1、Designation:D505519Standard Specification forEstablishing and Monitoring Structural Capacities ofPrefabricated Wood I-Joists1This standard is issued under the fixed designation D5055;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,th
2、e 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 GeneralThis specification gives procedures forestablishing,monitoring,and reevaluating structural capacitiesof pr
3、efabricated wood I-joists.Capacities considered are shear,reaction,moment,and stiffness.Procedures for establishingcommon details are given and certain design considerationsspecific to wood I-joists are itemized.1.2 Contents of the StandardAn index and brief descrip-tion of the main features of this
4、 specification are given inX2.1.1.1.3 Development of the StandardThe development andintent of this specification is discussed in Appendix X2.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provid
5、ed for information onlyand are not considered standard.1.5This 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 app
6、licability of regulatory limitations prior to use.Aspecific precautionary statement is given in 6.1.1.5.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internat
7、ional Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D198 Test Methods of Static Tests of Lumber in StructuralSizesD245 Practice for Establishing Structural Grades and Re-lated Allowable
8、Properties for Visually Graded LumberD1990 Practice for Establishing Allowable Properties forVisually-Graded Dimension Lumber from In-Grade Testsof Full-Size SpecimensD2559 Specification for Adhesives for Bonded StructuralWood Products for Use Under Exterior Exposure Condi-tionsD2915 Practice for Sa
9、mpling and Data-Analysis for Struc-tural Wood and Wood-Based ProductsD4761 Test Methods for Mechanical Properties of Lumberand Wood-Based Structural MaterialsD5456 Specification for Evaluation of Structural CompositeLumber ProductsD5457 Specification for Computing Reference Resistance ofWood-Based M
10、aterials and Structural Connections forLoad and Resistance Factor DesignD7247 Test Method for Evaluating the Shear Strength ofAdhesive Bonds in Laminated Wood Products at ElevatedTemperaturesD7480 Guide for Evaluating the Attributes of a ForestManagement PlanE4 Practices for Force Verification of Te
11、sting MachinesE529 Guide for Conducting Flexural Tests on Beams andGirders for Building ConstructionE699 Specification forAgencies Involved in Testing,QualityAssurance,and Evaluating of Manufactured BuildingComponentsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units(SI):The Modern
12、 Metric System2.2 U.S.Product Standards:3PS-1 Structural PlywoodPS-2 Performance Standard for Wood-Based Structural-UsePanelsPS-20 American Softwood Lumber Standard1This specification is under the jurisdiction of ASTM Committee D07 on Woodand is the direct responsibility of Subcommittee D07.02 on Lu
13、mber and EngineeredWood Products.Current edition approved March 1,2019.Published May 2019.Originallyapproved in 1990.Last previous edition approved in 2016 as D505516 DOI:10.1520/D5055-19.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceast
14、m.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from APAThe Engineered Wood Association,7011 South 19thStreet,Tacoma,WA 98466,http:/www.apawood.org;and TECO,2902 Terra Court,Sun Prairie,WI 53590,http:/.Copyright AST
15、M 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
16、,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 2.3 Other Standards:CSA O86 Engineering Design in Wood4CSA Standards for Wood Adhesives O112 Series4CSA O121 Douglas-fir Plywood4CSA O141 Softwood Lumber4CSA O151 Canadian Softwood Plywood4CSA O325 Construction Sheathing4CSA O437.0 OSB and Waferboard4Lumber Grading Rules Approved by American LumberStandards Committee(ALSC)or Canadian Lumber Stan-dards Accreditation Board(CLSAB)5SPS-1 Fi
