ASTM C645-2014e1 Standard Specification for Nonstructural Steel Framing Members《非结构性钢框架构件的标准规格》.pdf
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1、Designation: C645 141Standard Specification forNonstructural Steel Framing Members1This standard is issued under the fixed designation C645; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in par
2、entheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1NOTEFig. 2 was revised editorially to remove an unnecessary asterisk in D
3、ec. 2015.1. Scope*1.1 This specification covers nonstructural steel framingmembers in interior construction assemblies.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information on
4、lyand are not considered standard.1.3 The following safety hazards caveat pertains only to thetest methods portion, Sections 9 and 10, of this specification:This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of th
5、is standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A653/A653M Specification for Steel Sheet, Zinc-Coated(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)by the Hot-Dip Pr
6、ocessA1003/A1003M Specification for Steel Sheet, Carbon,Metallic- and Nonmetallic-Coated for Cold-FormedFraming MembersC11 Terminology Relating to Gypsum and Related BuildingMaterials and SystemsC475/C475M Specification for Joint Compound and JointTape for Finishing Gypsum BoardC754 Specification fo
7、r Installation of Steel Framing Mem-bers to Receive Screw-Attached Gypsum Panel ProductsC1002 Specification for Steel Self-Piercing Tapping Screwsfor Application of Gypsum Panel Products or MetalPlaster Bases to Wood Studs or Steel StudsC1396/C1396M Specification for Gypsum Board2.2 AISI Standards:3
8、S100 North American Specification for the Design of Cold-Formed Steel Structural Members, 2007 editionS220 North American Standard for Cold-Formed SteelFramingNonstructural Members, 2011 Edition2.3 ICC-ES Document4ICC-ES-AC86 Acceptance Criteria for Cold-formed SteelFraming MembersInterior Nonload-b
9、earing WallAssembliesApproved May 20123. Terminology3.1 DefinitionsDefinitions shall be in accordance withTerminology C11.3.2 Definitions of Terms Specific to This Standard:3.2.1 members, nin screw application of gypsum board,studs, runners (track), hat furring channels, main beams, andcross furring
10、 members of grid suspension systems or otheritems manufactured in accordance with this specification.3.2.2 nonstructural wall stud, na member in a steelframed wall system which is limited to a lateral (transverse)load of not more than 10 lb/ft2(480 Pa), a superimposedvertical load, exclusive of shea
11、thing materials, of not more than100 lbf/ft (1460 N/m), or a superimposed vertical load of notmore than 200 lbs (890 N).4. Materials and Manufacture4.1 Members shall be manufactured from steel meeting therequirements of Specification A1003/A1003M.4.2 Members shall have a protective coating conformin
12、g toSpecification A653/A653M G40 minimum or shall have aprotective coating with an equivalent corrosion resistance.1This specification is under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is the direct responsibilityof Subcommittee C11.02 on Specifi
13、cations and Test Methods for Accessories andRelated Products.Current edition approved Nov. 1, 2014. Published November 2014. Originallyapproved in 1970. Last previous edition approved in 2013 as C645 13. DOI:10.1520/C0645-14E01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or
14、contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Iron and Steel Institute (AISI), 1140 ConnecticutAve., NW, Suite 705, Washington, DC 20036, http:/www.steel.
15、org.4Available from ICC Evaluation Services, Inc., 5360 Workman Mill Road,Whittier, CA 90601, www.icc-es.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.3 Members
16、shall be manufactured from steel having aminimum thickness, individual measurement of 0.0179 in.(0.455 mm), before application of protective coating.5. Dimensions and Permissible Variations5.1 Studs and rigid furring channels shall have a configu-ration and steel thickness such that the system in wh
17、ich theyare used will carry the design transverse loads without exceed-ing either the allowable stress of the steel or the allowabledesign deflection. Main beams and cross furring of gridsuspension systems shall be limited to a deflection of L/240.The manufacturer shall supply sufficient data for ca
18、lculatingdesign performance.NOTE 1Allowable deflection varies depending on the cladding usedand architectural requirements. Detailed requirements shall be specified inapplication specifications.5.1.1 Members, except main beams of grid suspensionsystems, shall be sufficiently rigid to permit penetrat
19、ion of thescrew.5.1.2 Minimum width of face to which gypsum board isscrew-attached shall be not less than 114 in. (32 mm).5.1.3 Minimum lip dimension shall be316 in. (5 mm). (SeeFig. 1.)5.2 Members shall be manufactured within the limits asshown in Table 1 and Fig. 2.5.3 Rigid Furring ChannelsMinimu
20、m depth shall be78 in.(22 mm). Minimum width of furring attachment flanges (seeFig. 3) shall be12 in. (12.7 mm).5.4 Grid suspension systems include main beams and crossfurring members which mechanically interlock to form aFIG. 1 Minimum Drywall Stud Cross SectionTABLE 1 Manufacturing TolerancesDimen
21、sionAItem CheckedDrywall Studs,in. (mm)Drywall Track,in. (mm)A length +18 (3.18)14 (6.35)+ 1 (25.40)14 (6.35)BBweb width +132 (0.79)132 (0.79)+18 (3.18)0(0)C flare +116 (1.59) + 0 (0)overbend 116 (1.59) 316 (4.76)D hole centerwidth+18 (3.18)18 (3.18)NAE hole centerlength+14 (6.35)14 (6.35)NAF crown
22、+18 (3.18)18 (3.18)+18 (3.18)18 (3.18)G camber132 per ft (0.79)12 max (12.7)132 per ft (0.79)12 max (12.7)H bow132 per ft (0.79)12 max (12.7)132 per ft (0.79)12 max (12.7)I twist132 per ft (0.79)12 max (12.7)132 per ft (0.79)12 max (12.7)AAll measurements shall be taken not less than 1 ft (305 mm) f
23、rom the end.BOutside dimension for stud; inside for track.C645 1412modular supporting network. Length tolerance for grid suspen-sion members shall be 6116 in. (1.59 mm).5.5 Runners (track) shall be formed in a U-shapedconfiguration, having web depth compatible with those of thestuds of the same nomi
24、nal size. The runners (track) shall bedesigned such that when the studs are placed in both the topand bottom runners (track), they are held by friction. Minimumheight of flanges shall be 1 in. (25 mm).6. Edges6.1 Members shall be manufactured in such a fashion as tominimize burrs and sharp edges.7.
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