BS EN 12811-2-2004 Temporary works equipment - Information on materials《临时工作设备 材料信息》.pdf

1、BRITISH STANDARD BS EN 12811-2:2004 Temporary works equipment Part 2: Information on materials The European Standard EN 12811-2:2004 has the status of a British Standard ICS 91.220 BS EN 12811-2:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committ

2、ee on 18 August 2004 BSI 18 August 2004 ISBN 0 580 44303 5 National foreword This British Standard is the official English language version of EN 12811-2:2004. The UK participation in its preparation was entrusted by Technical Committee B/514, Access and support equipment, to Subcommittee B/514/21,

3、Access and working scaffolds and their components (props, tubes and couplers), which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Additional information As stated in the Scope of EN 12811-2:2004, this standard “provi

4、des guidance on where to find information on materials often used in temporary works.“ It lists standards and provides information concerning the more commonly used steel, aluminium alloys, cast iron, timber and timber based materials. The Scope of EN 12811-2:2004 also states that the standard “draw

5、s attention to a number of points that a designer should take into account“. It does not purport to be exhaustive. Almost all the information given in this standard has been selected from the standards referenced. The information in these referenced standards may be amended or revised as circumstanc

6、es dictate. The latest versions of the referenced standards will themselves contain the full information, in context, to be used. 8.1 gives three classes of corrosion protection for ferrous metal products. The friction values of corrosion protection outside these classes may differ significantly fro

7、m one another, particularly in the case of more modern corrosion protection treatments, such as non-electrolytically applied zinc flake coatings. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalog

8、ue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its corre

9、ct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests info

10、rmed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document ind

11、icates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN128112 February2004 ICS91.220 Englishversion TemporaryworksequipmentPart2:Informationonmaterials EquipementstemporairesdechantiersPartie2: Informationc

12、oncernantlesmatriaux TemporreKonstruktionenfrBauwerkeTeil2: InformationenzudenWerkstoffen ThisEuropeanStandardwasapprovedbyCENon17December2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithout

13、anyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENm

14、emberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Nor

15、way,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENna

16、tionalMembers. Ref.No.EN128112:2004EEN128112:2004(E) 2 Contents page 1 Scope . 5 2 Normativereferences . 5 3 General. 6 3.1 Selectionofmaterials . 6 3.2 Characteristicvalues. . 6 3.3 Inspectiondocuments 6 3.4 Effectsoffabrication 6 4 Steel 6 4.1 General. 6 4.2 Dimensions,massandtolerance 6 4.3 Fract

17、uretoughness 7 4.4 SteelgradesinEN10142 . 7 5 Castiron. 7 5.1 General. 7 5.2 Prototypetesting . . 7 5.3 Inspectiondocument. . 7 6 Aluminiumalloys 8 6.1 General. 8 6.2 Dimensions,massandtolerance 8 6.3 Heataffectedzones . . 8 6.4 Inspectiondocument. . 8 7 Timberandtimberbasedmaterials . . 8 7.1 Gener

18、al. 8 7.2 Solidtimberandgluedlaminatedtimber . 9 7.2.1 General. 9 7.2.2 Characteristicvalues. . 9 7.2.3 Dimensions,massandtolerance 9 7.3 Woodbasedmaterials(plywood,particleboard,fibreboard). 9 7.3.1 General. 9 8 Protectionagainstcorrosionanddeterioration 9 8.1 Ferrousmetalproducts 9 8.2 Aluminiumal

19、loys 10 8.3 Plywoodforscaffolddecks . 10 9 Welding 10 AnnexA (informative) Informationtakenfromothermaterialanddesignstandards. 11 Bibliography . 17EN128112:2004(E) 3 Foreword Thisdocument(EN128112:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC 53“Temporre Baukonstruktionen”,thesecretariatofwhichish

20、eldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyAugust2004,andconflictingnationalstandardsshallbewithdrawnat thelatestbyAugust2004. ThisEuropeanStandardEN12811consistsofthefollowingpartsunderthegeneraltitle:Temp

