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HomeMy WebLinkAbout2769-11.41 22 23 METAL SUSPENSION SYSTEMS FOR LAY IN PANEL CEILINGS 1. 12 GA. (MiN.) hanger wires may be used for up to and including 4'-0" x 4'-0" grid spacing along main runners. 2. Provide 12 ga. hanger wires at the ends of all main 45� and cross runners within 8" from the support or within 1/4 of the length of the. end tee, whichever 0 45" is least, for the perimeter of the ceiling area. 3. Provide trapeze .or other supplementary support members at obstructions to main hanger spacings. Provide additional hangers, struts or braces as required of all 2„ ceiling breaks, soffits, or discontinuous areas. Hanger wires that are more than 1 in 6 out of plumb are to have counter -sloping wires. 4. Ceiling grid members may be attached to not more HEAVY-DUTY GRID than 2 adjacent wails. Ceiling grid members should LIGHT FIXTURE: CROSS RUNNER be at least 1/2 inch free of other walls. If walls run W/ (2) i2 GA. HANGER WIRES NOTE: diagonally to ceiling grid system runners, one end of AT ALTERNATE CORNERS TO LIGHT FIXTURES OR DIFFUSERS MAIN 12 GA. SPLAY 'WIRE BRACING IN main and cross runner should be free and a minimum THE STRUCTURE ABOVE. IN EXCESS OF 56 POUNDS RUNNER PLANE OF EACH RUNNER VERT. of 1/2 inch clear of wall. REQUIRE (4) 12 GA. HANGER ANGLE 0 45 DEG. (TYP.) MiN. AIR -DIFFUSER: WIRES. 4 TIGHT TURNS IN 1 1/2- 5. At the perimeter of the ceiling area where main or W/ (2) 12 GA. HANGER WIRES - BOTH ENDS OF WIRE TYP. cross runners are not connected to the adjacent wall AT ALTERNATE CORNERS TO � , THE STRUCTURE ABOVE. provide interconnection between runners at the free FILE/CSI NUMBER: REMSION DATE: JOB NUMBER: FILE/CSI NUMBER: A24-04 REVISION DATE: JOB NUMBER: end to prevent lateral spreading. A metal strut or a > 16 ga. wire with a positive mechanical connection to17 FIXTURE 13RACING 1�213 SPLAY DpACiNV 3"=1'-O $ the runner may be used. Where the perpendicular distance from the wall to the first parallel runner - is 12 or less, this interlock is not required. 6. Provide sets of four 12 ga. splayed bracing wires STRUCTURAL STEEL RAL DR SEE trs 2'-l2" oriented 90 degrees from each other at not more WGS PLYWOOD SHEATHING than 12 feet by 12 feet on center. t , "HILTi" SHOT -IN ANCHOR Provide bracing wires at locations not more than NO. DN27P87 OR 2X ROOF FRAMING OR 6 feet from eachperimeter wall and at the edge APPROVED EQUAL BLKNG. WHERE OCCURS of vertical ceiling offsets. HANGER WIRE CRIMP TOP OF TUBING FLAT The slope of these wires should not exceed 45 --_ degrees from the plane of the ceiling and should SPLAY OR BRACE z, ATTACH TOP WiTH (2) #12 X 1-1/2" be taut without causing the ceiling to lift. Splices WiRE I LONG R.H. WOOD SCREWS, (TYP.) in bracingwires are not to be AT STEEL BEAMS �� special Building Dept approval. Permitted without i � P 9 P 2- 2 1/2" X 20 GA. MTL STUD T 7. Fasten hanger wires with not less than 3 tight turns. Fasten bracing wires with 4 tight turns. Make all SHEATHING 3/4" DIA. 14 GA. STL• TUBING tight turns within a distance of 1-1/2 inches. Hanger or bracing wire anchors to the structure should be installed in such a manner that the x SECURE SECTIONS direction of the wire aligns as closely as possible MQ i X W/ (2) SET #10 SCREWS with the direction of the forces acting on the wire, WOOD JOIST, SEE ¢ i i STRUCTURAL DRWGS ti a.Q i I � i i Note: Wire turns made by machine where both strands have been deformed or bent in wrapping can -o waive the 1 1/2" requirement, but the number of —1/4" DIA X 4" SCREW EYE o ;U-) 1/2" DIA. 14 GA. STL. TUBING- turns should be maintained, and be as tight as possible. W/ FULL THREAD EMBED-cv CRIMP BOTTOM FLAT MENT (1 -1/4 -),MIN.. (TYP.) Cq 8. Separate all ceiling hanging and bracing wires at least HANGER WIRE 1 ATTACH TO MAIN RUNNER WiTH 6 inches from all unbraced ducts, pipes, conduit, etc. 2- #12 SHEET METAL SCREWS TYP. It is acceptable to attach