ASTM A421/A421M-2010 预应力混凝土用未涂覆的应力消除钢丝的标准规格

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【英文标准名称】:StandardSpecificationforUncoatedStress-RelievedSteelWireforPrestressedConcrete
【原文标准名称】:预应力混凝土用未涂覆的应力消除钢丝的标准规格
【标准号】:ASTMA421/A421M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:A01.05
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:冷拉制线材;低弛豫线材;预应力混凝土;钢丝(钢筋束);应力放松钢线;混凝土配筋.规格;钢丝(预应力钢筋混凝土);冷拉钢丝.规格;裸露钢制品
【英文主题词】:cold-drawnwire;low-relaxationwire;prestressedconcrete;steelwire(tendon);stress-relievedwire;Concretereinforcement--specifications;Steelwire(prestressedconcrete);Cold-drawnsteelwire--specifications;Uncoatedsteel
【摘要】:1.1Thisspecificationcoverstwotypesofuncoatedstress-relievedroundhigh-carbonsteelwirecommonlyusedinprestressedlinearconcreteconstruction,asfollows:1.1.1TypeBAwireisusedforapplicationsinwhichcold-enddeformationisusedforanchoringpurposes(ButtonAnchorage),and1.1.2TypeWAwireisusedforapplicationinwhichtheendsareanchoredbywedges,andnocold-enddeformationofthewireisinvolved(WedgeAnchorage).1.2Asupplementaryrequirement(S1)isprovidedforusewherelow-relaxationwireandrelaxationtestingforthatproductisrequiredbythepurchaser.Thesupplementaryrequirementappliesonlywhenspecifiedinthepurchaseorder.1.3Thisspecificationisapplicableforordersineitherinch-poundsunits(asSpecificationA421)orinSIunits(asSpecificationA421M).1.4Thevaluesstatedineitherinch-poundorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.
【中国标准分类号】:H49
【国际标准分类号】:77_140_65
【页数】:4P.;A4
【正文语种】: