Hi Kip.
I looked up your comment in D1.1. Section F, Paragraph 6.20.1 is the paragraph I believe you are talking about.
It states, "Procedures and Standards", states the following: "These procedures and standards shall be prohibited for testing tube-to-tube T-, Y-, or K- connections."
If these trusses are considered a T-, Y- or K- tube-to-tube connection, then you are absolutely right.
Had to look close at that one, though.
By -
Date 06-27-2005 13:43
Yes you are right about that, and I was incorrect about Annex K. Annex K can be used only with the Engineer's approval, so if that situation does not apply, you would use 6.27.
While this section of the code applies primarily to TKY connections, some guidance for FTorre's situation can be found in paragraph 6.27.1, where it states "conventional techniques are generally limited to diameters of 12-3/4" and larger...). Further guidance can be found in paragraph C6.20.1 where it states "most groove welds may be satisfactorily tested using the provisions of Section 6, Part E."
Note that here it specifically says "most groove welds".
In FTorre's situation the OD/ID ratio should be considered as well as how this may affect the UT techniques that should be employed, and anything special that is done for these joints should be reflected in the UT procedure.
Mankenberg
Thanks to all of you. With your help and suggestions I was able to find a solution. I am very greatful. I'm sure I'll have more questions for you in the future.
As far as contoured wedges, I have cheated and used a piece of emory cloth wrapped around the diameter pipe (that I wanted to check) and shaped the bottom of a spare wedge to match the pipe. Do not remove alot of material, just enough to prevent rocking and use a heavy coat of couplant. This was only for checking splices perpendicular to the length of the pipe, not for T,K or Y connections. Anchor bolts were set 3 feet too deep and we had to add 3 feet of length to the pipe columns.
Need your Level III to advise you when you run up on situations out of the scope of your procedures.
John Wright