Hole in plate girder web
Hole in plate girder web
(OP)
I recently designed a plate girder approximately 5 feet in depth with a 5/8" thick web, the span is 30'. It supports a 5" concrete floor and 2 steel columns above. The contractor wants to drill a 4" hole 4 feet from midspan and 1/3 of the way up from the bottom. Does anyone know of a method to check this condition that can be done simply with hand calculations (i.e. not FEA)? I was also interested in determining the impact of torch cutting or wet drilling the hole. Any thoughts?






RE: Hole in plate girder web
RE: Hole in plate girder web
RE: Hole in plate girder web
RE: Hole in plate girder web
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RE: Hole in plate girder web
I have a project right now that requires girder penetrations for moment frames. The openings are carefully inspected for compliance with the code and any additional project-specific requirements. If this is a concern, you may specify mechanically-assisted cutting (not freehand), surface/edge profiles whcih exceed the code, NDT, etc. for the cut edges.
RE: Hole in plate girder web