【英文标准名称】:StandardPracticeforEstablishingCharacteristicValuesforReinforcedGluedLaminatedTimber(Glulam)BeamsUsingMechanics-BasedModels
【原文标准名称】:用基于力学模式的增强胶合层压木材(胶合层木)梁建立特性值的标准实施规程
【标准号】:ASTMD7199-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D07.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:附加试验;调节;梁;弯曲;压缩;设计;耐久性;持续时间;弹性的;环境;胶合的;颗粒;层压的;负荷;力学;方法学;最低要求;模型;预应力的;性能;增强的;加固;安全;适用性;剪切;抗剪钢筋;国际单位制;SI单位;静荷载;硬挺度;强度性能;抗拉荷载;试验要求;测试;木料;值
【英文主题词】:
【摘要】:1.1Thispracticecoversmechanics-basedrequirementsforcalculatingcharacteristicvaluesforthestrengthandstiffnessofreinforcedstructuralgluedlaminatedtimbers(glulam)manufacturedinaccordancewithapplicableprovisionsofANSI/AITCA190.1,subjectedtoquasi-staticloadings.Itaddressesmethodstoobtainbendingpropertiesparalleltograin,aboutthex-xaxis(FbxandEx)forhorizontally-laminatedreinforcedglulambeams.Secondarypropertiessuchasbendingaboutthey-yaxis(Fby),shearparalleltograin(FvxandFvy),tensionparalleltograin(Ft),compressionparalleltograin(Fc),andcompressionperpendiculartograin(Fc)arebeyondthescopeofthispractice.Whendeterminationofsecondarypropertiesisdeemednecessary,testingaccordingtootherapplicablemethods,suchasTestMethodsD143,D198oranalysisinaccordancewithPracticeD3737,isrequiredtoestablishthesesecondaryproperties.Reinforcedglulambeamssubjectedtoaxialloadsareoutsidethescopeofthisstandard.Thispracticealsoprovidesminimumtestrequirementstovalidatethemechanics-basedmodel.1.2Thepracticealsodescribesaminimumsetofperformance-baseddurabilitytestrequirementsforreinforcedglulams,asspecifiedin.Additionaldurabilitytestrequirementsshallbeconsideredinaccordancewiththespecificend-useenvironment.providesanexampleofamechanics-basedmethodologythatsatisfiestherequirementssetforthinthisstandard.1.3Characteristicstrengthandelasticpropertiesobtainedusingthisstandardmaybeusedasabasisfordevelopingdesignvalues.However,thepropersafety,serviceabilityandadjustmentfactorsincludingdurationofload,tobeusedindesignareoutsidethescopeofthisstandard.1.4Thispracticedoesnotcoverunbondedreinforcement,prestressedreinforcement,norshearreinforcement.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.ThemechanicsbasedmodelmaybedevelopedusingSIorin.-lbunits.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B70
【国际标准分类号】:79_060_99
【页数】:11P.;A4
【正文语种】:


Product Code:SAE AS1012
Title:Fitting End; Attachable, Swivel Female 37° Machined Flare, Flexible Metal Hose - Straight, 45° Elbow and 90° Elbow Styles
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.