1、DRAFT FOR DEVELOPMENT DD ENV 1317-4:2002 Road restraint systems Part 4: Performance classes, impact test acceptance criteria and test methods for terminals and transitions of safety barriers ICS 13.200; 93.080.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWDD ENV 1317-4:200
2、2 This Draft for Development, having been prepared under the direction of the Building and Civil Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 18 March 2002 BSI 18 March 2002 ISBN 0 580 39245 7 National foreword
3、This Draft for Development is the official English language version of ENV 1317-4:2001. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis,
4、 so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European organization responsible for its conversion into a European Standard. A review of this pub
5、lication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its three-year life. The commencement of the review period will be notified by an announcement in Update Standards. According to the replies received by t
6、he end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the prestandard or to withdraw it. Comments should be sent in writing to the Secretary of BSI Subcommittee B/509/1, Road restraint systems, at 389
7、Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which imple
8、ment international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Summary of pages This document co
9、mprises a front cover, an inside front cover, the ENV title page, pages 2 to 21 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANPRESTANDARD PRNORMEEUROPENNE EUROPISCHEVO
10、RNORM ENV13174 November2001 ICS13.200;93.080.30 Englishversion RoadrestraintsystemsPart4:Performanceclasses,impact testacceptancecriteriaandtestmethodsforterminalsand transitionsofsafetybarriers DispositifsderetenueroutiersPartie4:Classesde performance,critresdacceptiondesessaisdechocet mthodesdessa
11、idesextrmitsetraccordementsdes glissiresdescurit RckhaltesystemeanStraenTeil4:Leistungsklassen, AbnahmekriterienfrAnprallprfungenundPrfverfahren frAnfangs,Endundbergangskonstruktionenvon Schutzeinrichtungen ThisEuropeanPrestandard(ENV)wasapprovedbyCENon30September2001asaprospectivestandardforprovisi
12、onalapplication. TheperiodofvalidityofthisENVislimitedinitiallytothreeyears.AftertwoyearsthemembersofCENwillberequestedto submittheir comments,particularlyonthequestionwhethertheENVcanbeconvertedintoaEuropeanStandard. CENmembersarerequiredtoannouncetheexistenceofthisENVinthesamewayasforanENandtomake
13、theENVavailablepromp tly atnationallevelinanappropriateform.Itispermissibletokeepconflictingnationalstandardsinforce(inparalleltothe ENV)untilthefinal decisionaboutthepossibleconversionoftheENVintoanENisreached. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,F
14、rance,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinany
15、formandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENV13174:2001EENV13174:2001(E) 2 Contents page Foreword 3 Introduction 4 1 Scope.4 2 Normativereferences .4 3 Abbreviations .5 4 Termsanddefinitions. 5 5 Terminals.7 6 Transitions .14 7 Testmethods . 16 Bibliography 21ENV13174:2001(E)
16、3 Foreword ThisEuropeanPrestandardhasbeenpreparedbyTechnicalCommitteeCEN/TC226“Road equipment“,thesecretariatofwhichisheldbyAFNOR. ThisEuropeanPrestandardunderthegeneraltitle“Roadrestraintsystems”consistsofthefollowing Parts: Part1:Terminologyandgeneralcriteriafortestmethods; Part2:Performanceclasse
17、s,impacttestacceptancecriteriaandtestmethodsforsafetybarriers; Part3:Performanceclasses,impacttestacceptancecriteriaandtestmethodsforcrashcush ions; ThefollowingPartsarenotyetavailablebutincourseofpreparation: Part4:Performanceclasses,impacttestacceptancecriteriaandtestmethodsforterminalsand transit
18、ionsofsafetybarriers; Part5:Productrequirements,durabilityandevaluationofconformity; Part6:Pedestrianrestraintsystems,pedestrianparapet. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthe followingcountriesareboundtoannouncethisEuropeanPrestandard:Austria,Belgium,Cze
