SIST EN 15736:2009

Timber Structures - Test methods - Withdrawal capacity of punched metal plate fasteners

This European Standard specifies a test method to determine the withdrawal behaviour of punched metal plate fasteners.

Holzbauwerke - Prüfverfahren - Auszugtragfähigkeit von Nagelplatten

Diese Europäische Norm legt ein Prüfverfahren zur Bestimmung des Auszugverhaltens von gestanzten Nagelplatten aus Metall fest.

Structures en bois - Méthode d'essai - Résistance a l'arrachement des connecteurs a plaque métallique emboutie

La présente Norme Européenne spécifie une méthode d’essai de détermination de la capacité de résistance des connecteurs à plaque métallique emboutie.

Lesene konstrukcije - Preskusne metode - Izvlečna sila kovinskih ježastih plošč

General Information

• Status: Published
• Publication Date: 16-Nov-2009
• ICS: 91.080.20 - Timber structures
• Technical Committee: KON - Structures
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 26-Aug-2009
• Due Date: 31-Oct-2009
• Completion Date: 17-Nov-2009
• Ref Project: EN 15736:2009 - Timber Structures - Test methods - Withdrawal capacity of punched metal plate fasteners in handling and erection of prefabricated trusses

Overview

EN 15736:2009 - Timber Structures: Test methods - Withdrawal capacity of punched metal plate fasteners in handling and erection of prefabricated trusses - is a CEN European Standard that specifies a reproducible test method to determine the withdrawal behaviour (withdrawal capacity) of punched metal plate fasteners used in timber trusses. The standard assesses how fastener connections respond to accidental or handling loads between production and erection, providing data to support safe prefabricated truss design, quality control and compliance with Eurocode requirements.

Key topics and technical requirements

• Test objective: Measure withdrawal capacity of punched metal plate fasteners under handling/erection loading conditions.
• Two test methods:
  • Method 1 - Four point bending: flat-wise bending of a symmetric specimen; joint centered; span typically 18 × depth; test piece minimum length 19 × depth (or report span-to-depth ratio). Gap between timber pieces ≥ 4 mm.
  • Method 2 - Shear test: T-shaped specimen with short member at right angles; gap and support geometry specified (short member gap ≈ 10 ± 2 mm); load applied at 4 × depth from the gap.
• Material and preparation: Timber and punched metal plates must meet EN 14250 and EN 14545 respectively; timber selection per EN 28970. Conditioning at (20 ± 2) °C and (65 ± 5) % RH until constant mass is required (other conditioning to be reported).
• Measurement and loading control: Load measurement accuracy 1 %; deformation measurement accuracy 1 % or 0.02 mm for small deformations. Target time-to-maximum-load for shear tests: 300 s ± 120 s. Loading applied according to EN 26891.
• Test report requirements: Include technical specification of plates and timber, moisture content, dimensions, test method, environment, equipment, load-displacement data, failure location, and any deviations.

Applications and who uses it

EN 15736:2009 is used by:

• Timber engineers and structural designers verifying connection resilience during handling and erection;
• Prefabricated truss manufacturers for product development, factory quality control and to demonstrate durability of punched metal plate fasteners;
• Test laboratories performing mechanical tests on timber connections;
• Certification bodies and building inspectors checking compliance with Eurocode guidance (EN 1995-1-1) and national regulations. Practical uses include assessing sensitivity of connectors to accidental loads, optimizing plate/plate positioning, and producing load–displacement data for design or conformity assessment.

Related standards

• EN 1075:1999 (joints with punched metal plate fasteners)
• EN 14250 (product requirements for prefabricated members)
• EN 14545 (connector requirements)
• EN 26891 (general principles for mechanical fastener tests)
• EN 28970, ISO 3130, ISO 3131 (timber conditioning, moisture and density tests)

Keywords: EN 15736:2009, punched metal plate fasteners, withdrawal capacity, timber structures, prefabricated trusses, test method, four point bending, shear test, handling and erection.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Holzbauwerke - Prüfverfahren - Auszugtragfähigkeit von NagelplattenStructures en bois - Méthode d'essai - Résistance a l'arrachement des connecteurs a plaque métallique emboutieTimber Structures - Test methods - Withdrawal capacity of punched metal plate fasteners91.080.20Lesene konstrukcijeTimber structuresICS:Ta slovenski standard je istoveten z:EN 15736:2009SIST EN 15736:2009en,fr,de01-december-2009SIST EN 15736:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15736
August 2009 ICS 91.080.20 English Version
Timber Structures - Test methods - Withdrawal capacity of punched metal plate fasteners in handling and erection of prefabricated trusses
Structures en bois - Méthode d'essai - Résistance à l'arrachement des connecteurs à plaque métallique emboutie
Holzbauwerke - Prüfverfahren - Ausziehwiderstand von Nagelplatten unter Transport- und Montagezuständen in vorgefertigten Fachwerkträgern This European Standard was approved by CEN on 17 July 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.
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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 15736:2009: ESIST EN 15736:2009

1 Scope This European Standard specifies a test method to determine the withdrawal behaviour of punched metal plate fasteners. 2 Normative references The following referenced documents are essential to the use 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 1075:1999, Timber Structures – Test methods – Joints made with punched metal plate fasteners EN 14250, Timber Structures –Product requirements for prefabricated structural members assembled with punched metal plate fasteners EN 14545, Timber Structures – Connectors requirements EN 26891, Timber
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