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Double Bevel Grove Weld to a Rod

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Parkite

Structural
Apr 14, 2017
7
Hello the wonderful people of Eng-Tips,

I have a question on a unique weld. Attached is a weld symbol I made based off a double bevel PJP weld. Is this as correct as possible? This will be tested before it goes into a structure, however I want to ensure it is as AISC accurate as possible.

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Well, "Grove" should be "Groove" .

What is the SIM?
The "PJP"? Part number abbreviations the assembly shop will know?

What is the final shape of the outside of the joint? Convex? Concave fillet?
Do you need a full joint penetration? The "tip" of the piece will very likely not melt through with a "V" weld prep that thick.
 
Thank you on the typo. To answer your questions

PJP is an abbreviation for Partial Joint Penetration weld. The outside shape of the joint should be flat or concave. The plate is 3/4" thick with (2) 5/16" 45-degree bevels, an 1/8" root face. This is following the AISC standard weld, the only change I did was I rotated the weld symbol 180-degrees.
 
The information shows the correct intent, but the symbol is not standard.

"Everyone is entitled to their own opinions, but they are not entitled to their own facts."
 
Parkite:
The flat bar is .75” thk., what dia. is the round bar? What length is the weld and assembly? Do you really need all that weld for your loads, forces and stresses? When I run into an unusual detail like that, I usually draw it full scale, for my own detail design benefit, and know something about the welding processes and materials which will be used, so I can make some judgement about weld bead size, etc. I would be tempted to leave a .25” land on the flat bar and make 2 - .25” x 45 deg. bevels on the bar, and maybe make the bevels .25” x 60 deg. The weld symbol looks o.k. to me, although not std. as I.M. suggests, but I would be temped to leave all the numbers off of it, and instead detail the flat bar so there can be no mistake about my intent. I would put a center line through your sketch, on both pieces, showing that they line up, and I would dimension the width and thk. of the bar and the size of the bevels on the bar. A straight line or a convex line (half moon shape) under the ‘groove symbol’ shows the weld surface should end up flat, or convex, as a final surface contour.

 
That was the purpose of my answer as well. But you phrased it better than I.

"What is the required final geometry of the weld joint and all of its ground surfaces?" rather than "What kind of non-standard weld symbol can I conjure together so somebody else can interpret my symbol the way I hope they interpret my (new) symbol?"
 
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