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《AASHTO M180-2000 Standard Specification for Corrugated Sheet Steel Beams》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、IStandardSpecificationforCorrugatedSheetSteelBeamsforHighwayGuardrailAASHTODESIGNATION:M180-001.SCOPE2.3ANSIStandards:4.1.5Shape(W-BeamorThrieB1.13MMetricScrewBeam),and1.1Thisspecificationcoverscorru-ThreadsDMProfile4.1.6Exceptionstothisspecificationgatedsheetsteelpr
2、eparedforuseasB18.2.4.1MHexNuts,Styleorspecialrequirements,ifany.beamsinhighwayguardrails.1,Metric1.2ThevaluesstatedinSIunitsareB18.2.4.6MHexNuts,toberegardedasthestandard.Heavy,Memc5.BASISOFACCEPTANCE2.4MilitaryStandards:2.REFERENCEDDOCUMENTSDOD-P-21035Paint,High5.1
3、AllmaterialshallbesubjecttoZincDustContent,Gal-inspectionandsamplingatthefabricat-2.1AASHTOStandards:vanizingRepairingplant,warehouse,orafterdeliveryM120Zinc(Metric)tothesiteofconstruction.M232M/M232ZincCoating5.2AcceptancebySampling:(Hot-Dip)onIronand5.2.1TheEnginee
4、rmaytakeoneSieeiTda-&w&-epieceofguardrail,abackupplate,andM291MCarbonandAlloyendorbuffersectionfromeach2003.CLASSIFICATIONSteelNuts[Metric]piecesinalot,orfromeachlotiflessM298CoatingsofZincMe-than200piecesareincludedtherein,forchanicallyDeposited3.1Fourtypesandtwocla
5、ssesofdeterminationofcompliancewithspeci-onIronandSteelguardrailareprovidedasfollows:ficationrequirements.IfonepiecefailsT65MîT65Mass[Weight]3.1.1Types:tomeet,twootherpiecesshallbetested.ofCoatingonIronandTypeI-Zinccoated,550g/m2(1.80Ifeitherofthesepiecesfailstoconfo
6、rm%ce!Artideswithoz/ft2)minimumsingle-spot.totherequirementsofthisspecification,ZincorZinc-AlloyTypeII-Zinccoated,1100g/m2(3.60thelotofmaterialrepresentedbytheseCoatingsoz/ft2)minimumsingle-spot.samplesshallberejected.Alotshall2.2ASTMStandards:TypeIII-Beamstobepainte
7、d.beconsideredthatquantityofmaterialA307StandardSpecificationTypeIV-BeamsofcorrosionresistantofferedforinspectionatonetimewhichforCarbonSteelsteel.bearsthesameheatandcoatingidentifi-BoltsandStuds,3.1.2Classes:cation.60,000psiTensileClassA-Basemetalnominalthick-5.3Acc
8、eptancebyBrandRegistra-Strengthness-2.67mm(0.105in.).tionandGuarantee:A653lA653MStandardClassB-Basemetalnominalthick-5.3.1Bymutuala