21、oraryworks equipment: Part1:ScaffoldsPerformancerequirementsandgeneraldesign Part2:Informationonmaterials Part3:Loadtesting AnnexAisinformative. ThisdocumentincludesaBibliography. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplemen

22、tthisEuropeanStandard:Austria,Belgium,Cyprus,CzechRepublic, Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania, Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland andUnitedKingdom.EN128112:2004(E) 4 Introduction Th

23、isEuropeanStandardrepresentsasupportingstandardforproductstandardsproducedbyCEN/TC53. IttakesintoaccountthematerialrelatedcommentsonthefollowingdraftsobtainedintheCENenquiry: prEN128101:1997 ,FaadescaffoldsmadeofprefabricatedcomponentsPart1:Productspecifications. prEN128102, Faadescaffoldsmadeofpref

24、abricatedcomponentsPart2:Particularmethodsofstructural design prEN12811:1997, ScaffoldsPerformancerequirementsandgeneraldesign. prEN12812:1997, FalseworkPerformancerequirementsandgeneraldesign. prEN12813:1997,LoadbearingtowersmadeofprefabricatedelementsMethodsofparticulardesignand assessment. prEN13

25、3311:1998, TrenchliningsystemsPart1:Productspecifications. prEN133312:1998, TrenchliningsystemsPart2:Assessmentbycalculationortest . prEN13377:1998, PrefabricatedtimberformworkbeamsRequirements,classificationandassessment. Thisstandardislimitedtotheselectionoftypesandgradesofmaterialfromstandards,wh

26、ichareeither internationalorEuropeanstandards.However,inthefieldoftemporaryworksequipmenttheuseofother materialscanbeindicatedorevenimperative. Theuseofnonstandardised(new)materialscangiveadvantageforparticularcomponents.Butthisuse preventsthemarkingoftheproductconforminginotherrespectstotheproducts

27、tandardwiththenumberof therespectiveproductstandard. Thecomponentsoftemporaryworksequipmentareusedformanyyears.Therearecomponentsinthestores oftheusersandonbuildingsiteswhicharemadeofmaterialscorrespondingtoformernationalstandards. Thisstandarddoesnotintendtopreventneithertheuseofnonstandardised(new

28、)materialsnortheuseof componentsmadeofoldmaterials. ItisbeyondthescopeandthecompetenceofCEN/TC53toformulateregulationsfornonstandardizednew materialsandforoldmaterialsformerstandardizednationally. IntheabsenceofaEuropeanproductdirectivefortemporaryworksequipment,suchregulationsandtheir mutualacknowl

29、edgementarereservedtothesingleEuropeancountry. ForclosingthegapuntilaEuropeanregulationisavailable,thefollowingrecommendationsaregiven: 1. Thesinglecountrycouldaddanationalforewordtothisstandard,whichregulatesthefurtheruseof components,madeofoldmaterialsforitsjurisdiction. 2. TheWorkingGroupsofCEN/T

30、C53couldincludearequirementintheirproductstandardsthatalso productsmadepartiallyofmaterialsnotcoveredbyISOorENstandardsmayhavethenumberofthe productstandard,iftheyaremarkedwithanasteriskadditionallyandifthefactisrecordedintheproduct manual.EN128112:2004(E) 5 1Scope ThisEuropeanStandardprovidesguidan

31、ceonwheretofindinformationonmaterialsoftenusedintemporary works.Itdrawsattentiontoanumberofpointsthatadesignershouldtakeintoaccount. Theinformationgivenislimitedtocommonlyusedsteel,aluminiumalloys,castiron,timberandtimberbased materials. Requirementsarealsogivenforwelding,forlimitingcorrosionandothe

32、rdeterioration. Itislimitedtotheselectionoftypesandgradesofmaterialfromstandards,whichareeitherinternationalor EuropeanStandards. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesint

33、hetext,andthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies(includingamendments). EN301,Adhesi

34、ves,phenolicandaminoplastic,forloadbearingtimberstructuresClassificationand performancerequirements. EN336, StructuraltimberSizes,permitteddeviations. EN338, StructuraltimberStrengthclasses. EN390, GluedlaminatedtimberSizesPermissibledeviations. EN7291, QualityrequirementsforweldingFusionweldingofme

