1、July 2009DEUTSCHE NORM English price group 10No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91.080.20!$Xt“1538191www.
2、din.deDDIN EN 1380Timber structures Test methods Load bearing nails, screws, dowels and boltsEnglish version of DIN EN 1380:2009-07Holzbauwerke Prfverfahren Tragende Verbindungen mit Ngeln, Schrauben, Stabdbeln und BolzenEnglische Fassung DIN EN 1380:2009-07SupersedesDIN EN 1380:2000-03www.beuth.deD
3、ocument comprises 16 pagesDIN EN 1380:2009-07 2 National foreword This standard has been prepared by Technical Committee CEN/TC 124 “Timber structures” (Secretariat: SFS, Finland). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineerin
4、g Standards Committee), Technical Committee NA 005-04-01 AA Holzbau (Spiegelausschuss von CEN/TC 124, CEN/TC 250/SC 5). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN shall not be held responsible for identifying any or all s
5、uch patent rights. Amendments This standard differs from DIN EN 1380:2000-03 as follows: a) The standard has been editorially revised. b) Subclause 6.5 “Test procedure” has been added. c) In subclause 6.7 “Test report”, item k) relating to displacement transducers and pick-up points has been added.
6、Previous editions DIN EN 1380: 2000-03 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1380 April 2009 ICS 91.080.20 Supersedes EN 1380:1999 English Version Timber structures Test methods Load bearing nails, screws, dowels and bolts Structures en bois Mthode dessai Pointes, tire-fonds, broches
7、et boulons porteurs Holzbauwerke Prfverfahren Tragende Verbindungen mit Ngeln, Schrauben, Stabdbeln und Bolzen This European Standard was approved by CEN on 2 November 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europ
8、eanStandard 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
9、, 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, Belgium, Bulgaria, Cyp
10、rus, 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 FOR STANDARDIZATION COM
11、IT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, 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 1380:2009: EContents Page Foreword 3 1 Scope 4 2 Normative referen
12、ces 4 3 Terms and definitions .5 4 Symbols and abbreviations 5 5 Requirements .5 5.1 Timber .5 5.2 Wood-based products .5 5.3 Metal plates and dowel type fasteners 5 6 Test methods 6 6.1 General 6 6.2 Conditioning .6 6.3 Fabrication of the test pieces .6 6.4 Preparation of the test pieces 6 6.4.1 Lo
13、ad parallel to grain 6 6.4.2 Load perpendicular to grain .8 6.4.3 Determination of relative displacements . 13 6.5 Test procedure 13 6.6 Test results 13 6.7 Test report . 13 DIN EN 1380:2009-07EN 1380:2009 (E)2Foreword This document (EN 1380:2009) has been prepared by Technical Committee CEN/TC 124
14、“Timber structures”, the secretariat 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 October 2009, and conflicting national standards shall be withdrawn at the latest by O
15、ctober 2009. This document supersedes EN 1380:1999. The first version of this European Standard was published in September 1999 and considered only connections with nails. When the product standard for dowel type fasteners EN 14592 became available the scope of EN 1380 was expanded. Therefore, this
16、revised version covers dowel type fasteners as nails, screws, dowels and bolts. Connections with load bearing staples are considered in EN 1381:1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europea
17、n 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 United Kingdo
18、m. DIN EN 1380:2009-07EN 1380:2009 (E)31 Scope This European Standard specifies test methods for determining the strength and deformation characteristics of laterally loaded connections with nail, screws, dowels and bolts in load-bearing timber structures. The methods assess connections with members
19、 of timber (solid timber or glued laminated timber) or wood-based products or metal plates (but not punched metal plate fasteners) in the combination proposed for use in service. The methods are used to determine load-slip characteristics and maximum load of connections where various angles between
20、the applied force and the timber grain direction, or the main direction of the wood-based products, respectively, are possible. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For
21、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 EN 13183-2, Moisture content of a piece of sawn timber Part 2: Estimation by electrical
22、 resistance method EN 14080, Timber structures Glued laminated timber Requirements EN 14081-1, Timber structures Strength graded structural timber with rectangular cross section Part 1: General requirements EN 14358, Timber structures Calculation of characteristic 5-percentile values and acceptance
23、criteria for a sample EN 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 28970, Timber structures Testing of joint
24、s made with mechanical fasteners Requirements for wood density (ISO 8970:1989) ISO 3131, Wood Determination of density for physical and mechanical tests DIN EN 1380:2009-07EN 1380:2009 (E)43 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 defor
25、mation of the connection mean value of the measurements of the relative displacements of the members 3.2 dowel type fasteners elements such as nails, screws, dowels and bolts as defined by EN 14592 4 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations
26、 apply. b width of member cross-section, in millimetres F load, in newtons t member thickness, in millimetres 5 Requirements 5.1 Timber The timber (solid timber or glued laminated timber) shall satisfy the requirements of EN 14080, EN 14081-1 and shall be selected in accordance with either of the me
27、thods given in EN 28970. For each test piece, the individual members to be joined shall be selected to ensure a test piece of balanced density. For a group of similar test pieces, separate planks shall be used for each test piece. NOTE The members should be free from major defects, which could lead
28、to premature failure in the area away from the fasteners. 5.2 Wood-based products The specification of the wood based products shall be established. The products used for the individual members of the test pieces shall be representative of the class or range of product to which they belong and the r
