wrote in message
ups.com...
Hello

Our house has a steel framed, spiral (well, helical actually)
staircase. At four or five points (generally underneath the treads,
which can be removed) the frame has snapped.

My question is .... is this the sort of thing it is generally possible
to weld 'in place', or does it sound as if the stairs will have to be
dismantled, taken somewhere off-site, welded, then reinstalled?

The wooden stairs can be removed easily enough, leaving just the frame,
but the stairs are in the corner of the room, which is why I'm
suspecting the welding will have to take place elsewhere.

Any ideas?


If the stairs are steel they can be repaired in situ, best done with an arc
welder using high carbon rods for strength. You will need some fire blankets
to protect the surrounding area.

If they are cast iron they will need to be removed, taken to specialist
welding firm and pre-heated before they are welded, or the stress of the
weld shrinking on cooling may cause further fractures.