BS EN 1337-10-2003 Structural bearings - Inspection and maintenance《结构轴承 检验和维护》.pdf

1、BRITISH STANDARD BS EN 1337-10:2003 Corrected and reprinted November 2003 Structural bearings Part 10: Inspection and maintenance The European Standard EN 1337-10:2003 has the status of a British Standard ICS 91.010.30 BS EN 1337-10:2003 This British Standard, was published under the authority of th

2、e Standards Policy and Strategy Committee on 24 July 2003 BSI 5 November 2003 ISBN 0 580 42319 0 National foreword This British Standard is the official English language version of EN 1337-10:2003. The UK participation in its preparation was entrusted to Technical Committee B/522, Structural bearing

3、s, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under th

4、e 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 correct applicat

5、ion. 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 informed; monit

6、or 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 17, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when

7、 the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN133710 July2003 ICS91.010.30 Englishversion StructuralBearingsPart10:Inspectionandmaintenance AppareilsdappuistructurauxPartie10:Surveillance LagerimBauwesenTeil1

8、0:Inspektionund Instandhaltung ThisEuropeanStandardwasapprovedbyCENon12June2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcerni

9、ngs uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesa

10、mestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDI

11、ZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN133710:2003EEN133710:2003(E) 2 Contents page Foreword. 3 1 Scope 4 2 Normativereference

12、s . 4 3 Definitionsandsymbols. 4 4 Generalrequirementsforregularandprincipalinspections . 5 5 Regularinspection 5 6 Principalinspection 6 7 Servicingandreplacement . 10 AnnexA (informative) Explanations . 11 AnnexB (informative) Reportofinspectionofbearings. 12EN133710:2003(E) 3 Foreword Thisdocumen

13、t(EN133710:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC167“Structuralbearings“, thesecretariatofwhichisheldbyUNI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJanuary2004,andconflictingnationalstandardsshallbewithdra

14、wnatthelatest byJanuary2004. TheentireEuropeanStandardEN1337consistsof11Partslistedherebelow: Part1 Generaldesignrules Part2 Slidingelements Part3 Elastomericbearings Part4 Rollerbearings Part5 Potbearings Part6 Rockerbearings Part7 SphericalandcylindricalPTFEbearings Part8 Guidebearingsandrestraint

15、bearings Part9 Protection Part10 Inspectionandmaintenance Part11 Transport,storageandinstallation AnnexesAandBareinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,De

16、nmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN133710:2003(E) 4 1Scope ThisEuropeanStandardappliestotheinspectionandmaintenanceofbearingsdesignedinaccordancewithEN 13371,whenusedi

17、ntheconstructionofbridgesorstructuresrequiringsimilarbearingsystems.Itpresupposes theexistenceofguidelinesfortheregularinspectionofthewholestructureduringitsservicelife. Itmayalsobeusedasappropriatefortheinspectionandmaintenanceofbearingsdesignedand/orinstalledbefore theintroductionofthisEuropeanSta

18、ndard. ThisEuropeanStandardspecifiestheaspectsofeachtypeofbearingthatshallbeinspectedandrecorded.Itdoes notspecifypermissiblevalues.ForthesereferenceshallbemadetotherelevantpartsofthisEuropeanStandard andtothedrawingsanddesigncalculationsforthebearingandthestructure. NOTE1 Attentionisdrawntotheparti

19、cularnecessityforregularinspectionandmaintenanceofbearingsas,withoutsuch inspectionandmaintenance,prematurefailuremayoccur. NOTE2 NationalregulationsmayexistonthesubjectscoveredbythisEuropeanStandardand,therefore,theyprevailonit. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundated

20、reference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forund

21、atedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN13371:2000, StructuralbearingsPart1:Generaldesignrules. EN133711:1997, StructuralbearingsPart11:Transport,storageandinstallation. 3 Definitionsandsymbols ForthepurposesofthisEuropeanStandardthefollowingtermsandd

22、efinitionsapply: 3.1 inspection regularobservation,notingandreporting 3.1.1 regularinspection closevisualinspectionwithoutmeasurements,spacedatequal,resonablyfrequent,intervals 3.1.2 principalinspection similartoaregularinspectionbutinmoredetailandincludingprecisemeasurement 3.2 maintenance servicin