19、ch Republic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Nether lands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdom.ENV13174:2001(E) 4 Introduction Thedesignpurposeofsafetybarriersinstalledonroadsistocontainortocontainandredirecterrant vehiclesthateitherleavet
20、hecarriagewayorarelikelytoencroachintothepathofoncoming vehicles.EN13172dealswiththeimpactperformanceofasafetybarrier.However,difficultiesarise inprovidingadequatesafeterminationstothebarrier.Consequently,terminals,whicharedefinedas thebeginningand/orendtreatmentofasafetybarrier,arerequiredtohavespe
21、cifiedimpact performances.Aterminalprovidesasmoothtransitionfromnocontainmenttothecontainmentofthe barrier,withoutintroducingadditionalhazardforheadonimpacts. Problemsmayalsoariseintheconnectionbetweentwodifferentsafetybarriershavingconsistent differenceinstiffness.Transitionsmaybeneeded,thatarerequ
22、iredtohavespecifiedimpact performances. TheobjectiveofthisprestandardistoleadtotheharmonizationofcurrentNationalRegulations,to categorizethemintoperformanceclassesandhelpdevelopnewsystemsandimproveexisting systems. ThisPartoftheprestandarddefinestheclassesofperformancerequiredofterminalsandtransitio
23、ns fortherestraint. Theimpactseverityofvehiclesincollisionwithterminalsandtransitionsisratedbytheindices accelerationseverityindex(ASI),theoreticalheadimpactvelocity(THIV)andpostimpacthead deceleration(PHD). Attentionisdrawntothefactthattheacceptanceofaterminalortransitionwillrequirethesuccessful co
24、mpletionofaseriesoftests(seeTables1to8). ToensureproperuseofthisPartofthisseries,itisessentialtoconsideralltheotherrelevant documentswithintheseries.Additionally,thequalityofmanufacture,durability,satisfactoryroadside installationandeaseofmaintenanceareimportantsafetycriteria. 1 Scope ThisEuropeanPr
25、estandardspecifiesrequirementsfortheperformanceofterminalsandtransitions. Itdefinesperformanceclassesandacceptancecriteriaforimpacttests. 2 Normativereferences ThisEuropeanPrestandardincorporatesbydatedorundatedreference,provisionsfromother publications.Thesenormativereferencesarecitedattheappropria
26、teplacesinthetext,andthe publicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsof anyofthesepublicationsapplytothisEuropeanPrestandardonlywhenincorporatedinitby amendmentsorrevisions.Forundatedreferencesthelatesteditionofthepublicationreferredto applies(includingamendmen
27、ts). EN13171:1998, RoadrestraintsystemsPart1:Terminologyandgeneraltechnicalcriteriafortest methods.ENV13174:2001(E) 5 EN13172, RoadRestraintSystemsPart2:Performanceclasses,impacttestacceptancecriteria andtestmethodsforsafetybarriers. ISO6487, RoadvehiclesMeasurementtechniquesinimpacttestsInstrumenta
28、tion. ISO10392, RoadvehicleswithtwoaxlesDeterminationofcentreofgravity. 3 Abbreviations ASI Accelerationseverityindex; THIV Theoreticalheadimpactvelocity; PHD Postimpactheaddeceleration; VCDI Vehiclecockpitdeformationindex; U Terminalonupstreamposition; D Terminalondownstreamposition; A Terminalonup
29、streamaswellasdownstreamposition; L Lengthofterminalortransition. Impactspeedclassesabbreviationsare: 80 80km/h 100 100km/h 110110 km/h Testvehiclemasscodesare: 1900 kg 21300 kg 31500 kg 4 Termsanddefinitions 4.1 terminal treatmentofthebeginningand/ortheendofasafetybarrier NOTEInadditionitcanprovide
30、ananchorageforthebarriersystem.Thelength Lofaterminalisthe longitudinaldistancefromthenosetotheendoftheterminal,i.e.tothebeginningofthebarrier.Thelengthofa terminalisshowndiagrammaticallyinFigure1fortwoalternativeshapes.ENV13174:2001(E) 6 Key ABarrier BTerminal 3Sideview 4Planviewa) 5Planviewb) Figu
31、re1LengthofaTerminalwithtwoalternativeshapes(aandb) 4.2 systemtypetestedterminal multipleperformanceproductthatcanbeassembledtoformdifferentmodelsfromthesamesetof components,toobtaindifferentperformances,withthesameworkingmechanismforthesystemand foritscomponents 4.3 transition sothatinterfacebetwee
