Foam Filled Tube Steel
Foam Filled Tube Steel
(OP)
I have some tube steel sections in a maritime structure that we're planning on filling with foam. The tube steel will be capped on both ends with steel plate. The foam is only to reduce the possibility of sinking the steel if the seal welds aren't perfect, and to reduce the possiblility of bursting the tubes during freezing temperatures. We've done this several times before, but the tubes were only partially filled with foam because the steel was only partially submerged.
My specific concerns are with welding the cap plates on after filling with foam. The expanding foam can produce cyanide gas when exposed to high temperatures and I don't want to hurt any welders.
Has anyone dealt with this before? How did you deal with welding? I'm thinking of having just a small injection port for injecting the section with foam and covering that with a welded plate. That should minimize the amount of welding. Are there any other ways to get around this?
Are there any other concerns when completely filling tubes with foam?
Thanks.
My specific concerns are with welding the cap plates on after filling with foam. The expanding foam can produce cyanide gas when exposed to high temperatures and I don't want to hurt any welders.
Has anyone dealt with this before? How did you deal with welding? I'm thinking of having just a small injection port for injecting the section with foam and covering that with a welded plate. That should minimize the amount of welding. Are there any other ways to get around this?
Are there any other concerns when completely filling tubes with foam?
Thanks.






RE: Foam Filled Tube Steel
Welders can be outfitted with SCUBA like devices and work safely
RE: Foam Filled Tube Steel
I think for the filling, they'll have to use an injection hose similar to a tremie slab to ensure good distribution of the foam.
RE: Foam Filled Tube Steel
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: Foam Filled Tube Steel
RE: Foam Filled Tube Steel
RE: Foam Filled Tube Steel