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【英文标准名称】:ULStandardforSafetyforTestsforFireResistanceofBuildingJointSystems
【原文标准名称】:建筑物连接系统的耐火性试验
【标准号】:UL2079-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004-10-21
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);定义;建筑物;燃烧试验;试验;连接;开口;耐火性;建筑材料;建设工程;建筑材料检验
【英文主题词】:Buildingmaterialtesting;Buildingmaterials;Buildings;Constructionworks;Definition;Definitions;Fireresistance;Firetests;Joints;Openings;Specification(approval);Testing
【摘要】:1.1Thesetestsareapplicabletojointsystemsofvariousmaterialsandconstructionthatareintendedforuseinlinearopeningsbetweenadjacentfireresistivestructures.1.2Thefireenduranceratingsforjointsystemsareintendedtoregisterperformanceduringtheperiodoffireexposureandarenotintendedtobeinterpretedashavingdeterminedtheacceptabilityofthejointsystemsforusebeforeorafterfireexposure.Theintentofthesemethodsistodevelopdatatoassistothersindeterminingthesuitabilityofthejointsystemswherefireresistanceisrequired.1.3Theserequirementsareintendedtoevaluatethelengthoftimethatthetypesofjointsystemsspecifiedin1.1willcontainafireduringapredeterminedtestexposure.Thetestevaluatesthejointsystem’sresistancetoheatand,insomeinstances,toahosestream,whilecarryinganappliedloadiftheassemblyisloadbearing.Themethodoftestingalsoincludesoptionalairleakageteststodeterminetherateofairleakagethroughjointsystemsresultingfromaspecifiedairpressuredifferenceappliedacrossthesurfaceofthejointsystems.1.4Undertheserequirementsajointsystemissubjectedtoastandardfireexposurecontrolledtoachievespecifiedtemperaturesthroughoutaspecifiedtimeperiod.Thisexposurebyitselfisnotintendedtoberepresentativeofallfireconditions;conditionsvarywithchangesintheamount,natureanddistributionoffireloading,ventilation,compartmentsizeandconfiguration,andheatsinkcharacteristicsofthecompartment.1.5Alljointsystemsarecycledthroughtheirintendedrangeofmovementpriortofireexposuretodemonstratethejointsystem’srangeofmovementandtheimpactofthejointsystemduringmovementontheadjacentfireresistivestructures.Jointsystemsarerequiredtobeloadedtotheirdesignedliveloadcapacityduringthefiretest.Fortestsofwall-to-wallandhead-of-walljointsystems,thefiretestisfollowedbytheapplicationofaspecifiedstandardhosestream.1.6Theserequirementscoverthemeasurementofthetransmissionthroughthejointsystemofheatandgasessufficientlyhottoignitecottonwaste.1.7Revisedandrelocatedas1.14March10,20061.8Theserequirementsprovidearelativemeasureoffireperformanceofcomparableassembliesunderthesespecifiedfireexposureconditions.Anyvariationfromtheconstructionorconditionsthataretested,suchasmethodofassemblyandmaterials,isnotwithinthescopeofthistestmethod.1.9Testsforevaluatingthesuitabilityofpouredorformed-in-placematerialsforuseinjointsystemsundernon-fireconditionsarefoundintheStandardTestMethodforAdhesionandCohesionofElastomericJointSealantsUnderCyclicMovement(HockmanCycle),ASTMC719-93.1.10Testsforevaluatingthesuitabilityofjointsystemsotherthanthosewithpouredorformed-in-placematerialsundernon-fireconditionsarefoundintheStandardTestMethodforCyclicMovementandMeasuringtheMinimumandMaximumJointWidthsofArchitecturalJointSystems,ASTME1399-91.
【中国标准分类号】:P16
【国际标准分类号】:13_220_50
【页数】:38P.;A4
【正文语种】:英语