An HSS beam frames into an HSS column using top and bottom L4x4x1/2 structural angles cut to the column width. The angles are welded to the HSS column with 5/16-inch fillet welds on both sides typically. The HSS beam is welded to the angles with 1/4-inch fillet welds on three sides typically at the top and bottom. A maximum 1/2-inch clearance is provided between the beam end and the column face. The larger side of the HSS is oriented vertically unless noted otherwise.
L4x4x1/2 x COL WIDTH TOP & BOT HSS COLUMN LARGER SIDE OF HSS UNO HSS BEAM 5/16 BOTH SIDES TYP 1/4 3 SIDES 5/16 BOTH SIDES 1/4 3 SIDES MAX 1/2" CLR 1/4 TYP T&B .
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