1、Designation: C 754 04Standard Specification forInstallation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products1This standard is issued under the fixed designation C 754; the number immediately following the designation indicates the year oforiginal adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specifica
3、tion covers the minimum requirements forthe installation of interior nonstructural steel framing andfurring members designed to receive screw-attached gypsumpanel products. The steel framing and furring members cov-ered in this specification are limited to those complying withSpecification C 645.1.2
4、 Details of construction for a specific assembly toachieve the required fire resistance shall be obtained fromreports of fire-resistance tests, engineering evaluations, orlistings from recognized fire testing laboratories.1.3 The values stated in inch-pound units are to be regardedas the standard. T
5、he SI (metric) values given in parentheses areapproximate and are provided for information purposes only.2. Referenced Documents2.1 ASTM Standards:2A 366/A 366M Specification for Commercial Steel (CS),Sheet, Carbon, (0.15 Maximum Percent) Cold-RolledA 641/A 641M Specification for Zinc-Coated (Galvan
6、ized)Carbon Steel WireA 653/A 653M Specification for Steel Sheet, Zinc-Coated(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)by the Hot-Dip ProcessC 11 Terminology Relating to Gypsum and Related Build-ing Materials and SystemsC 645 Specification for Non-Load Bearing (Axial) SteelStuds, Runners,
7、 (Tracks), and Rigid Furring Channels forScrew Application of Gypsum Board3. Terminology3.1 DefinitionsTerms shall be as defined in TerminologyC11.3.2 Descriptions of Terms Specific to This Standard:3.2.1 channel, nthe material described in 4.3 to whichfurring members are attached.3.2.2 cross furrin
8、g, nfurring member attached perpen-dicular to main runners or framing members.3.2.3 cross furring member, na member installed perpen-dicularly to the main beams designed to receive screw attachedgypsum panel products.3.2.4 direct furring, nfurring members attached directlyto the structural members o
9、f the building.3.2.5 framing member, nmetal studs, runners (track), andrigid furring channels designed to receive screw attachedgypsum panel products.3.2.6 furred ceiling, na ceiling in which the rigid furringchannels and studs are attached directly to the structuralmembers of the building.3.2.7 fur
10、ring, vpreparing a wall or ceiling with framing orfurring members to provide a level surface or airspace.3.2.8 furring member, nmetal studs, rigid furring chan-nels, or channels used either as direct furring or as crossfurring.3.2.9 grid suspension system, na ceiling system com-posed of modular inte
11、rlocking steel components designed toreceive screw-attached gypsum panel products.3.2.10 main beam, nthe main support member of a gridsuspension system that receives cross furring members.3.2.11 main runner, nthe channel or stud that is attachedto or suspended from the structural members of the buil
12、ding.3.2.12 runner (track), na member designed to receive theends of metal studs, attached directly to the structural membersof the building.3.2.13 suspended ceiling, na ceiling in which the mainrunners and cross furring are suspended below the structuralmembers of the building.1This specification i
13、s under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is the direct responsibilityof Subcommittee C11.03 on Specifications for Application of Gypsum and OtherProducts in Assemblies.Current edition approved July 1, 2004. Published July 2004. Originally
