BS EN 1383-2016 Timber structures Test methods Pull through resistance of timber fasteners《木结构 试验方法 木结构紧固件的抗拉穿性能》.pdf

1、BSI Standards PublicationBS EN 1383:2016Timber structures Testmethods Pull throughresistance of timber fastenersBS EN 1383:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1383:2016. Itsupersedes BS EN 1383:1999 which is withdrawn.The UK participation in its

2、 preparation was entrusted to TechnicalCommittee B/518, Structural timber.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctappl

3、ication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 85800 0ICS 91.080.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Commit

4、tee on 29 February 2016.Amendments issued since publicationDate Text affectedBS EN 1383:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORMEN 1383 February 2016 ICS 91.080.20 Supersedes EN 1383:1999English Version Timber structures - Test methods - Pull through resistance of timber fasteners Struc

5、tures en bois - Mthodes dessais - Rsistance la traverse de la tte dlments de fixation travers le bois Holzbauwerke - Prfverfahren - Prfung von Holzverbindungsmitteln auf Kopfdurchziehen This European Standard was approved by CEN on 19 December 2015. CEN members are bound to comply with the CEN/CENEL

6、EC 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-CENELEC Management Centre or

7、 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-CENELEC Management Centre has the same status as the offi

8、cial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,

9、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of e

10、xploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1383:2016 EBS EN 1383:2016EN 1383:2016 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Symbols and abbreviations . 5 5 Materials . 7 5.1 Timber

11、 and wood-based products 7 5.2 Fasteners 7 6 Test methods 7 6.1 General 7 6.2 Conditioning 7 6.3 Fabrication of test pieces . 7 6.4 Apparatus . 7 6.5 Test procedure . 7 6.6 Test results . 10 6.7 Test report 10 Bibliography . 11 BS EN 1383:2016EN 1383:2016 (E) 3 European foreword This document (EN 13

12、83:2016) has been prepared by Technical Committee CEN/TC 124 “Timber Structures”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2016, and confli

13、cting national standards shall be withdrawn at the latest by August 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This documen

14、t supersedes EN 1383:1999. Compared to EN 1383:1999, the following changes have been made: replacement of EN 28970 by EN ISO 8970; improvement to figures and definitions. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to i

15、mplement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma

16、nia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1383:2016EN 1383:2016 (E) 4 1 Scope This European Standard specifies the test method for determining the resistance of timber to the head pull through of timber fasteners. In this standard timber includes solid

17、 timber, glued laminated timber and wood-based products. The test method applies to all types of nails, screws and staples excluding screws with fully threaded shank. 2 Normative references The following documents, in whole or in parts, are normatively referenced in this document and are indispensab

18、le for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 322, Wood-based panels - Determination of moisture content EN 323, Wood-based panels - Determination of density E

19、N 14592, Timber structures Dowel-type fasteners Requirements EN 26891:1991, Timber structures - Joints made with mechanical fasteners - General principles for the determination of strength and deformation characteristics (ISO 6891:1983) EN ISO 8970:2010, Timber structures - Testing of joints made wi

20、th mechanical fasteners - Requirements for wood density (ISO 8970:2010) ISO 13061-1, Physical and mechanical properties of wood Test methods for small clear wood specimens Part 1: Determination of moisture content for physical and mechanical tests ISO 13061-2, Physical and mechanical properties of w

21、ood Test methods for small clear wood specimens Part 2: Determination of density for physical and mechanical tests 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 staple double-bent, u-shaped piece of round, square, rectangular or oval wire w

22、ith pointed legs 3.2 staple crown connection between the two staple legs 3.3 staple leg diameter nominal diameter of a round staple leg, the side length of a rectangular leg, or the diameter of an oval cross section as defined in EN 14592 3.4 staple length length of each staple leg, including point

23、BS EN 1383:2016EN 1383:2016 (E) 5 3.5 staple crown width width across the staple legs 3.6 head pull through parameter parameter measuring the resistance of a timber test piece to the pulling through of the head of a timber fastener or the crown of a staple Note 1 to entry See Figures 1 and 2.Note 2

24、to entry For other timber fasteners the definitions of EN 14592 apply. 4 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply. a staple crown width, see Figure 1, in millimetres D(I.2)dimensions of hole in steel plate in millimetres d nominal val

25、ue of the diameter of the fastener as defined in EN 14592, in millimetres dheffective diameter of fastener head (for nails or screws), or, see Figure 1, width of staple crown, in millimetres. For a non-circular head dhis the diameter of a circle with an area equal to that of the head Fmaxmaximum pul

