BS EN 1337-5-2005 Structural bearings - Part 5 Pot bearings《结构轴承 第5部分 筒轴承》.pdf

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1、BRITISH STANDARDBS EN 1337-5:2005Structural bearings Part 5: Pot bearingsThe European Standard EN 1337-5:2005 has the status of a British StandardICS 91.010.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g

2、55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 1337-5:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006IS

3、BN 0 580 49851 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN 1337-5:2005. 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 be

4、ing Part 8.The UK participation in 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 a

5、re responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROP

6、ENNEEUROPISCHE NORMEN 1337-5March 2005ICS 91.010.30English versionStructural bearings - Part 5: Pot bearingsAppareils dappui structuraux - Partie 5: Appareils dappui potLager im Bauwesen - Teil 5: TopflagerThis European Standard was approved by CEN on 4 June 2004.CEN members are bound to comply with

7、 the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard 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

8、or to any CEN member.This European Standard exists in three official versions (English, French, 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 officialversio

9、ns.CEN members are the national standards bodies of 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, Switzerlan

10、d and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 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 1337-5

11、:2005: ELicensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 2 Contents page Foreword. 3 1 Scope 4 2 Normative references . 4 3 Terms, definitions, symbols and abbreviations 5 4 Functional requirements 9 5 Materials. 9 6 Design requirements 10

12、 7 Manufacturing assembly and tolerances . 20 8 Conformity evaluation 21 9 Installation . 22 10 In-service inspection 22 Annex A (normative) Internal seals. 24 Annex B (informative) Determination of compression stiffness . 29 Annex C (informative) Factory Production Control (FPC) 30 Annex D (normati

13、ve) Determination of restraint moment. 33 Annex E (normative) Long term rotation and load test. 37 Annex F (normative) Test equipment 41 Annex G (informative) Application of internal seals . 43 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction

14、Products Directive 44 Bibliography . 56 Licensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 3 Foreword This document (EN 1337-5:2005) has been prepared by Technical Committee CEN/TC 167 “Structural bearings”, the secretariat of which is held

15、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 December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. This document has been prepared under a

16、 mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive (s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The European Standard EN 1337 consists of th

17、e 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 cylindrical PTFE bearings Part 8 Guide bearings and restrain bearings Part 9 Protection Part 10 Inspection and

18、maintenance Part 11 Transport, storage and installation According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Icela

19、nd, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 4 1 Scope This part of EN 1337 specifies the requirements for the des

20、ign and manufacture of pot bearings which will be used for operating temperatures between 40 C and 50 C. This part of EN 1337 does not apply to pot bearings made with other materials than those specified in clause 5. Bearings which are subjected to rotation dgreater than 0,030 rad (see Figure 2) und

21、er the characteristic combination of actions or which incorporate elastomeric pads larger than 1500 mm in diameter are beyond the scope of this document. Depending on the climatic region where the construction work is located the bearings can be designed to one of the following classes related to mi

22、nimum operating temperatures (the minimum shade air temperatures): - 25 C or 40 C. When required to accommodate translational movements, pot bearings may be combined with sliding elements in accordance with EN 1337-2. NOTE The minimum shade air temperature for a location should be obtained from mete

23、orological data appropriate to a 120 year return period. Consideration should be given to adjustment of this temperature for height and local divergence such as frost pockets and sheltered low-lying areas if the data obtained applies to a general area rather than to a specific location. 2 Normative

24、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, Structural bearings Pa

25、rt 1: General design rules. EN 1337-2:2004, Structural bearings Part 2: Sliding elements. EN 1337-9:1997, Structural bearings Part 9: Protection. EN 1337-10, Structural bearings Part 10: Inspection and maintenance. EN 1990, Eurocode - Basis of structural design. EN 10025-1, Hot rolled products of st

26、ructural steels - Part 1: General technical delivery conditions. EN 10025-2, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels EN 10083-3, Quenched and tempered steels Part 3: Technical delivery conditions for boron steels. EN 10088-2, S

27、tainless steels Part 2: Technical delivery conditions for sheet/plate and strip for general purposes. EN 10113-1, Hot-rolled products in weldable fine grain structural steels Part 1: General delivery conditions. EN 10204, Metallic products Types of inspection documents. Licensed Copy: Wang Bin, na,

28、Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 5 EN 12163, Copper and copper alloys Rod for general purposes. EN 12164, Copper and copper alloys Rod for free machining purposes. EN ISO 527-1, Plastics - Determination of tensile properties - Part 1: General principle

29、s (ISO 527-1:1993 including Corr 1:1994). EN ISO 527-2, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994). EN ISO 1133, Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow

30、 rate (MVR) of thermoplastics (ISO 1133:1997). EN ISO 2039-1, Plastics - Determination of hardness - Part 1: Ball indentation method (ISO 2039-1:2001). EN ISO 4288, Geometrical product specifications (GPS) - Surface texture: Profile method - Rules and procedures for the assessment of surface texture

31、 (ISO 4288:1996). EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Verification and calibration of the force-measuring system (ISO 7500-1:2004) ISO 1083, Spheroidal graphite cast irons Classification. ISO 1183, Plas

32、tics Methods for determining the density of non-cellular plastics. ISO 3755, Cast carbon steels for general engineering purposes. ISO 6446, Rubber products Bridge bearings Specification for rubber materials. 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes o

33、f this document, the following terms and definitions apply (see Figure 1). Licensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 6 Key 1 Internal seal 2 Piston 3 Protection by external seal in this area 4 Elastomeric pad 5 Pot NOTE Pot bearings

34、 can be used with the pot inverted. Figure 1 Details of a pot bearing 3.1.1 accumulated slide path the sum of the relative movements between the internal seal and the pot wall resulting from variable rotations 3.1.2 elastomeric pad component which provides the rotational capability 3.1.3 external se

35、al component or material which is used to exclude moisture and debris from the gap between the piston and the pot 3.1.4 internal seal component which prevents escape of the elastomer material through the clearance between the recess walls and the piston when a compressive force is applied 3.1.5 lubr

36、icant special grease used to reduce the friction between the pad and the metallic components for the purpose of reducing wear as well as the rotation stiffness 3.1.6 piston component which closes the open end of the recess in the pot and bears on the elastomeric pad Licensed Copy: Wang Bin, na, Thu

37、Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 7 3.1.7 pot component with a machined recess which contains the elastomeric pad, piston and internal seal 3.1.8 pot bearing structural bearing consisting of an elastomeric pad (rotational element) confined in a cylinder by

38、means of a close fitting piston and an internal seal 3.1.9 sliding pot bearing pot bearing combined with a sliding element to accommodate translational movement in one or any direction 3.2 Symbols For the purposes of this document, the following symbols apply: 3.2.1 Latin upper case letters A cross

39、section area, in square millimetres D internal diameter of pot, in millimetres DOouter diameter of pot ring, in millimetres F0factor in restoring moment formula for zero rotation F1factor in restoring moment formula for lubricated pad F2factor in restoring moment formula for unlubricated pad Fw, res

40、istance of weld in Newton per millimetre Fxy,applied horizontal load, in Newton H depth of the cylindrical recess in millimetres M resistance moment from pad and internal seal in test in Newton millimetre Meresistance moment from pad and internal seal in Newton millimetre MRadditional moment from fr

41、iction between piston and pot in Newton millimetre MTtotal resistance moment from rotation in Newton millimetre N axial force in Newtons R radius of contact surface in millimetres T thickness of the pot base in millimetres V total transverse or shear force in Newton V total transverse or shear force

42、 per unit length in Newton per millimetre Licensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 8 Ve,shear force due to elastomer pressure in Newton 3.2.2 Latin lower case letters b calculated piston/pot contact width, in millimetres d diameter

43、 of elastomeric pad, in millimetres dcteffective contact diameter of upper surface, in millimetres dcbeffective contact diameter of lower surface, in millimetres fUultimate strength of material, in Newton per square millimetre fyyield strength of material, in Newton per square millimetre fe,ddesign

44、contact strength of the elastomer, in Newton per square millimetre t nominal thickness of elastomeric pad in millimetres w width of piston face in millimetres 3.2.3 Greek letters Mpartial safety factor rotation angle due to permanent and variable actions, in radians 1resultant rotation angle due to

45、permanent actions, in radians 2resultant rotation angle due to traffic loads, in radians rotation angle in restoring moment test, in radians 3.2.4 Subscripts Rd design resistance d design value Sd design internal forces and moments from actions u ultimate limit state 3.3 Abbreviations PTFE polytetra

46、fluoroethylene POM polyoxymethylene (acetal) Licensed Copy: Wang Bin, na, Thu Mar 15 00:59:57 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 1337-5:2005 (E) 9 4 Functional requirements 4.1 General A pot bearing shall be capable of transferring applied vertical and horizontal loads between the superstr

47、ucture and substructure and shall permit limited rotational movement (see 6.1.2). The internal seal system shall prevent extrusion of the elastomer from the pot. These requirements shall be met with adequate reliability and durability, see EN 1990. It is assumed that adequate reliability, durability

48、, load bearing capacity and rotation capability result from adopting the design procedures given in clauses 5 and 6. When using an internal seal system indicated in annex A, pot bearings designed and used in accordance with this part of EN 1337 are considered to meet the aforementioned requirements.

49、 4.2 Tests for durability When necessary (see 5.4) the long term functioning according to 4.1 shall be tested in accordance with annex E. Acceptance criteria for these tests are: there shall be no extrusion of cohesive elastomeric material. the compression deformation under the test load shall have not increased for at least 24 h. NOTE Wear of the seal and discoloration of the lubricant is acceptable in these tests. 5 Materials 5.1 General Materials used for the manufacture of pot bearings shall be in accordance with the requi