Welding to Concrete Filled Hollow Steel Sections
Welding to Concrete Filled Hollow Steel Sections
(OP)
I've been taught by mentors long ago, to avoid welding to concrete filled hollow steel sections, especially when the wall of the steel section is thinner than the weld size. The thought is that if you produce enough heat, it will produce a small explosion in the concrete voids, due to expansion of residual water vapor.
Someone in my office is asking about this very subject and wanted to know if this phenomenon can be substantiated by an authoritative article on the subject. I didn't think this would be a problem to find, but am having trouble finding much of anything on the subject.
So, does anyone here have experience with this issue or know of a source that I may point to to either substantiate or refute avaoiding welding to concrete filled hollow sections?
Many thanks.
Someone in my office is asking about this very subject and wanted to know if this phenomenon can be substantiated by an authoritative article on the subject. I didn't think this would be a problem to find, but am having trouble finding much of anything on the subject.
So, does anyone here have experience with this issue or know of a source that I may point to to either substantiate or refute avaoiding welding to concrete filled hollow sections?
Many thanks.





RE: Welding to Concrete Filled Hollow Steel Sections
I don't know but I'll bet that 'someone' has too many university degrees. Beware of bosses who make you jump through unnecessary hoops.
RE: Welding to Concrete Filled Hollow Steel Sections
One of the flanges was welded in the wrong orientation. I first proposed cutting through the square tube to rotate it. The (experienced) fabricator/welder refused to attempt it, citing personal danger from liquid metal being propelled by exploding concrete. We talked some more, and were able to save the part by cutting through the flange at the tube periphery, rotating the flange, and rewelding it.
Mike Halloran
Pembroke Pines, FL, USA
RE: Welding to Concrete Filled Hollow Steel Sections
http://www.FerrellEngineering.com
RE: Welding to Concrete Filled Hollow Steel Sections
RE: Welding to Concrete Filled Hollow Steel Sections
LobstaEata, see thread507-290241: Welding to plate embedded into concrete and h
I hope you can enhance your knowledge on this matter.
El que no puede andar, se sienta.
RE: Welding to Concrete Filled Hollow Steel Sections