DIN EN 16727-2-2-2016 Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance - Part 2-2 Mechanical perfor.pdf

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1、November 2016 English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 93.100!%p“2587794www.din.deDIN

2、EN 16727-2-2Railway applications Track Noise barriers and related devices acting on airborne sound propagation Nonacoustic performance Part 22: Mechanical performance under dynamic loadings caused by passing trains Calculation method;English version EN 1672722:2016,English translation of DIN EN 1672

3、7-2-2:2016-11Bahnanwendungen Oberbau Lrmschutzwnde und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung Nicht akustische Eigenschaften Teil 22: Mechanische Eigenschaftsanforderungen unter dynamischen Belastungen infolge Zugverkehr Berechnungsverfahren;Englische Fassung EN 1672722:

4、2016,Englische bersetzung von DIN EN 16727-2-2:2016-11Applications ferroviaires Voie crans antibruit et dispositifs connexes influant sur la propagation arienne du son Performances non acoustiques Partie 22: Tenue mcanique sous charges dynamiques dues la circulation ferroviaire Mthode de calcul;Vers

5、ion anglaise EN 1672722:2016,Traduction anglaise de DIN EN 16727-2-2:2016-11www.beuth.deDocument comprises 24 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.11.16 DIN EN 16727-2-2:2016-11 2 A comma is used as the decimal marke

6、r. National foreword This document (EN 16727-2-2:2016) has been prepared by Technical Committee CEN/TC 256 “Railway applications” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Fahrweg und Schienenfahrzeuge (DIN Standards Committee Railwa

7、y), Working Committee NA 087-00-01-11 UA Lrmschutzwnde an Schienenwegen. This standard is based on the English reference version. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16727-2-2 May 2016 ICS 93.100 English Version Railway applications - Track - Noise barriers and related devices actin

8、g on airborne sound propagation - Non-acoustic performance - Part 2-2: Mechanical performance under dynamic loadings caused by passing trains - Calculation method Applications ferroviaires - Voie - crans antibruit et dispositifs connexes influant sur la propagation arienne du son - Performances non

9、acoustiques - Partie 2-2: Tenue mcanique sous charges dynamiques dues la circulation ferroviaire - Mthode de calcul Bahnanwendungen - Oberbau - Lrmschutzwnde und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung - Nicht akustische Eigenschaften - Teil 2-2: Mechanische Eigenschaftsa

10、nforderungen unter dynamischen Belastungen infolge Zugverkehr - Berechnungsverfahren This European Standard was approved by CEN on 12 March 2016. 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

11、 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 any CEN member. This European Standard exists in three official versions (English, French, German).

12、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 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyp

13、rus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kin

14、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16727-

15、2-2:2016 E2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Symbols and abbreviations . 6 5 Quasi-static equivalent load model 7 5.1 Application requirements 7 5.2 Air pressure wave . 7 5.3 Quasi-static equivalent load 7 5.4 Length

16、factor . 7 5.5 Height factor . 8 5.6 Dynamic factor . 9 6 Relevant load model position of the air pressure wave at noise barriers 11 6.1 Load qDS11 6.2 Mid-post . 11 6.3 End-post . 12 6.4 Corner-post 13 6.5 Panel . 14 7 Internal forces on a post 15 7.1 General . 15 7.2 Static system 16 7.3 Internal

17、forces on a post 16 8 Calculation report 16 Annex A (informative) Natural frequency of the wall system . 17 Annex B (informative) Example of use 20 Bibliography . 22 EN 16727-2-2:2016 (E) DIN EN 16727-2-2:2016-11 3 European foreword This document (EN 16727-2-2:2016) has been prepared by Technical Co

18、mmittee 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 publication of an identical text or by endorsement, at the latest by November 2016, and conflicting national standards shall be withd

19、rawn at the latest by November 2016. 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 responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by

20、the European Commission and the European Free Trade Association. This European Standard 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 st

21、atic loadings Calculation and test methods currently at Enquiry stage; Part 2-1: Mechanical performance under dynamic loadings due to passing trains Resistance to fatigue currently at Enquiry stage; Part 2-2: Mechanical performance under dynamic loadings caused by passing trains Calculation method p

22、ublished; Part 3: General safety and environmental requirements currently at Enquiry stage. It should be read in conjunction with: EN 1990, Eurocode Basis of structural design; EN 1991-2, Eurocode 1: Actions on structures Part 2: Traffic loads on bridges; EN 1992 series, Eurocode 2: Design of concre

23、te structures; EN 1993 series, Eurocode 3: Design of steel structures; EN 1997 series, Eurocode 7: Geotechnical design; EN 1999 series, Eurocode 9: Design of aluminium structures; EN 14067-4, Railway applications Aerodynamics Part 4: Requirements and test procedures for aerodynamics on open track. A

24、ccording 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 Republic of Macedonia, France, Germ

25、any, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. EN 16727-2-2:2016 (E) DIN EN 16727-2-2:2016-11 4 Introduction Passing trains generate pr

26、essure variations in the shape of air pressure waves which impact on noise barriers installed alongside the track. Noise barriers need to withstand this impact without any part of them becoming detached or displaced in a way that creates a safety hazard for passing trains or people. This European st

