EN 338:2009
(Main)Structural timber - Strength classes
Structural timber - Strength classes
This European Standard establishes a system of strength classes for general use in structural codes.
It gives characteristic strength and stiffness properties and density values for each class and the rules for the allocation of timber populations (i.e. combinations of species, source and grade) to the classes.
This standard is applicable to all softwood and hardwood timber for structural use.
Bauholz für tragende Zwecke - Festigkeitsklassen
Diese Europäische Norm legt ein System von Festigkeitsklassen für den allgemeinen Gebrauch in Bemessungsnormen fest.
Sie gibt charakteristische Werte der Festigkeit, Steifigkeit und Rohdichte für jede Klasse sowie Regeln für die Zuordnung von Holzgrundgesamtheiten (d. h. Kombinationen von Holzarten, Herkunft und Sortierklasse) zu den Klassen an.
Diese Norm gilt für alle Nadel- und Laubhölzer für tragende Zwecke.
Bois de structure - Classes de résistance
La présente norme établit un système de classes de résistance d’utilisation générale pour les codes de calculs de structures.
Elle donne, pour chaque classe, les valeurs caractéristiques des propriétés de résistance et de rigidité et les valeurs de masse volumique, ainsi que les règles d'affectation des populations de bois (c’est-à-dire les combinaisons d’essences, de provenance et de qualités) aux classes.
Cette norme s’applique à tous les bois résineux et feuillus à usage structurel.
Konstrukcijski les - Trdnostni razredi
Ta evropski standard vzpostavlja sistem trdnostnih razredov za splošno uporabo v konstrukcijskih kodeksih. Podaja značilne trdnostne lastnosti in lastnosti togosti ter vrednosti gostote za vsak razred, ter pravila za dodeljevanje populacij lesa (t.j. kombinacij vrst, vira in stopnje) v razrede. Ta standard se uporablja za ves mehki les in trdi les, ki se uporablja za konstrukcije.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Konstrukcijski les - Trdnostni razrediBauholz für tragende Zwecke - FestigkeitsklassenBois de structure - Classes de résistanceStructural timber - Strength classes79.040Les, hlodovina in žagan lesWood, sawlogs and sawn timberICS:Ta slovenski standard je istoveten z:EN 338:2009SIST EN 338:2010en,fr,de01-april-2010SIST EN 338:2010SLOVENSKI
STANDARDSIST EN 338:20041DGRPHãþD
SIST EN 338:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 338
October 2009 ICS 79.040 Supersedes EN 338:2003English Version
Structural timber - Strength classes
Bois de structure - Classes de résistance
Bauholz für tragende Zwecke - Festigkeitsklassen This European Standard was approved by CEN on 29 September 2009.
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 bibliographical references concerning such national standards may be obtained on application to the CEN 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 responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 338:2009: ESIST EN 338:2010
EN 338:2009 (E) 2 Content page Foreword . 3Introduction . 41Scope . 52Normative references . 53Terms and definitions . 54Symbols and abbreviations . 55Classification of structural timber . 66Allocation of a timber population to a strength class. 86.1Grading . 86.1.1Visually graded timber . 86.1.2Machine graded timber . 86.2Classification . 86.2.1Characteristic values . 86.2.2Allocation to a strength class . 8Annex A (informative)
Determination of values in addition to bending strength, stiffness and density . 9Bibliography . 10 SIST EN 338:2010
EN 338:2009 (E) 3 Foreword This document (EN 338:2009) has been prepared by Technical Committee CEN/TC 124 “Timber structures”, the secretariat of which is held by SFS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorseme
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