1、BRITISH STANDARDBS EN 1337-3:2005Structural bearings Part 3: Elastomeric bearingsThe European Standard EN 1337-3:2005 has the status of a British StandardICS 91.010.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g5
2、3g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 1337-3:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006ISBN 0 580 49850 6National forewordThis British Standard was published by BSI. It is
3、the UK implementation of EN 1337-3:2005. 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 its preparation was entrusted to Technical Comm
4、ittee 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 application.Compliance with a British Standard cann
5、ot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1337-3March 2005ICS 91.010.30English versionStructural bearings - Part 3: Elastomeric bearingsAppareils dappui structuraux - Partie 3: Appareils dappui
6、en lastomreLager im Bauwesen - Teil 3: ElastomerlagerThis European Standard was approved by CEN on 4 June 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alter
7、ation. 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, French, German). A version in any other language made by translat
8、ionunder 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, Denmark, Estonia, Finland, France,Germany, Greece, Hungary,
9、 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 NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart
10、, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1337-3:2005: EEN 1337-3:2005 (E) 2 Contents Foreword5 1 Scope 6 2 Normative references 6 3 Terms, definitions, symbols and abbreviations .7 3.1 Terms and defin
11、itions .7 3.2 Symbols 7 3.2.1 Latin upper case letters 7 3.2.2 Latin lower case letters .9 3.2.3 Greek letters.9 3.2.4 Subscripts 10 3.3 Abbreviations.10 4 Requirements.11 4.1 General11 4.2 Functional requirements.11 4.3 Performance requirements for complete bearings 11 4.3.1 Shear modulus.11 4.3.2
12、Shear bond strength13 4.3.3 Compression stiffness 13 4.3.4 Resistance to repeated loading in compression15 4.3.5 Static rotation capability .15 4.3.6 Ozone resistance .16 4.3.7 PTFE / elastomer shear bond strength16 4.4 Material properties.17 4.4.1 General17 4.4.2 Physical and mechanical properties
13、of elastomer.17 4.4.3 Steel reinforcing plates .18 4.4.4 Sliding surfaces .19 5 Design rules .20 5.1 General20 5.2 Design values of actions.21 5.3 Laminated bearings.21 5.3.1 Types of laminated bearings 21 5.3.2 Sizes and shapes of laminated bearings 21 5.3.3 Basis of design 24 5.4 Plain pad bearing
14、s.31 5.5 Strip bearings.32 EN 1337-3:2005 (E) 3 5.5.1 Geometry 32 5.5.2 Loads 32 5.5.3 Shear strain 33 5.5.4 Stability criteria33 5.5.5 Deformations and maximum forces exerted on the structure33 5.6 Sliding elastomeric bearings33 6 Manufacturing tolerances.33 6.1 Plan size .33 6.2 Thickness of elast
15、omer layers .33 6.2.1 Internal layer 34 6.2.2 External layer on top and bottom surfaces for laminated bearings.34 6.2.3 Tolerances of total thickness of bearing system .34 6.2.4 Edge cover thickness for laminated bearings35 6.3 Reinforcing steel plate for laminated bearings 35 7 Special requirements
16、 35 7.1 Plinth of the structure - Tolerances of the contact area with the structure 35 7.1.1 General35 7.1.2 Surface conditions 35 7.1.3 Surface flatness .36 7.1.4 Surface level.36 7.2 Positive means of location .36 7.3 Marking and labelling36 8 Conformity evaluation.36 8.1 General36 8.2 Control of
17、the construction product and its manufacture 37 8.2.1 General37 8.2.2 Initial type tests37 8.2.3 Routine testing.37 8.2.4 Control of raw materials37 8.2.5 Audit-testing.38 8.3 Sampling.38 8.3.1 Samples for audit testing38 8.4 Non-compliance with the technical specification 38 9 Criteria for in-servi
18、ce inspection .41 Annex A (normative) Elliptical bearings42 Annex B (normative) Rotational limitation factor.43 Annex C (normative) Maximum design strain in laminated bearings 44 Annex D (informative) Shear modulus comments 45 Annex E (informative) Typical bearing schedule .46 Annex F (normative) Sh
