fire resistance design
#18893
03/30/09 11:43 AM
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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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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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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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Nitram
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Re: fire resistance design
[Re: Don P]
#18907
03/30/09 11:36 PM
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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
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Will Truax
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Re: fire resistance design
[Re: Will Truax]
#18917
03/31/09 11:33 AM
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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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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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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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Re: fire resistance design
[Re: Will Truax]
#18937
04/01/09 01:57 PM
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Ken Hume
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Hi Will,
"Loose your reputation to regain it, but it is never the same".
Regards
Ken Hume
Looking back to see the way ahead !
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Re: fire resistance design
[Re: Ken Hume]
#18943
04/01/09 09:37 PM
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OurBarns1
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Putting a log in the wood stove today, I thought of this whole chamfer thing.
We usually never put a round, unsplit log in the stove til there are a good amount of coals to get it going. Wide chamfers help a post or beam resemble a round log.
By contrast, if you put a split piece of wood in the fire on the coals, esp. the thin triangle edge near the center, it lights pretty quickly.
Don Perkins Member, TFG
to know the trees...
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Re: fire resistance design
[Re: OurBarns1]
#18944
04/02/09 12:21 AM
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bmike
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those log guys... always way ahead of the curve!
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