Steel girders frame into a vertical steel column using a three-quarter-inch cap plate secured with two three-quarter-inch diameter A307 machine bolts at each end. Three-eighths-inch thick stiffener plates are welded to the column web beneath the bearing seats with five-sixteenths-inch fillet welds. A plate per detail 6/SD.4 is notched and welded to the beam shear plate, while a steel beam is omitted for clarity. A complete joint penetration weld ties the components at the column centerline, and five-sixteenths-inch fillet welds secure the connection at eleven-inch spacing.
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