19、ear modulus test method .49 Annex G (normative) Shear bond test method.53 EN 1337-3:2005 (E) 4 Annex H (normative) Compression test method 57 Annex I (normative) Repeated Loading Compression Test Method 61 Annex J (normative) Eccentric loading test method64 Annex K (normative) Restoring Moment Test
20、Method.68 Annex L (normative) Resistance to ozone test method.71 Annex M (normative) Shear bond test method for PTFE/elastomer interface.76 Annex N (normative) Factory production control 80 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Prod
21、ucts Directive83 Bibliography 94 EN 1337-3:2005 (E) 5 Foreword This document (EN 1337-3:2005) 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 national standard, either by publica
22、tion of an identical text or by endorsement, at the latest by September 2005, and conflicting national standards shall be withdrawn at the latest by December 2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and sup
23、ports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This European Standard EN 1337: “Structural bearings” consists of the following 11 parts: Part 1 General design rules Part 2 Sliding elements
24、Part 3 Elastomeric bearings Part 4 Roller bearings Part 5 Pot bearings Part 6 Rocker bearings Part 7 Spherical and cylindrical PTFE bearings Part 8 Guide bearings and restrain bearings Part 9 Protection Part 10 Inspection and maintenance Part 11 Transport, storage, and installation According to the
25、CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
26、rg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1337-3:2005 (E) 6 1 Scope This part of EN 1337 applies to elastomeric bearings with or without complementary bearing devices to extend their field of use such as flat sliding eleme
27、nts covered by EN 1337-2 or sliding surface described in 4.4.4, as used in bridge structures or any other structure with comparable support conditions. This part of EN 1337 applies to elastomeric bearings with dimensions in plan up to (1200 x 1200) mm and does not cover elastomeric bearings made wit
28、h other elastomers materials than those specified in 4.4.1. It applies to laminated bearings types A, B, C, laminated sliding bearings types E and D, plain pad and strip bearings type F. This part deals with bearings for use in operating temperatures ranging from 25 C to + 50 C and for short periods
29、 up to + 70 C. It is recognised that the air temperature in some regions of Northern Europe is lower than 25 C. In this case of very low operating temperature (down to 40 C), it is essential that bearing characteristics comply also with the shear modulus at very low temperature (see 4.3.1.3. and ann
30、ex F) 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1337-1:2000, Stru
31、ctural bearings - Part 1: General design rules. EN 1337-2:2004, Structural bearings - Part 2: Sliding elements. prEN 1337-8, Structural bearings - Part 8: Guide bearings and restrain bearings. EN 1337-9:1997, Structural bearings - Part 9: Protection. EN 1337-10; Structural Bearings - Part 10: Inspec
32、tion and maintenance. EN 1337-11; Structural bearings - Part 11: Transport, storage and installation.EN 10025-1, Hot rolled products of structural steels - Part 1: General technical delivery conditions. EN 10025-2, Hot rolled products of structural steels - Part 2: Technical delivery conditions for
33、non-alloy structural steels ISO 34-1, Rubber, vulcanized or thermoplastic - Determination of tear strength - Part 1: Trouser, angle and crescent test pieces. ISO 37, Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties. ISO 48, Rubber, vulcanized or thermoplastic -
34、 Determination of hardness (hardness between 10 IRHD and 100 IRHD). ISO 188, Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests. ISO 815, Rubber, vulcanized or thermoplastic - Determination of compression set at ambient, elevated or low temperatures. ISO 1431-1, Rubbe
35、r, vulcanized or thermoplastic - Resistance to ozone cracking - Part 1: Static strain testing. EN 1337-3:2005 (E) 7 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1337-1:2000 and the following apply.
