1、May 2010 Translation by DIN-Sprachendienst.English price group 16No part of this translation 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
2、.080.20!$bX“1635390www.din.deDDIN EN 14250Timber structures Product requirements for prefabricated structural members assembledwith punched metal plate fastenersEnglish translation of DIN EN 14250:2010-05Holzbauwerke Produktanforderungen an vorgefertigte tragende Bauteile mit Nagelplattenverbindunge
3、nEnglische bersetzung von DIN EN 14250:2010-05Structures en bois Exigences de produit relatives aux lments de structures prfabriqus utilisant desconnecteurs plaque mtallique emboutieTraduction anglaise de DIN EN 14250:2010-05SupersedesDIN EN 14250:2005-02See start of validitywww.beuth.deIn case of d
4、oubt, the German-language original shall be considered authoritative.Document comprises 34 pages05.10 DIN EN 14250:2010-05 2 A comma is used as the decimal marker. Start of validity This standard is due to take effect on 1 July 2010. DIN EN 14250:2005-02 may be used in parallel until July 2010 (see
5、deadline in the EU Official Journal). It should be noted that, in Germany, CE conformity marking of construction products will be permitted once this standard has been listed in the Bundesanzeiger (German Federal Gazette) and from the date given therein. National foreword This standard has been prep
6、ared 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 Engineering Standards Committee), Working Committee NA 005-04-01 AA Holzbau (Sp CEN/TC 124, CEN/TC 250/
7、SC 5). Amendments This standard differs from DIN EN 14250:2005-02 as follows: a) The scope has been limited to structural members to be used under predominantly static loads and excludes structural members for use in bridges. b) Normative references have been updated. c) Subclauses 4.1.3 “Dimensiona
8、l stability” and 4.1.4 “Reaction to fire” have been included. d) In subclause 4.1.5 “Resistance to biological organisms”, specifications relating to the preservative treatment have been rendered more precise. e) Clause 5 “Prefabricated member requirements” has been completely revised. f) Subclause 5
9、.4.5 “Dimensional accuracy of member” has been revised. g) Clause 6 “Product documents” has been extended to include information on drawings and structural design documentation. h) Clause 7 “Evaluation of conformity” has been completely revised. i) Annex ZA (informative) has been revised to include
10、explanatory notes regarding Methods 1, 2, 3a and 3b. j) Examples of the CE marking have been included for each method (1, 2, 3a and 3b). Previous editions DIN EN 1059: 2000-01 DIN EN 14250: 2005-02 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14250 January 2010 ICS 91.080.20 Supersedes EN 14
11、250:2004English Version Timber structures - Product requirements for prefabricated structural members assembled with punched metal plate fasteners Structure en bois - Exigences de produit relatives aux lments de structures prfabriqus utilisant des connecteurs plaque mtallique emboutie Holzbauwerke -
12、 Produktanforderungen an vorgefertigte tragende Bauteile mit Nagelplattenverbindungen This European Standard was approved by CEN on 3 December 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status o
13、f 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 ver
14、sion 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, Croatia, Cyprus, Czech Re
15、public, 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 COMIT EUROPEN
16、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14250:2010: EEN 14250:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative
17、 references 43 Terms and definitions .54 Material requirements .64.1 Timber .64.2 Punched metal plate fasteners .75 Prefabricated member requirements .85.1 Mechanical resistance .85.2 Reaction to fire .95.3 Fire resistance 95.4 Other member characteristics 96 Product documents 116.1 General . 116.2
18、Drawings and structural design information . 117 Evaluation of conformity 127.1 General . 127.2 Initial type testing . 127.3 Factory production control (FPC) . 147.4 Initial inspection of the factory and of the factory production control . 177.5 Continuous surveillance, assessment and acceptance of
19、the factory production control 178 Marking 18Annex A (normative) Additional requirements for factory production control (FPC) . 19A.1 Method 1 19A.2 Method 2 19A.3 Method 3a 19A.4 Method 3b 20Annex ZA (informative) Clauses of this European standard addressing the provisions of the EU Constructions P
20、roducts Directive . 21ZA.1 Scope and relevant characteristics 21ZA.2 Procedure for attestation of conformity of prefabricated structural timber members assembled with punched metal plate fasteners 23ZA.3 CE marking and labelling . 25Bibliography . 32DIN EN 14250:2010-05 EN 14250:2010 (E) 3 Foreword
21、This document (EN 14250:2010) has been prepared by Technical Committee CEN/TC 124 “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 July
22、 2010, and conflicting national standards shall be withdrawn at the latest by July 2010. 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 right
23、s. This document supersedes EN 14250:2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which i
24、s an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germa
25、ny, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 14250:2010-05 EN 14250:2010 (E) 4 1 Scope This European Standard specifies material, produ
26、ct and documentation requirements for prefabricated structural members (e.g. trusses for roofs, walls and floors, frames, composite beams and girders) for use in buildings made from solid structural timber according to EN 14081-1 with or without finger joints assembled with punched metal plate faste
27、ners. This document is valid for trusses with lengths up to 35 m and for other prefabricated structural members with spans up to 12 m. The standard also covers tests and/or calculation methods to carry out the evaluation of conformity, requirements for the marking of these members, and external cond
28、itions (service class 3 in accordance with EN 1995-1-1 or use classes 3, 4 and 5 in accordance with EN 335-1). As regards resistance to biological organisms, this standard covers prefabricated structural members manufactured from either untreated timber or timber treated to improve its natural durab