14、 approvedin 1974. Last previous edition approved in 2000 as C 754 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM
15、website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Materials and Manufacture4.1 Studs, Runners, Rigid Furring Channels, and GridSuspension Systemssee Specifica
16、tion C 645.4.2 Tie Wire and Hanger WireZinc-coated (galvanized)soft-annealed steel, or of a material and size having equivalentcorrosion resistance and strength. Wire diameters (uncoated)specified herein correspond with United States steel wire gagenumbers as follows:DiameterAWire Gage(U.S. Steel Wi
17、re Gage)in. mm0.0348 0.88 No. 200.0410 1.04 No. 190.0475 1.21 No. 180.0540 1.37 No. 170.0625 1.59 No. 160.0800 2.03 No. 140.0915 2.32 No. 130.1055 2.68 No. 120.1205 3.06 No. 110.1350 3.43 No. 100.1483 3.77 No. 90.1620 4.12 No. 8AAllowable variations in diameter shall be in accordance with tolerances
18、 asestablished in A 641/A 641M.4.3 ChannelsChannels shall be cold-formed from steelwith a minimum 33 000 psi (228 MPa) yield strength and0.0538 in. (1.37 mm) minimum bare steel thickness. Channelsshall have a protective coating conforming to SpecificationA 653/A 653G 40 or shall have a protective co
19、ating with anequivalent corrosion resistance, and shall have the followingminimum weights in lb per 1000 linear ft (kg/m):Size Weight Flange Widthin. (mm) lb/1000 ft (kg/m) in. (mm)34 (19) 277 (0.412)12 (13)112 (38) 414 (0.616)12 (13)2 (51) 506 (0.753)12 (13)212 (64) 597 (0.888)12 (13)4.4 Grid Suspe
20、nsion System:4.4.1 Main BeamFormed from cold-rolled steel “T” sec-tions, indexed with slots to receive ends of cross furringmembers, and with stamped couplings at each end for thepurpose of splicing.4.4.2 Cross Furring MembersFormed from cold-rolledsteel, designed to permit screw attachment of gypsu
21、m panelproducts, and formed with an end configuration that permitsmechanical interlock with the indexed slots of the main beam.4.5 Rod and Flat HangersFormed from steel conformingto Specification A 366/A 366M. When specified, rod and flathangers shall be protected with zinc coating or another equall
22、yrust-inhibiting coating.5. Installation of Metal Framing5.1 Tolerances:5.1.1 Spacing of studs and furring members shall be notmore than 618 in. (3 mm) from the spacing shown in Tables 1and 2. Any cumulative error shall be not more than 618 in.TABLE 1 Maximum Framing SpacingNOTE 1Where a conflict ex
23、ists in spacing between base and face layers, the closer spacing shall govern.Gypsum Panel Product ThicknessLocation ApplicationMaximum Spacing, ocBase Layer,in. (mm)Face Layer,in. (mm)One Layer Only,in. (mm)Two LayersFasteners Only,in. (mm)Adhesive BetweenLayers, in. (mm)38 (9.5) . . . ceilings per
24、pendicular 16 (406)A16 (406)A16 (406)A38 (9.5) ceilings perpendicular NA 16 (406) 16 (406)38 (9.5) ceilings parallel NA NR 16 (406)12 (12.7) . . . ceilings perpendicular 24 (610)A24 (610)A24 (610)A. . . ceilings parallel 16 (406)A16 (406)A16 (406)A38 (9.5) ceilings perpendicular NA 16 (406) 24 (610)
25、38 (9.5) ceilings parallel NA NR 24 (610)12 (12.7) ceilings perpendicular NA 24 (610) 24 (610)12 (12.7) ceilings parallel NA 16 (406) 24 (610)58 (15.9) . . . ceilings perpendicular 24 (610)A24 (610)A24 (610)A. . . ceilings parallel 16 (406)A16 (406)A16 (406)A38 (9.5) ceilings perpendicular NA 16 (40
26、6) 24 (406)38 (9.5) ceilings parallel NA NR 24 (610)12 or58 (12.7 or 15.9) ceilings perpendicular NA 24 (610) 24 (610)12 or58 (12.7 or 15.9) ceilings parallel NA 16 (406) 24 (406)14 (6.4) . . . walls parallel NR 16 (406)A16 (406)A38 (9.5) walls NR NR NR NR12 or58 (12.7 or 15.9) walls perpendicular o
