ASTM_D_7147_-_11.pdf

Designation:D714711Standard Specification forTesting and Establishing Allowable Loads of Joist Hangers1This standard is issued under the fixed designation D7147;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 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers a procedure for evaluatingmetal devices used for wood-to-wood,wood-to-concrete,wood-to-concrete masonry,and wood-to-steel connections.This method is intended for use with devices used to connectjoists,beams,and girders together.These devices are com-monly described as joist hangers.1.2 This specification describes test methods for evaluatingthe capacities of joist hangers subject to vertical and torsionalloading.1.3 This specification provides a method of assigning allow-able loads to joist hangers based on measured strength anddeformation characteristics.Information obtained by the pro-visions of this specification is applicable to design when usingthe Allowable Stress Design method.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C31/C31M Practice for Making and Curing Concrete TestSpecimens in the FieldC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete SpecimensC1314 Test Method for Compressive Strength of MasonryPrismsD9 Terminology Relating to Wood and Wood-Based Prod-uctsD2395 Test Methods for Density and Specific Gravity(Rela-tive Density)of Wood and Wood-Based MaterialsD3737 Practice for Establishing Allowable Properties forStructural Glued Laminated Timber(Glulam)D4442 Test Methods for Direct Moisture Content Measure-ment of Wood and Wood-Based MaterialsD5055 Specification for Establishing and Monitoring Struc-tural Capacities of Prefabricated Wood I-JoistsD5456 Specification for Evaluation of Structural CompositeLumber ProductsD7438 Practice for Field Calibration and Application ofHand-Held Moisture MetersE4 Practices for Force Verification of Testing MachinesE8 Test Methods for Tension Testing of Metallic MaterialsE575 Practice for Reporting Data from Structural Tests ofBuilding Constructions,Elements,Connections,and As-sembliesF606 Test Methods for Determining the Mechanical Proper-ties of Externally and Internally Threaded Fasteners,Washers,and Rivets(Metric)F0606_F0606MF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance InspectionF1575 Test Method for Determining Bending Yield Momentof Nails2.2 Other Standards:ANSI/AF&PA NDS-2005 National Design Specification forWood Construction3North American Specification for the Design of Cold-Formed Steel Structural Members,20074ANSI/AISC 36010 Specification for Structural SteelBuildings,20105ACI 318/318R-08 Building Code Requirements for Struc-tural Concrete and Commentary3.Terminology3.1 The following section defines terms used in this speci-fication.See Terminology D9 for other terminology.3.2 Definitions:3.2.1 headera member supporting a joist hanger.Aheadermay also be referred to as a“supporting”member.1This specification is under the jurisdiction of ASTM Committee D07 on Woodand is the direct responsibility of Subcommittee D07.05 on Wood Assemblies.Current edition approved Oct.1,2011.Published November 2011.Last previousedition approved in 2005 as D714705.DOI:10.1520/D7147-11.2For 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 website.3Available from American Forest and Paper Association(AF&PA),1111 19thSt.,NW,Suite 800,Washington,DC 20036.4Available from American Iron and Steel Institute(AISI),1101 17th St.,NW,Suite 1300,Washington,DC 20036.5Available from American Institute of Steel Construction(AISC),One E.Wacker Dr.,Suite 3100,Chicago,IL 60601-2001.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2 joista bending member supported by a joist hanger.A joist may also be referred to as a“supported”member.3.2.3 joist hangera metal device,usually cold-formedfrom light-gage steel sheet or welded from steel plate,used totransfer loads from a joist to a header member or wall inbuilding construction.Face-mount joist hangers contact theside surface of the header and do not contact the top of theheader.Top-mount hangers are joist hangers that contact theside and top surface of the header.3.2.4 sawn lumbersee definition for lumber in Terminol-ogy D9.3.2.5 structural composite lumber(SCL)see SpecificationD5456.3.2.6