Structural · S-3ZF4H

Typical Gravity Moment Connection thru Column

Materials

Steel

Elements

Columns Beams Roofs Connections / Plates

Connections

Moment Connection Welded Connection Bolted Connection

About this detail

Steel beams frame continuously through a steel column using complete joint penetration welds at the top and bottom flanges with standard weld access holes. A shear plate welded to the column web secures the beam web with three seven-eighths-inch diameter erection bolts, reduced to two bolts for W8 or W10 shapes. Plate thicknesses are sized to match the beam web plus one-eighth inch, while stiffener plates match the greater beam flange thickness plus one-eighth inch using 50 KSI steel. Fillet welds of five-sixteenths-inch size tie the connection elements together across three sides.

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