Framing configurations and reinforcement requirements for floor and roof openings in composite steel deck construction. Openings are bounded by C8X11.5 channel framing members sized per plan or by additional two number four reinforcing bars placed on each side to compensate for interrupted slab reinforcement. Spacing limitations and lap splice requirements govern the layout of reinforcement around penetrations. Steel deck must be cut at least seven days after concrete placement unless specific small-opening criteria are met.
C - B - A - CHANNEL FRAMING BEAM (SEE PLAN) C8X11.5 C8X11.5 C8X11.5 C8X11.5 (2)#4 ADDITIONAL REINFORCEMENT EACH SIDE SEE NOTE 4 STEEL DECK SPAN DIRECTION OPENING SEE ARCHITECTURE AND MECHANICAL DRAWINGS FOR SIZE AND LOCATION NOTES: 1. NO REINFORCEMENT IS REQUIRED FOR OPENING SIZE LESS THAN 10" x 10" IF ALL OF THE FOLLOWING CRITERIA ARE MET: A. STEEL DECK WILL BE CUT AT LEAST 7 DAYS AFTER PLACING OF CONCRETE B. THE CLEAR DISTANCE TO THE ADJACENT OPENING OR OPENINGS IS 1'-0" OR MORE PARALLEL TO DECK SPAN AND 2'-0" OR MORE PERPENDICULAR TO DECK SPAN 2. SLAB REINFORCEMENT OR CHANNEL FRAMING IS REQUIRED FOR OPENINGS THAT DO NOT SATISFY NOTE 1 3. MULTIPLE OPENINGS THAT DO NOT SATISFY THE SPACING REQUIREMENTS OF NOTE 1 ARE TO BE CONSIDERED CLUSTERED OPENINGS AND SHALL RECEIVE CLUSTERED OPENING ADDITIONAL REINFORCEMENT. CLUSTERS SHALL BE TREATED AS ONE LARGE OPENING FOR SLAB REINFORCEMENT OR CHANNEL FRAMING 4. PROVIDE REINFORCEMENT SHOWN OR PROVIDE REINFORCEMENT BARS TO COMPENSATE FOR SLAB REINFORCEMENT INTERRUPTED AT OPENINGS, WHICHEVER IS LARGER. ALL INTERRUPTED BARS IN EACH DIRECTION SHALL BE COMPENSATED BY ADDITIONAL BARS AT EACH SIDE OF THE OPENING EQUAL TO 1/2 THE INTERRUPTED AREA 5. ATTACH DECK TO CHANNELS (TYPICAL) 6. IF SLEEVES ARE USED, THE SLEEVES ARE TO BE INSTALLED SUCH THAT STEEL DECK WILL BE CUT AT LEAST 7 DAYS AFTER PLACING OF CONCRETE 2'-0" MAX 2'-0" TYP TENSION LAP SPLICE TYPICAL 6'-0" MAXIMUM SLAB REINFORCEMENT 2'-0" TYP BEAM (SEE PLAN) E DETAIL C - B - A - CHANNEL FRAMING BEAM (SEE PLAN) C8X11.5 C8X11.5 C8X11.5 C8X11.5 (2)#4 ADDITIONAL REINFORCEMENT EACH SIDE SEE NOTE 4 STEEL DECK SPAN DIRECTION OPENING SEE ARCHITECTURE AND MECHANICAL DRAWINGS FOR SIZE AND LOCATION NOTES: 1. NO REINFORCEMENT IS REQUIRED FOR OPENING SIZE LESS THAN 10" x 10" IF ALL OF THE FOLLOWING CRITERIA ARE MET: A. STEEL DECK WILL BE CUT AT LEAST 7 DAYS AFTER PLACING OF CONCRETE B. THE CLEAR DISTANCE TO THE ADJACENT OPENING OR OPENINGS IS 1'-0" OR MORE PARALLEL TO DECK SPAN AND 2'-0" OR MORE PERPENDICULAR TO DECK SPAN 2. SLAB REINFORCEMENT OR CHANNEL FRAMING IS REQUIRED FOR OPENINGS THAT DO NOT SATISFY NOTE 1 3. MULTIPLE OPENINGS THAT DO NOT SATISFY THE SPACING REQUIREMENTS OF NOTE 1 ARE TO BE CONSIDERED CLUSTERED OPENINGS AND SHALL RECEIVE CLUSTERED OPENING ADDITIONAL REINFORCEMENT. CLUSTERS SHALL BE TREATED AS ONE LARGE OPENING FOR SLAB REINFORCEMENT OR CHANNEL FRAMING 4. PROVIDE REINFORCEMENT SHOWN OR PROVIDE REINFORCEMENT BARS TO COMPENSATE FOR SLAB REINFORCEMENT INTERRUPTED AT OPENINGS, WHICHEVER IS LARGER. ALL INTERRUPTED BARS IN EACH DIRECTION SHALL BE COMPENSATED BY ADDITIONAL BARS AT EACH SIDE OF THE OPENING EQUAL TO 1/2 THE INTERRUPTED AREA 5. ATTACH DECK TO CHANNELS (TYPICAL) 6. IF SLEEVES ARE USED, THE SLEEVES ARE TO BE INSTALLED SUCH THAT STEEL DECK WILL BE CUT AT LEAST 7 DAYS AFTER PLACING OF CONCRETE 2'-0" MAX 2'-0" TYP TENSION LAP SPLICE TYPICAL 6'-0" MAXIMUM SLAB REINFORCEMENT 2'-0" TYP BEAM (SEE PLAN) E DETAIL
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