This structural steel detail shows a typical beam-to-beam moment connection joining two steel beams end-to-end. The connection is made with complete joint penetration welds on the top and bottom flanges, incorporating standard weld access holes typically. The web connection uses a fifty KSI web plate sized to the beam web thickness plus one-eighth inch, secured with three seven-eighths inch diameter erection bolts on each side. The web plate is welded with five-sixteenths inch fillet welds on three sides, complete with one-inch returns typically.
2/3" BM DEPTH MIN STL BM STL BM WELD ACCESS HOLE (TYP) 50 KSI WEB PL = BM WEB THICKNESS + 1/8" W/ (3) 7/8" Ø ERECTION BOLTS (TYP) 5/16 5/16 (3) SIDES, TYP 5/16 W/ 1" RETURNS, TYP CJP T&B FLANGE, TYP
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