1、BRITISH STANDARDBS EN 1337-2:2004Structural bearings Part 2: Sliding elementsThe European Standard EN 1337-2:2004 has the status of a British StandardICS 91.010.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48
2、g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 1337-2:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006ISBN 0 580 49849 2National forewordThis British Standard was published by BSI. It is the
3、UK implementation of EN 1337-2:2004. It supersedes BS EN 1337-2:2001 which is withdrawn. It partially supersedes BS 5400-9-1:1983 and BS 5400-9-2:1983 which will remain current until the remaining parts of the BS EN 1337 series have been published, the last part being Part 8.The UK participation in
4、its preparation was entrusted to Technical Committee B/522, Structural bearings.A list of organizations represented on B/522 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct appl
5、ication.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1337-2March 2004ICS 91.010.30 Supersedes EN 1337-2:2000English versionStructural bearings - Part 2: Slid
6、ing elementsAppareils dappui structuraux - Partie 2: Elments deglissementLager im Bauwesen - Teil 2: GleitteileThis European Standard was approved by CEN on 2 January 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europea
7、nStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, Fren
8、ch, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic
9、, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUR
10、OPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1337-2:2004: EEN 1337-2:2004 (E)2ContentspageForeword3Introduction .41 Scope 52 Normative referenc
11、es 53 Terms and definitions, symbols and abbreviations.64 Functional requirements .95 Material properties.116 Design requirements .177 Manufacturing, assembly and tolerances .288 Conformity evaluation .319 Installation 3410 Criteria for in-service inspection34Annex A (informative) Reduced area for s
12、liding elements35Annex B (informative) Coefficient of friction for dimpled PTFE sheets.37Annex C (informative) Method for calculating the deformation of backing plates attached to concrete 38Annex D (normative) Test methods for friction39Annex E (normative) Hard chromium plated surfaces - Ferroxyl t
13、est .50Annex F (normative) Thickness measurement of the anodized surfaces.52Annex G (normative) Lubricant - Oil separation test.54Annex H (normative) Oxidation stability of lubricant 57Annex J (normative) Austenitic steel sheets adhesive - Lap shear test .63Annex K (normative) Factory Production Con
14、trol (FPC).66Annex L (informative) Audit testing.69Bibliography 70EN 1337-2:2004 (E)3ForewordThis document (EN 1337-2:2004) has been prepared by Technical Committee CEN /TC 167, “Structural bearings“,the secretariat of which is held by UNI.This European Standard shall be given the status of a nation
15、al standard, either by publication of an identical text orby endorsement, at the latest by September 2004, and conflicting national standards shall be withdrawn at thelatest by September 2004.This document supersedes EN 1337-2:2000.This European Standard EN 1337 “Structural bearings”, consists of th
16、e following 11 Parts:Part 1: General design rulesPart 2: Sliding elementsPart 3: Elastomeric bearingsPart 4: Roller bearingsPart 5: Pot bearingsPart 6: Rocker bearingsPart 7: Spherical and cylindrical PTFE bearingsPart 8: Guide bearings and restrain bearingsPart 9: ProtectionPart 10: Inspection and
17、maintenancePart 11: Transport, storage and installationAnnexes A, B, C and L are informative. Annexes D, E, F, G, H, J and K are normative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard:
18、Austria, Belgium, Cyprus, Czech Republic, Denmark,Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EN 1337-2:2004 (E)4Introduction
19、This standard considers a minimum operating temperature of 35C.An extension down to 40C will be considered in a future amendment.Applications beyond the range of temperature given in clause 1 need special consideration not covered by thisstandard. Characteristics and requirements given in this stand
20、ard do not apply in such cases.EN 1337-2:2004 (E)51 ScopeThis European Standard specifies the characteristics for the design and manufacture of sliding elements andguides which are not structural bearings but only parts of them for combination with structural bearings as definedin other Parts of thi
