【英文标准名称】:StandardPracticeforInstallationofCeilingSuspensionSystemsforAcousticalTileandLay-inPanelsinAreasSubjecttoEarthquakeGroundMotions
【原文标准名称】:在遭受地震地区安装隔音砖和镶板用天花板吊顶系统的规程
【标准号】:ASTME580/E580M-2009a
【标准状态】:现行
【国别】:
【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】:E33.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:ceilingsuspension;earthquake;seismic;seismicrestraint;suspendedceiling;Acousticalmaterials/applications;Ceilingsuspensionsystems;Installation--acousticmaterials;Metalceilingsuspensionsystems;Seismicallydisturbedareas
【摘要】:Thispracticeisaprescriptivesetofinstallationmethodstobeusedforsuspendedceilingsandisoftenusedinlieuofdesigningaseparatelateralrestraintsystem.Theauthorityhavingjurisdictionshalldeterminetheapplicabilityofthispracticetolocalcoderequirements.ThispracticecoversinstallationofsuspendedceilingsystemsandrelatedcomponentsinareasthatrequireresistancetotheeffectsofearthquakemotionsasdefinedbyASCE7andtheInternationalBuildingCode.Thepracticeisbrokenintotwomainsections.Thefirstsectioncoversareaswithlighttomoderateearthquakepotential(SeismicDesignCategoryC)whiletheseconddealswithsevereearthquakepotential(SeismicDesignCategoryD,Ex0026;F).Thispracticeincludesrequirementsfrommultiplesourcesincludingpreviousversionsofthispractice,CISCASeismicRecommendationsforDirect-hungAcousticalTileandLay-inCeilings,SeismicZones0-2andCISCAGuidelinesforSeismicRestraintforDirectHungSuspendedCeilingAssemblies,SeismicZones3x0026;4,suspendedceilingrequirementsfromtheInternationalBuildingCodeandASCE7.Thepurposeistocombinetherequirementsfromthesesourcesintoasinglecomprehensivedocument.1.1Thispracticecoverstheinstallationofsuspendedsystemsforacousticaltileandlay-inpanelsandtheiradditionalrequirementsfortwogroupsofbuildingsthatareconstructedtoresisttheeffectsofearthquakemotionsasdefinedbyASCE7andtheInternationalBuildingCode.ThesegroupingsareforSeismicDesignCategoryCandSeismicDesignCategoriesD,EandF.1.2Theauthorityhavingjurisdictionshalldeterminetheapplicabilityofthispractice.1.3SpecificationC635andPracticeC636coversuspensionsystemsandtheirinstallationwithoutspecialregardtoseismiclateralrestraintneeds.Theyremainapplicableandshallbefollowedwhenthispracticeisspecified.1.4Thispracticeisnotintendedtostifleresearchanddevelopmentofnewproductsormethods.Thispracticeisnotintendedtopreventtheinstallationofanymaterialorprohibitanydesignormethodofconstructionnotprescribedinthispractice,providedthatanysuchalternativehasbeensubstantiatedbyverifiableengineeringdataorfull-scaledynamictestingthatisacceptabletotheauthorityhavingjurisdiction.1.5Ceilingareasof1000ft2[92.9m2]orlessshallbeexemptfromthelateralforcebracingrequirementsof5.2.8.1.6Ceilingsconstructedofgypsumboardwhichisscrewornailattachedtosuspendedmembersthatsupportaceilingononelevelextendingfromwalltowallshallbeexemptfromtherequirementsofthispractice.1.7Freefloatingceilings(thosenotattacheddirectlytoanystructuralwalls)supportedbychainsorcablesfromthestructurearenotrequiredtosatisfytheseismicforcerequirementsprovidedtheymeetthefollowingrequirements:1.7.1Thedesignloadforsuchitemsshallequal1.4timestheverticaloperatingweight.1.7.2Seismicinteractioneffectsshallbeconsideredinaccordancewith5.7.1.7.3Theconnectiontothestructureshallallowa360x00B0;rangeofmotioninthehorizontalplane.1.8Thevaluesstatedineitherinch-poundorSIunitsaretoberegardedasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsresultinnonconformancewiththespecification.1.9【英文标准名称】:StandardTestMethodsforAccumulatedDepositioninaSteamGeneratorTube
【原文标准名称】:蒸汽发生器管中累积沉积物的标准试验方法
【标准号】:ASTMD3483-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D19.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:管;试验;沉积物;水
【英文主题词】:boiler;deposit;deposition;rifled;steamgeneratortube;boiler;deposit;deposition;rifled;steamgeneratortube;boiler;deposit;deposition;glassbead;rifled;steamgeneratortube
【摘要】:Theweightperunitareameasurementisanindicationoftherelativecleanlinessordirtinessoftheboiler.Itisusedtodeterminetheeffectivenessoftheboilerchemicaltreatmentprogramandtodeterminetheneedforchemicallycleaningtheboilersystems.Allowingtheinternaldepositiontoaccumulateuncheckedwilllikelyleadtoboilertubefailuresbymechanismsofunderdepositcorrosionandtubemetaloverheating.1.1Thesetestmethodscoverthedeterminationoftheweightperunitareaofwatersidedepositsonheat-transfersurfacesofsteamgeneratortubes.Thefollowingtestmethodsareincluded:SectionsTestMethodA-Mechanicalremovalbyscraperorvibratingtool-removeddepositweightmethod7to16TestMethodB-Chemicalremovalbysolvent-tubeweightlossmethod17to27TestMethodC-Mechanicalremovalbyglass-beadblasting-tubeweightlossmethod28to37