SIST EN 16727-1:2018
(Main)Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance - Part 1: Mechanical performance under static loadings - Calculation and test methods
Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance - Part 1: Mechanical performance under static loadings - Calculation and test methods
This draft European Standard applies only for noise barriers composed of posts as structural elements and panels as acoustic elements (fabricated for example from metal, timber, plastic or concrete panels, etc.), including accidental combination of these materials. It also applies for acoustic claddings of existing walls and partial or total acoustic coverings of the rail track.
Acoustic elements need to be tested together with the structural elements to represent the noise barrier as in the intended use.
This draft European Standard provides criteria to verify railway noise barriers and related devices according to basic 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 draft European Standard provides test methods and criteria for the assessment of railway noise barriers with respect to their mechanical performance and stability under static loading.
Bahnanwendungen - Oberbau - Lärmschutzwände und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung - Nicht akustische Eigenschaften - Teil 1: Mechanische Eigenschaftsanforderungen unter statischen Belastungen - Berechnungs- und Prüfverfahren
Dieses Dokument gilt nur für Lärmschutzwände, die aus Pfosten als tragende Elemente und Wandelementen als akustische Elemente bestehen (z. B. hergestellt aus Metall, Holz, Kunststoff oder Beton). Sie gilt auch für akustische Verkleidungen von bereits vorhandenen Wänden und teilweise oder vollständige akustische Abdeckungen des Gleises.
Es ist wichtig, dass akustische Elemente zusammen mit den tragenden Elementen geprüft werden, damit die Probe der Lärmschutzwand dem bestimmungsgemäßen Gebrauch entspricht.
Dieses Dokument legt die Kriterien fest, mit denen Lärmschutzwände und verwandte Vorrichtungen nach den grundlegenden mechanischen Eigenschaften für übliche Belastungsbedingungen unabhängig von den verwendeten Werkstoffen verifiziert werden können. Eine Reihe von Bedingungen und optionalen Anforderungen werden festgelegt, um der großen Vielfalt in der Praxis in Europa Rechnung zu tragen. Einzelne Aspekte der Eigenschaften sind gesondert in den Anhängen enthalten.
Dieses Dokument legt die Prüfverfahren und -kriterien für die Beurteilung von Lärmschutzwänden an Schienenwegen in Bezug auf ihre mechanischen Eigenschaften und Stabilität unter statischer Belastung fest.
Applications ferroviaires - Voie - Écrans antibruit et dispositifs connexes influant sur la propagation aérienne du son - Performances non acoustiques - Partie 1 : Tenue mécanique sous charges statiques - Calcul et méthode d'essai
Le présent document s'applique uniquement aux écrans antibruit composés de poteaux en tant qu'éléments structurels et de panneaux en tant qu'éléments acoustiques (réalisés, par exemple, à partir de panneaux en métal, en bois, en plastique ou en béton). Il s'applique également aux parements acoustiques des parois existantes ou aux revêtements acoustiques partiels ou totaux de la voie ferrée.
Il est important que les éléments acoustiques soit soumis aux essais en même temps que les éléments structurels afin de représenter l'écran antibruit dans les conditions d'usage prévues.
Le présent document spécifie des critères permettant de vérifier les écrans antibruit ferroviaires et les dispositifs connexes en fonction de leurs performances mécaniques de base dans des conditions normales d'exposition, quels que soient les matériaux utilisés. Une gamme de conditions et d'exigences optionnelles est donnée afin de tenir compte de la grande diversité des pratiques en Europe. Les aspects individuels des performances sont traités séparément dans les annexes.
Le présent document fournit des méthodes d'essai et des critères d'évaluation des écrans antibruit ferroviaires en fonction de leurs performances mécaniques et de leur stabilité sous charges statiques.
Železniške naprave - Zgornji ustroj proge - Protihrupne ovire in pripadajoče naprave, ki vplivajo na širjenje zvoka po zraku - Neakustične lastnosti - 1. del: Mehansko delovanje pri statičnih obremenitvah - Računske in preskusne metode
Ta osnutek evropskega standarda se uporablja samo za protihrupne ovire, sestavljene iz drogov kot strukturnih elementov in plošč kot akustičnih elementov (izdelanih npr. iz kovinskih, lesenih, plastičnih ali betonskih plošč itd.), vključno s poljubno kombinacijo teh materialov. Uporablja se tudi za akustične obloge obstoječih zidov in delne ali celotne akustične prevleke železniške proge.
Za izvedbo predvidenega namena uporabe protihrupne ovire je treba akustične elemente preskušati skupaj s strukturnimi elementi.
Ta osnutek evropskega standarda podaja merila za preverjanje protihrupnih ovir in pripadajočih naprav za železnice v skladu z osnovnim mehanskim delovanjem pod običajnimi pogoji izpostavljenosti, ne glede na uporabljene materiale. Zaradi upoštevanja različnih praks v evropskih državah so podani številni pogoji in izbirne zahteve. Posamezni vidiki delovanja so ločeno obravnavani v dodatkih.
Ta osnutek evropskega standarda podaja preskusne metode in merila za ocenjevanje protihrupnih ovir za železnice ob upoštevanju njihovega mehanskega delovanja in stabilnosti pri statičnih obremenitvah.
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SULSDGDMRþHBahnanwendungen - Oberbau - Lärmschutzwände und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung - Nicht akustische Eigenschaften - Teil 1: Mechanische Eigenschaftsanforderungen unter statischen Belastungen - Berechnungs- und PrüfverfahrenRailway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Non-acoustic performance - Part 1: Mechanical performance under static loadings - Calculation and test methods93.100Gradnja železnicConstruction of railways17.140.30Emisija hrupa transportnih sredstevNoise emitted by means of transportICS:Ta slovenski standard je istoveten z:EN 16727-1:2018SIST EN 16727-1:2018en01-oktober-2018SIST EN 16727-1:2018SLOVENSKI
STANDARD
SIST EN 16727-1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16727-1
June
t r s z ICS
{ uä s r r English Version
Railway applications æ Track æ Noise barriers and related devices acting on airborne sound propagation æ Nonæacoustic performance æ Part
sã Mechanical performance under static loadings æ Calculation and test method Applications ferroviaires æ Voie æ Écrans antibruit et dispositifs connexes influant sur la propagation aérienne du son æ Performances non acoustiques æ Partie
s ã Tenue mécanique sous charges statiques æ Calcul et méthode d 5essai
Bahnanwendungen æ Oberbau æ Lärmschutzwände und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung æ Nicht akustische Eigenschaften æ Teil
sã Mechanische Eigenschaftsanforderungen unter statischen Belastungen æ Berechnungsæ und Prüfverfahren This European Standard was approved by CEN on
z February
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y t yæ sã t r s z ESIST EN 16727-1:2018
EN 16727-1:2018 (E) 2 Contents Page European foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Symbols and abbreviations . 7 5 Structural design . 7 5.1 General . 7 5.2 Assumptions for the design . 8 5.3 Loads on the noise barrier structure . 9 5.3.1 General . 9 5.3.2 Permanent loads . 9 5.3.3 Variable loads . 9 5.3.4 Snow loading . 10 5.3.5 Dynamic loads caused by passing trains . 10 5.3.6 Actions caused by impact loads . 10 5.3.7 Actions caused by snow clearance . 11 5.4 Design resistance . 11 5.4.1 General . 11 5.4.2 Material testing . 11 5.4.3 Full scale testing . 11 5.4.4 Calculation . 12 6 Method of verification . 12 6.1 Serviceability Limit State (SLS) . 12 6.2 Ultimate Limit State (ULS) . 12 7 Reports . 12 7.1 Evaluation report . 12 7.2 Test report . 13 7.3 Static calculation report . 13 Annex A (informative)
Correction factors for added devices of different shapes . 14 Bibliography . 16
SIST EN 16727-1:2018
EN 16727-1:2018 (E) 3 European foreword This 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 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 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 on airborne sound propagation — Non-acoustic performance, as listed below: — Part 1: Mechanical performance under static loadings — Calculation 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. 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 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 the United Kingdom. SIST EN 16727-1:2018
EN 16727-1:2018 (E) 4 Introduction Noise barriers and related devices 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 self-weight, air pressure load and impact loads that can act on the noise barrier and/or its components. Under combinations 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 effectiveness and robustness. Different materials used in the design of a noise barrier are due to be chemically compatible and not adversely affect each other’s characteristics. With specific reference to accidental actions caused by ballast stones or other debris from passing trains, minor damage may be tolerated but attention will be paid to safety, environmental and functional requirements. Shatter properties are treated in EN 16727-3. 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, 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 considered. SIST EN 16727-1:2018
