A heavy steel moment connection joins a W14X211 column and W12X72 and W10X88 beams using a W10X22 stub beam. The stub beam connects to the column with a 1-inch thick by 16-inch end plate secured by twelve 1-inch diameter A325N bolts, complemented by 45-degree complete-joint-penetration welds at the top and bottom flanges. The intersecting beam frames into the stub beam web via a 1/2-inch by 14-3/8-inch shear plate fastened with six 1-inch diameter F1852 bolts. Fillet welds of 3/16-inch and 1/4-inch sizes are specified throughout the assembly, explicitly noting to leave the column k-area unwelded.
BEAM W12X72 6 - 1"Ø x 2 1 2 / " F1852 SHEAR_PLATE PL 1 2 / "X14 3 8 / " 6a 316 / 316 / NOT WELD K AREA 316 / 316 / NOT WELD K AREA 14 / 14 / STUB_BEAM W10X22 COLUMN W14X211 12 - 1"Ø x 3" A325N 316 / 316 / NOT WELD K AREA 6 - 1"Ø x 2 1 2 / " F1852 COLUMN W14X211 END_PLATE PL1 1 2 / "X16" 1" ( 3 8 / ) 45° CJP TOP & BOTT 14 / BEAM W10X88 STUB_BEAM W10X22 BEAM W12X72
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