lightweight items, such as '`"----SPLAY OR BRACE single electrical conduit not exceeding 3/4" nominal AT WOOD J01 ST WIRE PROVIDE SOLID METAL SHEET diameter, to hanger wires using connectors acceptable FILLER AT T -BAR CONN. TYP. to Building Dept. HAVC ductwork, electrical distribution, telephone services, FELE/CSI NUMBER: MT8054 REVISION DATE: JOB NUMBER: FILE/CSI NUMBER: REVISION DATE: JOB NUMBER: computer cable distribution, and other services normally found in a ceiling space, shall be independently supported 18 HANGER/SPLAY WIRE 1 1/2 )1=1 l_0$l COMPRESSION c 3 $_=1 -0 10 and appropriately braced to eliminate any lateral force on the ceilingmembrane or bracing elements. g 9. When drilled -in concrete anchors or shot -in anchors are used in reinforced concrete for hanger wires, 1 out of FACE OF WALL 10 must be field tested for 200 pounds of tension. 8" MAX. When drilled -in concrete anchors are used for bracing wires, 1 out of 2 must be field tested for 440 pounds of tension. Shot -in anchors ' in concrete are not MI GA. HANGER WIRE, " permitted for bracing wires. If an shot -in or - FRAMING, SEE MIN. (3) TURNS IN 1-1 P . g Y STRUCTURAL DWGS drilled -in anchor fails, all adjacent anchors must be �\ tested. Drilled -in or slot -in anchors must be tested. ` SUSPENDED Drilled -in or slot -in anchors require special building CEILING SYSTEM dept. approval when used in prestressed concrete. ` 10. Attach all light fixtures to the ceiling grid runners to resist a horizontal force equal to the weight of RUNNER the fixtures. 5/8" GYP BOARD All recessed lighting fixtures having a nominal end \\ dimension of 24 inches or greater, shall be positively x LAY -IN ACOUSTICAL attached to the ceiling grid runner(s) at the end of t° PANEL the fixture with two #8 self tapping Tek screws, each -'" JNSULATiON screw shall be located within 3" of the side of the fixture and attached through the bulb of the ceiling POP RIVET grid runner(s). Light fixtures having less than a :^c•,..�..:: 2T" �tt� vn1►c11JIVi1 5huii be -attacnea with one 1"' X 1" WALL ANGLE FASTENED TO - / #8 self tapping Tek screw at the center of each end LJEACH STUD of the fixture, attached to the bulb of the ceiling a grid runner(s). All attachments shall be capable of > WALL STRUCTURE & FINISH laterally supporting 9 METAL CORNER BEAD y ortin the weight ht of the fixture. All NOTES: fixtures regardless of weight or size shall have 9 ceiling ki l t nerocn rid runners 1. NAILS AT ENDS OF HORIZONTAL STRUTS i 9 9 runner(s) on all 4 sides of ARE TO BE PLACED WITH NAIL HEAD TOWARD the fixture. -CENTERLINE OF SPAN STRUT FILE/CSI NUMBER: MTB192 REVISION DATE: JOB NUMBER: FILE/CSI NUMBER: REVISION DATE: SEPT 1994 JOB NUMBER: 94105 19 CEiL. TRANSITION 3 1'-0)) 15 CEILING PERIMETER 3"-iY-o,! 11 SUSPENDED CEILING NOTES WOOD JOiST CSD 16" OC MAX FACE OF WALL 12 GA. SPLAYED SPACE STAPLES 27" OC BRACE WIRE WITH ALONG EACH JOIST 3/8" RIB LATH/� _ 8" MAX. MIN. (4)NTIGHT 1 /2. 1 1/2" #11 GALV NAIL W/ /'� COMPRESSION STRUT, 7/16" DIA HEAD ® 6" OC 12 GA. HANGER WIRE, 5 MIN. (3) TURNS iN 1-1" SEE 12 GA. VERT.� O.C. HANGER WIRE ®40 v 1 1/2" #11 GALV NAIL W/ WITH MIN. (3) TIGHT 7/16 DIA HEAD @ 6" OC TURNS IN 1-1 /2". SLOTTED ANGLE SPACER. W/ 6d RING SHANK NAIL ANGLE SLOTS @ RUNNER ONLY �r r .--rr.--.�rr.--•.-ter.-err rrr �r r. -r r.- I -- r r-.-r.-�rrrrrr.� rr.-r.-•r err rrr.- r .-.--rte.-•.-err-+rr.�rr r.-rrrr rr.-rrrr. r r .-+ .-� r .-� r r r r r .- r r r r r r .-• r r r r .- - 1 1 �7° CT A 7CiDlA/Jfn RUNNER 45 45- .- rr rrrrr rrr r�r - @ 27" OC OVER RIB @ EVERY � rrr rr rrrrrr��------�- JOIST •.-err rrrrrrrrr rrr r-+.--+rrrr rr.-rr.