1、BRITISH STANDARD BS EN 13232-8:2007Railway applications Track Switches and crossings Part 8: Expansion devicesICS 45.080nullnull nullnullnullnullnullnullnull nullnullnullnullnullnullnull nullnullnull nullnullnullnullnullnullnullnullnullnull nullnullnullnullnullnull nullnull nullnullnullnullnullnulln
2、ullnullnull nullnull nullnullnullnullnullnullnullnullnull nullnullnull+A1:2011National forewordThis British Standard is the UK implementation of EN 13232-8:2007+A1:2011. It supersedes BS EN 13232-8:2007, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated
3、in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrusted by Technical Committee RAE/2 Railway Applications - Track.A list of organizations rep
4、resented on this subcommittee 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 cannot confer immunity from legal obligations.BS EN
5、13232-8:2007+A1:2011This British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon 30 April 2007 BSI 2011ISBN 978 0 580 70120 7Amendments/corrigenda issued since publicationDate Comments30 November 2011 Implementation of CEN amendment A1:2011EUROPEAN STANDARD N
6、ORME EUROPENNE EUROPISCHE NORM EN 13232-8:2007+A1 October 2011 ICS 93.100 Supersedes EN 13232-8:2007English Version Railway applications - Track - Switches and crossings - Part 8: Expansion devices Applications ferroviaires - Voie - Appareils de voie - Partie 8: Appareils de dilatation Bahnanwendung
7、en - Oberbau - Weichen und Kreuzungen -Teil 8: Auszugsvorrichtungen This European Standard was approved by CEN on 17 February 2007 and includes Amendment 1 approved by CEN on 13 September 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions f
8、or giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in thr
9、ee official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bo
10、dies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United K
11、ingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13232-8:2007+A1:
12、2011: EEN 13232-8:2007+A1:2011 (E) 2 Contents Page Foreword 3Introduction .51 Scope 62 Normative references 63 Terms and definitions .63.1 General definitions 63.2 Main types of expansion devices .84 Design 134.1 Design inputs 134.2 Design rules 144.2.1 General rules . 144.2.2 Wheel/rail interaction
13、 . 154.2.3 Specific rules . 154.3 Performance requirements 164.4 Materials 164.5 Design output 174.5.1 Detailed component plans . 174.5.2 Assembly documents . 175 Tolerances and inspection 175.1 General . 175.2 Tools and instruments . 175.3 Critical dimensions . 175.4 Adjustment switch (bayonet type
14、) 185.5 Expansion switch 235.6 Certification . 325.7 Methods of examination for structural defects . 325.7.1 Visual . 325.7.2 Dye penetrant and/or magnetic particle . 326 Longitudinal resistance testing . 336.1 Test method . 336.2 Test results 337 Acceptance testing . 338 Limits and extent of supply
15、 . 349 Identification marks 34Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC“ 35BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 3 Foreword This document (EN 13232-8:2007+A1:2011) has been prepared by Technical Commi
16、ttee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. 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 April 2012, and conflicting national standards shall be withdrawn a
17、t the latest by April 2012. !This document has been prepared under a mandate given to CEN/CENELEC/ETSI by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, see informative An
18、nex ZA, which is an integral part of this document.“ This document includes Amendment 1, approved by CEN on 2011-09-13. This document supersedes EN 13232-8:2007. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. Attention is drawn to the possibilit
19、y that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This series of standards “Railway applications Track Switches and crossings” covers the design and quality of switches and
20、 crossings in flat bottomed rail. The list of Parts is as follows: Part 1: Definitions Part 2: Requirements for geometric design Part 3: Requirements for wheel/rail interaction Part 4: Actuation, locking and detection Part 5: Switches Part 6: Fixed common and obtuse crossings Part 7: Crossings with
21、moveable parts Part 8: Expansion devices Part 9: Layouts Part 1 contains terminology used throughout all parts of the standard. Parts 2 to 4 contain basic design guides and are applicable to all switch and crossing assemblies. The latter parts, from 5 onwards, deal with particular types of equipment
22、, including their tolerances. Part 9 defines the functional and geometric dimensions and tolerances for layout assemblies. These use Parts 1 to 4 as a basis. The following terms are used within to define the parties involved in using the EN as the technical basis for a transaction: BS EN 13232-8:200
23、7+A1:2011EN 13232-8:2007+A1:2011 (E) 4 Customer The Operator or User of the equipment, or the Purchaser of the equipment on the Users behalf. Supplier The body responsible for the use of the EN in response to the Customers requirements. According to the CEN/CENELEC Internal Regulations, the national
24、 standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Nor
25、way, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 5 Introduction An expansion device is a device which permit longitudinal relative rail movement of two adjacent rails, while maintaining correct gu
26、idance and support. These longitudinal movements may be required in: a) interrupted CWR (continuously welded rail); b) structure movement; c) or a combination of both. BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 6 1 Scope This part of EN 13232 covers the following subjects: to establish a
27、working terminology for expansion devices, for their constituent parts and for the types; to specify the minimum manufacturing requirements for expansion devices and their constituent parts; to formulate codes of practice for inspection and tolerances; to define the method by which expansion devices
28、 and their parts should be identified and traced. 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 a
29、ny amendments) applies. EN 13146-1, Railway applications Track Test methods for fastening systems Part 1: Determination of longitudinal rail restraint EN 13232-2, Railway applications Track Switches and crossings Part 2: Requirements for geometric design EN 13232-3, Railway applications Track Switch
30、es and crossings Part 3: Requirements for wheel/rail interaction EN 13232-9, Railway applications Track Switches and crossings Part 9: Layouts EN 13715, Railway applications Wheelsets and bogies Wheels Wheels tread UIC 510-2, Trailing stock: wheels and wheelsets Conditions concerning the use of whee
31、ls of various diameters 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 General definitions 3.1.1 hand (of half set) adjustment switch (bayonet type) LH (left hand) half set or RH (right hand) when viewed standing in the track gauge and facin
32、g the tips of the inside rails. With check rails, there may be two LH or two RH half sets, see Figure 6, or opposite hand half sets 3.1.2 hand (of half set) expansion switch LH half set or a RH half set when viewed standing in the track gauge and facing the toes of the expansion switch 3.1.3 expansi
33、on capacity C maximum permissible relative longitudinal movement between the two rails, where: C = Dmax Dmin BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 7 Key Key Dminminimum gap Dmaxmaximum gap Figure 1 Closed position Figure 2 Open position 3.1.4 relative displacement rail / support maxi
34、mum permissible relative longitudinal movement between the rail (switch or stock rail) and the corresponding support (base plate or bearer) 3.1.5 mean position position where the expansion capacity and the relative displacement of rails are half way, and the bearers are in their nominal position 3.1
35、.6 design position nominal position where the expansion capacity and the relative displacement of rails are half way, especially where shrinkage of concrete structures, for example, will shift the mean position Key Dminminimum gap Dmaxmaximum gap M mean position Figure 3 Mean position BS EN 13232-8:
36、2007+A1:2011EN 13232-8:2007+A1:2011 (E) 8 3.2 Main types of expansion devices 3.2.1 adjustment switch (bayonet type) expansion device with interruption of the running edge 3.2.1.1 Adjustment switch without check rails (both sides moveable) Key 1 slide chair 4 moveable rails 2 low restrain fastening
37、5 bearer straps 3 standard fastening R reference point Figure 4 Adjustment switch both sides moveable BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 9 3.2.1.2 Adjustment switch without check rails (one side moveable) Key 1 slide chair 5 fixed rails 2 low restrain fastening 6 bearer straps 3 s
38、tandard fastening R reference point 4 moveable rails Figure 5 Adjustment switch one side moveable BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 10 3.2.1.3 Adjustment switch with check rails (both sides moveable) Key 1 slide chair 5 check rails 2 low restrain fastening 6 bearer strap 3 standa
39、rd fastening R reference point 4 moveable rails Figure 6 Adjustment switch with check rails both sides moveable BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 11 3.2.1.4 Adjustment switch with check rails (one side moveable) Key 1 slide chair 5 fixed rails 2 low restrain fastening 6 check rai
40、ls 3 standard fastening 7 bearer strap 4 moveable rails R reference point Figure 7 Adjustment switch with check rails one side moveable 3.2.2 expansion switch expansion device without interruption of the running edge BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 12 3.2.2.1 Expansion switch w
41、ith moveable stock rails Key 1 slide chair 5 fixed switch rails 2 low restrain fastening 6 bearer strap 3 standard fastening R reference point 4 moveable stock rails Figure 8 Expansion switch moveable stock rails 3.2.2.2 Expansion switch with moveable switch rails Key 1 slide chair 5 moveable switch
42、 rails 2 low restrain fastening 6 bearer strap 3 standard fastening R reference point 4 fixed stock rails Figure 9 Expansion switch moveable switch rails BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 13 3.2.2.3 Expansion switch both sides moveable Key 1 slide chair 5 moveable switch rails 2
43、low restrain fastening 6 bearer strap 3 standard fastening R reference point 4 moveable stock rails Figure 10 Expansion switch both sides moveable 4 Design 4.1 Design inputs The following information shall be supplied by the customer to the supplier: axle load; gross annual tonnage; train speed; nom
44、inal track gauge; direction of traffic; track geometry. In addition the customer shall decide: the type of expansion device to be applied; the expansion capacity of the expansion device as well as the maximum displacement rail/support. If the latter is not provided, it shall be estimated to be half
45、the expansion capacity of the device; the basic rail section and grade; the rail inclination to be applied through the expansion device; the fastening system to be applied; the nominal support spacing; BS EN 13232-8:2007+A1:2011EN 13232-8:2007+A1:2011 (E) 14 type of support structure, e.g. bearer, s
46、lab track; special requirements, e.g. limits of vertical and horizontal end rotations, limits of local vertical and horizontal radii of track, limits of uplift movements on rail supports adjacent to the gap between the structure and the abutment or between the structures. The following elements shal
47、l be agreed between customer and supplier: the special rail profiles to be applied for the construction (if applicable); the constructional length; the machining details of the rail sections; the maximum support spacing in service. 4.2 Design rules 4.2.1 General rules 4.2.1.1 Support panel In the ca
48、se where 1 side is moveable, a number of bearers shall be restrained from moving. This is normally a minimum of four bearers. The incoming rails shall have low resistance fastenings on the restrained bearers to permit movement of the moveable rails. All restrained bearers are linked to each other. T
49、his can be achieved by the use of a bearer strap, guard rail, continuous base plate etc. In the case when both sides are moveable, the bearers shall be restrained from moving by means of a steel strap. This is to ensure bearer distance does not change and prohibits the bearers from moving from their nominal position during operation and/or maintenance. 4.2.1.2 Low restra
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