Structural · S-5YZC8

Bottom Flange Lateral Brace Detail

Materials

Concrete Steel

Elements

Beams Decks Bracing Connections / Plates

Connections

Gusset Plate Bracing Connection Bolted Connection

About this detail

A bottom flange lateral brace connection is framed between wide-flange steel beams supporting a concrete fill on steel deck assembly. The diagonal brace member is connected via gusset plates welded with quarter-inch fillet welds and bolted using two seven-eighths-inch diameter A325 bolts at each end, with an option for three-sided fillet welding totaling eight inches minimum at the contractor's discretion. Additional shear studs are added typically at brace angles in adjacent deck flutes or at four inches on center. A three-eighths-inch full-depth stiffener is provided at the beam web where the deck has no fill, accompanied by an L4x4x3/8 angle. Gusset plate thicknesses are governed by edge distance requirements defined in the accompanying drawing notes.

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