【英文标准名称】:StandardSpecificationforSteelWire,Oil-TemperedforMechanicalSprings
【原文标准名称】:机械弹簧用油回火钢丝标准规范
【标准号】:ASTMA229/A229M-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:淬火的;淬火的冷拔;钢;弹簧;规范(验收);金属线
【英文主题词】:Hardened;Hardenedanddrawn;Specification(approval);Springs;Steels;Wires
【摘要】:
【中国标准分类号】:H49
【国际标准分类号】:77_140_25
【页数】:4P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforDeterminingLoadResistanceofGlassinBuildings
【原文标准名称】:建筑玻璃耐荷载性测定的标准实施规程
【标准号】:ASTME1300-2009a
【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】:E06.51
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:annealedglass;deflection;flatglass;fullytemperedglass;glass;heat-strengthenedglass;insulatingglass;laminatedglass;loadresistance;monolithicglass;probabilityofbreakage;snowload;sodalimesilicate;strength;windload;Loadingtests-
【摘要】:ThispracticeisusedtodeterminetheLRofspecifiedglasstypesandconstructionsexposedtouniformlateralloads.Useofthispracticeassumes:Theglassisfreeofedgedamageandisproperlyglazed,Theglasshasnotbeensubjectedtoabuse,Thesurfaceconditionoftheglassistypicalofglassthathasbeeninserviceforseveralyears,andisweakerthanfreshlymanufacturedglassduetominorabrasionsonexposedsurfaces,Theglassedgesupportsystemissufficientlystifftolimitthelateraldeflectionsofthesupportedglassedgestonomorethan1/175oftheirlengths.Thespecifieddesignloadshallbeusedforthiscalculation.Thecenterofglassdeflectionwillnotresultinlossofedgesupport.Note18212;Thispracticedoesnotaddressaestheticissuescausedbyglassdeflection.Manyotherfactorsshallbeconsideredinglasstypeandthicknessselection.Thesefactorsincludebutarenotlimitedto:thermalstresses,spontaneousbreakageoftemperedglass,theeffectsofwindbornedebris,excessivedeflections,behaviorofglassfragmentsafterbreakage,seismiceffects,heatflow,edgebite,noiseabatement,potentialpost-breakageconsequences,andsoforth.Inaddition,considerationssetforthinbuildingcodesalongwithcriteriapresentedinsafetyglazingstandardsandsitespecificconcernsmaycontroltheultimateglasstypeandthicknessselection.Forsituationsnotspecificallyaddressedinthisstandard,thedesignprofessionalshalluseengineeringanalysisandjudgmenttodeterminetheLRofglassinbuildings.1.1Thispracticedescribesprocedurestodeterminetheloadresistance(LR)ofspecifiedglasstypes,includingcombinationsofglasstypesusedinasealedinsulatingglass(IG)unit,exposedtoauniformlateralloadofshortorlongduration,foraspecifiedprobabilityofbreakage.1.2Thispracticeappliestoverticalandslopedglazinginbuildingsforwhichthespecifieddesignloadsconsistofwindload,snowloadandself-weightwithatotalcombinedmagnitudelessthanorequalto10kPa(210psf).Thispracticeshallnotapplytootherapplicationsincluding,butnotlimitedto,balustrades,glassfloorpanels,aquariums,structuralglassmembers,andglassshelves.1.3Thispracticeappliesonlytomonolithic,laminated,orinsulatingglassconstructionsofrectangularshapewithcontinuouslateralsupportalongone,two,three,orfouredges.Thispracticeassumesthat(1)thesupportedglassedgesfortwo,three,andfour-sidedsupportconditionsaresimplysupportedandfreetoslipinplane;(2)glasssupportedontwosidesactsasasimplysupportedbeam;and(3)glasssupportedononesideactsasacantilever.1.4Thispracticedoesnotapplytoanyformofwired,patterned,etched,sandblasted,drilled,notched,orgroovedglasswithsurfaceandedgetreatmentsthataltertheglassstrength.1.5Thispracticeaddressesonlythedeterminationoftheresistanceofglasstouniformlateralloads.Thefinalthicknessandtypeofglassselectedalsodependsuponavarietyofotherfactors(see5.3).1.6Chartsinthispracticeprovideameanstodetermineapproximatemaximumlateralglassdeflection.AppendixX1andAppendixX2provideadditionalprocedurestodeterminemaximumlateraldeflectionforglasssimplysupportedonfoursides.AppendixX3presentsaproceduretocomputeapproximateprobabilityofbreakageforannealed(AN)monolithicglasslitessimplysupportedonfoursides.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparentheses......
【中国标准分类号】:Q33
【国际标准分类号】:81_040_30
【页数】:61P.;A4
【正文语种】:英语