1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Railway applications Track Noise barriers and related devices acting on airborne sound propagation Non-acoustic performancePart 1: Mechanical performance under static loadings Calculation and test methodBS EN 167271:201
2、8National forewordThis British Standard is the UK implementation of EN 167271:2018.The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway Applications Track.A list of organizations represented on this committee can be obtained on request to its secretary.This pub
3、lication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 87228 0ICS 93.100Compliance with a British Standard cannot confer immunity
4、from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 167271:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 16727-1June
5、 2018ICS 93.100EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN 167271:2018: EAll rights of exploitation in any form and by any means reserved worldwide for CEN nati
6、onal MembersRailway applications Track Noise barriers and related devices acting on airborne sound propagation Nonacoustic performance Part 1: Mechanical performance under static loadings Calculation and test methodApplications ferroviaires Voie crans antibruit et dispositifs connexes influant sur l
7、a propagation arienne du son Performances non acoustiques Partie 1 : Tenue mcanique sous charges statiques Calcul et mthode dessaiBahnanwendungen Oberbau Lrmschutzwnde und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung Nicht akustische Eigenschaften Teil 1: Mechanische Eigenscha
8、ftsanforderungen unter statischen Belastungen Berechnungs und PrfverfahrenThis European Standard was approved by CEN on 8 February 2018.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national
9、standard without any alteration. Uptodate lists and bibliographical references concerning such national standards may be obtained on application to the CENCENELEC Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in a
10、ny 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 bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Repu
11、blic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.E
12、nglish VersionEN 16727-1:2018 (E)European foreword iiiIntroduction iv1 Scope . 52 Normative references 53 Terms and definitions . 64 Symbols and abbreviations . 75 Structural design 75.1 General . 75.2 Assumptions for the design . 85.3 Loads on the noise barrier structure . 85.3.1 General 85.3.2 Per
13、manent loads 85.3.3 Variable loads . 95.3.4 Snow loading 105.3.5 Dynamic loads caused by passing trains 105.3.6 Actions caused by impact loads . 105.3.7 Actions caused by snow clearance 105.4 Design resistance . 105.4.1 General. 105.4.2 Material testing 115.4.3 Full scale testing 115.4.4 Calculation
14、 116 Method of verification 116.1 Serviceability Limit State (SLS) . 116.2 Ultimate Limit State (ULS) . 117 Reports.127.1 Evaluation report . 127.2 Test report 127.3 Static calculation report . 13Annex A (informative) Correction factors for added devices of different shapes 14Bibliography .16iiConte
15、nts PageBS EN 167271:2018EN 16727-1:2018 (E)European forewordThis document (EN 16727-1:2018) has been prepared by Technical Committee 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 publicat
16、ion of an identical text or by endorsement, at the latest by December 2018, and conflicting national standards shall be withdrawn at the latest by December 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held
17、 responsible for identifying any or all such patent rights.This document is one of the series EN 16727, Railway applications Track Noise barriers and related devices acting on airborne sound propagation Non-acoustic performance, as listed below: Part 1: Mechanical performance under static loadings C
18、alculation and test method this document; Part 2-1: Mechanical performance under dynamic loadings due to passing trains Resistance to fatigue; Part 2-2: Mechanical performance under dynamic loadings caused by passing trains Calculation method; Part 3: General safety and environmental requirements.Ac
19、cording to the CENCENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, German
20、y, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.iiiBS EN 167271:2018EN 16727-1:2018 (E)IntroductionNoise barriers and related devic
21、es acting on airborne sound propagation are exposed to permanent, variable or accidental actions as set out in EN 1990.This document permits the evaluation of the effects of forces due to selfweight, air pressure load and impact loads that can act on the noise barrier and/or its components.Under com
22、binations of permanent, variable, and accidental actions, it is essential that the structural behaviour of the noise barrier are evaluated with the aim of preventing excessive stress of material, separation of elements from structural posts and excessive deflections that may affect their acoustic ef
23、fectiveness and robustness.Different materials used in the design of a noise barrier are due to be chemically compatible and not adversely affect each others characteristics.With specific reference to accidental actions caused by ballast stones or other debris from passing trains, minor damage may b
24、e tolerated but attention will be paid to safety, environmental and functional requirements. Shatter properties are treated in EN 167273.In circumstances where there is a lack of design information, or doubt about the parameters required to undertake tests or calculation for verification of a design
25、, additional surveys and geotechnical investigations are essential so as to obtain the required values in order to ensure the safety and serviceability of the complete noise barrier.In some countries, the dynamic force of snow ejected by equipment used to clear the rail track in winter will be consi
26、dered.ivBS EN 167271:2018EN 16727-1:2018 (E)1 ScopeThis document applies only to noise barriers composed of posts as structural elements and panels as acoustic elements (fabricated for example from metal, timber, plastic or concrete panels). It also applies for acoustic claddings of existing walls a
27、nd partial or total acoustic coverings of the rail track.It is important that acoustic elements are tested together with the structural elements to represent the noise barrier as in the intended use.This document provides criteria to verify railway noise barriers and related devices according to bas
