1、BRITISH STANDARD BS EN 12811-1:2003 Temporary works equipment Part 1: Scaffolds Performance requirements and general design The European Standard EN 12811-1:2003 has the status of a British Standard ICS 91.220 BS EN 12811-1:2003 This British Standard was published under the authority of the Standard
2、s Policy and Strategy Committee on 16 June 2004 BSI 16 June 2004 ISBN 0 580 43279 3 National foreword This British Standard is the official English language version of EN 12811-1:2003. It supersedes BS 5973:1993 which is withdrawn. The UK participation in its preparation was entrusted by Technical C
3、ommittee B/514, Access and support equipment, to Subcommittee B/514/21, Access and working scaffolds, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. It is anticipated that CEN will issue a corrigendum to correct
4、the following items: a) in the key of Figure 5, line 3, “see Table 4” will read as “see Table 3”; b) in Equation 10 the value “2,4M B,d ” will read as “2,0M B,d ”; c) in Table C.1 the bending moment M B,kin kN m for class B, the value “2,4” will read as “1,4”; d) in the title of Figure C.2, “and C”
5、will be deleted. EN 12811-1:2003 is published with three national annexes. National annex NA gives general guidance on the use of this standard. National annex NB gives detailed information on the differences between this standard and BS 5973 (withdrawn). National annex NC discusses the aspects of s
6、tructural design by limit state covered by this standard, but not considered in BS 5973 (withdrawn). Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International
7、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 correct application. Compliance with a British Sta
8、ndard 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 informed; monitor related international and Europ
9、ean 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 56, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Ame
10、ndments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN128111 December2003 ICS91.220 Englishversion TemporaryworksequipmentPart1:ScaffoldsPerformance requirementsandgeneraldesign EquipementstemporairesdechantiersPartie1: EchafaudagesExigencesdeperform
11、anceettude,en gnral TemporreKonstruktionenfrBauwerkeTeil1: ArbeitsgersteLeistungsanforderungen,Entwurf, KonstruktionundBemessung ThisEuropeanStandardwasapprovedbyCENon4September2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Stan
12、dardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra
13、 nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherla
14、nds,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMem
15、bers. Ref.No.EN128111:2003EEN128111:2003(E) 2 Contents Page Introduction .4 1 Scope 5 2 Normativereferences 5 3 Termsanddefinitions. .6 4 Materials10 5 Generalrequirements 11 6 Requirementsforstructuraldesign .17 7 Productmanual 26 8 Instructionmanual .26 9 Workonsite 27 10 Structuraldesign .27 Anne
16、xA (informative) Windloadsoncladworkingscaffolds.35 AnnexB (normative) Basejacks;dataforcalculation 37 AnnexC (normative) Characteristicvaluesoftheresistancesforcouplers .41 AnnexD (Informative) NationalAdeviations .44 Bibliography 45 National annex NA (informative) Summary of major points 46 Nation
17、al annex NB (informative) Requirements unique to this standard or covered in less detail in BS 5973 (withdrawn) .48 National annex NC (informative) Aspects of structural design covered by this standard but not by BS 5973 . 54 National bibliography.56 EN128111:2003(E) 3 Foreword Thisdocument(EN128111
18、:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC53“Temporaryworks equipment”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJune2004,andconflictingnationalstandardsshallbewithdrawnatthela