�. - r LAY -IN ACOUSTICAL PANEL 45 45 1/2 , MAX. � MAX. A 1" X 1" WALL ANGLE FASTENED TO EACH STUD LAN WALL STRUCTURE & FINISH, N 11. Ceiling mounted air terminals or services shall be positively attached to the ceiling suspension main runners or to cross runners with the some carrying capacity as the main runner. Air terminals with a nominal dimension of 24" or less shall be positively attached to the ceiling grid runner(s) on at least two opposing sides with one #8 self tapping Tek screw on each side. Each screw shall be located in the center of the air terminal and shall be attached through the bulb of the ceiling grid runner(s). Air terminals in excess of 24" in length shall be attached with two #8 self tapping Tek screws on each end of diffuser attached to the bulb of the ceiling grid runner(s). All attachments shall be capable of laterally supporting the weight of the air terminal. All air terminals regardless of weight or size shall have interlocking ceiling grid runner(s) on all 4 sides of the air terminal. 12. Flush or recessed light fixtures and air terminals or services weighing less than 56 pounds may be supported directly on the runners of a heavy duty grid system but, in addition, they must have a minimum of two 12 ga. slack safety wires attached to the fixture at diagonal corners and anchored to the structure above. All 4 ft. x 4 ft. light fixtures must have slack safety wires at each corner. All flush or recessed light fixtures and air terminals or services weighing 56 pounds or more must be independently supported by not less than 4 taut 12 ga. wires each attached to the fixture and to the structure above regardless of the type of ceiling grid system used. The 4 taut 12 ga. wires including their attachment to the structure above may be capable of supporting 4 times the weight of the unit. 13. Support surface mounted light fixtures by at least two positive devices which surround the ceiling runner and which are each supported from the structure above by a 12 ga. wire. Spring clips or clamps that connect only to the runner are not acceptable. Provide additional supports when light fixtures are 8 feet or longer. 14. Support pendant mounted light fixtures directly from the structure above with hanger wires or cables passing through each pendant hanger and capable of supporting 4 times the weight of the fixture. Special details are necessary for this condition at the ceiling grid. 15. Classification of the ceiling grid is heavy duty. components shall comply with the following Schedule: Manufacturer Main Cross ARMSTRONG 7301 7340(1) CHICAGO METALLIC 200 1204(2) DONN CORPORATION DX26 DX424(3) FOOTNOTES: (1) FOR 2 X 2 GRID USE 7324 (2) FOR 2 X 2 GRID USE 1226 (3) FOR 2 X 2 GRID USE DX216 16, Anchors for Wall Angles: A, At wood stud wall: 4D common nail @ 16" O.C. B. At metal stud wall: 1 1/8" type "S" Bugle Head drywall screw at 16" O.C. C. At masonry wall: 1/4" dia. x 1 1/2" long Topcon anchor screw © 16" O.C. ICBO No. 3370 NV ItJ: 1. FOR FIXTURE SUPPORT REQ. SEE t3 2. FOR HANGER AND SPLAY WERE MAIN RUNNER, ATTACHMENTS TO STRUCTURE STRONGHOLD STAPLES, 9 GAGENOTES: 2" MAX. FROM ® 4" O.C. SEE f4 (ZINC PLATED) 1. NAILS AT ENDS OF HORIZONTAL STRUTS BRACE WIRES ARE TO BE PLACED WITH NAIL HEAD TOWARD TO CROSS CENTERLINE OF SPAN STRUT RUNNERS. CROSS RUNNER 1/2" SECTION - " F1LE/CSI NUMBER: MTBO63 REVISION DATE: JOB NUMBER: 24 HORIZONTAL LATH ATTACHMENT FiLE/CSI NUMBER: REVISION DATE: N.T.S.1A* CEILING PERMETIER JOB NUMBER: FILE/CSI NUMBER: 3)1=11_01) 112 GRID LAYO _ I I NO SCALE I a PERIMETER STARTER WALLS, SEE n 4 EA. 12 GA. SPLAY WIRES ® 12' O.C. MAX. MAX 6' FROM WALLS, SEE (D COMPRESSION STRUT AT 12'-0" O.C. MAX. (8" MAX. FROM END OF RUNNER). SEE "V° STRUT, SEE SEE 1s OPPOSITE FREE WALLS, SEE e Virginia Dare Tower 10470 Foothill Blvd. Rancho Cucomongo California 91730-3754 tel: 909 987 0909 fax: 909 980 9980 APPROVED APPROVED � If fr f LA WOLFF f 84 Q n DIE/31 /00 .`lf'tJtt r9T 1 , . m , ® Oki AIT,r-11 i • SUSPENDED CEILING NOTES AND DTAILS ® 2 —0 O.C. DRAWN RG/AM CHECKED REVISION DATE: SEPT 1994 JOB NUMBER: 94105 FILE/CSI NUMBER: A24-02 REVISiON DATE: SEPT 1994 JOB NUMBER: 94105 DATE oiI.JMn iwA=2o3 3�4,1_1T 12,>=1 -o 4 crA�E AS ! CTECUT J-031 8 iNG DEI 1Jnlz Ain nod -7