core filled steel columns

Could you be a little more specific, StrucConsultant?  What article?  I looked for it but couldn't find it.


RE: Core filled steel columns

Thanks all for the links and info.  Given me quite a bit to get through.

RE: Core filled steel columns

Hey again, has anyone reviewed "Design guide for structural hollow section columns exposed to fire" by L. Twilt, R. Hass et al?  

RE: Core filled steel columns

I'll have to find it, I don't have that with me here.  We've done some buildings a few years back with those columns. I'll let you know.

RE: Core filled steel columns

Thanks StrucConsultant

RE: Core filled steel columns

Here we go :

National Building Code - Canada 2005
Volume 2
Division B
Appendix D


CAN/CSA S16-01 - Limit States Design of Steel Structures

I hope this will help.

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