ASTM D3200-1974(2005) 确定圆木电杆推荐应力的设计规范和方法
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来源:标准资料网
【英文标准名称】:StandardSpecificationandTestMethodforEstablishingRecommendedDesignStressesforRoundTimberConstructionPoles
【原文标准名称】:确定圆木电杆推荐应力的设计规范和方法
【标准号】:ASTMD3200-1974(2005)
【标准状态】:现行
【国别】:
【发布日期】:1974
【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】:D07.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:建筑;施工材料;木材;设置;设计
【英文主题词】:design;poles;stresses;timber
【摘要】:1.1Thisspecificationcoversthephysicalcharacteristicsofroundtimberconstructionpolestobeusedeithertreatedoruntreated.1.2Thistestmethodcoversbasicprinciplesforestablishingrecommendeddesignstressvaluesforroundtimberconstructionpolesthatareapplicabletothequalitydescribed.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B68
【国际标准分类号】:79_040
【页数】:2P.;A4
【正文语种】:
【英文标准名称】:
【原文标准名称】:弹簧用碳素钢油回火钢丝
【标准号】:JISG3560-1988
【标准状态】:作废
【国别】:日本
【发布日期】:1988-07-01
【实施或试行日期】:1988-07-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:弹簧;回火;金属线;钢;非合金钢;机械零部件;材料(按形状分);热处理;矿物油
【英文主题词】:
【摘要】:
【中国标准分类号】:H49
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:StandardPracticeforEstimationofHeatGainorLossThroughCeilingsUnderAtticsContainingRadiantBarriersbyUseofaComputerProgram
【原文标准名称】:通过计算机程序的使用对通过含辐射阻碍物的顶楼天花板得热和散热评估的标准规程
【标准号】:ASTMC1340-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:C16.21
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:建筑;热损失;计算方法;计算机软件
【英文主题词】:atticradiantbarriersystem;computerprogram;heatgain;heatloss
【摘要】:Manufacturersofradiantbarriersexpresstheperformanceoftheirproductsintermsofthetotalhemisphericalemittance.Thepurposeofaradiantbarrieristodecreasetheradiationheattransferacrosstheatticairspace,andhence,todecreasetheheatlossorgainthroughtheceilingbelowtheattic.Theamountofdecreaseinheatflowwilldependuponanumberoffactors,suchasweatherconditions,amountofmassorreflectiveinsulationintheattic,solarabsorptanceoftheroof,geometryoftheatticandroof,andamountandtypeofatticventilation.Becauseoftheinfinitecombinationsofthesefactors,itisnotpracticaltopublishdataforeachpossiblecase.Thecalculationofheatlossorgainofasystemcontainingradiantbarriersismathematicallycomplex,andbecauseoftheiterativenatureofthemethod,itisbesthandledbycomputers.Computersarenowwidelyavailabletomostproducersandconsumersofradiantbarrierstopermittheuseofthispractice.Theuserofthispracticemaywishtomodifythedatainputtorepresentaccuratelythestructure.Thecomputerprogramalsomaybemodifiedtomeetindividualneeds.Also,additionalcalculationsmaybedesired,forexample,tosumthehourlyheatflowsinsomefashiontoobtainestimatesofseasonalorannualenergyusages.Thismightbedoneusingthehourlydataasinputstoawhole-housemodel,andbychoosinghousebalancepointstouseascutoffpointsinthesummations.1.1Thispracticecoverstheestimationofheatgainorlossthroughceilingsunderatticscontainingradiantbarriersbyuseofacomputerprogram.Thecomputerprogramincludedasanadjuncttothispracticeprovidesacalculationalprocedureforestimatingtheheatlossorgainthroughtheceilingunderanatticcontainingatrussorraftermountedradiantbarrier.Theprogramalsoisapplicabletotheestimationofheatlossorgainthroughceilingsunderanatticwithoutaradiantbarrier.Thisprocedureutilizeshour-by-hourweatherdatatoestimatethehour-by-hourceilingheatflows.Theinteriorofthehousebelowtheceilingisassumedtobemaintainedataconstanttemperature.Atpresent,theprocedureisapplicabletosloped-roofatticswithrectangularfloorplanshavinganunshadedgabledroofandahorizontalceiling.Itisnotapplicabletostructureswithflatroofs,vaultedceilings,orcathedralceilings.Thecalculationalaccuracyalsoislimitedbythequalityofphysicalpropertydatafortheconstructionmaterials,principallytheinsulationandtheradiantbarrier,andbythequalityoftheweatherdata.1.2Undersomecircumstances,interactionsbetweenradiantbarriersandHVACductsinatticscanhaveasignificanteffectonthethermalperformanceofabuilding.Ductsareincludedinanextensionofthecomputermodelgivenintheappendix.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.
【中国标准分类号】:P32
【国际标准分类号】:91_120_10
【页数】:21P.;A4
【正文语种】:
