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RE: Welding across the flange?

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Title: RE: Welding across the flange?

>Why would an inspector caution against welding across a flange?

Is it a case where the flange is carrying load? If so, the caution may be well heeded, since the weld will melt into the cross-sectional area of the flange. There is some guidance for field modification and welding to existing structures in AISC Engineering Journal papers:

    Reinforcing Steel Members and the Effects of Welding,
    by R. H. R. Tide from the 4th Quarter, 1990 issue.

    Field Welding to Existing Steel Structures,
    David T. Ricker from the 1st Quarter, 1988 issue.

Hope this helps.

Charlie

P.S. You can call AISC 312/670-2400 to obtain reprints of EJ articles or get the EJ CD-ROM Archive CD here:

    http://www.aisc.org/pubs.asp?ar=36&co=160