27、andard presents a calculation method to assess the capacity of noise barriers having a post-and-panel structure with piled foundations to resist this pressure variation including an allowance for dynamic response of the structure. The air pressure wave generated by a passing train is described in te

28、rms of two block loads in EN 1991-2:2003, 6.6.2. For calculating realistic static and dynamic actions on noise barriers, it is necessary to consider also the shape of the air pressure wave and the dynamic effects. EN 16727-2-2:2016 (E) DIN EN 16727-2-2:2016-11 5 1 Scope This European standard define

29、s the loading, the relevant load model positions and the internal forces acting on noise barriers, due to the air pressure wave set out in EN 1991-2:2003, 6.6.2. The vertical and horizontal shapes of the air pressure wave and the dynamic effects have been taken into account. The calculation method d

30、escribed in this European standard has been developed for noise barriers having a post-and-panel structure with piled foundations. It can also be used where cladding is attached to a rigid structure. For structures with piled foundations, an empirical formula for determination of the natural frequen

31、cy is given in Annex A. Annex B contains an example of application of the calculation method for determination of internal forces and moments acting on a mid-post. The design of noise barriers (e.g. to fatigue resistance) is not part of this standard. 2 Normative references The following documents,

32、in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1991-2:2003, Eurocode 1: Acti

33、ons on structures - Part 2: Traffic loads on bridges 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 noise barrier noise reducing device, which obstructs the direct transmission of airborne sound emanating from railways and which will typical

34、ly span between posts and also may overhang the railway Note 1 to entry: Noise barriers 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:

35、Claddings are generally made of acoustic and structural elements (3.3 and 3.4). 3.3 acoustic 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 en

36、try: In some noise barriers the acoustic function and the structural function cannot be 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

37、) EN 16727-2-2:2016 (E) DIN EN 16727-2-2:2016-11 6 3.6 load model simplified mathematical description of a complicated loading, such as the air pressure wave generated by a passing train 3.7 quasi-static load model load model including dynamic effects of loading 4 Symbols and abbreviations For the p

38、urposes of this document, the following symbols and abbreviations apply. agdistance of wall system surface from the centreline of the track in m a spacing to a post or between two posts along track in m f first natural frequency of the wall system in Hz h wall height above rail top in m hm height be

39、tween the surface of the ground and the top of the rail hu height between the top of the pile and the surface of the ground L influence length in m lmeffective influence length for the calculation of a mid-post Mmaxmaximum bending moment in kNm/m Mpostbending moment of a post in kNm q1kloading accor

40、ding to EN 1991-2:2003, 6.6.2, in kN/m2without considering the factor k2qDSquasi-static load for the air pressure wave due to a passing train at an elevation z above rail top considering the influence length, wall height and dynamic effects in kN/m2qpostloading for a post in kN/m with reference to p

41、ost height sDShorizontal spacing between the two relevant load model positions of the air pressure wave for maximum structural reactions, in m Vmaxmaximum shear force in kN/m Vpostshear force of a post in kN Vtraintrain velocity in m/s (design speed) z elevation above rail top in m, where the quasi-

42、static equivalent load shall be calculated. For elevations z 1,5: dyn= 1,10 EN 16727-2-2:2016 (E) DIN EN 16727-2-2:2016-11 10 Figure 1 Dynamic factor dynThe ratio tis given by: =DSttrainsfV(4) where sDSis the horizontal spacing between the two relevant load model positions of the air pressure wave f

43、or maximum structural reactions, in metres. It depends on the influence length as shown in Table 3. Table 3 Parameter sDSL (m) 0,0 2,5 5,0 7,5 10,0 12,5 15,0 sDS(m) 8,3 8,4 8,8 9,3 10,0 10,8 11,8 For the panels: influence length L = span length, in m. For the posts: influence length L = sum of the a

44、djacent and track-parallel span lengths of panels, in m; Vtrainis the train velocity in m/s (design speed of the line); f is the first natural frequency of the wall system, in Hz. The first natural frequency of the wall system shall be determined by considering all relevant parameters. For most nois

45、e barriers with piled foundations it should be sufficient to use the formulae for natural frequency provided in Annex A, the application limits are satisfied. However, if the application limits set out in Annex A are not satisfied, it is necessary to calculate the natural frequency for the wall syst

46、em under consideration from first principles. The dynamic factor dynshall be calculated for the various structural segments using the natural frequency of the wall system and the influence length L of the wall segment in question. When the natural frequency is to be (or wanted to be) calculated, the

47、 following shall be considered: EN 16727-2-2:2016 (E) DIN EN 16727-2-2:2016-11 11 a) For vertical variation of the horizontal dynamic soil modulus, it shall be assumed that the modulus has a value of zero at the ground surface, increasing linearly to its maximum value at a depth of 3 m, and then rem

48、aining constant at its maximum value for depths greater than 3 m. Piled foundations used on slopes will require a specific analysis to take account of the changing direction of loading and the inclination of the ground. b) The dynamic foundation parameters for design, as well as guidance on the poss

49、ible loss of soil restraint to the upper part of the pile, and how this should be taken into account, shall be obtained from the soil report. c) The degree of restraint to noise barriers provided by adjacent structures (e.g. noise barrier on retaining walls) shall be assessed by considering the stiffness of the combined structural system and the anchorage details. d) Noise barriers made of co