ASTM_D_7147_-_21.pdf

Designation:D714721Standard 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 UnitsThe values stated in inch-pound units are to beregarded as standard.The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.5 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.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 SpecimensC90 Specification for Loadbearing Concrete Masonry UnitsC270 Specification for Mortar for Unit MasonryC1314 Test Method for Compressive Strength of MasonryPrismsD245 Practice for Establishing Structural Grades and Re-lated Allowable Properties for Visually Graded LumberD9 Terminology Relating to Wood and Wood-Based Prod-uctsD1038 Terminology Relating to Veneer,Plywood,and WoodStructural PanelsD1761 Test Methods for Mechanical Fasteners in Wood andWood-Based MaterialsD2395 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/E8M Test Methods for Tension Testing of Metallic Ma-terialsE575 Practice for Reporting Data from Structural Tests ofBuilding Constructions,Elements,Connections,and As-sembliesF606/F606M Test Methods for Determining the MechanicalPropertiesofExternallyandInternally ThreadedFasteners,Washers,Direct Tension Indicators,and RivetsF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance InspectionF1575 Test Method for Determining Bending Yield Momentof Nails1This 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 July 1,2021.Published August 2021.Last previousedition approved in 2018 as D7147 11(2018).DOI:10.1520/D7147-21.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.2.2 Other Standards:AWC NDS National Design Specification for Wood Con-struction3AISI S100 North American Specification for the Design ofCold-Formed Steel Structural Members4ANSI/AISC 360 Specification for Structural Steel Build-ings5ANSI/ASME B18.2.1 Square,Hex,Heavy Hex,an