Gravity column base plate details and schedule showing anchor bolt layouts and fillet weld sizes for structural steel columns. Wide flange columns such as W10x, W12x, and W14x utilize base plates ranging from 1 1/4 inches to 2 inches thick with 5/16-inch typical fillet welds. Hollow structural section columns such as HSS8x8 and HSS10x10 utilize 1-inch thick base plates with 1/4-inch typical fillet welds. Anchor bolt sizes and embedment are referenced to detail 6 on sheet S-5511. Bolt spacings 'S' vary from 6 inches to 10 inches depending on the column size.
COLUMN SIZE BASE PL THICKNESS 't' SPACING 'S' GRAVITY COLUMN BASE PLATE SCHEDULE TYP. AT WF COLUMN ANCHOR BOLT - SEE 5/16 5/16 5/16 TYP. 5/16 TYP. W10x 1 1/4" 7 1/2" 6 S-5511 2" 'S' 'S' 2" 2" 'S' 'S' 2" HSS8x8 1" 6" W12x 1 1/2" 8 1/2" HSS10x10 1" 7" 2" 'S' 'S' 2" 2" 'S' 'S' 2" 1/4 TYP. AT HSS COLUMN ANCHOR BOLT - SEE 6 S-5511 W14x 2" 10"
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