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fire resistance design
#18893
03/30/09 11:43 AM
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Joined: Dec 2008
Posts: 10
Nitram
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Hody! I'm currently designing timber structures-columns, beams and so one. But I would like to know how do design timber structure fire resistance. Any literature or standards that could help me? Thanks! M
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Re: fire resistance design
[Re: Nitram]
#18894
03/30/09 12:15 PM
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Joined: Dec 2008
Posts: 10
Nitram
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Or even better perhaps some examples. Thanks
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Re: fire resistance design
[Re: Nitram]
#18895
03/30/09 12:24 PM
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Joined: Jan 2008
Posts: 918
bmike
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Pretty sure this is covered in the IBC and relevant local codes for 'Heavy Timber Construction'. I believe it specifies minimum sizes for members and decking and varies on use category, safety features (sprinklered?), number of occupants, gross square footage, etc.
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Re: fire resistance design
[Re: bmike]
#18896
03/30/09 12:26 PM
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Joined: Dec 2008
Posts: 10
Nitram
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Re: fire resistance design
[Re: Don P]
#18907
03/30/09 11:36 PM
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Joined: Nov 2006
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mo
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hi nitram, don't put a bunch of kindling in the living room.
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Re: fire resistance design
[Re: mo]
#18909
03/30/09 11:51 PM
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Joined: May 2002
Posts: 447
Will Truax
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Re: fire resistance design
[Re: Will Truax]
#18917
03/31/09 11:33 AM
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Joined: Dec 2007
Posts: 1,882
TIMBEAL
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Wane makes for large chamfers, but they have a higher sap content, what does that do for ignition?
Tim
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Re: fire resistance design
[Re: TIMBEAL]
#18922
03/31/09 09:02 PM
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Joined: Mar 2008
Posts: 570
OurBarns1
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As I recall, old fireplace lintels and wooden mantels were always built w/ chamfered edges.
Sharp edges have a smaller "cross section" (mass) and therefore heat up easily. The thinner edges could then ignite, thus lighting up the whole timber.
Don Perkins Member, TFG
to know the trees...
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Re: fire resistance design
[Re: OurBarns1]
#18924
04/01/09 12:58 AM
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Joined: May 2002
Posts: 447
Will Truax
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My home town (seems to be coming up alot lately) is ten miles downriver from this mill complex, it's full of heavy timber, Doug at that, NE was largly deforested of big timber at this point. And it's full of chamfers. They are not for pretty, they're for fire. http://en.wikipedia.org/wiki/Amoskeag_MillMost of the corporation buildings are still there.
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