SIST EN 16784:2016
(Main)Timber structures - Test methods - Determination of the long term behaviour of coated and uncoated dowel-type fasteners
Timber structures - Test methods - Determination of the long term behaviour of coated and uncoated dowel-type fasteners
This European Standard specifies a test method for the determination of the long duration withdrawal strength of coated and uncoated dowel-type fasteners in structural timber and timber products and wood based products for structural application.
The method applies to all types of nails, screws and staples.
Holzbauwerke - Prüfverfahren - Bestimmung des Langzeitverhaltens beschichteter und unbeschichteter stiftförmiger Verbindungsmittel
Diese Europäische Norm legt ein Prüfverfahren zur Bestimmung der Langzeit-Ausziehtragfähigkeit von beschichteten und unbeschichteten stiftförmigen Verbindungs¬mitteln in Holz, Holzprodukten und Holzwerkstoffen für tragende Zwecke fest.
Das Prüfverfahren gilt für alle Typen von Nägeln, Schrauben und Klammern.
Structures en bois - Méthodes d'essai - Détermination du comportement à long terme des éléments de fixation de type tige, revêtus ou non
La présente norme européenne définit une méthode d'essai permettant de déterminer la résistance à l'arrachement à long terme d'éléments de fixation de type tige revêtu ou non revêtu insérés dans du bois de structure, des produits en bois ou des matériaux à base de bois destinés à être utilisés dans des applications structurelles.
Cette méthode s'applique à tous les types de pointes, de vis et d'agrafes.
Lesene konstrukcije - Preskusne metode - Ugotavljanje dolgoročnega obnašanja premazanih in nepremazanih paličastih veznih sredstev
Ta evropski standard določa preskusne metode ugotavljanja dolgoročnega obnašanja premazanih in nepremazanih paličastih veznih sredstev pri nosilnih lesenih konstrukcijah (žeblji, sponke, vijaki, mozniki in sorniki z maticami).
General Information
- Status
- Published
- Public Enquiry End Date
- 30-Dec-2014
- Publication Date
- 16-Aug-2016
- Technical Committee
- KON.005 - Timber structures
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 21-Jul-2016
- Due Date
- 25-Sep-2016
- Completion Date
- 17-Aug-2016
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Refers
SIST EN 1382:2016 - Timber Structures - Test methods - Withdrawal capacity of timber fasteners - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
SIST EN 16784:2016 establishes a standardized test method for evaluating the long-term withdrawal strength of coated and uncoated dowel-type fasteners in structural timber and wood-based products. Issued by CEN, this European Standard applies to fasteners such as nails, screws, and staples, and is crucial for ensuring the durability and performance of timber connections in structural applications. Long-term behaviour assessment of fasteners supports safe and reliable design, especially where connections are subject to sustained loads over many years.
Key Topics
- Withdrawal Strength Testing: Methods for assessing the long-duration withdrawal resistance of dowel-type fasteners in timber, including both coated and uncoated variants.
- Applicability: Testing procedures are relevant for a wide range of fastener types, such as nails, screws, and staples, used in structural timber assemblies and wood-based products.
- Sampling and Preparation: Guidance on representative sampling of both timber and fasteners, specimen fabrication with fastener axis placed either perpendicular or parallel to the grain, and moisture conditioning to reflect service conditions.
- Test Procedure:
- Control of environmental conditions, including temperature and humidity
- Insertion and positioning of fasteners to prevent load transfer eccentricities
- Application and maintenance of withdrawal loads until failure or test termination
- Measurement of time to failure at different load levels
- Result Interpretation:
- Calculation and reporting of load duration factors (kd,T)
- Linear regression analysis of load level versus log time to failure
- Reporting Requirements: Mandatory details for inclusion in test reports, such as timber and fastener specifications, specimen conditioning, layout diagrams, and comprehensive result summaries.
Applications
SIST EN 16784:2016 is a key reference for professionals and organizations involved in the design, manufacture, and certification of timber structures, including:
- Timber Construction: Engineers and builders use the standard to select and validate fasteners for applications where connections are critical, such as beams, joists, and trusses in residential, commercial, and industrial buildings.