32、ntwosafetybarriersofdifferentcrosssectionordifferentlateralstiffness,the containmentiscontinuous NOTE1Thepurposeoftransitionsistoprovideagradualchangefromthefirsttothesecondbarrier,to preventthehazardsofanabruptvariation.Atransitionisdesignedtoconnecttwospecifiedbarriers.TheENV13174:2001(E) 7 length
33、ofatransitionisthedistancebetweentheendsofthetwobarriersconnectedbythetransition,asshown schematicallyinFigure2. Key ABarrierB BTransition CBarrierA Figure2LengthofaTransition NOTE2Thejunctionbetweentwobarriershavingthesamecrosssectionandthesamematerial,and differingintheworkingwidthnomorethanonecla
34、ss,isnotbeconsideredatransition. 4.4 removablebarriersection partofbarrierwhichallowforquickremovalandreinstallationforemergencyreasonsprovisionmay berequiredforbarriersectionstobetemporarilyopened,butyethavingcontainmentperformances NOTEIfsuchabarrierhasalengthnotexceeding40m,itisbeconsideredtobeas
35、pecialtransition. 5 Terminals 5.1 Performanceclasses TerminalsshallbetestedinaccordancewithTable1.Thelengthoftheterminalshallconformtothe designspecificationandbeinstalledtogetherwithsufficientlengthofsafetybarriersoasto demonstratetheperformanceoftheterminal. Asuccessfullytestedinstallationatagiven
36、performanceclass,shallnormallybeconsideredas havingmetconditionsoflowerclasses. NOTETheacceptancetestsrequiredforeachterminalperformanceclassarereportedinTable1.Theseare classifiedaccordingtoanincreasingcontainmentcapacity.ENV13174:2001(E) 8 Table1Terminals:vehicleimpacttestcriteriaandperformancecla
37、sses Tests Performance class Location Approach Approach reference Vehicle mass(kg) Velocity (km/h) Test code 1) P1 A headonnose1/4 offsettoroadside 2 900 80 TT2.1.80 headonnose1/4 offsettoroadside 2 900 80 TT2.1.80 U side,152/3 L 4 1300 80 TT4.2.80 P2 A D side,1651/2 L 5 900 80 TT5.1.80 headonnose1/
38、4 offsettoroadside 2 900 100 TT2.1.100 headoncentre 1 1300 100 TT1.2.100 U side,152/3 L 4 1300 100 TT4.2.100 P3 A D side,1651/2 L 5 900 100 TT5.1.100 headonnose1/4 offsettoroadside 2 900 100 TT2.1.100 headoncentre 1 1500 110 TT1.3.110 U side,152/3 L 4 1500 110 TT4.3.110 P4 A D side,1651/2 L 5 900 10
39、0 TT5.1.100 1) Testcodenotationisasfollows: TT 1 2 100 Testof Approach Test Impact Terminal vehicle speed mass NOTE1Toavoidambi guity,thenumberin goftheapproachpathinTable1andinFi gure3isthesameasin EN13173;approach3ispresentinEN13173astest3forcrashcushions,butitisnotrequiredfor Terminals. NOTE2Thet
40、estwithapproach5isnotrunforaflaredterminalwhen,attherelevantimpactpoint,thean gle ( )ofthevehiclepathtothetrafficfaceoftheterminalislessthan5.ENV13174:2001(E) 9 a) b) Key Approach1 Approach2 Approach4 Approach5 1Barrier 2Terminal 31/2vehiclewidth 41/4vehiclewidth Figure3Vehicleapproachpathswithtwoal
41、ternativeshapesofTerminal(aandb)ENV13174:2001(E) 10 5.2 Testsforsystemtypetestedterminals Agroupofmodelscoveringarangeofperformanceclassescanbederivedfromasingle Parent Terminal,oncethelatterhasbeensuccessfullytestedtothisprestandard. Providedthatthemodelsinthegroup: a) areassembledfromthesamesetofc
42、omponents; b) havethesameproductname; c) havethesameworkingmechanismforthesystemandforthecomponents, thegroup,specifiedbythedrawingsofallthemodels,maybetestedasasingleproductwith multipleperformancepossibilities.Ifthetestsspecifiedbythegrouptestmatrixarepassed,the terminalshallbeacceptedasamultiplep
43、erformanceproduct,i.e.eachmodelisacceptedinthe relevantperformanceclass. IftheparentTerminalbelongstothehighestperformanceclassthetestmatrixshallbetheone showninTable2or3,dependingonthehighestperformanceclassofthegroup. Table2ParentTerminalP4 Performanceclass Tests P4 Alltests P3 TT1.2.100 P2 TT2.1.
44、80 Table3ParentterminalP3(shapea) Performanceclass Tests P3 Alltests P2 TT2.1.80 IftheparentterminalbelongstotheperformanceclassP3andthegroupcoversalsotheclassP4 thetestmatrixshallbeinaccordancewithTable4. Table4ParentterminalP3(shapeb) PerformanceClass Tests P4 TT2.1.100 TT1.3.110 P3 Alltests P2 TT2.1.80ENV13174:2001(E) 11 5.3Impactseverity
