BS EN 409-2009 Timber structures — Test methods Determination of the yield moment of dowel type fasteners1.pdf
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1、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? BS EN 409:2009 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 409 April 2009 ICS 91.080.20Supersedes EN 409:1993 English Version Timber structures - Test methods - Determination of the yield moment of dowel type fasteners Structures
2、 en bois - Mthodes dessais - Dtermination du moment plastique des organes dassemblage de type tige Holzbauwerke - Prfverfahren - Bestimmung des Fliemoments von stiftfrmigen Verbindungsmitteln This European Standard was approved by CEN on 2 November 2006. CEN members are bound to comply with the CEN/
3、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
4、 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 versio
5、ns. 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, Spa
6、in, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Me
7、mbers. Ref. No. EN 409:2009: E BS EN 409:2009 EN 409:2009 (E) 2 Contents Page Foreword 3 1Scope 4 2Normative references 4 3Terms and definitions .4 4Symbols and abbreviations 4 5Requirements .4 6Test methods 5 6.1Principle 5 6.2Materials .5 6.3Apparatus .6 6.4Preparation of the specimen 6 6.5Loading
8、 procedure 6 6.6Results 7 6.7Test report 7 Annex A (informative) Bending apparatus9 ? BS EN 409:2009 EN 409:2009 (E) 3 Foreword This document (EN 409:2009) has been prepared by Technical Committee CEN/TC 124 “ Timber structures” , the secretariat of which is held by SFS. This European Standard shall
9、 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. This document supersedes EN 409:1993. The following changes have been introdu
10、ced in this version of EN 409: - references added in Clause 2; - symbols added in 4; - text of 6.5 modified and extended; - Figure 4 added; - items added in 6.7. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
11、this European Standard: 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 U
12、nited Kingdom. ? BS EN 409:2009 EN 409:2009 (E) 4 1 Scope This European Standard specifies a method for determining the yield moment of dowel type fasteners. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only t
13、he edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14592, Timber structures Dowel-type fasteners Requirements 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1
14、dowel type fastener fasteners specified in EN 14592 3.2 yield moment bending moment when the specimen is deformed through a prescribed rotation angle 4 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply. d nominal dowel type diameter according
15、to EN 14592, in millimetres F1, F3maximum support loads on the dowel type fastener, in newtons F2, F4test loads applied to the dowel type fastener, in newtons l1, l3distances between loading points and the nearest support, in millimetres, see Figure 1 l2 free length of the nail in millimetres, see F
16、igure 1 My yield moment of the dowel type fastener, in newton millimetres , ?1, ?2 rotation angle, in degrees ?k is the characteristic density of the timber, in kg/m3 ft is the tensile strength of the fastener, N/mm2 5 Requirements The requirements for dowel type fasteners as given in EN 14592 apply
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