Old weld symbol
Old weld symbol
(OP)
This is a new one for me. In the attached welding detail from a 1957 era drawing they show two details for various thicknesses. The only difference is one weld all around symbol has a dot in the middle. What does this dot mean?
Maine EIT, Civil/Structural.






RE: Old weld symbol
RE: Old weld symbol
Maine EIT, Civil/Structural.
RE: Old weld symbol
RE: Old weld symbol
Mike McCann, PE, SE (WA)
RE: Old weld symbol
RE: Old weld symbol
The open circle meant weld all around. The solid dot meant field weld. We couldn’t afford so many flags in the olden days, Bettsy Ross still held the patent on the flag at that time.
RE: Old weld symbol
RE: Old weld symbol
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: Old weld symbol
Maine EIT, Civil/Structural.
RE: Old weld symbol
I don't remember any problem seeing the dot.
What does surprise me is that the shop welds are all round, this means they have to flip the column or weld overhand. I expect to see weld on the outside of one flange, on the inside of the other flange and one or both sides of the web. Of course, moment connections are different, they may justify the extra work.
Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin
RE: Old weld symbol
Mike McCann, PE, SE (WA)
RE: Old weld symbol
Next they'll come up with a contraption to replace slide rules.
RE: Old weld symbol
Mike McCann, PE, SE (WA)
RE: Old weld symbol
Mike McCann, PE, SE (WA)
RE: Old weld symbol
RE: Old weld symbol