- Product Development: Manufacturers of fasteners and timber products apply the test method to demonstrate compliance and improve product performance under long-term load conditions.
- Third-Party Certification and Quality Control: Testing laboratories and certification bodies rely on SIST EN 16784:2016 for benchmarking fastener performance as part of safety and quality assurance programs.
- Research and Structural Design: The standard assists researchers and structural designers in modeling long-term behaviour of timber joints and supports safe use under sustained loads.
Protocols in SIST EN 16784:2016 support compliance with Eurocode 5 (EN 1995-1-1), providing essential data for the structural design of timber buildings across Europe and internationally.
Related Standards
For comprehensive assessment and integration into broader structural design and testing regimes, SIST EN 16784:2016 should be used alongside the following key standards:
- EN 1382: Timber structures - Test methods - Withdrawal capacity of timber fasteners
- EN 26891:1991: Timber structures - Joints made with mechanical fasteners - General principles for the determination of strength and deformation characteristics (ISO 6891:1983)
- EN 1995-1-1: Eurocode 5 - Design of timber structures - General rules and rules for buildings
- EN 14592: Timber structures - Dowel-type fasteners - Requirements
- EN ISO 8970: Timber structures - Testing of joints made with mechanical fasteners - Requirements for wood density
- ISO 13061-1 & ISO 13061-2: Test methods for small clear wood specimens - Determination of moisture content and density
By referring to these standards, users can ensure a robust approach to the testing and specification of fasteners in timber structures, enhancing structural safety, long-term durability, and regulatory compliance.
Get Certified
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DIBt (Deutsches Institut für Bautechnik)
German Institute for Building Technology.
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Aboma Certification B.V.
Specialized in construction, metal, and transport sectors.
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Frequently Asked Questions
SIST EN 16784:2016 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Timber structures - Test methods - Determination of the long term behaviour of coated and uncoated dowel-type fasteners". This standard covers: This European Standard specifies a test method for the determination of the long duration withdrawal strength of coated and uncoated dowel-type fasteners in structural timber and timber products and wood based products for structural application. The method applies to all types of nails, screws and staples.
This European Standard specifies a test method for the determination of the long duration withdrawal strength of coated and uncoated dowel-type fasteners in structural timber and timber products and wood based products for structural application. The method applies to all types of nails, screws and staples.
SIST EN 16784:2016 is classified under the following ICS (International Classification for Standards) categories: 91.080.20 - Timber structures. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 16784:2016 has the following relationships with other standards: It is inter standard links to SIST EN ISO 8130-13:2019, SIST EN ISO 8130-14:2019, SIST EN ISO 8970:2020, SIST EN 26891:1997, SIST EN 1382:2016, SIST EN ISO 1101:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 16784:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Holzbauwerke - Prüfverfahren - Bestimmung des Langzeitverhaltens beschichteter und unbeschichteter stiftförmiger VerbindungsmittelStructures en bois - Méthodes d'essai - Détermination du comportement à long terme des éléments de fixation de type tige, revêtus ou nonTimber structures - Test methods - Determination of the long term behaviour of coated and uncoated dowel-type fasteners91.080.20Lesene konstrukcijeTimber structuresICS:Ta slovenski standard je istoveten z:EN 16784:2016SIST EN 16784:2016en,fr,de01-september-2016SIST EN 16784:2016SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16784
June
t r s x ICS
{ sä r z rä t r English Version
Timber structures æ Test methods æ Determination of the long term behaviour of coated and uncoated dowelætype fasteners Structures en bois æ Méthodes d 5essai æ Détermination du comportement à long terme des éléments de fixation de type tigeá revêtus ou non
Holzbauwerke æ Prüfverfahren æ Bestimmung des Langzeitverhaltens beschichteter und unbeschichteter stiftförmiger Verbindungsmittel This European Standard was approved by CEN on
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t r s xä
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 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:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y z vã t r s x ESIST EN 16784:2016
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