BS EN 14545-2008 Timber structures - Connectors - Requirements《木结构 连接器 要求》.pdf

1、BS EN 14545:2008ICS 91.080.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDTimber structures Connectors RequirementsLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIThis British Standardwas published under thea

2、uthority of the StandardsPolicy and StrategyCommittee on 30 April2009 BSI 2009ISBN 978 0 580 58745 0Amendments/corrigenda issued since publicationDate CommentsBS EN 14545:2008National forewordThis British Standard is the UK implementation of EN 14545:2008.The UK participation in its preparation was

3、entrusted to TechnicalCommittee B/518, Structural timber.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Complian

4、ce with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIBS EN 14545:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14545October 2008ICS 91.080.20English VersionTimber structures

5、- Connectors - RequirementsStructures en bois - Connecteurs - Exigences Holzbauwerke - Nicht stiftfrmige Verbindungselemente -AnforderungenThis European Standard was approved by CEN on 9 August 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditi

6、ons for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three off

7、icial versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria,

8、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.EUROPEAN COMMITTEE FO

9、R STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14545:2008: ELicensed Copy: Wang Bin, ISO/EXCHAN

10、GE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIBS EN 14545:2008EN 14545:2008 (E) 2 Contents Page Foreword .3 1 Scope 4 2 Normative references4 3 Terms and definitions .5 4 Symbols and abbreviations5 5 Dimensions and tolerances6 5.1 Method of measurement and accuracy.6 5.2 Length.6 5

11、.3 Width.6 5.4 Diameter .6 5.5 Thickness .6 5.6 Other dimensions 7 6 Requirements.7 6.1 Shear plates, split ring and toothed-plate connectors 7 6.1.1 Materials .7 6.1.2 Geometry7 6.1.3 Mechanical strength and stiffness.7 6.1.4 Corrosion protection.7 6.2 Punched metal plate fasteners.7 6.2.1 Material

12、s .7 6.2.2 Geometry8 6.2.3 Mechanical strength and stiffness.8 6.2.4 Corrosion protection.8 6.3 Nailing plates .9 6.3.1 Materials .9 6.3.2 Geometry9 6.3.3 Mechanical strength and stiffness.9 6.3.4 Corrosion protection.9 7 Evaluation of conformity 10 7.1 General .10 7.2 Initial type testing (ITT) .10

13、 7.2.1 General .10 7.2.2 Sampling, testing and conformity criteria 10 7.3 Factory production control (FPC)13 7.3.1 General .13 7.3.2 Control 14 8 Marking.19 8.1 General .19 8.2 Shear plate, split ring and toothed plate connectors 19 8.3 Punched metal plate fasteners.19 8.4 Nailing plates .19 Annex A

14、 (normative) Expression of corrosion protection specifications.21 Annex B (normative) Procedures for the derivation of mechanical strength and stiffness characteristics of punched metal plate fasteners22 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Con

15、struction Products Directive .27 Bibliography36 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIBS EN 14545:2008EN 14545:2008 (E) 3 Foreword This document (EN 14545:2008) has been prepared by Technical Committee CEN/TC 124 “Timber Structures”, the s

16、ecretariat of which is held by SFS. 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 April 2009, and conflicting national standards shall be withdrawn at the latest by April 2009. Attention is draw

17、n 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 document has been prepared under a mandate given to CEN by the European Commission and the Europea

18、n Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document. This standard also includes two normative annexes covering corrosion protection specifications for connectors

19、 covered by this standard, and procedures for the derivation of characteristic strength properties of punched metal plate fasteners. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austr

20、ia, 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 the United Kingdom. Licensed C

21、opy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIBS EN 14545:2008EN 14545:2008 (E) 4 1 Scope This European Standard specifies requirements and test methods for materials, geometry, strength, stiffness and durability aspects (i.e. corrosion protection) of conne

22、ctors for use in load bearing timber structures. Only connectors manufactured from steel are covered by this European Standard, like shear plates, split ring connectors, tooth plate connectors, punched metal plate fasteners and nailing plates. Definitions of these items are given in Clause 3. This E

23、uropean Standard specifies also the evaluation of conformity procedures and includes requirements for marking of these products. This European Standard does not cover connectors treated with fire retardants to improve their fire performance. 2 Normative references The following referenced documents

24、are indispensable for the application 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 912:1999, Timber fasteners - Specifications for connectors for timber EN 1075:199

25、9, Timber structures - Test methods - Joints made with punched metal plate fasteners EN 1995-1-1:2004, Eurocode 5: Design of timber structures - Part 1-1: General - Common rules and rules for buildings EN 10025-2, Hot rolled products of structural steels - Part 2: Technical delivery conditions for n

26、on-alloy structural steels EN 10029, Hot rolled steel plates 3 mm thick or above - Tolerances on dimensions, shape and mass EN 10051, Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels - Tolerances on dimensions and shape EN 10088-1, Stainless steels - Part 1: List

27、 of stainless steels. EN 10088-2, Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 10143, Continuously hot-dip coated steel sheet and strip - Tolerances on dimensions and shape EN 10204, Metallic products - Types

28、 of inspection documents EN 10292, Continuously hot-dip coated strip and sheet of steels with high yield strength for cold forming - Technical delivery conditions EN 10326, Continuously hot-dip coated strip and sheet of structural steels - Technical delivery conditions EN 10327, Continuously hot-dip

29、 coated strip and sheet of low carbon steels for cold forming -Technical delivery conditions EN 13271:2001, Timber fasteners - Characteristic load-carrying capacities and slip-moduli for connector joints Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c)

