1、Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIBRITISH STANDARD BS EN 13232-2:2003 Railway applications Track Switches and crossings Part 2: Requirements for geometric design The European Standard EN 13232-2:2003 has the status of
2、 a British Standard ICS 45.080 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIBS EN 13232-2:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 29 August 2003 BSI 29 Augu
3、st 2003 ISBN 0 580 42537 1 National foreword This British Standard is the official English language version of EN 13232-2:2003. The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track components, which has the responsibility to: A list of organizations repre
4、sented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”
5、, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. 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 does not of itself confer
6、 immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate
7、 them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Commen
8、ts Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN132322 August2003 ICS45.080 Englishversion RailwayapplicationsTrackSwitchesandcrossingsPart2: Requirementsforgeometricdesign Applic
9、ationsferroviairesVoieAppareildevoiePartie2: Exigencespourlaconceptiongomtrique BahnanwendungenOberbauWeichenundKreuzungen Teil2:AnforderungenandentechnischenEntwurf ThisEuropeanStandardwasapprovedbyCENon7February2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatethec
10、onditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German)
11、.Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ire
12、land,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymean
13、sreserved worldwideforCENnationalMembers. Ref.No.EN132322:2003E Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Principlesofgeometryandrunningdynamics.
14、4 4 Nongeometricaspectsofdesign . .15 5 Tolerances 15 Bibliography 17 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 3 Foreword Thisdocument(EN132322:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC256“Railwayapplic
15、ations Track“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyFebruary2004,andconflictingnationalstandardsshallbewithdrawnatthelatest byFebruary2004. ThisseriesofEuropeanStandards“ Railwa
16、yApplicationsTrackSwitchesandCrossings ”coversthedesignand qualityofswitchesandcrossingsinflatbottomedrail.Thelistofpartsisasfollows: Part1:Definitions Part2:Requirementsforgeometricdesign Part3:Requirementsforwheel/railinteraction Part4:Actuation,lockinganddetection Part5:Switches Part6:Fixedcommon
17、andobtusecrossings Part7:Crossingswithmovableparts Part8:Expansiondevices Part9:Layouts Part1containsterminologyusedthroughoutallpartsofthisseries.Parts2to4containbasicdesignguidesand areapplicabletoallswitchandcrossingassemblies.Parts5to8dealwithparticulartypesofequipment,including theirtolerances.
18、Part9definesthefunctionalandgeometricdimensionsandtolerancesforlayoutassemblies. TheseuseParts1to4asabasis. ThefollowingtermsareusedwithintodefinethepartiesinvolvedinusingtheEuropeanStandardasthetechnical basisforatransaction: Customer TheOperatororUseroftheequipment,orthePurchaseroftheequipmentonth
19、eUsers behalf. Supplier ThebodyresponsiblefortheuseoftheEuropeanStandardinresponsetothe Customersrequirements. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland,
20、France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 4 1Scope Thisp
21、artofthisEuropeanStandardcoversthefollowingsubjects: geometricdesignprinciplesforwheelguidance; definitionofbasiclimitsofsupply; appliedforcesandtheiradequatesupport; tolerance levels. Theseareillustratedhereinbyapplicationtoaturnout.Themainswitchandcrossingcomponentsarerepresented inturnoutsandthep
22、rinciplesusedinturnoutsapplyequallytomorecomplexlayouts. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequen
23、tamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN132321:2003, RailwayapplicationsTrackSwitchesandcrossingsPart1:Definitions . prEN13
24、2323,RailwayapplicationsTrackSwitchesandcrossingsPart3:Requirementsforwheel/rail interaction. prEN132325, RailwayapplicationsTrackSwitchesandcrossingsPart5:Switches. prEN132329, RailwayapplicationsTrackSwitchesandcrossingsPart9:Layouts. 3 Principlesofgeometryandrunningdynamics 3.1Introduction Geomet
25、ryisrepresentedintherunningplanebytherunningedges.Forthepurposeofdeterminationof permissiblespeedsandfordefinitionoftheturnout,curvatureisdefinedbytheradiusofthetrackcentreline. Theguidingprinciplesofcurvesaregiveninthisstandardastheyapplytoswitchesandcrossings.Switchesand crossingsarenormallydesign
26、edwithoutdifferentialcant;particularrequirementsshallbespecified. Inordertomaintainsafeandcontinuoussupportandguidanceofwheels,certainrulesoftangencyareimposed. Speedandradiusarethenrelatedtolateralacceleration.Cantdeficiencyisderivedfromthis.Switchesand crossingsarecharacterisedbychangesinlateralac