21、s European Standard.Suitable combinations are shown in Table 1 of EN 1337-1:2000.Sliding surfaces with a diameter of the circumscribing circle of single or multiple PTFE sheets less than 75 mm orgreater than 1500 mm, or with effective bearing temperatures less than 35C or greater than 48C are outsid
22、e thescope of this European Standard.Sliding elements for use as temporary devices during construction, for example during launching of thesuperstructure, are also outside the scope of this European Standard.In this standard the specification is also given for curved sliding surfaces which are not p
23、art of separate slidingelements but which are incorporated in cylindrical or spherical PTFE bearings as per EN 1337.NOTE The general principles detailed in this European Standard may be applied for sliding elements outside this scope,but their suitability for the intended use should be proven.2 Norm
24、ative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of an
25、y of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 1337-1:2000, Structural bearings - Part 1: General design rulesEN 1337-7, Structural
26、 bearings - Part 7: Spherical and cylindrical PTFE bearingsEN 1337-10:2003, Structural bearings - Part 10: Inspection and maintenanceEN 1337-11:1997, Structural bearings - Part 11: Transport, storage and installationEN 10025, Hot rolled products of non-alloy structural steels Technical delivery cond
27、itionsEN 10088-2, Stainless steels Part 2: Technical delivery conditions for sheet/plate and strip for general purposesEN 10113-1, Hot-rolled products in weldable fine grain structural steels - Part 1: General delivery conditionsEN 10137-1, Plates and wide flats made of high yield strength structura
28、l steels in the quenched and tempered orprecipitation hardened conditions Part 1: General delivery conditionsEN 10204, Metallic products - Types of inspection documentsENV 1992-1-1, Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildingsENV 1993-1-1, Eurocode 3: D
29、esign of steel structures - Part 1-1: General rules and rules for buildingsEN ISO 527-1, Plastics Determination of tensile properties Part 1: General principles (ISO 527-1:1993 includingCorr 1:1994)EN ISO 527-3, Plastics Determination of tensile properties Part 3: Test conditions for films and sheet
30、s (ISO527-3:1995)EN 1337-2:2004 (E)6EN ISO 1183 (all Parts), Plastics - Methods for determining the density of non-cellular plasticsEN ISO 2039-1, Plastics - Determination of hardness - Part 1: Ball indentation method (ISO 2039-1:2001)EN ISO 2409, Paints and varnishes - Cross-cut-test (ISO 2409:1992
31、)EN ISO 4287, Geometrical product specifications (GPS) Surface textute: Profile method Terms, definitions andsurface texture parameters (ISO 4287:1997)EN ISO 6506 (all Parts), Metallic materials Brinell hardness testEN ISO 6507-1, Metallic materials Vickers hardness test - Part 1: Test method (ISO 6
32、507-1:1997)EN ISO 6507-2, Metallic materials - Vickers hardness test - Part 2: Verification of testing machines (ISO 6507-2:1997)ISO 1083, Spheroidal graphite cast iron - ClassificationISO 2137, Petroleum products - Lubricating grease and petrolatum - Determination of cone penetrationISO 2176, Petro
33、leum products - Lubricating grease - Determination of dropping pointISO 3016, Petroleum products - Determination of pour pointISO 3522, Cast aluminium alloys - Chemical composition and mechanical propertiesISO 3755, Cast carbon steels for general engineering purposesprEN ISO 6158, Metallic coatings
34、- Electrodeposited coatings of chromium for engineering purposes (ISO/DIS6158:2002)3 Terms and definitions, symbols and abbreviations3.1 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1.1backing platemetallic component which supports slid
35、ing materials3.1.2coefficient of frictionratio of lateral force (resisting force Fx) to the normal force Fz3.1.3composite materialsliding material used in guides3.1.4guidesliding element which restrains a sliding bearing from moving in one axis3.1.5hard chromium surfacesteel backing element plated w
36、ith a hard chromium layer3.1.6lubricantspecial grease used to reduce the friction and wear in the sliding surfaces3.1.7mating surfacehard smooth metallic surface against which the PTFE or composite materials slideEN 1337-2:2004 (E)73.1.8polytetrafluoroethylene (PTFE)a thermoplastic material used for
