Heat Treat Pre-engineered building column
Heat Treat Pre-engineered building column
(OP)
We have a building that has been hit by an excavator. The web of the building wide flange column has been buckled, and the flange displaced out of it's plane.
Anyone ever use heat straightening to fix something like this? AISC claims it's more of an art than science. I'm not sure if this is the technique to try, or just cut the column and weld one a new section.
A.
Anyone ever use heat straightening to fix something like this? AISC claims it's more of an art than science. I'm not sure if this is the technique to try, or just cut the column and weld one a new section.
A.






RE: Heat Treat Pre-engineered building column
Not something I have ever tackled, however as long as this isn't a moment resisting frame member, or another "harder" working member type (or zone of a typical member) I would have no problem trying it; With instructions I was confident in and understood completely.
To that end, go have a look at:
http://isddc.dot.gov/OLPFiles/FHWA/009569.pdf
The file is very big, but comes from:
http://www.fhwa.dot.gov/bridge/heat.htm
Looks like something that might be quite useful to you.
Good luck!
YS
B.Eng (Carleton)
Working in New Zealand, thinking of my snow covered home...
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column
Also agreeing, apart from difficulties doing the job, how could you ensure that the material had the right metallic structure and necessary strength?
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column
A
RE: Heat Treat Pre-engineered building column
Dik
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column
I'll add that MB guys will take a look at situations like this. I heard a while back that Star looks at retrofit, etc. applications from time to time. Those guys are top notch, in my experience, when it comes to really doing things "right."
I've worked on a lot of both, and it is truly amazing how much more analysis goes into these than a typical steel bldg.
RE: Heat Treat Pre-engineered building column
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column
Good luck,
YS
B.Eng (Carleton)
Working in New Zealand, thinking of my snow covered home...
RE: Heat Treat Pre-engineered building column
Dik
RE: Heat Treat Pre-engineered building column
RE: Heat Treat Pre-engineered building column