EN 408:2010/FprA1
(Amendment)Timber structures - Structural timber and glued laminated timber - Determination of some physical and mechanical properties.
Timber structures - Structural timber and glued laminated timber - Determination of some physical and mechanical properties.
This European Standard specifies test methods for determining the following properties of structural timber and glued laminated timber: modulus of elasticity in bending; shear modulus; bending strength, modulus of elasticity in tension and tension strength parallel to the grain; modulus of elasticity in compression and compression strength parallel to the grain; modulus of elasticity in tension and tension strength perpendicular to the grain; modulus of elasticity in compression and compression strength perpendicular to the grain; and shear strength.
Holzbauwerke - Bauholz für tragende Zwecke und Brettschichtholz - Bestimmung einiger physikalischer und mechanischer Eigenschaften
Structures en bois - Bois de structure et bois lamellé-collé - Détermination de certaines propriétés physiques et mécaniques
Lesene konstrukcije - Konstrukcijski les in lepljeni lamelirani les - Ugotavljanje nekaterih fizikalnih in mehanskih lastnosti
General Information
- Status
- Not Published
- Technical Committee
- CEN/TC 124 - Timber structures
- Drafting Committee
- CEN/TC 124/WG 1 - Test methods
- Current Stage
- 5060 - Closure of Vote - Formal Approval
- Start Date
- 15-May-2012
- Due Date
- 13-Jun-2012
- Completion Date
- 15-May-2012
Relations
- Effective Date
- 19-Jan-2023
- Effective Date
- 02-Oct-2010
Overview
EN 408:2010/FprA1 is a CEN European standard (draft amendment A1 to EN 408:2010) that defines standardized laboratory test methods for determining key physical and mechanical properties of structural timber and glued laminated timber (glulam). Prepared by Technical Committee CEN/TC 124, the document is used to generate reproducible data for design, quality control, classification and certification of timber products used in load-bearing timber structures.
Key topics and technical requirements
The standard specifies methods to determine the following properties:
- Modulus of elasticity in bending and associated bending behaviour
- Shear modulus (G) and shear strength
- Bending strength (f m)
- Modulus of elasticity and strength in tension parallel to the grain
- Modulus of elasticity and strength in compression parallel to the grain
- Modulus of elasticity and strength in tension and compression perpendicular to the grain
Notable technical clarifications and amendments in FprA1:
- EN 384:2010 (determination of characteristic values and density) is referenced and integrated for strength-class allocation.
- Guidance on shear influence: the shear modulus G may be determined by the methods in the standard or taken as infinite when using EN 384 strength-class procedures; a typical mean shear modulus for coniferous species is indicated (reported in the amendment).
- Requirements for testing finger-jointed timber were updated: minimum specimen spans changed (e.g., from 12 to 19 times section depth in one clause; another span changed to 18 times depth) and the loading-head movement is prescribed so Fmax is reached within (300 ± 120) s.
Applications and users
Who uses EN 408:2010/FprA1:
- Test laboratories performing mechanical and physical testing on sawn timber and glulam
- Manufacturers and quality control teams for structural timber and glued laminated products
- Structural engineers and designers requiring validated material properties for calculations and safety checks
- Certification bodies and conformity assessment authorities for product classification to EN 384 strength classes
- Research organisations studying timber mechanics and new engineered wood products
Practical uses:
- Generating design values (E, G, strengths) for structural calculation and modelling
- Supporting product acceptance, production control and batch testing of glulam and sawn timber
- Providing data for strength class allocation and compliance with European timber construction rules
Related standards
- EN 384:2010 - Structural timber - Determination of characteristic values of mechanical properties and density (referenced in the amendment)
- Other CEN standards on timber testing and classification (see CEN/TC 124 publications)
Keywords: EN 408:2010/FprA1, timber structures, structural timber, glued laminated timber, modulus of elasticity, shear modulus, bending strength, EN 384, CEN.
Frequently Asked Questions
EN 408:2010/FprA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Timber structures - Structural timber and glued laminated timber - Determination of some physical and mechanical properties.". This standard covers: This European Standard specifies test methods for determining the following properties of structural timber and glued laminated timber: modulus of elasticity in bending; shear modulus; bending strength, modulus of elasticity in tension and tension strength parallel to the grain; modulus of elasticity in compression and compression strength parallel to the grain; modulus of elasticity in tension and tension strength perpendicular to the grain; modulus of elasticity in compression and compression strength perpendicular to the grain; and shear strength.
This European Standard specifies test methods for determining the following properties of structural timber and glued laminated timber: modulus of elasticity in bending; shear modulus; bending strength, modulus of elasticity in tension and tension strength parallel to the grain; modulus of elasticity in compression and compression strength parallel to the grain; modulus of elasticity in tension and tension strength perpendicular to the grain; modulus of elasticity in compression and compression strength perpendicular to the grain; and shear strength.
