Tuesday, October 9, 2007

Re: Choice between intermittent and continuous fillet weld in Crane girder ( I beam with channel top)

It would be helpful to know what class the crane is. For A or B
classes, intermittent welds are probably OK. I believe AWS does allow
intermittent welds in compression zones but you should check as I don't
have a copy of it. Some C class cranes may allow stitch welds but I
consider C class to be the dividing line between stitch and continuous
welds. I recommend reading "Crane Supporting Steel Structures- a Guide"
by Bob MacCrimmon and published by the Canadian Institute of Steel
Construction. A second edition will be coming out in the new year, but
the first ed is still good.
Most fabricators will choose to use intermittent welds, but a
knowledgeable one will be able to install a continuous weld with no
significant problems.
Gary

Sanjay Verma wrote:
>
> Fabricator is insisting in providing intermittent fillet weld in Crane
> girder (I-beam with channel top).
>
>
>
> I have seen continuous weld not a problem contrary to fabricator who
> is advocating that continuous weld will leave warped channel surface.
>
>
>
> Please advice / share your experience.
>
>
>
>
>
> Channel web thickness is .4 inch and recommended continuous weld is ¼.
>
>
>
> Best Regards,
>
> Sanjay Kumar Verma, P.E.
>
> 818-7203140
>
>
>

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