716 SE EVERETT MALL WAY ALWAYS SOMETHING THRIFT SHOP 2022-03-11

Manger (Suspension) Wires (figurv6 Su and 5b) • Hanger and perimeter wires must be plumb within 1 in 6 unless (figure 5a) counter sloping wires are provided (figure 5b). Source: ASTM C W8 3eCtlotl V.1.4 • Hanger wires shall be 12 gage and spaced 4 feet on center or 10 gage spaced 5 feet on center. Source; ASTM c 036 • Any connection device at the supporting construction shall be capable of car- rying not less than 100 pounds. source: CISCA zorr„ 3-4 • PowderLdriven shot -in anchors (PAFs) are an approved method of attachment for hanger wires. ^ou,Cr.: St:ttr. or Oregon, t3ulldleg Codrr. Olvi%ion • Terminal ends of each main beam and cross tee must be supported within 8 inches of each wall with a perimeter wire (see figure 4 & 5 b). Smircr: CISCA nxtr..:1�1 • Wires shall not attach to or bend around interfering material or equipment. A trapeze or equivalent device shall be used where obstructions preclude direct suspension. Trapeze suspensions shall be a minimum of back-to-back 1'/4 inch cold -rolled channels for spans exceeding 48 inches. Sowcc: CISCA /onto 3-4 Electrical fixtures • bight fixtures weighing less than 10 pounds shall have one 12 gage hanger wire connected from the fixture to the structure above. This wire may be slack. term: C63CA Sci.-,uric zones 3-4 • Light fixtures weighing more than 10 pounds and less than 56 lbs. shall have two 12 gage wires attached at opposing corners of the light fixture to the structure above. These wires may be slack. Swrcc; CISCA Sorsrttic zones 3.4. • Light Fixtures weighing more than 56 lbs. shall be supported directly from the structure above. Those wires must be taut. Source- CISCA Soi umlc :ones 3.4 • Pendant mounted fixtures shall be directly supported from the structure above using a 9 gage wire or an approved alternate support without using the ceiling suspension system for direct support. source; CISCA Sciomic zones 3-4 • Tandem fixtures may utilize common wires. Mechanical Services • Terminals or services weighing 20 Ibs. but not more than 56 lbs. must have two 12 gage wires connecting them to the ceiling system hangers or the structure above. These wires may be slack. solYce: C!.^,CA Sgi,mir 7onoL 3-4 • Terminals or senrlcft weighing more than 56 fibs. must be independently supported directly from the structure above. These wires must be taut, Source; CISCA Seismic Lone* 3-4 SeiStnio Separation Joints Viguro 7) • For telling areas exceeding 2.600 square feet, a seismic separation joint or full height wall partition that breaks the ceiling shall be provided unless analyses are performed of the ceilings bracing system, closure angles and penetrations to provide sufficient clearance. source: ASCE 7-05 mertion Section 13_S.li.2.2 d • The layout and location of the seismic separation joint shall be per the design- er of record and noted on the plans. H a seismic separation joint Is required by the designer, the designer may use the generic joint detailed in this document or a proprietary joint The amount of free movement (gap design) shall be a minimum of 44 inch. sourer.; Stato of Oregon. Bwitlrng code.,!; Division • In lieu of seismic separation joints, the ceiling may be divided into areas less than 2500 square feet by the use of partitions or soffits as follows: partitions shall extend a minimum of 6 Inches above the Level of the plane of the grid and shall be independently braced to the structure above. Soffits shall extend to a point at least level with the bottom plane of the grid and shall be independently supported and laterally braced to the structure above. source st:,tr. p• orlon Building Codes Division • Other than partitions and soffits, seismic joints may not be used as pan of a fire rated ceiling assembly unless substantiating. documentation is provided. .niourdr: Stato of Orogon Building CsSdra Dlviolon Sprinklers For ceilings without rigid bracing. sprinkler head penetrations shall have a 2 inch oversize ring, sleeve or adapter through the ceiling file to allow free movement of at least 1 inch in all horizontal directions. Flexible head design that can accommodate 1 inch free movement shall be permitted as an alternate. Sourco: ASCE i-os f:r. s.6.a.P o figure 5b Counteralloping. flqure 6a Vw nl h•np•r wlr• •ir mol•n•nt Shot -In anchor .-............._.....,..__...._..__ Strue4,m1 concrete -..,...,,,.I Coifing cilp -- —.� S/u -- Max. 3 turns .__�.�..._...__............. •. VArti(W hwpur wire -.•.....-- Nguro 6b so" -i-we tar•rinp �n aR•oltn•fR drill-InAkpw)e5ori.v,rhor tf;; WIN Structural eoArryty Stuel elrap t' widn x P1 long x 1 12 ljaer. minimum 3 tvrng _____..__..—_._._............. ' �. f3010Yr.O ;rplaml c bracing Wite ---�' f/gure 7 i I � Mangoyrs ._J Rlyat Pop 0Z00/bT00 1A NUN IMWE:rT WALL K C910NQ'RUri .4( • SUSPENSION SY,,,,TFMS FOR ACOUSTICAL LAY.IN CFILINa3 X1RJTsa00M1U?x'8u?ass ZTM96C2Z XVd Rd ST: C TTOZ/5T/TT