28、ic mechanical performance under standard conditions of exposure, irrespective of the materials used. A range of conditions and optional requirements is provided to allow for the wide diversity of practice within Europe. Individual aspects of performance are covered separately in the annexes.This doc
29、ument provides test methods and criteria for the assessment of railway noise barriers with respect to their mechanical performance and stability under static loading.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes
30、requirements 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 17941:2011, Road traffic noise reducing devices Non-acoustic performance Part 1: Mechanical performance and
31、 stability requirementsEN 1990:20021), Eurocode Basis of structural designEN 1991 (all parts), Eurocode 1: Actions on structuresEN 199114:20052), Eurocode 1: Actions on structures Part 1-4: General actions Wind actionsEN 1992 (all parts), Eurocode 2: Design of concrete structuresEN 1993 (all parts),
32、 Eurocode 3 Design of steel structuresEN 1994 (all parts), Eurocode 4 Design of composite steel and concrete structuresEN 1995 (all parts), Eurocode 5: Design of timber structuresEN 1996 (all parts), Eurocode 6 Design of masonry structuresEN 1997 (all parts), Eurocode 7 Geotechnical designEN 1998 (a
33、ll parts), Eurocode 8 Design of structures for earthquake resistanceEN 1999 (all parts), Eurocode 9: Design of aluminium structuresEN 1672722, Railway applications Track Noise barriers and related devices acting on airborne sound propagation Non-acoustic performance Part 2-2: Mechanical performance
34、under dynamic loadings caused by passing trains Calculation methodEN ISO 291, Plastics Standard atmospheres for conditioning and testing (ISO 291)ETAG 010:20023), Self-supporting translucent roof kits1) This document is currently impacted by the amendment EN 1990:2002/A1:2005 and corrigendum EN 1990
35、:2002/A1:2005/AC:2010.2) This document is currently impacted by the amendment EN 199114:2005/A1:2010 and corrigendum EN 199114:2005/AC:2010.3) European Technical Approval Guidelines (ETAG), established by the European Organisation for Technical 5BS EN 167271:2018EN 16727-1:2018 (E)3 Terms and defini
36、tionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.o
37、rg/obp 3.1noise barriernoise reducing device, which obstructs the direct transmission of airborne sound emanating from railways, and which will typically span between posts and also may overhang the railwayNote 1 to entry: Noise barriers are generally made of acoustic and structural elements (3.3 an
38、d 3.4).3.2claddingnoise reducing device, which is attached to a wall or other structure and reduces the amount of sound reflectedNote 1 to entry: Claddings are generally made of acoustic and structural elements (3.3 and 3.4).3.3acoustic elementelement whose primary function is to provide the acousti
39、c performance of the device3.4structural elementelement whose primary function is to support or hold in place acoustic elementsNote 1 to entry: In some noise barriers the acoustic function and the structural function cannot be clearly separated and attributed to different components.3.5added devicea
40、dded component that influences the acoustic performance of the original noise-reducing device (acting primarily on the diffracted energy)3.6segmentlength of the noise barrier or cladding, within the total length, where the construction characteristics, the geotechnical conditions and the design load
41、s are constant3.7load modelsimplified mathematical description of a complicated loading, such as the air pressure wave generated by passing trains3.8quasi-static load modelload model including dynamic effects of loadingAssessment (EOTA), under the Construction Products Directive (CPD) 89/106/EEC. Fr
42、eely available at www.eota.eu.6 BS EN 167271:2018EN 16727-1:2018 (E)4 Symbols and abbreviationsFor the purposes of this document, the following symbols and abbreviations apply.Symbol or abbreviationDesignation Unit Inclination angle of the noise barrier to the vertical axis degreesMRMCPartial safety
43、 factors for the material/structure in accordance with the uncertainty of the model usedCp,netNet pressure coefficient (wind) fc tHorizontal correction factor for noise barriers having a Ttop shaped added devicefc t1Vertical correction factor for Ttop shaped added devices on the windward side fc t2V
44、ertical correction factor for Ttop shaped added devices on the leeward side HzoneHeight difference between two adjacent zones of a noise barrier of variable height mmHnrdTotal height of acoustic elements constituting the whole noise barrier mmhaeHeight of a single acoustic element mmKFIFactor applic
45、able to actions for reliability differentiation (see EN 1990) L horizontal distance between the ends of the zones of the noise barrier with different heightsmmLaGreatest free length of an acoustic element (between its supporting structural elements)mmLsGreatest length of a structural element (e.g. f
46、or a cantilever beam, it is calculated from the base)mmqpGust wind pressure (from Eurocode) Pa5 Structural design5.1 GeneralThe determination of mechanical resistance and stability, including the ultimate load carrying capacity and serviceability limits, shall be undertaken on the basis of EN 1990.T
47、he verification shall be undertaken by calculation, testing, or a combination of calculation assisted by testing.Where structural characteristics may vary within the total length of the noise barrier, single segments need to be considered for the evaluation of mechanical performance. In order to per
48、form tests or calculations within the segment, a portion shall be considered (e.g. structural elements plus acoustic elements) that shall be stable on its own.The actions defined in this European standard for permanent, variable and accidental loads are based on assumptions in compliance with the ap
49、propriate Eurocode requirements, which are expected to result in slightly conservative designs (in terms of safety).In the absence of specific Eurocodes, existing Eurocodes for buildings or bridges are referred to.Data from model studies or prototype test measurements for determination of wind pressure coefficients can be used, if undertaken for the specific noise barrier in question.This standard approach is also acceptable for checking the
