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 2-1: Mechanical performance under dynamic loadings due to passing trains - Resistance
2、 to fatigueBS EN 16727-2-1:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16727-2-1 June 2018 ICS 93.100 English Version Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance - Part 2-1: Mechanical performance unde
3、r dynamic loadings due to passing trains - Resistance to fatigue Applications ferroviaires - Voie - crans antibruit et dispositifs connexes influant sur la propagation arienne du son - Performances non acoustiques - Partie 2-1 : Tenue mcanique sous charges dynamiques dues la circulation ferroviaire
4、- Rsistance la fatigue Bahnanwendungen - Oberbau - Lrmschutzwnde und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung - Nicht akustische Eigenschaften - Teil 2-1: Mechanische Eigenschaftsanforderungen unter dynamischen Belastungen aufgrund vorbeifahrender Zge - Prfverfahren zum Er
5、mdungsverhalten This 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 standard without any alteration. Up-to-date lists and bib
6、liographical 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 three official versions (English, French, German). A version in any other language made by translation under the respo
7、nsibility 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 Republic, Denmark, Estonia, Finland, Former Yugoslav Rep
8、ublic 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
9、 DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16727-2-1:2018 ENational forewordThis British Standard is th
10、e UK implementation of EN 1672721:2018. 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 publication does not purport to include all th
11、e 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 87232 7ICS 93.100Compliance with a British Standard cannot confer immunity from legal obligations. This British Standa
12、rd 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 1672721:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16727-2-1 June 2018 ICS 93.100 English Version Ra
13、ilway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance - Part 2-1: Mechanical performance under dynamic loadings due to passing trains - Resistance to fatigue Applications ferroviaires - Voie - crans antibruit et dispositifs co
14、nnexes influant sur la propagation arienne du son - Performances non acoustiques - Partie 2-1 : Tenue mcanique sous charges dynamiques dues la circulation ferroviaire - Rsistance la fatigue Bahnanwendungen - Oberbau - Lrmschutzwnde und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreit
15、ung - Nicht akustische Eigenschaften - Teil 2-1: Mechanische Eigenschaftsanforderungen unter dynamischen Belastungen aufgrund vorbeifahrender Zge - Prfverfahren zum Ermdungsverhalten This European Standard was approved by CEN on 8 February 2018. CEN members are bound to comply with the CEN/CENELEC I
16、nternal Regulations which stipulate the conditions for 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
17、any CEN member. This European Standard exists in three 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
18、 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Nor
19、way, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All ri
20、ghts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16727-2-1:2018 EBS EN 1672721:2018EN 16727-2-1:2018 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Symbols and abbrevi
21、ations . 6 5 Analytical verification . 7 6 General requirements for testing 8 7 Test arrangement and evaluation of results . 9 7.1 General 9 7.2 Verification procedure A . 10 7.3 Verification procedure B . 10 7.4 Verification procedure C . 11 8 Test report 12 Annex A (informative) Determination of t
22、he fatigue-strength curve . 14 Annex B (informative) Verification procedure C Additional information . 17 Bibliography . 20 BS EN 1672721:2018EN 16727-2-1:2018 (E) 3 European foreword This document (EN 16727-2-1:2018) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the se
23、cretariat 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 2018, and conflicting national standards shall be withdrawn at the latest by December 2018. Attention is
24、 drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held 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
25、 on airborne sound propagation Non-acoustic performance, as listed below: Part 1: Mechanical performance under static loadings Calculation and test method; Part 2-1: Mechanical performance under dynamic loadings due to passing trains Resistance to fatigue this document; Part 2-2: Mechanical performa
26、nce under dynamic loadings caused by passing trains Calculation method; Part 3: General safety and environmental requirements. It is intended to be read in conjunction with: EN 16727-1, Railway applications Track Noise barriers and related devices acting on airborne sound propagation Non-acoustic pe
27、rformance Part 1: Mechanical performance under static loadings Calculation and test method; EN 16727-2-2, Railway applications Track Noise barriers and related devices acting on airborne sound propagation Non-acoustic performance Part 2-2: Mechanical performance under dynamic loadings caused by pass
28、ing trains Calculation method. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Rep
29、ublic 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 the United Kingdom. BS EN 1672721:2018EN 16727-2-1:2018 (E) 4 Introd