29、ility. This standard does not cover prefabricated timber structural members intended to be used in constructions under predominantly dynamic loads (e.g. bridges) or for use in unprotected external conditions (i.e. use class 3 in accordance with EN 335-1). Furthermore, it does not cover members treat
30、ed to improve their fire performance. 2 Normative references The following referenced documents 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 amendment
31、s) applies. EN 335-1, Durability of wood and wood-based products Definition of use classes Part 1: General EN 335-2, Durability of wood and wood-based products Definition of use classes Part 2: Application to solid wood EN 336:2003, Structural timber Sizes, permitted deviations EN 350-2, Durability
32、of wood and wood-based products Natural durability of solid wood Part 2: Guide to natural durability and treatability of selected wood species of importance in Europe EN 844-3, Round and sawn timber Terminology Part 3: General terms relating to sawn timber EN 844-9:1997, Round and sawn timber Termin
33、ology Part 9: Terms relating to features of sawn timber EN 1310, Round and sawn timber Method of measurement of features EN 1990, Eurocode Basis of structural design EN 1991 (all parts), Eurocode 1 Actions on structures EN 1995-1-1, Eurocode 5: Design of timber structures Part 1-1: General Common ru
34、les and rules for buildings EN 1995-1-2, Eurocode 5: Design of timber structures Part 1-2: General Structural fire design EN 13183-2, Moisture content of a piece of sawn timber Part 2: Estimation by electrical resistance method DIN EN 14250:2010-05 EN 14250:2010 (E) 5 EN 13501-1, Fire classification
35、 of construction products and building elements Part 1: Classification using data from reaction to fire tests EN 13501-2, Fire classification of construction products and building elements Part 2: Classification using data from fire resistance tests, excluding ventilation services EN 13823, Reaction
36、 to fire tests for building products Building products excluding floorings exposed to the thermal attack by a single burning item EN 14081-1, Timber structures Strength graded structural timber with rectangular cross section Part 1: General requirements EN 14545, Timber structures Connectors Require
37、ments EN 15228, Structural timber Structural timber preservative treated against biological attack prEN 15497, Finger jointed structural timber Performance requirements and minimum production requirements EN ISO 9001:2008, Quality management systems Requirements (ISO 9001:2008) 3 Terms and definitio
38、ns For the purposes of this document, the following terms and definitions apply. 3.1 anchorage area surface area of timber occupied by the plate projections in any particular member 3.2 batch all the structural members produced according to the same specifications in one shift 3.3 dead knot knot tha
39、t on the considered surface is intergrown with the surrounding wood for less than one quarter of the cross-sectional perimeter, as defined in EN 844-9:1997 3.4 effective thickness/width actual thickness/width as defined in EN 336:2003 minus any wane present on the edge being considered 3.5 internal
40、bracing element to prevent lateral buckling of a compression member 3.6 live knot intergrown knot knot that on the considered surface is intergrown with the surrounding wood for more than three quarters of the cross-sectional perimeter as defined in EN 844-9:1997 3.7 plate projection plate tooth, pl
41、ate nail or burst used for the purpose of transferring forces between members DIN EN 14250:2010-05 EN 14250:2010 (E) 6 3.8 punched metal plate fastener metal plate having integral projections punched out in one direction perpendicular to the base of the plate, being used to join two or more pieces o
42、f timber of the same thickness in the same plane 4 Material requirements 4.1 Timber 4.1.1 Structural timber The following requirements shall apply: a) Structural timber shall be strength graded using grading standards and methods complying with EN 14081-1. b) In addition to the specified grade requi
43、rements, structural timber shall also meet the following criteria for geometrical defects, i.e. spring, bow, twist and cup as defined in EN 844-3 and measured in accordance with EN 1310: 1) spring: 4 mm maximum per 2 m length; 2) bow: 6 mm maximum per 2 m length; 3) twist: 2 mm maximum per 25 mm wid
44、th per 2 m length; 4) cup: 2 mm maximum per 100 mm of face. 4.1.2 Finger jointed timber Finger jointed timber shall meet the requirements of prEN 15497. 4.1.3 Dimensional stability Timber complying with EN 14081-1 shall be deemed to satisfy requirements for performance of this characteristic. In add
45、ition preventive structural measures suitable for the protection from biological infestation with fungi and insects should be taken into account. NOTE Dimensional stability of the member is given as the swelling and shrinkage of timber due to changes of its moisture content in perpendicular to grain
46、 and parallel to grain direction. 4.1.4 Reaction to fire The class of reaction to fire performance of the structural timber used for the prefabricated member (including the additional classification on smoke production and flaming droplets/particles, if any) shall be determined and declared accordin
47、g to EN 13501-1: a) either without the need for further testing (CWFT), as given in Table 11), if the timber is proved to meet the requirements of the class given therein for timber without preservative treatment as well as for preservative treated timber when the preservative treatment does not res
48、ult, when dry, in an addition in the analytical zone of the treated timber of more than 2 % by mass of organic material; or 1) This table is the same as given in the Decision of the Commission 2003/43/EC of 2003-01-17 (see OJEU L 13 of 2003-01-18), as amended firstly by 2003/593/EC of 2003-08-07 (se
49、e OJEU L 201 of 2003-08-08), secondly by 2006/673/EC of 2006-10-05 (see OJEU L 276 of 2006-10-07) and thirdly by 2007/348/EC of 2007-05-15 (see OJEU L 131 of 2007-05-23), and corrected by the Corrigendum (see OJEU L 33 of 2003-02-08). DIN EN 14250:2010-05 EN 14250:2010 (E) 7 b) based on testing of the timber according to the standards referred to in EN 13501-1, when the timber does not