30、BSIBS EN 14545:2008EN 14545:2008 (E) 5 EN 14358:2006, Timber structures - Calculation of characteristic 5-percentile values and acceptance criteria for a sample EN 26891, Timber structures - Joints made with mechanical fasteners - General principles for the determination of strength and deformation

31、characteristics (ISO 6891:1983) EN 28970:1991, Timber structures - Testing of joints made with mechanical fasteners - Requirements for wood density (ISO 8970:1989) EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods (ISO 1461:1999) EN ISO

32、9001, Quality management systems - Requirements (ISO 9001:2000) EN ISO 9445, Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths - Tolerances on dimensions and form (ISO 9445:2002) ISO 2081, Metallic coatings - Electroplated coatings of zinc on iron or stee

33、l 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1995-1-1:2004 and the following apply. 3.1 connector shear plates, split ring connectors or tooth plate connectors as defined in EN 912 and punched metal plate fasteners or nailing plates as defined be

34、low 3.2 nailing plate flat rectangular metal plate containing pre-punched holes through which nails or screws are inserted NOTE Used either on the external faces of a joint to join two or more pieces of timber of the same thickness in the same plane or on one external face of a timber member for anc

35、horing and bracing. 3.3 punched metal plate fastener metal plate having integral projections punched out in one direction perpendicular to the base of the plate NOTE Used to join two or more pieces of timber of the same thickness in the same plane. 3.4 plate thickness nominal steel plate thickness i

36、ncluding the thickness of any corrosion protection coating 3.5 stiffness (slip modulus) the value of kserdefined in EN 26891, calculated per fastener and per shear plane 4 Symbols and abbreviations For the purposes of this standard, the symbols and abbreviations given in EN 1995-1-1:2004, EN 14358:2

37、006, EN 13271:2001, EN 912:1999 and the following ones apply. A80percentage elongation (%) dcconnector diameter defined in EN 13271 (mm) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIBS EN 14545:2008EN 14545:2008 (E) 6 fa,kcharacteristic punched m

38、etal plate anchorage capacity (N/mm2) fv,k characteristic punched metal plate shear capacity (N/mm) ft,k characteristic punched metal plate tension capacity (N/mm) fc,k characteristic punched metal plate compression capacity (N/mm) kser slip modulus per shear plane per fastener (N/mm3) ksstatistical

39、 constant defined in EN 14358 k1, k2, 0 constants used to characterise the shape of the punched metal plate anchorage capacity kv, 0 constants used to characterise the shape of the punched metal plate shear capacity l overall connector length (mm) tp metal plate thickness (mm) w overall connector wi

40、dth (mm) maximum bend angle (degrees) k characteristic timber density (kg/m3) m mean timber density (kg/m3) 5 Dimensions and tolerances 5.1 Method of measurement and accuracy Length and width of the connectors shall be measured using a device capable of achieving an accuracy of 0,5 mm. Thickness and

41、 diameter shall be measured using a calibrated device capable of achieving an accuracy of 1 %. 5.2 Length Where appropriate, the overall length of the connector shall be measured and the result declared. When sampled in accordance with Tables 2, 3 and 4 and Tables 5, 6 and 7 and measured, the overal

42、l length shall be within 1 mm/+ 2 mm or 1 %/+ 2 %, whichever is the greater, of its declared value. 5.3 Width Where appropriate, the overall width of the connector shall be measured and the result declared. When sampled in accordance with Tables 2, 3 and 4 and Tables 5, 6 and 7 and measured, the ove

43、rall width shall be within 1 mm/+ 2 mm or 1 %/+ 2 %, whichever is the greater, of its declared value. 5.4 Diameter Where appropriate, the connector diameter shall be measured and the result declared. Where tolerances on diameter are not otherwise given in EN 912, when sampled in accordance with Tabl

44、es 2 and 4 and Tables 5 and 7 and measured to an accuracy of 0,01 mm, the nominal diameter shall be within 2,5 % of its declared value. 5.5 Thickness Where appropriate, the thickness of the connector shall be measured and the result declared. When sampled in accordance with Tables 2, 3 and 4 and Tab

45、les 5, 6 and 7 and measured, the plate thickness shall be within the tolerances specified for the parent plate material being used. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 06/08/2009 02:52, Uncontrolled Copy, (c) BSIBS EN 14545:2008EN 14545:2008 (E) 7 5.6 Other dimensions Where approp

46、riate, other dimensions, e.g. tooth length, etc., shall be measured and result declared. When sampled in accordance with Tables 2 and 3 and measured these dimensions shall be within greater of 0,75 mm or 2,5 % of the specified values given. 6 Requirements 6.1 Shear plates, split ring and toothed-pla

47、te connectors 6.1.1 Materials For shear plates, split ring connectors and toothed-plate connectors manufactured from steel specified in EN 912, the minimum material specifications shall be as given in that standard. 6.1.2 Geometry For shear plates, split ring connectors and toothed-plate connectors

48、specified in EN 912, the geometric values specified (i.e. dimensions and tolerances) shall be as given in that standard. 6.1.3 Mechanical strength and stiffness For joints formed using shear plates, split ring connectors and toothed-plate connectors specified in EN 912, the following characteristics

49、 shall be determined according to EN 13271 for: a) mechanical strength: as characteristic load bearing capacity, and b) mechanical stiffness: as slip modulus. NOTE The equations for the load-bearing capacity of joints made with the connectors covered by EN 912 are given in EN 1995-1-1. 6.1.4 Corrosion protection For shear plates, split ring connectors and toothed-plate connectors covered by EN 912, the corrosion protection specifications shall be as given in that standard and shall be declared as appropriate service class according to EN 19