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Re: Field welding

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Yeah, the EOR can require a reduction be taken. It may not be common, but it is his/her license on the line if it fails. In fact, I wouldn't be surprised if either (1) the EOR knew who the intended contractor was and had problems in the past with them or (2) has had a failed weld in a structure in the past, and the forensics pointed to poor field welding practices or pre/post heat problems. These kinds of overdesign usually don't come right out of thin air.

If you disagree, and you feel there is legitimate cost savings by strictly adhering to AWS1.1 and the AISC code, write up a change order proposal. If the dollars are big enough, have each welder on the job run a sample "field" weld for inspection or destructive testing. In this case, you need to prove that your field welding will be proper, and that it will save the owner real money, OR that the preheat is detrimental to the weld. Otherwise, you'll just be pissing of the EOR for no good reason. Chances are you'll piss off the EOR either way, but if its a safety issue or a serious cost issue it's probably worth ruffling a few feathers.

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