Plan views illustrate a buckling-restrained brace casing extending into a concrete slab with specific clearance requirements. Low-density expanded polystyrene bead board one inch thick is positioned at the sides of the casing, while the end clearance requires the larger of stroke dimension c and three inches. Indicated clearances represent blockout conditions required for the final installed state of the buckling-restrained brace, though larger blockouts may be necessary for installation. The low-density expanded polystyrene is provided by others.
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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