SIST EN 12369-2:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.OHVHolzwerkstoffe - Charakteristiche Werte für die Berechnung und Bemessung von Holzbauwerken - Teil 2: SperrholzPanneaux a base de bois - Valeurs caractéristiques pour la conception structurelle - Partie 2: ContreplaquéWood-based panels - Characteristic values for structural design - Part 2: Plywood79.060.10Vezan lesPlywoodICS:Ta slovenski standard je istoveten z:EN 12369-2:2004SIST EN 12369-2:2004en01-september-2004SIST EN 12369-2:2004SLOVENSKI
STANDARD



SIST EN 12369-2:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12369-2February 2004ICS 79.060.10English versionWood-based panels - Characteristic values for structural design- Part 2: PlywoodPanneaux à base de bois - Valeurs caractéristiques pour laconception structurelle - Partie 2: ContreplaquéHolzwerkstoffe - Charakteristiche Werte für die Berechnungun Bemessung von Holzbauwerken - Teil 2: SperrholzThis European Standard was approved by CEN on 2 January 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12369-2:2004 ESIST EN 12369-2:2004



EN 12369-2:2004 (E)2ContentsPageForeword.31Scope.42Normative references.43Terms and definitions and symbols.43.1Terms and definitions.43.2Symbols.64General.65Characteristic values for plywood.75.1Introduction.75.2EN 636: Plywood: Loadbearing panels for use in bending in all conditions.75.3Characteristic values for tension and compression.85.4Characteristic values for both panel and planar shear.8Annex A (informative)
Format for the presentation of characteristic values.10Bibliography.11SIST EN 12369-2:2004



EN 12369-2:2004 (E)3ForewordThis document (EN 12369-2:2004) has been prepared by Technical Committee CEN/TC 112 “Wood-basedpanels”, 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 identicaltext or by endorsement, at the latest by August 2004, and conflicting national standards shall be withdrawn atthe latest by August 2004.This standard is intended to be used in conjunction with ENV 1995-1-1.NOTEprEN 1995-1-1 is in preparation.Annex A is informative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerlandand United Kingdom.SIST EN 12369-2:2004



EN 12369-2:2004 (E)41 ScopeThis European Standard provides information on the characteristic values for use in designing structuresincorporating wood based panels. The characteristic values given are as defined in ENV 1995-1-1.This standard includes the characteristic values of the mechanical properties for plywood complying withEN 636 and the requirements of EN 13986 when used in a bending mode.Advice on obtaining the characteristic values for tension and compression for plywood by either testing orcalculation is provided. Conservative values for shear are also included.Characteristic values for OSB, particleboards and fibreboards are given in EN 12369-1. A further part of thestandard for characteristic values of solid wood panels is in preparation.2 Normative referencesThis European Standard incorporates by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publications apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies (including amendments).EN 636, Plywood — Specifications.EN 789, Timber structures — Test methods — Determination of mechanical properties of wood-based panels.EN 1058, Wood-based panels — Determination of characteristics values of mechanical properties anddensity.ENV 1995-1-1 (Eurocode 5),
Design of timber structures — Part 1-1: General rules and rules for buildings.3 Terms and definitions and symbols3.1 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.SIST EN 12369-2:2004



EN 12369-2:2004 (E)53.1.1characteristic valuecharacteristic strength values are defined as the population 5-percentile values obtained from the results oftests with a duration of 300 s at equilibrium moisture content of the test pieces relating to a temperature of20 °C and a relative humidity of 65 %.Characteristic stiffness values are defined as either the population 5-percentile or the mean values obtainedunder the same test conditions as defined above. The stiffness values given in the tables are mean values asthese are most commonly used in design. The note in annex A explains how to calculate the 5-percentilevalue.The characteristic density is defined as the population 5-percentile value with mass and volume correspondingto equilibrium moisture content at a temperature of 20 °C and a relative humidity of 65 %. This value is used inthe design of joints in association with ENV 1995-1-13.1.2service classthree service classes are defined in ENV 1995-1-1. These are:Service class 1: is characterised by a moisture content
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