EN 16727-1:2018 (E) 5 1 Scope This 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 and 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 basic 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 document 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 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 any amendments) applies. EN 1794-1:2011, Road traffic noise reducing devices — Non-acoustic performance — Part 1: Mechanical performance and stability requirements EN 1990:20021, Eurocode — Basis of structural design EN 1991 (all parts), Eurocode 1: Actions on structures EN 1991-1-4:20052, Eurocode 1: Actions on structures — Part 1-4: General actions — Wind actions EN 1992 (all parts), Eurocode 2: Design of concrete structures EN 1993 (all parts), Eurocode 3 — Design of steel structures EN 1994 (all parts), Eurocode 4 — Design of composite steel and concrete structures EN 1995 (all parts), Eurocode 5: Design of timber structures EN 1996 (all parts), Eurocode 6 — Design of masonry structures EN 1997 (all parts), Eurocode 7 — Geotechnical design EN 1998 (all parts), Eurocode 8 — Design of structures for earthquake resistance EN 1999 (all parts), Eurocode 9: Design of aluminium structures
1 This document is currently impacted by the amendment EN 1990:2002/A1:2005 and corrigendum EN 1990:2002/A1:2005/AC:2010. 2 This document is currently impacted by the amendment EN 1991-1-4:2005/A1:2010 and corrigendum EN 1991-1-4:2005/AC:2010. SIST EN 16727-1:2018
EN 16727-1:2018 (E) 6 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 passing trains — Calculation method EN ISO 291, Plastics — Standard atmospheres for conditioning and testing (ISO 291) ETAG 010:20023, Self-supporting translucent roof kits 3 Terms and definitions For 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.org/obp
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 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 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 entry: 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) 3.6 segment length of the noise barrier or cladding, within the total length, where the construction characteristics, the geotechnical conditions and the design loads are constant
3 European Technical Approval Guidelines (ETAG), established by the European Organisation for Technical Assessment (EOTA), under the Construction Products Directive (CPD) 89/106/EEC. Freely available at www.eota.eu. SIST EN 16727-1:2018
EN 16727-1:2018 (E) 7 3.7 load model simplified mathematical description of a complicated loading, such as the air pressure wave generated by passing trains 3.8 quasi-static load model load model including dynamic effects of loading 4 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply. Symbol or abbreviation Designation Unit
Inclination angle of the noise barrier to the vertical axis degrees MR MC Partial safety factors for the material/structure in accordance with the uncertainty of the model used - Cp,net Net pressure coefficient (wind) - fc t Horizontal correction factor for noise barriers having a T-top shaped added device - fc t1 Vertical correction factor for T-top shaped added devices on the windward side - fc t2 Vertical correction factor for T-top shaped added devices on the leeward side - Hzone Height difference between two adjacent zones of a noise barrier of variable height mm Hnrd Total height of acoustic elements constituting the whole noise barrier mm hae Height of a single acoustic element mm KFI Factor applicable to actions for reliability differentiation (see EN 1990) - L horizontal distance between the ends of the zones of the noise barrier with different heights mm La Greatest free length of an acoustic element (between its supporting structural elements) mm Ls Greatest length of a structural element (e.g. for a cantilever beam, it is calculated from the base) mm qp Gust wind pressure (from Eurocode) Pa 5 Structural design 5.1 General The determination of mechanical resistance and stability, including the ultimate load carrying capacity and serviceability limits, shall be undertaken on the basis of EN 1990. SIST EN 16727-1:2018
EN 16727-1:2018 (E) 8 The 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 perform 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 appropriate 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 integrity of noise barriers designed according to earlier codes and specifications. Where there are ambiguities in interpretation of the requirements, the most conservative interpretation (in terms of safety) shall be adopted. 5.2 Assumptions for the design General assumptions for the design shall be as follows: — the design temperature range during construction and use
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