29、elevant properties shall be declared. One unique grade shall be used to make the test pieces. For each test piece, the individual members in the connection shall be selected from separate pieces of material. 5.3 Metal plates and dowel type fasteners The specification of the metal plates shall be est
30、ablished. The requirements for dowel type fasteners as given in EN 14592 apply. DIN EN 1380:2009-07EN 1380:2009 (E)56 Test methods 6.1 General The moisture content and density of the timber or wood-based products members at test shall be determined as specified in EN 13183-2, ISO 3131, EN 322 and EN
31、 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 (85 5) % relative humidity. The material is conditioned when it attains constant mass. Constant mass is considered to be
32、 attained when the results of two successive weightings, carried out at an interval of 6 h, do not differ by more than 0,1 % of the mass of the material. After manufacture but prior to testing the test pieces shall be stored for at least one week at (20 2) C and (65 5) % relative humidity. For certa
33、in investigations other moisture conditioning can be appropriate, and shall be reported. NOTE For some hardwoods a much longer storing period can be necessary or the test pieces should be made with appropriate gaps between the members. 6.3 Fabrication of the test pieces If there are no special requi
34、rements, timber members shall be planed. Test pieces shall be fabricated with the fasteners perpendicular to the member surface. The insertion of the dowel type fasteners shall follow normal preparation (e.g. pre-boring) and practice, which shall be reported. The number of fasteners shall reflect th
35、e actual use in practice. In principle the connection is symmetrical with respect to the direction of the load comprising the geometry of the timber members and number and penetration depth of the fasteners. For nails and screws the depth of the fastener head indentation will have an influence on th
36、e test result, particularly for connections loaded in double shear. Therefore, if the fabrication technique permits the fastener heads shall protrude above the surface. 6.4 Preparation of the test pieces 6.4.1 Load parallel to grain For connections with fasteners that do not pass fully through all m
37、embers: - consisting solely of timber or wood-based products (or combinations thereof) the test pieces shall be fabricated either as a) three-member connections with dowel type fasteners from each side, loaded in single shear, see Figure 1, or b) three-member connections with dowel type fasteners fr
38、om each side, loaded in double shear, see Figure 2. The minimum end length l is 50 mm as shown in Figures 1 and 2 may not be appropriate to thin timber or wood-based products subjected to compression loads. - with metal plates connected with dowel type fasteners to timber or wood-based products memb
39、ers, the test pieces shall be fabricated either as DIN EN 1380:2009-07EN 1380:2009 (E)6a) single shear test pieces with dowel type fasteners from each side and with the side members of metal plates, or b) double shear test pieces with dowel type fasteners from each side and with the metal plate as c
40、entral member. Key 1 grain direction 2 not protruding end 3 protruding end 4 displacement pick-up points l free length t1side member width t2middle member NOTE Dowels and bolts will usually protrude at the outer faces of the side members. Figure 1 Example of a three timber member connection with not
41、 fully penetrating dowel type fasteners loaded in single shear and with the positions of displacement pick up points DIN EN 1380:2009-07EN 1380:2009 (E)7Key 1 grain direction 2 not protruding end 3 protruding end 4 displacement pick-up points l free length t1side member width t2middle member NOTE Do
42、wels and bolts will usually protrude at the outer faces of the side members. Figure 2 Example of a three timber member connection with not fully penetrating dowel type fasteners, loaded in double shear and with the position of displacement pick up points 6.4.2 Load perpendicular to grain For connect
43、ions with fasteners that do not fully pass through all members: - consisting solely of timber or wood-based products (or combinations thereof) the test pieces shall be fabricated either as a) three-member connections with dowel type fasteners from each side, loaded in single shear, see Figures 3 and
44、 4, or b) three-member connections with dowel type fasteners from each side, loaded in double shear, see Figures 5 and 6. DIN EN 1380:2009-07EN 1380:2009 (E)8The minimum end length l = 50 mm as shown in Figures 3 to 6 may not be appropriate to thin timber or wood-based products subjected to compress
45、ion loads. Key 1 grain direction 2 not protruding end 3 protruding end 4 displacement pick-up points l free length t1side member width t2middle member Figure 3 Example of a three timber member connection with not fully penetrating dowel type fasteners loaded single shear, side members loaded perpend
46、icular to grain and with the positions of displacement pick up points DIN EN 1380:2009-07EN 1380:2009 (E)9Key 1 grain direction 2 not protruding end 3 protruding end 4 displacement pick-up points l free length t1side member width t2middle member Figure 4 Example of a three timber member connection w
47、ith not fully penetrating dowel type fasteners loaded single shear with a central member loaded perpendicular to grain and the position of displacement pick up points - with metal plates to timber or wood based products members, the test pieces shall be fabricated either as a) single shear test piec
48、es with dowel type fasteners from each side and with the side members of metal plates, or DIN EN 1380:2009-07EN 1380:2009 (E)10b) double shear test pieces with dowel type fasteners from each side and with the metal plate as central member. Key 1 grain direction 2 not protruding end 3 protruding end
49、4 displacement pick-up points l free length t1side member width t2middle member Figure 5 Example of a three timber member connection with not fully penetrating dowel type fasteners loaded double shear with side members loaded perpendicular to grain with the position of displacement load pick-up points DIN EN 1380:2009-07EN 1380:2009 (E)11Key 1 grain direction 2 not protruding end 3 protruding end 4 displacement pick-up points l free length t1side member width t2middle member Figure 6 Example of a three tim
