Plate girder with web openings

[calculor1]

Have a 40 ft span plate girder (riveted) approximately 5 ft deep. I need to cut a 3ft x 3 ft hole in the web. Anybody have any references? The codes only seem to apply to class 1 and 2 rolled sections.

 

[Qshake]

Well, back to first principles. Where is the 3x3 hole going? Is it in a shear critical zone? Can the girder with the hole resist the loading within the code requirements? If not, hole should be reconsidered.

Regards,
Qshake

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[jrw501]

Have you taken a look at the references listed in the commentary of G8 in the AISC manual?