A W18 collector beam frames into a wide-flange column using a 5/8-inch Grade 50 plate secured with fifteen 3/4-inch diameter A325N bolts spaced at 3 inches on center. The column is reinforced with 3/4-inch Grade 50 continuity plates and a 3/4-inch by 9-inch by 1-foot 10-inch plate anchored into concrete with five #7 by 6-foot A706 dowels.
W18 COLLECTOR BEAM SEE PLAN 21 S5.1 PL 5/8 (GRADE 50) W/ (15) 3/4" DIA A325N BOLTS 1 1/2" 4 @ 3" OC 2" 3" 3" 2" 1/2" CONTINUITY PL - 3/4" (GRADE 50) WF COL, SEE PLAN 2" 2" CP 11 1/4" 1/2 2" 4 1/2" 4 1/2" 4 1/2" 4 1/2" 2" 1/2" 6 1/2" 1/2 PL 3/4"x9"x1'-10" (GRADE 50) PL 3/4" (GRADE 50) W/ 5#7x6'-0" A706 DWLS 6" CP 1/2
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