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【英文标准名称】:StandardTestMethodsforEnd-JointsinStructuralWoodProducts
【原文标准名称】:建筑用木料产品中的端接件的标准试验方法
【标准号】:ASTMD7469-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:cyclicdelamination;end-joint;fingerjoint;lumber;mechanicalproperties;proofloading;scarfjoint;strength;Adhesive-bondedjoints;Adhesivejoints;Delamination--adhesives;End-joints;Finger-jointedlumber;In-serviceevaluation/monitoring;Woodp
【摘要】:Thesetestmethodsareapplicabletospecimenswithorwithoutspecificconditioningregimens.Testsarepermittedtobeperformedonspecimensthatarenotatmoistureequilibrium,suchasunderproductionconditionsinaplant,oronspecimensthathavebeenconditionedtospecifiedmoisturecontentordurabilityconditioningpriortotesting.Thesetestmethodscanbeusedasfollows:Tostandardizethedeterminationofstrengthpropertiesforthematerialandjointbeingtested.Toinvestigatetheeffectofparametersthatmayinfluencethestructuralcapacityofthejoint,suchasjointprofile,adhesivetype,moisturecontent,temperature,andstrength-reducingcharacteristicsintheassembly.Thesetestmethodsdonotintendtoaddressallpossibleexposureorperformanceexpectationsofend-joints.Thefollowingaresomeperformancecharacteristicsnotconsidered:Long-termstrengthandpermanenceofthewoodadhesive.Timedependentmechanicalpropertiesofthejoint.Elevatedtemperatureperformanceofthejoint.1.1Thisstandardprovidestestmethodsforevaluatingthestructuralcapacityandintegrityofend-jointsinstructuralwoodproducts.1.2End-jointsaremanufacturedbyadhesivebondingofmachined,matedsurfacesattheendsoftwopiecesoflumbertoformajoint.Typicalend-jointconfigurationsincludefingerjointsandscarfjoints.Thecombinationofoneormoreend-jointsandtheadjoiningsectionsofthestructuralwoodproductwithintheassemblyisconsideredtobethetestspecimen.1.3Off-linetestmethodsinclude:(1)AxialTension,(2)Bending,and(3)CyclicDelamination.1.4In-linetestmethodsinclude:(1)TensionProofloadand(2)BendingProofload.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.5.1Thistestmethodprovidesproceduresforthedeterminationoftheaxialtensilecapacityoffull-sizeend-jointspecimenoff-line.5.2Applicationsofthistestmethodinclude:end-jointqualificationanddailyqualitycontrolofproduction,andotherpurposeswherethestrengthofafull-sizeend-jointmustbeverifiedordetermined.10.1Thistestmethodprovidesoff-linetestproceduresforthedeterminationofthecapacityoftheend-jointinbendingonshortspanssubjectedtoa4-pointloading.10.2Applicationsofthistestmethodinclude:end-jointqualificationanddailyqualitycontrol,andotherpurposeswherethestrengthofafull-sizeend-jointaretobeverifiedordetermined.15.1Thistestmethodprovidesproceduresforassessingtheabilityofthebondtoresistseparationafterrepeatedexposuretomoistureanddrying.Thistestmethodisforend-jointsinproductsrequiringevaluationofdurability,andalsoprovidesanindicationoftheoverallconsistencyoftheend-jointmanufacturingprocess.Note98212;ThisisadoptedfromTestMethodsD1101,TestMethodB,forfingerjoints.