23、gandreplacement 3.2.1 servicing cleaning,greasing,paintingandrepairofminordefects 3.2.2 replacement renewalofmajorpartsofabearingoroftheentirebearingEN133710:2003(E) 5 3.3 Symbols h protrusionofPTFE v x displacementinthemaindirectionofmovementofthestructure v y displacementtransversetothemaindirecti

24、onofmovementofthestructure a x angleofrotationinthemaindirectionofmovementofthestructure a y angleofrotationtransversetothemaindirectionofmovementofthestructure s 1 clearancetoallowrotationalmovement s 2 clearancebetweenverticalsurfaces s 3 clearancebetweenguidesurfaces s 4 clearanceofverticalmoveme

25、ntsofthestructure 4 Generalrequirementsforregularandprincipalinspections Theconditionofthebearingsinastructureshallbecheckedvisually,atleastasoftenastheregularinspectionof thestructure(orfailingthisatthetimeoftheprincipalinspection)oriftheconstructionworkisnotsubjecttoregular inspection,byaninspecto

26、r,withcompetentknowledgeofbearings,atleastasfrequentlyasthestructureis inspected.Ifitisnecessarytoenabletheinspectortodothis,bearingsshallbecleanedpriortotheinspection. Thebearingsshouldbeinspectedafteranaccidentalcollisionwiththebridge,suchasanoverhighvehicle collidingwiththedeck,orafteranexception

27、alevent,suchasanearthquake. Shouldtheinspectorencounterconditionsthatheisunabletoexplainordetectfully,orforwhichheisunableto recommendremedialaction,heshallseek,ifneedbe,theassistanceofaspecialexpertbeforecompletinghis report. Dependingontheoutcomeoftheinspectiononeofthefollowingstepsshallbeundertak

28、en: noaction; furthermeasurementsofthemovementcapacity(underextremetemperatures,differentloads,etc.); furthertestprocedures; repair(correctionsoftheposition,replacementoftheentirebearingorofparts,renewalorsupplementofthe protectionagainstcorrosionorunderneathpackingwithmortar,etc.). 5 Regularinspect

29、ion Intheregularinspectionthefollowingpropertiesshallbechecked: a) sufficientcapacityforresidualmovementwithrespecttothetypeofthebearing,takingintoaccountthe temperatureofthestructure; b) visibledefects: cracks; incorrectposition; unforeseenmovementsanddeformations;EN133710:2003(E) 6 c) conditionofb

30、eddingandfixing; d) conditionofcorrosionprotection,dustprotectionandseals; e) conditionofslidingandrollingsurfaces; f) visibledefectsofadjoiningstructuralparts. Theresultsshallberecorded.AnexampleisshowninannexB.4.Thereportshallbefiledwithplansanddrawings ofthestructure. Incaseofvisibledefectsordama

31、gewhicharelikelytoaffectthefunction,checksaccordingtoclause6shallbe carriedout. 6 Principalinspection 6.1General Principalinspectionsshallbecarriedoutatlessfrequentintervalsthanregularinspections(seeA.5)andwill normallyreplaceoneofthese.Theyareintendedtoresultinapreciserecordoftheconditionofthebeari

32、ngand,if properlyinterpretedandactedupon,willensurethatthebearingwillcontinuetofunctionasintendeduntilthenext principalinspection. Itisrecommendedtocarryoutthefirstprincipalinspectionwithinoneyearofthestructurebeingputintoservice andtheresultscomparedwiththedetailsrecordedinaccordancewithclause7ofEN

33、133711:1997. Theprincipalinspectionshallincludeallthepointscoveredbytheregularinspectionbutinmoreprecisedetail. Pointsofparticularimportanceforeachtypeofbearingaregivenbelow.Figuresarealsoincludedshowingthe maindimensionstoberecordedforeachtypeofbearing.Theseshallbemeasuredwithdeadloadonlyonthe stru