19、testby June2004. ThisEuropeanStandardisoneofthepackageofstandardslistedbelow: EN128101,FaadescaffoldsmadeofprefabricatedcomponentsPart1:Productspecifications EN128102,FaadescaffoldsmadeofprefabricatedcomponentsPart2:Particularmethodsofstructural design EN128111,TemporaryworksequipmentPart1:Scaffolds
20、Performancerequirementsandgeneral design prEN128112,Temporaryworksequipment.Part2:Informationonmaterials EN128113,TemporaryworksequipmentPart3:Loadtesting AnnexesAandDareinformative.AnnexesBandCarenormative. Thisdocumentincludesabibliography. AccordingtotheCEN/CENELECInternalRegulations,thenationals
21、tandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN128111:2003(E)
22、4 Introduction Thepurposeofaworkingscaffoldistoprovideasafeplaceofworkwithsafeaccesssuitablefortheworkbeing done.ThisEuropeanStandardsetsoutperformancerequirementsforworkingscaffolds.Thesearesubstantially independentofthematerialsofwhichthescaffoldismade.Thestandardisintendedtobeusedasthebasisfor en
23、quiryanddesign. Asanumberofoptionsaregiventosuitdifferentapplications,achoicehastobemadebetweenthevarious alternativeswithinthisEuropeanStandard.Allotherrequirementscouldbeinanassociatedjobspecification. Basedontheserequirements,asetofrulescanbedrawnupforaparticulartypeofequipment.Thesemaybe standar
24、dforgeneraluse,orspeciallypreparedforaparticularjob. ThisEuropeanStandardincludesrulesforstructuraldesign,whichareofparticularrelevancetoscaffoldsmadeof certainmaterials. FormaterialsthisstandardrefersonlytovalidENstandards.Howeveralargestockofequipmentmadeof materialsconformingtostandardsnolongerva
25、lidisinuse.Thisstandarddoesnotcovertheuseofthisequipment. Becausethedimensionsoftheworkingscaffolddependonthetypeofworkandthemethodofexecution,the correspondingnationallegalrulesshouldbetakenintoaccount.EN128111:2003(E) 5 1Scope ThisEuropeanStandardspecifiesperformancerequirementsandmethodsofstructu
26、ralandgeneraldesignfor accessandworkingscaffolds,referredtofromhereonasworkingscaffolds.Requirementsgivenareforscaffold structures,whichrelyontheadjacentstructuresforstability.Ingeneraltheserequirementsalsoapplytoother typesofworkingscaffolds.Normalrequirementsaresetdown,butthereisalsoprovisionforsp
27、ecialcases. ThisEuropeanStandardalsospecifiesstructuraldesignruleswhencertainmaterialsareusedandgeneralrules forprefabricatedequipment. Thestandardexcludes: platformssuspendedbyropes,whetherfixedormovable; horizontallymovableplatformsincludingMobileAccessTowers(MAT); poweroperatedplatforms; scaffold
28、susedasprotectionforroofwork; temporaryroofs. NOTE1 Mostworkingscaffoldsareformedfromprefabricatedcomponentsorfromtubesandcouplers.Someexamplesof workingscaffoldsarefaadescaffolds,statictowersandbirdcagescaffolds,butdetailsarenotgivenforallofthese. NOTE2 Falseworkandshoringmaybemadeofthestructuralco
29、mponentsdescribedinthisstandard,butarenotworking scaffolds. NOTE3 ParticularrequirementsforfaadescaffoldsmadeofprefabricatedcomponentsarespecifiedinEN128101and EN128102. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativeref
30、erencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapp
31、ly(includingamendments). EN74:1988, Couplers,loosespigotsandbaseplatesforuseinworkingscaffoldsandfalseworkmadeofsteel tubesRequirementsandtestprocedures. prEN741, Couplers,spigotsandbaseplatesforuseinfalseworkandscaffoldsPart1:Couplersfortubes Requirementsandtestmethods. EN338, StructuraltimberStren
32、gthclasses. EN128101:2003, FaadescaffoldsmadeofprefabricatedelementsPart1:Productspecifications. EN128102,FaadescaffoldsmadeofprefabricatedelementsPart2:Methodsofparticulardesignand assessment. prEN128112: TemporaryworksequipmentPart2:Informationonmaterials. EN128113: TemporaryworksequipmentPart3:Lo
