A structural steel beam web penetration is reinforced with a thick plate and welded connections. A circular cutout of four inches diameter is centered within the web, flanked by vertical stiffener plates measuring one foot one inch by ten and three-quarters inches by one inch thick. Three-sixteenths inch fillet welds secure the reinforcing plate, with specific notes restricting welding in the k-zone at the bottom flange. A section view shows the web cutout profile with notched plate details clearing the beam web flange radius and one-quarter inch fillet welds.
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