34、cturewheneverpossible.Ifthisisnotfeasibledetailsoftheliveloadingshallbeprovidedaspreciselyas possible. Theobtainedmeasurementsshallbecomparedwiththedesignvalues.Hencethecapacityofthebearingforall anticipatedfuturemovementsandloadsshallbechecked. Typenumbersin6.2correspondtothetypenumbersinEN13371. 6

35、.2Specificchecksforthedifferenttypesofbearings 6.2.1 SlidingpartofbearingswithPTFEelements(seeFigure1) ForthebearingsNo.1.3,1.4,1.5,1.7,1.8,2.2,2.3,3.3,3.4,3.5,4.2,4.3,5.2,5.3,6.2,7.3,7.4theprotrusion h betweentheslidingsurfaceandtheplatecontainingthePTFEsheetshallbemeasuredatsufficientpointstofind

36、theminimumvalue; v x ,v y and h toberecorded. Wherevisibletheconditionoftheslidingsurfaceanditsfixingsshallbereported. Figure1SlidingpartofcombinedbearingsEN133710:2003(E) 7 6.2.2 Elastomericbearingsandtheelastomericpartofcombinedbearings(seeFigure2) ForthebearingsNo.1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8t

37、hevisiblesurfacesshallbecheckedforcracksand excessivedeformations.Ifcracksextendtotheinnersteelplatesofthebearing,thereportshallinformtheowners ofthissituationandoftheriskofcorrosionandfailureoftheproduct.Moreover,considerationshallbegivento replacementofthebearing. a x , a y ,v x and v y toberecord

38、ed. Figure2Elastomericbearing 6.2.3 Singlerollerbearings(seeFigure3) ForthebearingsNo.6.1and6.2theconditionoftherollingsurfaces,thecontinuityorotherwiseofthelineof contact,slopingmovement,rotationabouttheverticalaxis,offsetinrollingplane,therelativepositionsofthetop andbottomplatesv x andtherotation

39、angle a shallberecorded.Theconditionofanyguidingdevicesshallbe reported. Figure3Rollerbearing 6.2.4 Potbearingsandthepotpartofcombinedbearings(seeFigure4) ForthebearingsNo.2.1,2.2and2.3 s 1min and s 1max shallberecorded.EN133710:2003(E) 8 Figure4Potbearing 6.2.5 Rockerbearings,pointrockerbearings,ro

40、ckerpartofcombinedbearings(seeFigure5) ForthebearingsNo.4.1,4.2,4.3,5.1,5.2,5.3 s 1min,max anda shallberecorded.Theconditionoftherocking surfaces,thecontinuityorotherwiseofthelineofcontactandtherelativepositionsofthetopandbottomplates shallberecorded. Pointrocker Linearrocker Figure5Rockerbearings 6

41、.2.6 Sphericalbearingsandthesphericalpartofcombinedbearings,cylindricalbearings(seeFigures6 and7) ForthebearingsNo.3.1,3.2,3.3.,3.4,3.5 a max and h min shallberecorded. ForthebearingsNo.7.1,7.2,7.3,7.4 h ,v and a shallberecorded.Anytendencytorotateinadirectionotherthan thedesigndirectionshallberepor

42、ted. Figure6SphericalorcylindricalbearingEN133710:2003(E) 9 Figure7Sideviewofacylindricalbearing 6.2.7 Guidebearingsandguidingelementsofotherbearings(seeFigure8) ForthebearingsNo.8.1,8.2 s 3min. ,s 3max. ,s 4u ,s 4o ,h 1 and h 2 (themaximumclearancebetweenguidesurfaces) shallberecordedwherepossible.

43、 Figure8Guidebearing 6.2.8 Specialbearings Anyspecialbearingshallbecheckedinaccordancewithcriterialaiddownbythedesignersofthestructureandthe bearing.EN133710:2003(E) 10 7 Servicingandreplacement Replacementofbearingsorofpartsofbearingsshallbecarriedoutavoidinganydamagetothestructure. Jacksshallbeappliedonlyatintendedloadpoints.Permissiblejackingforcesandintendedjackingdistancesshall notbeexceeded.Thestructureshallbepreventedfromfallingbackincaseofjack