ASTM D198-2009 结构尺寸木料静力试验法

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【英文标准名称】:StandardTestMethodsofStaticTestsofLumberinStructuralSizes
【原文标准名称】:结构尺寸木料静力试验法
【标准号】:ASTMD198-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D07.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compression;flexure;modulusofelasticity;modulusofrupture;shear;shearmodulus;statictest;tension;torsion;woodstructuralmembers;Compressiontesting--wood/woodproducts;Flexuraltesting--woodproducts;Laminates(wood);Lumber;Sheartestin
【摘要】:Theflexuralpropertiesestablishedbythistestmethodprovide:Dataforuseindevelopmentofgradingrulesandspecifications;Dataforuseindevelopmentofworkingstressesforstructuralmembers;Dataontheinfluenceofimperfectionsonmechanicalpropertiesofstructuralmembers;Dataonstrengthpropertiesofdifferentspeciesorgradesinvariousstructuralsizes;Dataforuseincheckingexistingequationsorhypothesesrelatingtothestructuralbehaviorofbeams;Dataontheeffectsofchemicalorenvironmentalconditionsonmechanicalproperties;Dataoneffectsoffabricationvariablessuchasdepth,taper,notches,ortypeofendjointinlaminations;andDataonrelationshipsbetweenmechanicalandphysicalproperties.Proceduresaredescribedhereinsufficientdetailtopermitduplicationindifferentlaboratoriessothatcomparisonsofresultsfromdifferentsourceswillbevalid.Specialcircumstancesmayrequiredeviationfromsomedetailsoftheseprocedures.Anyvariationsshallbecarefullydescribedinthereport(seeSection11).1.1Thesetestmethodscovertheevaluationoflumberinstructuralsizebyvarioustestingprocedures.1.2Thetestmethodsappearinthefollowingorder:
Sections
Flexure
4-11
Compression(ShortColumn)
13-20
Compression(LongMember)
21-28
Tension
29-36
Torsion
37-44
ShearModulus
45-52