This connection details a structural steel brace framing into the bottom flange of a beam and girder intersection. A three-eighths-inch-thick gusset plate centered below the beam web connects via an L4x4x3/8 angle member, secured with two seven-eighths-inch-diameter ASTM A325 bolts. The gusset plate is welded to the supporting girder web with a one-quarter-inch fillet weld on two sides, while a separate gusset plate connects directly to the girder bottom flange at the working point. The brace angle is positioned to maintain standard edge distances and clearances.
L4X4X3/8 3/8" PL 1" MIN (2) 7/8" A325 BOLTS, TYP BEAM PER PLAN 1/4 1 1 CL GIRDER 1/4 2 SIDES, TYP 3"TYP 2" TYP 2" CG ANGLE WP 1 3/8" 3/8" PL CTRD BELOW BM WEB L4X4X3/8 3/8" PL 1" MIN (2) 7/8" A325 BOLTS, TYP BEAM PER PLAN 1/4 1 1 CL GIRDER 1/4 2 SIDES, TYP 3"TYP 2" TYP 2" CG ANGLE WP 1 3/8" 3/8" PL CTRD BELOW BM WEB
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