This structural slab plan details a vault opening with a three-quarter-inch expansion joint around its perimeter and a control joint positioned above. A thickened edge frames the slab boundary. Number four reinforcing bars are placed each way top and bottom at slab openings, extending one foot six inches beyond the opening on each end.
34'-10 3_ 4 " 9'-1" 16'-8 3_ " 9'-1" 2'-0 1_ 4 " 8'-9 THICKENED EDGE CONTROL JOINT ABOVE 3/4" EXPANSION JOINT AROUND VAULT, TYP. #4 E.W. T&B AT SLAB OPENING, TYP. EXTEND 1'-6" BEYOND OPENING EACH END
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