27、celeration,sorulesforbothsteadyandsuddenchanges betweenradiiareincludedinthissection. Calculationsandrulesrelatetovehicleswith2axlesorvehicleswith2axlebogies.Vehicleswithotherthan 2axlesmayrequirespecialconsiderationandassuchtheirconfigurationshallbeprovidedbytheCustomer. Theserulesaredefinedforstea
28、dystatedesign,i.e.withoutacceleration.Requirementsofadynamicnatureshall bestatedbytheCustomer. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 5 3.2 Generalrequirements 3.2.1 References,termsanddefinitions Forthepu
29、rposesofthispartoftheEuropeanStandard,thetermsanddefinitionsgiveninEN132321:2003and thefollowingapply. KeyreferencepointsrelatingtoturnoutgeometryandthelimitsofsupplyofaturnoutareillustratedinFigure1. Key 1 Actualswitchtoe 6 Limitsofsupply(frontjoints) 2 Mathematicalpointofswitch 7 Originofswitchcur
30、ve 3 Tumoutintersection 8 Centrelineradius 4 Theoreticalintersection 9 Turnoutangle 5 Limitsofsupply(heeljoints) Figure1Keyreferencepoints 3.2.2 Generaltangencyrules Atanychangeinradiusthetworadiishallbemutuallytangentialattherunningedges.Toachievethisthecentres ofadjacentcurvesshalllieonthesameradi
31、alline(seeFigure2). Exceptionstothemutualtangencyrulemayoccur.Theseare: alongthelowsidecurveofaturnoutwheregaugevariationoccurs; attheswitchtoe,forexample,toshortentheswitchrail. DetailsaregiveninprEN132323andprEN132325. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 Oc
32、tober 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 6 Key 1 Tangent Figure2Mutualtangency 3.2.3 Keydeterminants Foraconcisedefinitionofthegeometryofanassemblyofswitchesandcrossings,aminimumamountofbasic quantitativeinformationisrequired.Thefollowingitemsarebothnecessaryandsufficientforsuchadefini
33、tionofa turnout. ThefollowingshallbedefinedbytheCustomerandnumericalvaluesprovidedtotheSupplier.Notethatsome valuesmaybedifferentfromthoseforplainline: gauge; speed; maximumlateralaccelerationorcantdeficiency; maximumrateofchangeoflateralaccelerationorcantdeficiency; turnoutintersectionpointandangle
34、(seeFigure3); limitsofsupply(frontjoints,heeljoints); lowsidegaugevariation(ifany). Foracrossoverorjunction,inaddition,thefollowingshallbedefinedbytheCustomerandprovidedtothe Supplier: distancebetweenmainlinetrackcentrelines. Forswitchesandcrossingsonacurvedmainline,thefollowingmustbedefinedandprovi
35、dedbytheCustomer: mainlinecurvature; mainlineandbranchlinecantthroughturnout. ThekeypointswhoselocationshallbeagreedbetweenCustomerandSupplierareasfollows: Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 7 originof
36、switchcurve; realswitchtoe(RP); theoreticalintersection(ofcrossing). Key 1 Overalllength 2 Tangentlength 3 Turnoutintersection 4 Turnoutangle Figure3Settingoutdiagram Radiiofmainandbranchlinesandthepositionsatwhichtheychangeshallbeagreed,forexampleasillustratedin Figure4a)forcirculargeometryand4bfor
37、transitionalgeometry,togetherwith: centreline radii; originofswitchcurvetopositionsofchangesofradii; tangentoffset(ifany); wheresuchchangesofradiishallbeboundedeitherbyincludedangle,orbylongitudinaldistanceorbylateral offset,orinthecaseofatransitionsection,bysuchdataasisnecessarytouniquelydefineitss
38、hape. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 8 Figure4a)Circular Figure4b)Transitional Key 1 Centreline 2 Transition Figure4Keydimensionsrelatedtoradius 3.3 Speedrelationships Fundamentalrulesofcircularmot
39、iondeterminetherelationshipbetweenradiusandspeedaroundacurve.For railwayspecificapplicationsthefollowingformulaapplies: v max = (a max R c ) (1) where R c isthelocalcentrelineradiusofthecurveinmetre; a max isthemaximumlateralaccelerationinm/s 2 ; v max isthemaximumlocalvelocityinm/s. Alternativelywi
40、th V max inkm/h: V max =3,6 (a max R c ) (2) Oftenitisconvenienttoexpressmaximumspeedintermsofmorephysicalmeasures,usingthevariablescant deficiencyandwheelcontactgauge.Firstly,wheelcontactgaugeisexpressedconventionallyas: s w = s t + s r (3) Licensed Copy: Wang Bin, ISO/Exchange China Standards Info
41、rmation Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 9 where s w isthewheelcontactgauge,ordistancebetweenthetwoupperwheel/railcontacts,inmillimetre; s t isthetrackgaugeinmillimetre; s r istherailheadwidthinmillimetre. If s r isnotspecifiedthen,forstandardgauge(1435mm), s w tak
42、esthevalue1500mm.Thespeedrelationshipis thengivenby: V max =3,6 (h d g R c / s w ) (4) where h d isthemaximumpermittedcantdeficiencyinmillimetre; g istheaccelerationduetogravity,normallytakenas9,81m/s 2 . 3.4 Effectsofchangesincurvature 3.4.1Introduction Mostrealsituationsyieldastepchangeincurvature
43、,sinceasmoothcurvaturechangeonlyoccursintransition curves.Theeffectsofstepchangesaremitigatedbythevehiclessuspensionsystem,butanapproximateruleis necessarytoenabletheswitchandcrossingsuppliertomatchthevehiclesrequirements.Inthefollowingtherules forsteadytransitionsarecoveredfirst,thentherulesforstepchangesincurvature. SeeFigure5forexamplesofalternativearrangementsoftransitionswithinturnouts. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 30 October 2003, Uncontrolled Copy, (c) BSIEN132322:2003(E) 10 Key 1 Radius 2 Transition 3 Straight 4 Rad
