These typical ceiling suspension and compression strut details illustrate attachment methods for various overhead structural conditions including structural steel beams, open-web joists, metal decking without concrete, and concrete-filled metal decks. Attachments utilize shot-in concrete anchors or pins secured through clips, straps, and rebar loops to anchor hanger and splay wires with specified minimum turns. Compression strut attachments employ steel angles and slotted tubes fastened with sheet metal screws and shot pins. Fireproofing is removed and replaced as required at steel beam attachment points.
BEAM CONNECTION (CISCA FIG 4-A) NON-SFRS STRUCTURAL STEEL MEMBER. REMOVE AND REPLACE FIREPROOFING FOR CONNECTION OF CLIPS 0.157 DIA. X 1/2" SHOT PINS (HILTI OR EQUAL) MIN 3/4" WIDE X 13 GA. CLIP (HILTI OR EQUAL) @ HANGERS HANGER WIRE (3 TURNS MIN) SPLAY WIRE (4 TURNS MIN) MIN 1" WIDE x 2" LONG x 13 GA. CLIP (HILTI OR EQUAL) @ SPLAY WIRES OPEN WEB JOISTS (CISCA FIG 4-B) WEB MEMBERS BOTTOM CHORD HANGER WIRE (3 TURNS MIN) SPLAY WIRE (4 TURNS MIN) MIN 3" WIDE x 4" LONG x 12GA STRAPS @ SPLAY WIRES METAL DECKING (MIN 20 GA) WITHOUT CONCRETE ROOF DECKING (CISCA FIG 4-C/D) (2) #8 x 1/2" SELF TAPPING SCREWS #3 x 12" REBAR. TIE HANGER WIRE TO REBAR WITH (3) WRAPS AROUND BAR AND ONE WRAP AROUND WIRE APPROVED SHOT-IN ANCHOR (HILTI OR EQUAL). CLIP PER FIG 4A ABOVE. SELF- TAPPING SCREWS ONLY ALLOWED PRIOR TO CONC. POUR STRUCTURAL CONCRETE FILL DECK W/ CONC. FILL (CISCA FIG 5-B/C/D) WIRE 'PIGTAIL' W/ 2" DIA LOOP & 4" TAIL (ONLY ACCEPTABLE W/ CONC. FILL) APPROVED SHOT-IN ANCHOR (HILTI OR EQUAL). CLIP PER FIG 4A ABOVE. APPROVED "RED HEAD" EYE BOLT IS ALSO ACCEPTABLE (LOAD TEST REQ'D) 1.5"x1.5"x13GAx3" ANGLE ATTACHED TO DECK W/ APPROVED SHOT PINS (HILTI OR EQUAL) SLOT END OF TUBE. FASTEN TO ANGLE W/ #10 x 2" S.M.S. CUT METAL STUD FLANGES & BEND 90 DEGREES. ATTACH TO STRUCTURE W/ APPROVED SHOT-IN ANCHOR (HILTI OR EQUAL). CHANNEL STRUT TUBE STRUT COMPRESSION STRUT ATTACHMENT BEAM CONNECTION (CISCA FIG 4-A) NON-SFRS STRUCTURAL STEEL MEMBER. REMOVE AND REPLACE FIREPROOFING FOR CONNECTION OF CLIPS 0.157 DIA. X 1/2" SHOT PINS (HILTI OR EQUAL) MIN 3/4" WIDE X 13 GA. CLIP (HILTI OR EQUAL) @ HANGERS HANGER WIRE (3 TURNS MIN) SPLAY WIRE (4 TURNS MIN) MIN 1" WIDE x 2" LONG x 13 GA. CLIP (HILTI OR EQUAL) @ SPLAY WIRES OPEN WEB JOISTS (CISCA FIG 4-B) WEB MEMBERS BOTTOM CHORD HANGER WIRE (3 TURNS MIN) SPLAY WIRE (4 TURNS MIN) MIN 3" WIDE x 4" LONG x 12GA STRAPS @ SPLAY WIRES METAL DECKING (MIN 20 GA) WITHOUT CONCRETE ROOF DECKING (CISCA FIG 4-C/D) (2) #8 x 1/2" SELF TAPPING SCREWS #3 x 12" REBAR. TIE HANGER WIRE TO REBAR WITH (3) WRAPS AROUND BAR AND ONE WRAP AROUND WIRE APPROVED SHOT-IN ANCHOR (HILTI OR EQUAL). CLIP PER FIG 4A ABOVE. SELF- TAPPING SCREWS ONLY ALLOWED PRIOR TO CONC. POUR STRUCTURAL CONCRETE FILL DECK W/ CONC. FILL (CISCA FIG 5-B/C/D) WIRE 'PIGTAIL' W/ 2" DIA LOOP & 4" TAIL (ONLY ACCEPTABLE W/ CONC. FILL) APPROVED SHOT-IN ANCHOR (HILTI OR EQUAL). CLIP PER FIG 4A ABOVE. APPROVED "RED HEAD" EYE BOLT IS ALSO ACCEPTABLE (LOAD TEST REQ'D) 1.5"x1.5"x13GAx3" ANGLE ATTACHED TO DECK W/ APPROVED SHOT PINS (HILTI OR EQUAL) SLOT END OF TUBE. FASTEN TO ANGLE W/ #10 x 2" S.M.S. CUT METAL STUD FLANGES & BEND 90 DEGREES. ATTACH TO STRUCTURE W/ APPROVED SHOT-IN ANCHOR (HILTI OR EQUAL). CHANNEL STRUT TUBE STRUT COMPRESSION STRUT ATTACHMENT
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