37、 its low coefficient of friction3.1.9sliding surfacecombination of a pair of flat or curved surfaces of different materials which allow relative displacements3.1.10sliding materialsmaterials which form sliding surfaces3.2 SymbolsThe most frequently occurring symbols are defined below. Those that are
38、 local, and unique to a particular clause,are defined at their first appearance.3.2.1 Latin upper casesA contact area of sliding surface. mm2E modulus of elasticity . GPaF action; force N; kNG permanent action N; kNL diameter of the circumscribing circle of single or multiplePTFE sheets (see Figures
39、 3, 4 and 5); length of PTFE orcomposite materials sheets of guides (see Figure 6) . mmM bending moment . N x mm; kN x mN axial force; force normal to principal bearing surface N; kNRy5iaverage surface roughness m mS shape factorT temperature CV transverse or shear force . N; kN3.2.2 Latin lower cas
40、e lettersa smallest dimension of PTFE sheets;. mmminor side of rectangular plates or sheets . mmb major side of rectangular plates or sheets . mmc clearance between sliding components (difference in width between keyand keyway) mmd diameter, diagonal mme eccentricity mmf nominal compressive strength
41、 MPah protrusion of PTFE sheet from its recess mmn number of cycless sliding distance . mmt thickness, time mm; s; hu perimeter of PTFE sheet . mmv sliding speed . mm/sEN 1337-2:2004 (E)8w deformationx longitudinal axisy transverse axisz axis normal to the principle bearing surface3.2.3 Greek letter
42、sa angle radg partial safety factord elongation at break . %D z maximum deviation of plane or curved slidingsurfaces from theoretical surface . mml ratio, coefficientm coefficient of frictionm1initial coefficient of friction; i.e. the maximum coefficient of friction occurring during the first moveme
43、ntat the start or restart of any testmTmaximum coefficient of friction during a given temperature phaser mass density . kg/m3s normal pressure MPa3.2.4 Subsciptsaaverageb backing platec concreteCM composite materialsd designdyn dynamicG permanent actiong geometricalk characteristicM materialmax maxi
44、mummin minimumn cycle numberpPTFEpl preloadQ variable actionR resistancer reducedS internal forces and moments from actionss statict tensionT temperatureEN 1337-2:2004 (E)9u ultimatex, y, z coordinates3.3 AbbreviationsCM Composite MaterialPTFE PolytetrafluoroethyleneNDP Nationally Determined Paramet
45、ers4 Functional requirementsNOTE Sliding elements and guides permit movements in plane or curved sliding surfaces with a minimum of friction.Specific verification of frictional resistance is required, as verification of mechanical and physical properties alone is notsufficient to ensure that these c
46、omponents will have the required characteristics. The performance of the sliding elements andguides is deemed to be satisfactory if standardized specimens shown in annex D of specified material combinations meet therequirements of this clause when tested as specified in specific friction tests descr
47、ibed in annex D.4.1 Sliding elements and guides incorporating sliding surfaces with PTFE sheets4.1.1 Requirements in short term friction testsThe coefficients of friction in each phase of friction testing shall not exceed the values given in Table 1.Table 1 Maximum coefficients of friction in short
48、term tests of PTFE sheets in combination with hardchromium plating, austenitic steel or aluminium alloy used for curved or plane sliding surfacesTestSee annex DTemperature Hard chromium oraustenitic steelAluminiumalloyms,1mdyn,1ms,Tmdyn,Tms,1mdyn,1ms,Tmdyn,TC + 21 C 0,012 0,005 - 0,018 0,008 -D - 35
49、 C 0,035 0,025 - 0,053 0,038 -E 0 C 0,018 0,012 - 0,027 0,018 -E - 35 C -0,018 0,012 - 0,027 0,018NOTE ms,1is the static coefficient of friction at the first cycle.mdyn,1is the dynamic coefficient of friction at the first cycle.ms,Tis the static coefficient of friction at subsequent cycles.mdyn,Tis the dynamic coefficient of friction at subsequent cycles.(see also annex D, Figures D.4 and D.6)4.1.2 Requirements in long term friction testsThe coefficients of friction of the sliding material combinations shall not exceed the values listed in
