A structural steel column connects to a Grade 50 base plate with thirteen 2-inch diameter F1554 Grade 36 anchor bolts equipped with 3/4-inch by 4-inch by 4-inch washers and double nuts. The column base assembly features a gusset plate provided per the buckling-restrained brace manufacturer and is set inside a concrete footing pocket. Infill concrete is specified to be cast after the column base plate has been grouted. A control joint or construction joint surrounds the pocket layout, which is reinforced with centered number 4 trim bars.
2'-0" 4'-6" C L C L C L C L C L C L C L 3 1/2" 11 1/2" 11 1/2" 8" 8" 8" 3 1/2" TYP 4" C L 8 1/2" 8 1/2" 3 1/2" CL COL CL COL GUSSET PLATE PER BRB MFR OMIT AT SIM GR50 BASE PL2 1/2 x AS SHOWN W/ (13) 2"Ø F1554 GR36 AB'S W/ PL3/4x4x0'-4" WASHERS & DBL NUTS STL COL PER EL FTG POCKET AS SHOWN 1/2 1/2 1/2 1/2 TYP NOTES: 1. PROVIDE MINIMUM THREAD PROJECTION OF 1/2" ABOVE TOP OF EACH NUT. 2. REFERENCE DETAIL 7/S3.22 FOR SLAB CONTROL JOINT. CL COL CONTROL JOINT OR CONST JOINT PER 9/S3.22 INFILL CONC TO BE CAST AFTER COL BASE PL HAS BEEN GROUTED GUSSET PL PER BRB MFR, OMIT AT SIM BASE PL & AB'S PER PLAN CONC FTG POCKET PER PLAN #4 TRIM BAR, CTRD, TYP STL COL PER PLAN (CTRD ON BASE PL AT SIM) TYP 2" CLR TYP 6" MIN
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