A header beam connects to the structural column using three-eighths-inch by three-inch by four-inch plates on each side, secured with an erection bolt as required and welded with three-sixteenths-inch fillets and one-inch returns top and bottom. A separate detail shows a brace and plate connection bearing onto a column flange with a quarter-inch plate measuring one-quarter-inch by five inches by eight inches, fastened using three-quarter-inch diameter A325 bolts centered in one-and-a-half-inch vertically slotted holes on each side.
PL 3/8"X3X0'-4" EA SIDE, W/ ERECTION BOLT AS REQ'D HEADER BEAM PER 15/S5.35 3/16 MAX 1/2" COLUMN PER PLAN 3/16 1" RET T&B 1 33/64" TYP 1 1/2" 1 63/64" BEAM PER PLAN PL 1/4" x 5 x 0'-8" w/ 3/4"Ø A325 BOLT CENTERED IN A 1 1/2" VERT SLOTTED HOLE EA SIDE COLUMN PER PLAN TYP 1 1/2" 1/4 PL & BRACE PER 13/S5.51
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