27、r parallel NA 16 (406) 16 (406)38 (9.5) . . . walls perpendicular or parallel 16 (406)A16 (406)A24 (610)A38 or12 or58 (9.5 or12.7 or 15.9)walls perpendicular or parallel NA 16 (406) 24 (610)12 or58 (12.7 or15.9). . . walls perpendicular or parallel 24 (610)A24 (610)A24 (610)A38 or12 or58 (9.5 or12.7
28、 or 15.9)walls perpendicular or parallel NA 24 (610) 24 (610)Perpendicularperpendicular to framing membersParallelparallel to framing membersNAnot applicableNRnot recommendedocon centerADenotes framing spacing for base layer in two-layer application.C7540425.2 Runner (Track) Installation:5.2.1 Gener
29、alRunners shall be aligned accurately at thefloor and ceiling and securely anchored approximately 2 in. (50mm) from the runner ends, not more than 24 in. (610 mm) oncenter. Runners shall be secured with fasteners at partitioncorners. One runner shall extend to the end of the corner andthe other runn
30、er shall butt to it and be gapped to allowclearance for the gypsum panel product thickness. Runnersshall not be mitered.5.2.2 Runners to Concrete SlabsShall be fastened withconcrete stub nails, expansion anchors, shielded screws, orpower-driven fasteners not exceeding 24 in. (610 mm) oncenter.5.2.3
31、Runners to WoodShall be fastened with screwsproviding not less than 1 in. (25 mm) penetration or nailsproviding 112 in. (38 mm) penetration into the wood.5.2.4 Runners to Suspended CeilingsShall be fastenedwith “Molly”-type expandable fasteners, toggle bolts, clamps,or screws into channels, splines,
32、 “T” runners, or other mem-bers.5.3 Stud Installation:5.3.1 Stud Height and Spacing Limitations:5.3.1.1 Maximum framing spacing determined by gypsumpanel product thickness shall be in accordance with Table 1.5.3.1.2 Stud heights shall be not greater than those shown inTables 3-5.5.3.1.3 Studs shall
33、engage both the floor and ceiling run-ners. The gap between the end of a stud and the web of the topand bottom runner shall be not more than14 in. (6 mm).5.3.1.4 Where conditions require that a partition be con-structed with compensation for vertical structural movement,the gap between the end of a
34、stud and the adjacent runner shallbe designed by an architect or engineer.5.3.2 Location:TABLE 2 Spans and Spacings of Horizontal Furring MembersType of FurringMaximumASpacingctoc,Bin. (mm)Maximum Span,ft (mm)Rigid Furring Channel 24 (610) 4 (1220)158 in. (41 mm) stud(erected withopen side up and ag
35、ainstsupport)24 (610) 5 (1520)212 in. (64 mm) stud(erected withweb vertical to support)C24 (610) 6 (1830)358 in. (92 mm) stud(erected withweb vertical to support)C24 (610) 8 (2440)AConsult Table 1 for maximum spacing as determined by gypsum panel productthickness.Bc to ccenter to centerCA 6 in. (150
36、 mm) length of same size stud or track shall be nested to form a“box” at each saddle tie.TABLE 3 Maximum Stud Height,Aft-in. (mm), Single Layer12-in. (12.7-mm) Thick Gypsum BoardBon Each Side of Minimum 0.0179-in.(0.455-mm) Base Metal Thickness Steel Studs Spaced 12-in. (305-mm), 16-in. (406-mm), an
37、d 24-in. (610-mm) o.c.CStud Depth, in.(mm), IndustryDesignatorDDeflectionLimitMaximum Stud Heightft-in. (mm)Framing Spaced12 in. (305 mm) o.c.Framing Spaced16 in. (406 mm) o.c.Framing Spaced24 in. (610 mm) o.c.Lateral Pressure Lateral Pressure Lateral Pressure5 psf(240 Pa)7.5 psf(360 Pa)10 psf(480 P
38、a)5 psf(240 Pa)7.5 psf(360 Pa)10 psf(480 Pa)5 psf(240 Pa)7.5 psf(360 Pa)10 psf(480 Pa)1-58 (41.3)162S125-18L/120 11-2 (3400) 9-9 (2970) 8-10 (2690) 10-7 (3230) 8-10 (2690) 8-4 (2540) 9-9 (2970) 8-0 (2440)EL/240 8-10 (2690)EE8-4 (2540)EE7-11 (2410)EEL/360EEEEEEEEE2-12 (63.5)250S125-18L/120 15-1 (4600
