ASTM D5764-1997a(2007) 木和木制品的榫支承强度评估用标准试验方法

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【英文标准名称】:StandardTestMethodforEvaluatingDowel-BearingStrengthofWoodandWood-BasedProducts
【原文标准名称】:木和木制品的榫支承强度评估用标准试验方法
【标准号】:ASTMD5764-1997a(2007)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:D07.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:应用;支承强度;电容性负载;测试;试验;木材接头;木材;木制品;木质板材
【英文主题词】:dowel-bearingstrength;wood-base
【摘要】:Thelocalizedcrushingbehaviorofwoodorwood-baseproductsbeneathafastenerwherethefastenerdoesnotbendprovidesamaterialpropertythatisusedintheoreticalmodelsforconnectionswherecrushingorfastenerbending,orboth,occur.Thesetheoreticalmodelsareusedtoestablishdesignvaluesforwoodandwood-baseconnections.Thetestsareappropriatewhenstudyingtheeffectsofsuchvariablesasfastenerdiameter,fastenerholesize,moisturecontent,specificgravity,andgraindirectiononthedowel-bearingstrength.1.1Thistestmethodprovidesthebasicprocedureforevaluatingdowel-bearingstrengthofwoodandwood-basedproducts.Thebearingtestresultsareusedtodeterminethestaticloadresistanceanddeformationcharacteristicsofconnectionsinwoodandwood-baseproductsresultingfromtheapplicationofaloadtransmittedbyafastenerinsertedintoapredrilledhole,ordrivenwithoutdrilling.Methodsaregivenforpreparingspecimenswithpredrilledholeslargerthanthefastenerdiameterandspecimenswithholesproducedbyinsertingfastenersinholessmallerthanthefastenerdiameter.Themethodsapplytofastenerssuchasdowels,bolts,nails,spikes,driftpins,screws,lagscrews,andstaples.1.2Thistestmethodalsoprovidesthebasisfordeterminingthecompressionbehaviorofwoodproductsbeneathalaterallyloadedfastenerwherethethicknessoftheproductandthediameterofthefasteneraresuchthatminimalbendingofthefasteneroccursduringtesting.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B69
【国际标准分类号】:19_060;79_020
【页数】:5P.;A4
【正文语种】: