1、ICS 91.010.30Structural bearingsPart 2: Sliding elementsEnglish version of DIN EN 1337-2Lager im Bauwesen Teil 2: GleitteileEuropean Standard EN 1337-2 : 2004 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 167 Structu
2、ral bearings (Secretariat: Italy).The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Buildingand Civil Engineering Standards Committee), Technical Committee 00.91.00 Lager im Bauwesen.AmendmentsThis standard differs from the July edition as follows:a) the desig
3、n is now based on characteristic values.b) some tables have been amended;c) references have been updated.Previous editionDIN EN 1337-2: 2001-07.DEUTSCHE NORM July 2004DIN EN 1337-2 No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berli
4、n. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).SupersedesJuly 2001 edition.Normenausschuss Bauwesen (NABau) im DINEnglish price group 21www.din.dewww.beuth.de10.04 9579359Continued overleaf.Document comprises 68 pages.English versionICS
5、91.010.30Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr NormungStructural bearingsPart 2: Sliding elements 2004. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN nat
6、ional members.Ref. No. EN 1337-2 : 2004 EAppareils dappui structuraux Partie 2: Elments de glissementLager im Bauwesen Teil 2:GleitteileThis European Standard was approved by CEN on 2004-01-02.CEN members are bound to comply with the CEN/CENELEC Internal Regula-tions which stipulate the conditions f
7、or giving this European Standard the statusof a national standard without any alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versio
8、ns (English, French, Ger-man). A version in any other language made by translation under the responsi-bility of a CEN member into its own language and notified to theManagement Centre has the same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Cypr
9、us,the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, theNetherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,Switzerland, and the United Kingdom.|March 2004EN 1337-2Supersedes EN 1337-2 :
10、 2000.Page 2 EN 1337-2 : 2004 Contents Page Foreword3 Introduction .3 1 Scope 4 2 Normative references 4 3 Terms and definitions, symbols and abbreviations.5 4 Functional requirements.8 5 Material properties.10 6 Design requirements .16 7 Manufacturing, assembly and tolerances .25 8 Conformity evalu
11、ation.29 9 Installation 32 10 Criteria for in-service inspection32 Annex A (informative) Reduced area for sliding elements .33 Annex B (informative) Coefficient of friction for dimpled PTFE sheets 35 Annex C (informative) Method for calculating the deformation of backing plates attached to concrete
12、36 Annex D (normative) Test methods for friction37 Annex E (normative) Hard chromium plated surfaces Ferroxyl test 48 Annex F (normative) Thickness measurement of the anodized surfaces.50 Annex G (normative) Lubricant Oil separation test52 Annex H (normative) Oxidation stability of lubricant 55 Anne
13、x J (normative) Austenitic steel sheets adhesive Lap shear test 61 Annex K (normative) Factory production control (FPC) .64 Annex L (informative) Audit testing.66 Bibliography 66 Page 3 EN 1337-2 : 2004 Foreword This document has been prepared by Technical Committee CEN /TC 167, “Structural bearings
14、“, the Secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2004, and conflicting national standards shall be withdrawn at the latest by September 2004. T
15、his document supersedes EN 1337-2 : 2000. European Standard EN 1337 “Structural bearings”, consists of the following 11 Parts: Part 1: General design rules Part 2: Sliding elements Part 3: Elastomeric bearings Part 4: Roller bearings Part 5: Pot bearings Part 6: Rocker bearings Part 7: Spherical and
16、 cylindrical PTFE bearings Part 8: Guide bearings and restrain bearings Part 9: Protection Part 10: Inspection and maintenance Part 11: Transport, storage and installation Annexes A, B, C and L are informative; Annexes D, E, F, G, H, J and K are normative. In accordance with the CEN/CENELEC Internal
17、 Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the N
18、etherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom. Introduction This standard considers a minimum operating temperature of 35 C. An extension down to 40 C will be considered in a future amendment. Applications beyond the range of temperature
19、 given in clause 1 need special consideration not covered by this standard. Characteristics and requirements given in this standard do not apply in such cases. Page 4 EN 1337-2 : 2004 1 Scope This European Standard specifies the characteristics for the design and manufacture of sliding elements and
20、guides which are not structural bearings but only parts of them for combination with structural bearings as defined in other Parts of this 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 mul
21、tiple PTFE sheets less than 75 mm or greater than 1 500 mm, or with effective bearing temperatures less than 35 C or greater than 48 C are outside the scope of this European Standard. Sliding elements for use as temporary devices during construction, for example during launching of the superstructur
22、e, are also outside the scope of this European Standard. In this standard the specification is also given for curved sliding surfaces which are not part of separate sliding elements but which are incorporated in cylindrical or spherical PTFE bearings as per EN 1337. NOTE The general principles detai
23、led in this European Standard may be applied for sliding elements outside this scope, but their suitability for the intended use should be proven. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references
24、 are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the late
25、st edition of the publication referred to applies (including amendments). EN 1337-1 : 2000, Structural bearings Part 1: General design rules EN 1337-7, Structural bearings Part 7: Spherical and cylindrical PTFE bearings EN 1337-10 : 2003, Structural bearings Part 10: Inspection and maintenance EN 13
26、37-11 : 1997, Structural bearings Part 11: Transport, storage and installation EN 10025, Hot rolled products of non-alloy structural steels Technical delivery conditions EN 10088-2, Stainless steels Part 2: Technical delivery conditions for sheet/plate and strip for general purposes EN 10113-1, Hot-
27、rolled products in weldable fine grain structural steels Part 1: General delivery conditions EN 10137-1, Plates and wide flats made of high yield strength structural steels in the quenched and tempered or precipitation hardened conditions Part 1: General delivery conditions EN 10204, Metallic produc
28、ts Types of inspection documents ENV 1992-1-1, Eurocode 2: Design of concrete structures Part 1-1: General rules and rules for buildings ENV 1993-1-1, Eurocode 3: Design of steel structures Part 1-1: General rules and rules for buildings EN ISO 527-1, Plastics Determination of tensile properties Par
29、t 1: General principles (ISO 527-1 : 1993 including Corr 1 : 1994) EN ISO 527-3, Plastics Determination of tensile properties Part 3: Test conditions for films and sheets (ISO 527-3:1995) Page 5 EN 1337-2 : 2004 EN ISO 1183 (all Parts), Plastics Methods for determining the density of non-cellular pl
30、astics EN 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) EN ISO 4287, Geometrical product specifications (GPS) Surface textute: Profile method Terms, definitions and surface texture
31、 parameters (ISO 4287 : 1997) EN ISO 6506 (all Parts), Metallic materials Brinell hardness test EN ISO 6507-1, Metallic materials Vickers hardness test Part 1: Test method (ISO 6507-1 : 1997) EN ISO 6507-2, Metallic materials Vickers hardness test Part 2: Verification of testing machines (ISO 6507-2
32、 : 1997) ISO 1083, Spheroidal graphite cast iron Classification ISO 2137, Petroleum products Lubricating grease and petrolatum Determination of cone penetration ISO 2176, Petroleum products Lubricating grease Determination of dropping point ISO 3016, Petroleum products Determination of pour point IS
33、O 3522, Cast aluminium alloys Chemical composition and mechanical properties ISO 3755, Cast carbon steels for general engineering purposes prEN ISO 6158, Metallic coatings Electrodeposited coatings of chromium for engineering purposes (ISO/DIS 6158 : 2002) 3 Terms and definitions, symbols and abbrev
34、iations 3.1 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1.1 backing plate Metallic component which supports sliding materials. 3.1.2 coefficient of friction Ratio of lateral force (resisting force Fx) to the normal force Fz. 3.1.3 co
35、mposite material Sliding material used in guides. 3.1.4 guide Sliding element which restrains a sliding bearing from moving in one axis. 3.1.5 hard chromium surface Steel backing element plated with a hard chromium layer. 3.1.6 lubricant Special grease used to reduce the friction and wear in the sli
36、ding surfaces. 3.1.7 mating surface Hard smooth metallic surface against which the PTFE or composite materials slide. Page 6 EN 1337-2 : 2004 3.1.8 polytetrafluoroethylene (PTFE) A thermoplastic material used for its low coefficient of friction. 3.1.9 sliding surface Combination of a pair of flat or
37、 curved surfaces of different materials which allow relative displacement. 3.1.10 sliding materials Materials which form sliding surfaces. 3.2 Symbols The most frequently occurring symbols are defined below. Those that are local, and unique to a particular clause, are defined at their first appearan
38、ce. 3.2.1 Latin upper case letters A contact area of sliding surfacemm2E modulus of elasticity GPa F action; force .N; kN G permanent action .N; kN L diameter of the circumscribing circle of single or multiple PTFE sheets (see figures 3, 4 and 5); length of PTFE or composite materials sheets of guid
39、es (see figure 6) .mm M bending moment N mm; kN m N axial force; force normal to principal bearing surface .N; kN Ry5iaverage surface roughness .m S shape factor T temperature .C V transverse or shear force N; kN 3.1.1 Latin lower case letters a smallest dimension of PTFE sheets;mm minor side of rec
40、tangular plates or sheets mm b major side of rectangular plates or sheets mm c clearance between sliding components (difference in width between key and keyway) .mm d diameter, diagonal .mm e eccentricity .mm f nominal compressive strength .MPa h protrusion of PTFE sheet from its recess.mm n number
41、of cycles s sliding distance mm t thickness, time .mm; s; h u perimeter of PTFE sheet mm v sliding speed mm/s Page 7 EN 1337-2 : 2004 w deformation x longitudinal axis y transverse axis z axis normal to the principle bearing surface 3.1.2 Greek letters angle.rad partial safety factor elongation at b
42、reak % z maximum deviation of plane or curved sliding surfaces from theoretical surface mm ratio, coefficient coefficient of friction 1initial coefficient of friction; i.e. the maximum coefficient of friction occurring during the first movement at the start or restart of any test Tmaximum coefficien
43、t of friction during a given temperature phase mass density .kg/m3 normal pressure MPa 3.1.3 Subscripts a average b backing plate c concreteCM composite materials d design dyn dynamic G permanent action g geometrical k characteristic M material max maximum min minimum n cycle number p PTFE pl preloa
44、d Q variable action R resistance r reduced S internal forces and moments from actions s static t tension T temperature Page 8 EN 1337-2 : 2004 u ultimate x, y, z coordinates 3.2 Abbreviations CM composite material PTFE polytetrafluoroethylene NDP nationally determined parameters 4 Functional require
45、ments NOTE 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 not sufficient to ensure that these components will have
46、the required characteristics. The performance of the sliding elements and guides is deemed to be satisfactory if standardized specimens shown in Annex D of specified material combinations meet the requirements of this clause when tested as specified in specific friction tests described in Annex D. 4
47、.1 Sliding elements and guides incorporating sliding surfaces with PTFE sheets 4.1.1 Requirements in short-term friction tests The 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-term tests of
48、PTFE sheets in combination with hard chromium plating, austenitic steel or aluminium alloy used for curved or plane sliding surfaces Test See Annex D Temperature Hard chromium or austenitic steel Aluminium alloy s,1dyn,1s,Tdyn,Ts,1dyn,1s,Tdyn,TC +21 C 0,012 0,005 0,018 0,008 D 35 C 0,035 0,025 0,053
49、 0,038 E 0 C 0,018 0,012 0,027 0,018 E 35 C 0,018 0,012 0,027 0,018 NOTE s,1static coefficient of friction at the first cycle. dyn,1dynamic coefficient of friction at the first cycle. s,Tstatic coefficient of friction at subsequent cycles. dyn,Tdynamic coefficient of friction at subsequent cycles. (see also Annex D, figures D.4 and D.6) 4.1.2 Requirements in long-term friction tests The coefficients of friction of the slid