35、tallicmaterialsPart1:Guidelinesfor selectionanduse. EN1562, FoundingMalleablecastirons. EN1563, FoundingSpheroidalgraphitecastirons. EN10142, ContinuouslyhotdipzinccoatedlowcarbonsteelsstripandsheetforcoldformingTechnical deliveryconditions. EN10204, MetallicproductsTypesofinspectiondocuments. ENV19

36、9311, Eurocode3:DesignofsteelstructuresPart11:Generalrulesandrulesforbuildings. ENV199313, Eurocode3:DesignofsteelstructuresPart13:GeneralrulesSupplementaryrulesfor coldformedthingaugemembersandsheeting. ENV199511, Eurocode5:DesignoftimberstructuresPart11:Generalrulesandrulesforbuildings. ENV199911:

37、1998, Eurocode9:DesignofaluminiumstructuresPart11:GeneralrulesGeneralrules andrulesforbuildings. ENISO1461;HotdipgalvanizedcoatingsonfabricatedironandsteelarticlesSpecificationsandtest methods(ISO1461:1999). ENISO12944Parts1to8, PaintsandvarnishesCorrosionprotectionofsteelstructuresbyprotective pain

38、tsystems.EN128112:2004(E) 6 3General 3.1Selectionofmaterials Materialusedshallbesufficientlyrobustanddurabletowithstandnormalworkingconditions. Materialsshallbefreefromanyimpuritiesanddefects,whichmayaffecttheirsatisfactoryuse. MaterialsshallbeselectedfromEuropeanorInternationalStandards. NOTE Commo

39、nlyusedmaterialsarelistedinannexA. 3.2Characteristicvalues Theminimumvaluesforyieldstressorproofstressandforthetensilestrengthspecifiedinmaterialstandards shallbeusedascharacteristicvaluesindesigncalculations. 3.3Inspectiondocuments Materialsforcomponents,whichaffecttheloadbearingbehaviourand/orheal

40、thandsafetyaspects,shallbe deliveredwithaninspectiondocumentinaccordancewithEN10204.Theminimumlevelshallbe2.2. 3.4Effectsoffabrication Accountshallbetakenofformingorotherfabricationtechniquessuchasweldingwhichcanaffectthe materialproperties.Forexample,forsteeltheyieldstresscouldberaisedandtheductili

41、tycouldbereduced bytheseoperations. 4Steel 4.1General ThecommonlyusedmaterialsarelistedinTableA.1andTableA.2.Inaddition,requirementsaregivenin ENV199311andENV199313. SomematerialvaluesaregiveninTable1. Table1Materialvaluesforsteel Modulusofelasticity, E MPa Shearmodulus, G MPa Coefficientoflinear th

42、ermalexpansion a K 1 Density 3 m kg 210000 81000 5 10 2 , 1 - 7850 1MPa=1N/mm 2 4.2Dimensions,massandtolerance Dimensions,massandtolerancesshallbeinaccordancewiththematerialstandardspecified.EN128112:2004(E) 7 4.3Fracturetoughness Whenstructuresareusedattemperaturesbelow20C,impactresistantmaterialsh

43、allbeused.Foradvice andforreferencetemperaturerelatedtomaximumthicknessseeENV199311. 4.4SteelgradesinEN10142 Fordesignpurposes,thesteelgradesinEN10142shallbeconsideredtohaveayieldstressof140N/mm andatensilestrengthof270N/mm. 5 Castiron 5.1General MalleablecastironinaccordancewithEN1562orspheroidalgr

44、aphitecastironinaccordancewithEN1563 shallbeused. WhenweldingwhiteheartmalleablecastironENGJMW36012shouldbeused. Duetoductilityrequirementstheelongationforspheroidalgraphitecastironshallbelimitedto % 12 5 A ,for malleablecastironto % 7 4 , 3 A . SomematerialvaluesaregiveninTable2. Table2Materialvaluesforcastiron Castiron Modulusof elasticity, E MPa Poissonsratio Coefficientoflinear thermalexpansion a K 1 Density 3