JG/T 5057.3-1995 建筑机械与设备 高强度六角头螺栓 细杆
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基本信息
| 标准名称： | 建筑机械与设备 高强度六角头螺栓 细杆 |
| 英文名称： | strength bolts with hexagon head—Reduced shank |
| 中标分类： |
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| ICS分类： |
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| 发布部门： | 中华人民共和国建设部 |
| 发布日期： | 1995-02-27 |
| 实施日期： | 1995-10-01 |
| 首发日期： | |
| 作废日期： | 2010-01-01 |
| 提出单位： | 建设部标准定额研究所 |
| 归口单位： | 建设部机械设备与车辆标准技术归口单位北京建筑机械综合研究所 |
| 起草单位： | 建设部北京建筑机械综合研究所 |
| 起草人： | 罗世俊、孙艳秋 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1995-10-01 |
| 页数： | 5页 |
适用范围
本标准规定了高强度六角头螺栓——细杆的型式与规格。本标准适用于建筑机械与设备用摩擦型高强度六角法兰面螺母。工业与民用建筑钢结构、工程机械、重型机械、港口机械、化工设备亦可参照使用。
前言
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引用标准
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MIL-R-7705B (NOTICE 1), MILITARY SPECIFICATION: RADOME, GENERAL SPECIFICATION FOR (26 FEB 1988) [NO S/S DOCUMENT]., MIL-R-7705B dated 14 January 1975 has been reviewed and determined to be valid for use in acquisition.【英文标准名称】:StandardTestMethodforLaboratoryMeasurementofImpactSoundTransmissionThroughFloor-CeilingAssembliesUsingtheTappingMachine
【原文标准名称】:使用夯击机进行冲击声通过地板和天花板组件的实验室测量标准试验方法
【标准号】:ASTME492-2009
【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】:E33.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:地板天花板组件;冲击声音传输;夯击机;声学试验;冲击声音传输(建筑元件);实验室声音传输测试;隔墙;夯击机方法
【英文主题词】:floorceilingassemblies;impactsoundtransmission;tappingmachine;Acousticaltests;Floor-ceilingassemblies;Impactsoundtransmission(buildingelements);Laboratorysoundtransmissiontesting;Partitions;Tappingmachinemethod
【摘要】:Thespectrumofthenoiseintheroombelowthetestspecimenisdeterminedbythefollowing:Thesizeandthemechanicalpropertiesofthefloor-ceilingassembly,suchasitsconstruction,surface,mountingoredgerestraints,stiffness,orinternaldamping,Theacousticalresponseoftheroombelow,Theplacementoftheobjectordeviceproducingtheimpacts,andThenatureoftheactualimpactitself.Thistestmethodisbasedontheuseofastandardizedtappingmachineofthetypespecifiedin8.1placedinspecificpositionsonthefloor.Thismachineproducesacontinuousseriesofuniformimpactsatauniformrateonatestfloorandgeneratesinthereceivingroombroadbandsoundpressurelevelsthataresufficientlyhightomakemeasurementspossiblebeneathmostfloortypeseveninthepresenceofbackgroundnoise.Thetappingmachineitself,however,isnotdesignedtosimulateanyonetypeofimpact,suchasproducedbymaleorfemalefootsteps.Becauseofitsportabledesign,thetappingmachinedoesnotsimulatetheweightofahumanwalker.Therefore,thestructuralsounds,i.e.,creaksorboomsofafloorassemblycausedbysuchfootstepexcitationisnotreflectedinthesinglenumberimpactratingderivedfromtestresultsobtainedbythistestmethod.Thedegreeofcorrelationbetweentheresultsoftappingmachinetestsinthelaboratoryandthesubjectiveacceptanceoffloorsundertypicalconditionsofdomesticimpactexcitationisuncertain.Thecorrelationwilldependonboththetypeoffloorconstructionandthenatureoftheimpactexcitationinthebuilding.Inlaboratoriesdesignedtosatisfytherequirementsofthistestmethod,theintentisthatonlysignificantpathforsoundtransmissionbetweentheroomsisthroughthetestspecimen.Thisisnotgenerallythecaseinbuildingswherethereareoftenmanyotherpathsforsoundsx2014;flankingsoundtransmission.Consequentlysoundratingsobtainedusingthistestmethoddonotrelatedirectlytosoundisolationinbuildings;theyrepresentanupperlimittowhatwouldbemeasuredinafieldtest.Thistestmethodisnotintendedforfieldtests.FieldtestsareperformedaccordingtoTestMethodE1007.1.1Thistestmethodcoversthelaboratorymeasurementofimpactsoundtransmissionoffloor-ceilingassembliesusingastandardizedtappingmachine.Itisassumedthatthetestspecimenconstitutestheprimarysoundtransmissionpathintoareceivingroomlocateddirectlybelowandthatagoodapproximationtoadiffusesoundfieldexistsinthisroom.1.2Measurementsmaybeconductedonfloor-ceilingassembliesofallkinds,includingthosewithfloating-floororsuspendedceilingelements,orboth,andfloor-ceilingassembliessurfacedwithanytypeoffloor-surfacingorfloor-coveringmaterials.1.3Thistestmethodprescribesauniformprocedureforreportinglaboratorytestdata,thatis,thenormalizedone-thirdoctavebandsoundpressurelevelstransmittedbythefloor-ceilingassemblyduetothetappingmachine.1.4LaboratoryAccreditation8212;TherequirementsforaccreditingalaboratoryforperformingthistestmethodaregiveninAnnexA2.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:9P.;A4
【正文语种】: