1、BS EN13230-4:2009ICS 45.080; 91.100.30; 93.100NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDRailway applications Track Concretesleepers and bearersPart 4: Prestressed bearers forswitches and crossingsCopyright European Committee for Standardization Provided by
2、 IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 June2009 BSI 2009ISBN 978 0 580 58986 7Amendments/corrigenda issued since publication
3、Date CommentsBS EN 13230-4:2009National forewordThis British Standard is the UK implementation of EN 13230-4:2009. Itsupersedes BS EN 13230-4:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RAE/2, Railway track components.A list of organizations re
4、presented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Copyright E
5、uropean Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13230-4June 2009ICS 91.100.30; 93.100 Supersedes EN 13230-4:2002 English
6、VersionRailway applications - Track - Concrete sleepers and bearers -Part 4: Prestressed bearers for switches and crossingsApplications ferroviaires - Voie - Traverses et supports enbton - Partie 4 : Supports prcontraints pour appareil devoieBahnanwendungen - Oberbau - Gleis- undWeichenschwellen aus
7、 Beton - Teil 4:Spannbetonschwellen fr Weichen und KreuzungenThis European Standard was approved by CEN on 14 May 2009.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 a
8、ny alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made b
9、y translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Ger
10、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGMan
11、agement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13230-4:2009: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproductio
12、n or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Special requirement 54.1 Design bending moments .54.2 Positioning of fastening components .54.3 Tolerance
13、s 54.3.1 General 54.3.2 Tolerance of planeness .64.3.3 Tolerances of fastening positioning 64.3.4 Tolerance of vertical deviation from straight 64.4 Distance from the end of the bearer to the nearest cast-in component 75 Product testing .85.1 General 85.2 Symbols 85.3 Test arrangements .85.4 Test pr
14、ocedures .95.4.1 Test loads .95.4.2 Static test 95.4.3 Fatigue test 115.5 Acceptance criteria . 135.5.1 General . 135.5.2 Static test . 135.5.3 Fatigue test 135.6 Design approval tests 145.6.1 General . 145.6.2 Bending moments evaluation 145.6.3 Concrete 145.6.4 Product inspection . 145.7 Routine te
15、sts . 145.7.1 General . 145.7.2 Positive or negative bending moment evaluations for static test . 145.7.3 Concrete 155.7.4 Product checking 156 Manufacturing . 156.1 Manufacturing rules 156.2 Additional marking . 157 Data to be supplied . 157.1 Data supplied by the purchaser 157.2 Data supplied by t
16、he supplier 16Annex A (normative) Detailed drawings of the test arrangements . 17A.1 Articulated support . 17A.2 Resilient pad 18Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC . 19Bibliography . 22Copyright European Commit
17、tee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 3 Foreword This document (EN 13230-4:2009) has been prepared by Technical Committee CEN/TC 256 “Railway applications”
18、, 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 December 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. Atte
19、ntion is drawn to the possibility 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 document supersedes EN 13230-4:2002. This European Standard is one of the series EN 1
20、3230 “Railway applications Track Concrete sleepers and bearers“, which consist of the following parts: Part 1: General requirements Part 2: Prestressed monoblock sleepers Part 3: Twin-block reinforced sleepers Part 4: Prestressed bearers for switches and crossings Part 5: Special elements This docum
21、ent has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive 2008/57/EC. For relationship with EC Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document.
22、According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
23、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted wi
24、thout license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 4 Introduction This part of EN 13230 defines the specific requirements dedicated to prestressed bearers for switches and crossings. These are additional requirements to EN 13230-1:2009 and are necessary to have a complete standard deal
25、ing with prestressed concrete bearers for switches and crossings. The document specifies the test arrangements and the test procedures to implement and also the corresponding acceptance criteria just as the design approval test. Copyright European Committee for Standardization Provided by IHS under
26、license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 5 1 Scope This part of EN 13230 defines additional technical criteria and control procedures as well as specific tolerance limits related to designing and manufact
27、uring prestressed bearers for switches and crossings with a maximum length of 8,5 m. Bearers longer than 8,5 m are considered as special elements and shall comply with EN 13230-5. 2 Normative references The following referenced documents are indispensable for the application of this document. For da
28、ted references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 206-1, Concrete Part 1: Specification, performance, production and conformity EN 13230-1:2009, Railway applications Track Concrete sleepers and
29、 bearers Part 1: General requirements EN 13230-5:2009, Railway applications Track Concrete sleepers and bearers Part 5: Special elements 3 Terms and definitions For the purposes of this part of EN 13230, the terms and definitions given in EN 13230-1:2009 and the following apply: 3.1 prestressed mono
30、block bearer bearer manufactured using pre-tensioned or post-tensioned tendons 4 Special requirement 4.1 Design bending moments The bearer shall be designed with positive and negative design bending moment capacities with the objective of keeping it straight. 4.2 Positioning of fastening components
31、An area of the concrete section shall be specified by the purchaser to be free from prestressing tendons for the location of fastening components. If required by the purchaser, the design of the bearer shall provide for the repair or replacement of the embedded fastening components. 4.3 Tolerances 4
32、.3.1 General The maximum tolerances specified in EN 13230-1:2009, 6.1 apply to concrete bearers. Measurement of tolerances shall be checked not before 48 h after transfer of prestressing forces. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo r
33、eproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 6 4.3.2 Tolerance of planeness The maximum deviation of the total rail seat or base plate area is as follows: planeness: 1 mm; Variation of planeness with regard to 2 points 150 mm apart: 0,5 mm 4.
34、3.3 Tolerances of fastening positioning The tolerances of the embedded fastening components positioning shall be measured in accordance with Figure 1. Figure 1 Measurement of tolerances on fastening components positioning Tolerance on dimensions A and D (on the same support area): 1,0 mm Tolerance o
35、n dimensions B and C (between two separate supports areas): 1,5 mm Tolerance between the last cast-in component and the end of the bearer (E): 10 mm The tolerances specified above may be varied by the purchaser in case of special requirements and shall be defined on the drawings submitted by the pur
36、chaser. These tolerances shall apply to all embedded components with either direct or indirect fastening system. 4.3.4 Tolerance of vertical deviation from straight Figure 2 shows the vertical deviation measurement. Copyright European Committee for Standardization Provided by IHS under license with
37、CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 7 Key 1 Rigid support 2 Bearer 3 Support (50 mm 50 mm section) across width of bearer 4 Straight datum 5 Support across width of bearer 6 Top surface of bearer 7 Vertical devia
38、tion measurement area 8 Measurement base Figure 2 Vertical deviation measurement Vertical deviation in both directions is measured on a 3,6 m long base as on Figure 2. Alternative measurement methods can be proposed by the manufacturer and agreed with the purchaser. Bearers shorter than 4 m need not
39、 be checked. Maximum allowed deviation is 3 mm on a 3,6 m base. For bearer length above 6 m, maximum allowed deviation is agreed between supplier and purchaser. 4.4 Distance from the end of the bearer to the nearest cast-in component The supplier defines the prestress anchoring area and special care
40、 to be taken into account for cast-in components near to the end of the bearer. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 8 5 Product
41、testing 5.1 General This section defines the testing regime and rules for acceptance of concrete bearers. The layouts of the test arrangements are defined in this section. 5.2 Symbols The following symbols are used as defined in Table 1: Table 1 Symbols Symbol DesignationM Positive design bending mo
42、ment, in kNm Mn Negative design bending moment, in kNm Fb0Positive initial reference test load, in kN Fb0nNegative initial reference test load, in kN FbrTest load which produces first crack at the bottom of the bearer, in kN FbrnTest load which produces first crack at the top of the bearer, in kN Fb
43、0,05Maximum test load for which a crack width of 0,05 mm persists at the bottom of the bearer after removal of the load, in kN Fb0,05nMaximum test load for which a crack width of 0,05 mm persists at the top of the bearer after removal of the load, in kN FbBMaximum test load which cannot be increased
44、 when the bottom of the bearer is cracked,in kN; FbBnMaximum test load which cannot be increased when the top of the bearer is cracked, in kN FbuLower test load for the fatigue test: Fbu= 0,25 Fb0, in kN kbImpact coefficient for positive static test kbnImpact coefficient for negative static test kbB
45、Impact coefficient for fatigue test 5.3 Test arrangements The arrangement for the static and fatigue test is shown in Figure 3. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS
46、 EN 13230-4:2009EN 13230-4:2009 (E) 9 Key 1 Rigid support 2 Articulated support (see Annex A for details) 3 Resilient pad (see Annex A for details) 4 Bearer Figure 3 Test arrangement For the static test, the bearer shall be arranged as in Figure 3. For the fatigue test, the load Fb shall be applied
47、at the centre section of the bearer. 5.4 Test procedures 5.4.1 Test loads Fb0 and Fb0nis calculated from the geometry given in Figure 3 using the following equations: Fb0= 35,0Min kN; (1) Fb0n= 35,0Mnin kN (2) 5.4.2 Static test The static test procedure is shown in Figures 4 and 5 for the positive a
48、nd negative bending moments. The maximum load applied is Fb0,05or FbBwhichever is reached first. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13230-4:2009EN 13230-4:2009 (E) 10 Key 1 Load 2 Time 3 Crack checking (maximum duration: 5 min) 4 120 kN/min maximum 5 From 10 s minimum to 5 min