EN 408:2010/FprA1 is classified under the following ICS (International Classification for Standards) categories: 79.040 - Wood, sawlogs and sawn timber; 79.060.99 - Other wood-based panels; 91.080.20 - Timber structures. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 408:2010/FprA1 has the following relationships with other standards: It is inter standard links to EN 408:2010+A1:2012, EN 408:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 408:2010/FprA1 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2012
Lesene konstrukcije - Konstrukcijski les in lepljeni lamelirani les - Ugotavljanje
nekaterih fizikalnih in mehanskih lastnosti
Timber structures - Structural timber and glued laminated timber - Determination of some
physical and mechanical properties.
Holzbauwerke - Bauholz für tragende Zwecke und Brettschichtholz - Bestimmung einiger
physikalischer und mechanischer Eigenschaften
Structures en bois - Bois de structure et bois lamellé-collé - Détermination de certaines
propriétés physiques et mécaniques
Ta slovenski standard je istoveten z: EN 408:2010/FprA1
ICS:
79.040 Les, hlodovina in žagan les Wood, sawlogs and sawn
timber
91.080.20 Lesene konstrukcije Timber structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
FINAL DRAFT
EN 408:2010
NORME EUROPÉENNE
EUROPÄISCHE NORM
FprA1
December 2011
ICS 79.040; 79.060.99; 91.080.20
English Version
Timber structures - Structural timber and glued laminated timber
- Determination of some physical and mechanical properties.
Structures en bois - Bois de structure et bois lamellé-collé - Holzbauwerke - Bauholz für tragende Zwecke und
Détermination de certaines propriétés physiques et Brettschichtholz - Bestimmung einiger physikalischer und
mécaniques mechanischer Eigenschaften
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 124.
This draft amendment A1, if approved, will modify the European Standard EN 408:2010. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.
This draft amendment was established by CEN 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 versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 408:2010/FprA1:2011: E
worldwide for CEN national Members.
EN 408:2011/FprA1:2011 (E)
Contents Page
Foreword .3
1 Modification to 2 .4
2 Modification to 10.3 .
...
The standard EN 408:2010/FprA1 serves as a crucial framework within the realm of timber structures by systematically defining the test methods for assessing essential physical and mechanical properties of structural timber and glued laminated timber. Its comprehensive scope encompasses the evaluation of key characteristics, including the modulus of elasticity in bending, shear modulus, bending strength, and tension strength parallel to the grain. Furthermore, the standard addresses the modulus of elasticity and strength parameters in both compression and tension, both parallel to the grain and perpendicular to it, along with the measurement of shear strength. One of the significant strengths of EN 408:2010/FprA1 lies in its thorough approach to standardizing the determination of these fundamental properties, which are vital for ensuring the safety, reliability, and performance of timber structures. By providing a set of universally recognized test methods, the standard enhances the quality control processes associated with timber construction and enables manufacturers, engineers, and architects to make informed decisions based on consistent data. The relevance of this standard is particularly pronounced in light of the growing popularity of sustainable building materials, such as timber. As the construction industry shifts towards more environmentally friendly practices, the need for accurate measurement and transparent reporting of timber's mechanical properties becomes paramount. EN 408:2010/FprA1 not only aligns with this trend but also establishes a benchmark for quality assurance in timber structures, thus contributing to the overall integrity and longevity of building projects. In summary, EN 408:2010/FprA1 is a vital standard for practitioners in the timber industry. It provides a robust and reliable set of methodologies for determining critical properties of structural timber and glued laminated timber, thus reinforcing both safety and performance in timber construction.
Die Norm EN 408:2010/FprA1 behandelt essentielle Aspekte der Prüfung von konstruktivem Holz und verleimtem Brettschichtholz. Sie definiert standardisierte Prüfmethoden zur Bestimmung wesentlicher physikalischer und mechanischer Eigenschaften, darunter der Biegemodul, Schermodul, Biegefestigkeit sowie der Zug- und Druckfestigkeit sowohl parallel als auch senkrecht zur Faser. Die Stärken dieser Norm liegen in ihrer umfassenden Abdeckung der verschiedenen Holzarten und -konstruktionen, die im Bauwesen eingesetzt werden. Durch die Festlegung präziser Prüfverfahren trägt sie erheblich zur Qualitätssicherung und zur Sicherheit von Holzbauwerken bei. Die Norm ist besonders relevant für Ingenieure, Architekten und Bauunternehmen, da sie einheitliche Rahmenbedingungen für die Beurteilung der Leistungsfähigkeit von Holzmaterialien schafft, was letztendlich die Effizienz und Zuverlässigkeit von Bauprojekten steigert. Ein weiterer bemerkenswerter Punkt ist die internationale Anwendbarkeit dieser Norm, die einen wichtigen Beitrag zur Harmonisierung der Baustandards in Europa leistet. Die Dokumentationshilfen und Prüfmethoden sind so gestaltet, dass sie die unterschiedlichen Anforderungen und Bedingungen der Mitgliedsländer berücksichtigen. Insgesamt stellt die EN 408:2010/FprA1 eine bedeutende Ressource dar, um ein hohes Maß an Sicherheit und dauerhafte Qualität in der Holzbauindustrie zu gewährleisten.