36、3.1.1 batch individual mix or blend of mixes of elastomer, when used for bearing production or a number of identical components produced at the same machine setting 3.1.2 elastomer macromolecular material, which returns to approximately its initial dimensions and shape after substantial deformation
37、by a weak stress and release of stress. In this part of the standard it defines the compound that will be used for the production of a rubber part or parts. 3.1.3 elastomeric bearing bearing comprising a block of vulcanised elastomer that may be reinforced with one or more steel plates 3.1.4 laminat
38、ed bearing elastomeric bearing reinforced internally with one or more steel plates, chemically bonded during vulcanisation 3.1.5 plain pad bearing elastomeric bearing consisting of a solid block of vulcanised elastomer without internal cavities 3.1.6 sliding elastomeric bearing laminated bearing wit
39、h a PTFE sheet, at top surface, which may be vulcanised directly onto the outer layer of elastomer or fixed to a steel plate, in contact with a sliding plate 3.1.7 sliding plate component which bears on and is immediately adjacent to the top sliding surface of a bearing. It can be: a) a single piece
40、 of austenitic steel, b) a thin plate of austenitic steel fixed to a mild steel supporting plate, c) a thin plate of austenitic steel bonded to an elastomeric interlayer which is vulcanised to a mild steel supporting plate. 3.1.8 strip bearing plain pad bearing for which the length is at least ten t
41、imes the width 3.1.9 top sliding surface polytetrafluoroethylene surface vulcanised on to an elastomeric bearing, in contact with the sliding plate which allows relative translatory displacement 3.2 Symbols For the purposes of this document, the following symbols apply. 3.2.1 Latin upper case letter
42、s A Overall plan area of elastomeric bearing .mm EN 1337-3:2005 (E) 8 A Effective plan area of laminated bearing (area of the steel reinforcing plates) mm ArReduced effective plan area of elastomeric bearing .mm CcCompressive stiffness of a bearing N/mm D Overall diameter of circular bearingmm D Eff
43、ective diameter of circular laminated bearing.mm E Modulus of elasticityMPa EbBulk modulus MPa EcsIntersecting compression modulus .MPa EdDesign load effects Fxd, VydHorizontal design forces .N: kN FxyMaximum resultant horizontal force obtained by vectorial addition of vxand vyN: kN FzdVertical desi
44、gn force .N: kN G Nominal value of conventional shear modulus of elastomeric bearing MPa GdynConventional shear modulus of elastomeric bearing under dynamic actions MPa GeShear modulus of elastomer.MPa GgConventional shear modulus of elastomeric bearing determined by testing MPa KceFactor for strain
45、 due to compressive load for elliptical bearing KdeFactor for vertical deflection for load for elliptical bearing KseFactor for restoring moment for elliptical bearing KfFriction factor KhFactor for induced tensile stresses in reinforcing plate KLType loading factor KmMoment factor Kp Stress correct
46、ion factor for the steel reinforcing plates KrRotation factor KsFactor for restoring moment MeExperimental value of restoring moment N x mm: kN x m MdDesign value of restoring momentN x mm: kN x m RdDesign value of resistance EN 1337-3:2005 (E) 9 RxyResultant of the forces resisting to translatory m
47、ovement S Shape factor S1Shape factor for the thickest layers SdDesign value of an internal force or moment of a respective vector of several internal forces or moments ToAverage total initial thickness of bearing ignoring top and bottom covers .mm TbTotal nominal thickness of bearing .mm TboMean to
48、tal initial thickness of bearing.mm TeTotal nominal thickness of elastomer .mm Tq The average total initial thickness of elastomer in shear, including the top and bottom covers when these are not restrained for shearing. .mm 3.2.2 Latin lower case letters a Overall width of bearing (shorter dimensio
49、n of rectangular bearing)mm aeMinor axis of elliptic bearing a Effective width of laminated bearing (width of the steel reinforcing plates)mm b Overall length of a bearing (longer dimension of a rectangular bearing) .mm beMajor axis of elliptical bearing b Effective length of a laminated bearing (length of the steel reinforcing plates)mm c compression stiffness .N/mm fyYield stress of steel.N/mm lpForce free perimeter of elastomeric bearing n Number of elastomer layers t Thickness of plain pad or strip bearing.mm teEffective thickness of elastomer in compressio