26、l through load, in newtons fheadpull through parameter, in newtons per square millimetres t timber thickness, in millimetres crnangle between the direction of a staple crown and the grain direction or the main direction of the wood based products, respectively, see Figure 2, in degreesBS EN 1383:201

27、6EN 1383:2016 (E) 6 Keydhis head diameter a is staple crown width Figure 1 Staple, screw and nail dimensions Key 1 is the fibre direction Figure 2 Angle between the staple direction and the grain direction or the main direction BS EN 1383:2016EN 1383:2016 (E) 7 5 Materials 5.1 Timber and wood-based

28、products The solid timber shall be selected in accordance with the method given in EN ISO 8970:2010. The specification of the LVL, glued laminated timber and wood-based products shall be established. The products used for the individual test pieces shall be representative of the class or range of pr

29、oduct to which they belong and the relevant properties shall be declared. 5.2 FastenersThe specification of nails, screws or staples shall be established. 6 Test methods 6.1 General The moisture content and density of the timber or wood-based products at test shall be determined as specified in ISO

30、13061-1, ISO 13061-2, EN 322 and EN 323 as appropriate. 6.2 Conditioning The test pieces shall be manufactured with the timber or wood based products at an equilibrium moisture content corresponding to (20 2) C and (65 5) % relative humidity. The material is conditioned when it attains constant mass

31、. Constant mass is considered to be attained when the results of two successive weightings, carried out at an interval of 6 h, do not differ by more than 0, 1 % off the mass of the material. For certain investigations other moisture conditioning can be appropriate, and shall be reported. 6.3 Fabrica

32、tion of test pieces The axis of the fastener shall be perpendicular to the surface, see Figure 3. The insertion of fasteners shall follow normal preparation (e.g. pre-boring) and practice. The test piece size shall be as given in Table 1. Where the test pieces are of solid timber, half of the fasten

33、ers shall be inserted radially to the growth rings and half tangentially to the growth rings. Test shall be made with test pieces with crn= 30. If wood-based products are included in the test piece the test shall be carried out at either crn= 30 or crn= 60, whichever gives the smallest load carrying

34、 capacity. Table 1 Test pieces Test piece material Test piece size (minimum) Solid timber 4 t x 4 t Where t 7 dWood based products 4 t x 4 t Where t = panel thickness as produced 6.4 Apparatus The pieces shall be tested in an apparatus as shown in Figure 4. 6.5 Test procedure The apparatus used shal

35、l be as required in Clause 7 of EN 26891:1991. The test piece shall be placed in a device ensuring the application of the pull through force along the axis of the fastener. BS EN 1383:2016EN 1383:2016 (E) 8 Pull the fastener through the test piece material with a continuous movement of the head of t

36、he testing machine. The rate of movement shall be such that the time taken to reach Fmaxis 300s 120s. Determine Fmaxto an accuracy of 1 %. Key a nails or screws b staples Figure 3 Test specimens for pulling through testing BS EN 1383:2016EN 1383:2016 (E) 9 Key 1 Steel plate with a circular hole (dia

37、meter D) for nails and screws and a rectangular hole (side lengths D1and D2) for staples. D (2t + dh) D1 (2t + a) D2 (2t + dh) Figure 4 Test arrangement for pull through testing BS EN 1383:2016EN 1383:2016 (E) 10 6.6 Test results The pull through parameter, fhead, shall be determined from the equati

38、ons: =maxhead2hFfdfor nails and screws (1) or =maxhdheadFfafor staples (2) The symbols are as given in Clause 4. 6.7 Test report The test report shall contain the following information: a) sampling procedure; b) specification of the timber; c) dimensions, density, moisture content and conditioning h

39、istory of the test pieces; d) diagram showing the layout of the fasteners and the method of insertion used in the test pieces; e) angle, crn, between staple crown and grain as used in the test; f) number of test pieces used; g) specification (including shape, geometry, dh) and number of fasteners (t

40、ype, sizes, material, surface coating or condition and other particulars); h) time to failure; i) individual test results, including Fmax, mean values and standard deviations, and description of the mode of failure. NOTE Characteristic values can be determined using EN 14358. BS EN 1383:2016EN 1383:

41、2016 (E) 11 Bibliography 1 EN 1381, Timber structures - Test methods - Load bearing stapled joints 2 EN 14358, Timber structures - Calculation of characteristic 5-percentile values and acceptance criteria for a sample This page deliberately left blankThis page deliberately left blankBSI is the natio

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