33、adtesting. prEN12812:1997, FalseworkPerformancerequirementsandgeneraldesign. ENV1990, Eurocode1:Basisofstructuraldesign.EN128111:2003(E) 6 ENV199124, Eurocode1:BasisofdesignandactionsonstructuresPart24:Windactions. ENV199311:1992, Eurocode3:DesignofsteelstructuresPart11:Generalrulesandrulesforbuildi
34、ngs. ENV199511, Eurocode5:DesignoftimberstructuresPart11:Generalrulesandrulesforbuildings. ENV199911:1998, Eurocode9:DesignofaluminiumstructuresPart11:Commonrules. 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply(seealsoFigure1): 3.1 anchorage meansinse
35、rtedin,orattachedto,thestructureforattachingatiemember NOTE Theeffectofananchoragemaybeachievedbythetiebeingconnectedtoapartofthestructureprimarilyintended forotherpurposes,see3.23. 3.2 basejack baseplate,whichhasameansofverticaladjustment 3.3 baseplate plateusedforspreadingtheloadinastandardoveragr
36、eaterarea 3.4 birdcagescaffold scaffoldstructurecomprisingagridofstandardsandadeckedareausuallyintendedforworkingorstorage 3.5 bracing inhorizontalplane assemblyofcomponentswhichprovidesshearstiffnessinthehorizontalplanes,e.g.bydeckingcomponents, frames,framedpanels,diagonalbracesandrigidconnections
37、betweentransomsandledgersorotheritemsused forhorizontalbracing 3.6 bracinginverticalplane assemblyofcomponentswhichprovidesshearstiffnessintheverticalplanes,e.g.byclosedframeswithorwithout cornerbracing,openframes,ladderframeswithaccessopenings,rigidorsemirigidconnectionsbetween horizontalsandthever
38、ticalcomponents,diagonalbracing,orotheritemsusedforverticalbracing 3.7 cladding materialnormallyintendedtoprovideweatheranddustprotection,typicallysheetingornetting 3.8 coupler deviceusedtoconnecttwotubes 3.9 design conceptionandcalculationtoproduceaschemeforerectionEN128111:2003(E) 7 3.10 ledger ho
39、rizontalmembernormallyinthedirectionofthelargerdimensionoftheworkingscaffold 3.11 modularsystem systeminwhichtransomsandstandardsareseparatecomponentswherethestandardsprovidefacilitiesat predetermined(modular)intervalsfortheconnectionforotherscaffoldcomponents 3.12 netting perviouscladdingmaterial 3
40、.13 node theoreticalpointwheretwoormoremembersareconnectedtogether 3.14 parallelcoupler couplerusedforconnectingtwoparalleltubes 3.15 platform oneormoreplatformunitsinonelevelwithinabay 3.16 platformunit unit(prefabricatedorotherwise)thatsupportsaloadonitsownandwhichformstheplatformorpartoftheplatfo
41、rm andmayformastructuralpartoftheworkingscaffold 3.17 rightanglecoupler couplerusedforconnectingtwotubescrossingatarightangle 3.18 sheeting imperviouscladdingmaterial 3.19 sideprotection setofcomponentsformingabarriertoprotectpeoplefromtheriskoffallingandtoretainmaterials 3.20 sleevecoupler coupleru
42、sedforjoiningtwotubeslocatedcoaxially 3.21 standard uprightmember 3.22 swivelcoupler couplerusedforconnectingtwotubescrossingatanyangle 3.23 tiemember componentofthescaffold,whichconnectsitwithananchorageatthestructureEN128111:2003(E) 8 3.24 transom horizontalmembernormallyinthedirectionofthesmaller
43、dimensionsoftheworkingscaffold 3.25 workingarea sumoftheplatformsinonelevel,toprovideanelevatedsafeplaceforpeopletoworkonandtogiveaccessto theirwork. 3.26 workingscaffold temporaryconstruction,whichisrequiredtoprovideasafeplaceofworkfortheerection,maintenance,repairor demolitionofbuildingsandotherst
44、ructuresandforthenecessaryaccessEN128111:2003(E) 9 Key h s Scaffoldheight b s Scaffoldbaywidth,centretocentreofstandards l s Scaffoldbaylength,centretocentreofstandards h l Scaffoldliftheight 1 Bracinginverticalplane(transversediagonal) (3.6) 2 Bracinginhorizontalplane(3.5) 3 Sideprotection(3.19) 4 Bracketbrace() 5 Node (3.13) 6 Bracinginverticalplane(longitud
