Plan views detail the required blockout conditions and clearances for a buckling-restrained brace casing embedded in concrete. Low-density expanded polystyrene bead board one inch thick is provided at the sides, while the end clearance requires the larger of stroke dimension c and three inches. These indicated clearances represent blockout conditions required for the final installed state of the buckling-restrained brace, noting that larger blockouts may be required for installation.
PLAN VIEW LOW-DENSITY EXPANDED POLYSTYRENE IS TO BE 1" CLEAR ON ALL SIDES OF THE CASING FOR THE PORTION OF THE CASING THAT EXTENDS DOWN INTO THE SLAB AT STROKE "c" (3" MIN). c (STROKE DIM.) AT END CLEARANCE BETWEEN CASING AND CONCRETE, TYP. 1" T.O.C. 1" 1" T.O.C. T.O.C. LARGER OF "c" AND 3" 1" PROVIDE LOW-DENSITY EXPANDED POLYSTYRENE (BEAD BOARD) 1" THICK AT SIDES AND THE LARGER OF "c" AND 3" THICK AT END WHERE BURIED IN CONC, TYP MAINTAIN 1" AT SIDES AND THE LARGER OF "c" AND 3" AT END CLEARANCE BETWEEN CASING AND CONCRETE, TYP. LARGER OF "c" AND 3" LARGER OF "c" AND 3" INDICATED CLEARANCES REPRESENT BLOCKOUT CONDITIONS REQUIRED FOR FINAL INSTALLED STATE OF BRB. LARGER BLOCKOUTS MAY BE REQUIRED FOR INSTALLATION. LOW-DENSITY EXPANDED POLYSTYRENE PROVIDED BY OTHERS. EDGE OF GUSSET
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