(not major news) Interesting field cheat
(not major news) Interesting field cheat
(OP)
Dunno how widely this is circulating, but someone just sent me some photographs of a bridge built some decades ago in which they just discovered recently that some of the holes in the bolted splice hadn't lined up during erection--so the contractor cut the bolts and used some small strips of metal to wedge the head side in one hole and the nut side in the other, so that it *looked* like the fasteners were installed!
Wow.
Let's hear it for factors of safety...
Hg
Wow.
Let's hear it for factors of safety...
Hg





RE: (not major news) Interesting field cheat
RE: (not major news) Interesting field cheat
Reminds me of that list of illustrations I've seen circulating by xerox, with all kinds of imaginary bolts to fit all kinds of errors, including an offset bolt shank to fit offset holes. Is that cartoon online anywhere?
Hg
RE: (not major news) Interesting field cheat
The bridge also supported an eight foot dia flue gas duct.
We found the bridge was anchored to the concrete by numerous very large bolts, many of which were simply bolt heads resin bonded to the steelwork to appear like they were full depth resin anchor bolts.
Possibly this practice is more widespread than imagined !!!
Cheers D W.
RE: (not major news) Interesting field cheat
Another one along those lines--not enough threaded rod extension to get the nut on, so they welded the nut to the end of the rod and then filled up the hole with weld metal.
And to think--these are just the cases that were caught and remedied!
Hg