표준 EN 408:2010/FprA1은 목재 구조물 및 접착 laminated 목재의 물리적 및 기계적 특성을 측정하기 위한 시험 방법을 규명합니다. 이 표준 문서는 구조용 목재와 접착 laminated 목재의 성능 평가에 필수적인 요소들을 포함하고 있습니다. 이 표준의 범위는 압축과 인장, 굽힘 및 전단 등 다양한 하중하에서 목재의 일관된 성능을 평가하는 데 중점을 두고 있습니다. EN 408의 강점 중 하나는 광범위한 시험 방법을 제공하여 사용자가 각 물질의 특성에 대한 명확하고 신뢰할 수 있는 데이터를 얻을 수 있도록 한다는 점입니다. 특히, 굽힘 강도, 전단 모듈러스, 압축 강도, 인장 강도 등은 건축 및 구조 엔지니어링 분야에서 중요한 요소로 사용됩니다. 이 표준은 재료의 내구성과 기능성을 보장하는 데 필수적인 정보를 제공하여, 건축물의 안전성을 높이는 데 중요한 역할을 합니다. 또한, EN 408:2010/FprA1은 유럽 전역에서 통용되는 표준으로, 해당 기준을 따름으로써 제품의 품질을 일관되게 유지할 수 있으며, 이는 시장에서의 경쟁력을 높이는 데 기여합니다. 건축 및 공학 분야에서 이 표준의 적용은 공사 현장에서의 안전성을 강화하고, 의도된 구조적 성능을 확보하는 데 핵심적인 요소로 자리잡고 있습니다.
La norme EN 408:2010/FprA1, intitulée "Structures en bois - Bois de structure et bois lamellé-collé - Détermination de certaines propriétés physiques et mécaniques", représente un cadre essentiel pour l'évaluation des performances des matériaux en bois dans les constructions. Son champ d'application est particulièrement pertinent dans le cadre de la construction durable et de l'innovation des matériaux, en permettant une meilleure compréhension et valorisation des caractéristiques mécaniques des structures en bois. Parmi les forces de cette norme, on note la diversité des propriétés physiques et mécaniques qu'elle permet de déterminer, notamment le module d'élasticité en flexion, la résistance en flexion, et les divers modules d'élasticité associés à la traction et à la compression, tant parallèle que perpendiculaire au fil du grain. Cette exhaustive approche est cruciale pour assurer la sécurité et la performance des structures en bois, offrant ainsi une base solide aux ingénieurs et architectes qui travaillent avec ces matériaux. La norme EN 408:2010/FprA1 est également d'une grande pertinence dans le contexte actuel où la recherche de matériaux écologiques et durables est en plein essor. En standardisant la manière dont les propriétés des bois de structure et du bois lamellé-collé sont mesurées, elle contribue à l'harmonisation des pratiques dans l'industrie du bâtiment, facilitant ainsi l'adhésion à des critères de qualité uniformes au niveau européen. En résumé, la norme SIST EN 408:2010/kFprA1:2012 joue un rôle clé dans l'évaluation et la validation des performances du bois en tant que matériau de construction, tout en soutenant les efforts pour promouvoir des pratiques de construction plus responsables et efficaces.
EN 408:2010/FprA1は、木材構造物に関する重要な欧州標準であり、構造用木材およびグルー接合された木材に対して、特定の物理的および機械的特性を評価するための試験方法を詳細に規定しています。この標準の範囲には、曲げにおける弾性率、せん断弾性率、曲げ強度、引張における弾性率、繊維方向の引張強度、圧縮における弾性率および繊維方向への圧縮強度、繊維方向に対する引張強度、圧縮強度、そしてせん断強度が含まれています。 この標準の強みは、これらの試験方法が科学的かつ実用的に設計されているため、構造用木材およびグルー接合木材の性能を信頼性高く評価することが可能である点にあります。これにより、建設業界における安全性と耐久性が向上し、適切な材料選定につながるため、業界全体にとって非常に価値のあるリソースとなっています。 また、EN 408は、木材構造物の適切な設計と維持管理を支援するための基盤を提供するものであり、特に持続可能な建築において重要な役割を果たしています。この標準の適用により、環境に優しい建築材料としての木材の魅力が増し、さらにその導入が促進されることとなります。 このように、EN 408:2010/FprA1は構造用材を扱う専門家にとって欠かせない標準であり、木材の特性を把握するための効果的な指針を提供します。その結果、木材の適切な利用が促され、持続可能な建築の実現が期待されます。
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