30、uction Passing trains generate an air pressure wave, which impacts on noise barriers installed alongside the track. It is important that noise barriers withstand this impact without any part of them becoming detached or displaced in an unsafe manner; they should be designed for the specified require
31、ments in ultimate, serviceability and fatigue limit states. Where no design rules or sufficient experience with components are available, the design should be based on calculation and/or tests carried out in a way that provides information on the properties of the component for design in ultimate an
32、d serviceability limit states and the resistance to fatigue. This document applies for noise barrier components or for noise barriers considered as a whole. BS EN 1672721:2018EN 16727-2-1:2018 (E) 5 1 Scope This document describes the basic requirements for the verification of ultimate and serviceab
33、ility limit states and the resistance to fatigue either of the noise barrier or its components by means of analytical methods and/or tests. Analytical methods can be used for the determination of the characteristic values and design values. Where sufficient information is not available, the analytic
34、al procedure can be combined with results from tests. This document provides the following types of test procedures: test on small samples for defining detail categories, which may not be covered by Eurocodes (verification procedure A); test on a global element for defining the limit state against f
35、atigue (verification procedure B); full scale tests under a given representative loading (verification procedure C) to determine fatigue resistance of the noise barrier components for defined loading conditions; verification procedure C is given as alternative to verification procedures A and B. 2 N
36、ormative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including an
37、y amendments) applies. EN 1990:20021, Eurocode Basis of structural design EN 1992 (all parts), Eurocode 2: Design of concrete structures EN 1993 (all parts), Eurocode 3 Design of steel structures EN 1999 (all parts), Eurocode 9: Design of aluminium structures EN 16727-1, Railway applications Track N
38、oise barriers and related devices acting on airborne sound propagation Non-acoustic performance Part 1: Mechanical performance under static loadings Calculation and test method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain
39、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.org/obp 1This document is currently impacted by the amendment EN 1990:2002/A1:2005 and corrigendum EN 19
40、90:2002/A1:2005/AC:2010. BS EN 1672721:2018EN 16727-2-1:2018 (E) 6 3.1 noise barrier noise 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 railway Note 1 to entry: Noise barriers
41、 are generally made of acoustic and structural elements (3.3 and 3.4). 3.2 cladding noise reducing device, which is attached to a wall or other structure and reduces the amount of sound reflected Note 1 to entry: Claddings are generally made of acoustic and structural elements (3.3 and 3.4). 3.3 aco
42、ustic element element whose primary function is to provide the acoustic performance of the device 3.4 structural element element whose primary function is to support or hold in place acoustic elements Note 1 to entry: In some noise barriers, the acoustic function and the structural function cannot b
43、e clearly separated and attributed to different components. 3.5 added device added component that influences the acoustic performance of the original noise-reducing device (acting primarily on the diffracted energy) Note 1 to entry: In some noise barriers, the acoustic function and the structural fu
44、nction cannot be clearly separated and attributed to different components. 3.6 representative loading loading which takes into account the load effects caused by the air pressure wave of the train, the site-dependent parameters, the dynamic amplification factor and the fatigue stress behaviour of th
45、e component, including the fatigue damage accumulation Note 1 to entry: Examples of site-dependent parameters are: the design life, the number of trains per day, the maximum train speed, the spacing between the noise barrier and the rail track. 4 Symbols and abbreviations For the purposes of this do
46、cument, the following symbols and abbreviations apply. BS EN 1672721:2018EN 16727-2-1:2018 (E) 7 Table 1 Symbols and abbreviations Symbol or abbreviation Designation Unit a term for the representation of the mean value (50 % exceedance probability) of the S-N curve on a logarithmic scale - akauxilia
47、ry parameter - m factor for the representation of the mean value (50 % exceedance probability) of the S-N curve on a logarithmic scale - isingle value of the stress range Pa c,mstress range at 2 million load cycles, mean value Pa c,kcharacteristic value of the fatigue strength at 2 million load cycl
48、es Pa Rstress range of the S-N-curve Pa Nisingle value of the number of load cycles - Ncnumber of 2 million load cycles - Nc,kspread around the mean value under the assumption of a Student-t distribution - NRnumber of load cycles of the S-N-curve - xilog i- yilog Ni- x mean value of xi- y mean value
49、 of yi- n number of specimens - Sxxvariance of the random variable xi- Syyvariance of the random variable yi- Sxycovariance of the random variables xiand yi- SNstandard deviation - f auxiliary parameter for the representation of the 95 % confidence interval derived from the S-N curve on a logarithmic scale - xcauxiliary parameter - t() parameter describing the Student-t Distribution with (n-2) degrees of freedom and a 95 % confidence interval - 5
