ASTM_D_7199_-_20.pdf

Designation:D719920Standard Practice forEstablishing Characteristic Values for Reinforced GluedLaminated Timber(Glulam)Beams Using Mechanics-BasedModels1This standard is issued under the fixed designation D7199;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 practice describes procedures for establishing thecharacteristic values for reinforced structural glued-laminatedtimber(glulam)beams using mechanics-based models andvalidated by full-scale beam tests.Glulam beams shall bemanufactured in accordance with applicable provisions ofANSI A190.1.1.2 This practice also describes a minimum set ofperformance-based durability test requirements for reinforcedglulam beams,as specified in Annex A1.Additional durabilitytest requirements shall be considered in accordance with thespecific end-use environment.Appendix X1 provides an ex-ample of a mechanics-based methodology that satisfies therequirements set forth in this practice.1.3 This practice is limited to procedures for establishingflexural properties(modulus of rupture,MOR,and modulus ofelasticity,MOE)about the x-x axis of horizontally-laminatedreinforced glulam beams.1.4 The establishment of secondary properties,such asbending about the y-y axis,shear parallel to grain,tensionparallel to grain,compression parallel to grain,and compres-sion perpendicular to grain,for the reinforced glulam beamsare beyond the scope of this practice.NOTE1When the establishment of secondary properties is deemednecessary,testing according to other applicable methods,such as TestMethods D143 and D198 or analysis in accordance with Practice D3737,may be considered.1.5 Reinforced glulam beams subjected to axial loads areoutside the scope of this practice.1.6 Proper safety,serviceability,and adjustment factorsincluding duration of load,to be used in design are outside thescope of this practice.1.7 Evaluation of unbonded,prestressed,and shear rein-forcement is outside the scope of this practice.1.8 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 onlyand are not considered standard.The mechanics-based modelshall be permitted to be developed using SI or inch-poundunits.1.9 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.1.10 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:2D9 Terminology Relating to Wood and Wood-Based Prod-uctsD143 Test Methods for Small Clear Specimens of TimberD198 Test Methods of Static Tests of Lumber in StructuralSizesD905 Test Method for Strength Properties of AdhesiveBonds in Shear by Compression LoadingD1990 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-tions1This practice is under the jurisdiction of ASTM Committee D07 on Wood andis the direct responsibility of Subcommittee D07.02 on Lumber and EngineeredWood Products.Current edition approved Aug.1,2020.Published August 2020.Originallyapproved in 2006.Last previous edition approved in 2012 as D7199 07(2012).DOI:10.1520/D7199-20.2For 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.D2915 Practice for Sampling and Data-Analysis for Struc-tural Wood and Wood-Based ProductsD3039/D3039M Test Method for Tensile Properties of Poly-mer Matrix Composite MaterialsD3410/D3410M Test Method for Compressive Properties ofPolymer Matrix Composite Materials with UnsupportedGage Section by Shear LoadingD3737 Practice for Establishing Allow