39、) 12-4 (3760) 10-9 (3280) 13-3 (4040) 10-10 (3300) 9-5 (2870) 11-10 (3610) 9-8 (2950) 8-5 (2570)L/240 11-11 (3630) 10-5 (3180) 9-6 (2900) 11-3 (3430) 9-10 (3000) 8-11 (2720) 10-7 (3230) 9-3 (2820) 8-5 (2570)L/360 10-5 (3180) 9-1 (2770)E9-10 (3000) 8-7 (2620)E9-3 (2820) 8-1 (2460)E3-12 (88.9)F350S125
40、-18L/120 17-8 (5380) 14-3 (4340) 12-5 (3780) 15-4 (4670) 12-5 (3780) 10-9 (3280) 13-9 (4190) 11-0 (3350) 9-5 (2870)L/240 15-4 (4670) 13-3 (4040) 12-0 (3660) 14-4 (4370) 12-5 (3780) 10-9 (3280) 13-5 (4090) 11-0 (3350) 9-5 (2870)L/360 13-3 (4040) 11-7 (3530) 10-5 (3180) 12-4 (3760) 10-10 (3300) 9-9 (2
41、970) 11-7 (3530) 10-1 (3070) 9-1 (2770)4 (101.6)400S125-18L/120 19-6 (5940) 15-9 (4800) 13-8 (4170) 17-2 (5230) 13-10 (4220) 11-11 (3630) 15-1 (4600) 12-1 (3680) 10-5 (3180)L/240 16-5 (5000) 14-4 (4370) 13-0 (3960) 15-4 (4670) 13-4 (4060) 11-11 (3630) 14-2 (4320) 12-1 (3680) 10-5 (3180)L/360 14-4 (4
42、370) 12-6 (3810) 11-4 (3450) 13-4 (4060) 11-8 (3560) 10-6 (3200) 12-4 (3760) 10-9 (3280) 9-9 (2970)6 (152.4)600S125-18L/120 22-10 (6960) 18-7 (5660) 16-2 (4930) 19-9 (6020) 16-2 (4930) 14-0 (4270) 16-9 (5110) 13-5 (4090) 11-5 (3480)L/240 22-1 (6730) 18-7 (5660) 16-2 (4930) 19-9 (6020) 16-2 (4930) 14
43、-0 (4270) 16-9 (5110) 13-5 (4090) 11-5 (3480)L/360 19-4 (5890) 16-9 (5110) 15-0 (4570) 17-11 (5460) 15-7 (4750) 13-10 (4220) 16-9 (5110) 13-5 (4090) 11-5 (3480)ABased on tests conducted with gypsum board attached with screws spaced 12 in. (305 mm) o.c. to framing members.BMaximum stud heights are al
44、so applicable to walls sheathed with gypsum board greater than12 in. (12.7 mm) thick and multiple layers of gypsum board.CRunner flanges need not be fastened to studs except as required by 5.3.2.1.DThe Industry Designator defines the cold formed steel framing member.Example: 350S125-18:350 designate
45、s the member web depth in 100ths of an in., 350 = 3.50 in. (88.9 mm).S designates the type of member, S = stud.125 designates the member flange width in 100ths of an in., 125 = 1.25 in. (32 mm).18 designates the member base metal thickness in mils, 18 = .0179 in. (0.455 mm).EData not available.FAlso
46、 applicable to 3-58 in. (92.1 mm) stud depth, 362S125-18.C7540435.3.2.1 Studs shall be positioned vertically and shall bespaced not more than the maximum framing spacing allowedfor the finish specified. Studs located adjacent to door andwindow frames, partition intersections, and corners shall beanc
47、hored to runner flanges by screws, or by crimping at eachstud and runner flange.5.3.2.2 At the junction of through and abutting partitions, astud shall be located not more than 2 in. (50 mm) away fromthe intersection in the abutting partition from the throughpartition (see Fig. 1), and not more than
48、 2 in. (50 mm) frompartition corners and other construction. A stud shall be locatedadjacent to all door and borrowed light frames. Studs shall besecurely anchored to the jamb anchor clips on each door frameor borrowed light frame by bolt or screw attachment. A headershall be formed over metal door
49、and borrowed light frameswith a cut-to-length section of runner placed horizontally withthe flanges cut and web bent vertically at each end, andsecurely attached to the adjacent vertical studs. A cut-to-lengthstud shall be positioned at the location of vertical joints overthe header extending to the ceiling runner. Additional cut tolength studs required to comply with framing spacing inaccordance with Table 1 shall also be added over the header,extending to the ceiling runner.5.3.2.3 At partition corners,
