Burned wood capacity check
Burned wood capacity check
(OP)
Hi,
I have to verify a wood structure that was affected by fire. I was wondering if there was a normalized code verification. How do you evaluate the resistance of a wood section affected by fire. Do you just remove a the burned layer and re evaluate the good wood section ?
Any experience to share ?
Thank you
Gasma1975
I have to verify a wood structure that was affected by fire. I was wondering if there was a normalized code verification. How do you evaluate the resistance of a wood section affected by fire. Do you just remove a the burned layer and re evaluate the good wood section ?
Any experience to share ?
Thank you
Gasma1975






RE: Burned wood capacity check
RE: Burned wood capacity check
RE: Burned wood capacity check
M.S. Structural Engineering
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)
RE: Burned wood capacity check
Caused a LOT of problems digging out the "coal and charcoal" from the wood. Biook says they refilled the holes with concrete and grout.
Bottom line? Check very carefully you have found and excavated ALL of the charred volume out - not only on the surface but down inside the beams.
RE: Burned wood capacity check
Dik
RE: Burned wood capacity check
RE: Burned wood capacity check
I have asked this question many times in the past and it seems like for light framed members (i.e. 2x's) there is not much information and/or testing. Why? Well I believe this is because once there is char on a 2x member there is basically nothing left. If it is only smoke damage than that may be a different story.
Response I received from AWC (American Wood Concuil aka the NDS people):
For SCL type products (LVL, etc) typical response:
EIT
www.HowToEngineer.com
RE: Burned wood capacity check
The coating is to encapsulate the smell of the burned wood... Also, there are specialised contractors that deal with fire damage. It just takes a small area not treated to provide a burned smell and there is specialised treatment that is continually improving and a contractor should be up on these products.
Dik
RE: Burned wood capacity check