1、September 2013 Translation by DIN-Sprachendienst.English price group 13No 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).
2、ICS 79.060.01!%(t“2058199www.din.deDDIN EN 12871Wood-based panels Determination of performance characteristics for load bearing panels foruse in floors, roofs and walls;English version EN 12871:2013,English translation of DIN EN 12871:2013-09Holzwerkstoffe Bestimmung der Leistungseigenschaften fr tr
3、agende Platten zur Verwendung inFubden, Wnden und Dchern;Englische Fassung EN 12871:2013,Englische bersetzung von DIN EN 12871:2013-09Panneaux base de bois Dtermination des caractristiques de performance des panneaux travaillants utiliss enplanchers, toitures et murs;Version anglaise EN 12871:2013,T
4、raduction anglaise de DIN EN 12871:2013-09SupersedesDIN EN 12871:2010-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 28pages08.13 DIN EN 12871:2013-09 2 A comma is used as the decimal marker. National foreword This document (EN 12871
5、:2013) has been prepared by Technical Committee CEN/TC 112 “Wood-based panels” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Holzwirtschaft und Mbel (Timber and Furniture Standards Committee), Working Committee NA 042-02-15 AA Holzwerkst
6、offe Spiegelausschuss zu CEN/TC 112 und ISO/TC 89. Amendments This standard differs from DIN EN 12871:2010-06 as follows: a) the title of the standard has been changed, because this standard now only deals with determining performance characteristics; b) in Annex B, proposals for national performanc
7、e requirements are given; Annex B includes a new reduction factor for ultimate limit state; c) for soft body impact tests, 3 impact classes have been defined to describe the performance; they can be related to load categories as suggested in Annex B; d) this standard does not include testing of rack
8、ing behaviour nor uniformly distributed loads as these are covered by testing according to EN 594 or calculation according to EN 1995-1-1 respectively; e) in Annex B, the possibility to increase the span in dependence of the roof slope has been included; f) the reference for the statistical evaluati
9、on of the results has been changed to EN 1058; g) the load pad used for point load testing is now 50 mm x 50 mm in all cases, see Annex A. Previous editions DIN EN 12871: 2001-09, 2010-06 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12871 June 2013 ICS 79.060.01 Supersedes EN 12871:2010Engli
10、sh Version Wood-based panels - Determination of performance characteristics for load bearing panels for use in floors, roofs and walls Panneaux base de bois - Dtermination des caractristiques de performance des panneaux travaillants utiliss en planchers, toitures et murs Holzwerkstoffe - Bestimmung
11、der Leistungseigenschaften fr tragende Platten zur Verwendung in Fubden, Wnden und Dchern This European Standard was approved by CEN on 1 May 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
12、 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 to any CEN member. This European Standard exists in three official versions (English, French, German)
13、. 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 official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, C
14、yprus, 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
15、Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12871:2013: EEN
16、 12871:2013 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Symbols and subscripts .9 4.1 Symbols 9 4.2 Subscripts . 10 5 General requirements . 10 5.1 Specification of panels intended for load-bearing application 10 5.2 Mechanical prope
17、rties 11 5.2.1 General . 11 5.2.2 Concentrated load on structural floor or roof decking on joists . 11 5.2.3 Soft body impact test . 11 5.3 Sampling 11 6 Determination of performance characteristics 12 6.1 General Recommendations . 12 6.1.1 Dimensional tolerances: length and width 12 6.1.2 Dimension
18、al tolerances: thickness. 12 6.1.3 Dimensional changes: linear expansion 12 6.1.4 Discrepancy at joints between panels 12 6.1.5 Edge profile of tongued and grooved or similar panels . 12 6.2 Structural floor or roof decking on joists . 13 6.2.1 General . 13 6.2.2 Determination of stiffness character
19、istics (serviceability limit state) for concentrated load 13 6.2.3 Determination of the serviceability load corresponding to the elasticity limit 13 6.2.4 Determination of Fmax,k13 6.2.5 Determination of Impact Class for soft body impact 13 6.3 Structural wall sheathing on studs . 14 6.3.1 General .
20、 14 6.3.2 Soft body impact test . 15 7 Evaluation 15 7.1 Concentrated load 15 7.2 Impact load 15 8 Report 15 Annex A (normative) Modification to EN 1195 . 17 A.1 Scope . 17 A.2 Modification to EN 1195 . 17 Annex B (informative) Proposal for performance requirements . 18 B.1 Introduction . 18 B.2 Con
21、centrated load 18 B.2.1 General . 18 B.2.2 Serviceability limit state . 19 B.2.3 Ultimate limit state 19 B.2.4 Increase of span Las a function of roof slope . 20 B.3 Soft body impact . 21 DIN EN 12871:2013-09 EN 12871:2013 (E) 3 B.3.1 General . 21 B.3.2 Requirements . 21 Annex C (informative) Exampl
22、e . 22 C.1 General . 22 C.2 Features of the end use 22 C.2.1 Decking for flooring in housing applications . 22 C.2.2 Decking for an accessible cold roof (load category I) . 22 C.3 Type testing values of the component 22 C.3.1 Main features of the testing (according to EN 1195) . 22 C.3.2 Results 22
23、C.4 Values for the calculation parameters 23 C.5 Determination of the Limit States of the component and compliance to recommended requirements 23 C.5.1 Ultimate Limit State (according to B.2.3) 23 C.5.2 Serviceability Limit State (according to B.2.2) . 24 C.5.3 Summarisation . 24 Bibliography 25 DIN
24、 EN 12871:2013-09 EN 12871:2013 (E) 4 Foreword This document (EN 12871:2013) has been prepared by Technical Committee CEN/TC 112 “Wood-based panels”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identica
25、l text or by endorsement, at the latest by December 2013, and conflicting national standards shall be withdrawn at the latest by December 2013. 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 r
26、esponsible for identifying any or all such patent rights. This document supersedes EN 12871:2010. Compared to EN 12871:2010, the following changes have been made: a) the title of the standard has been changed, because this standard now only deals with determining performance characteristics; b) prop
27、osals for national performance requirements are given in Annex B; Annex B includes a new reduction factor for ultimate limit state; c) for soft body impact tests, 3 impact classes have been defined to describe the performance; they can be related to load categories as suggested in Annex B; d) this s
28、tandard does not include testing of racking behaviour nor uniformly distributed loads as these are covered by testing according to EN 594 or calculation according to EN 1995-1-1 respectively; e) the possibility to increase the span in dependence on the roof slope was included to Annex B; f) the refe
29、rence for the statistical evaluation of the results has been changed to EN 1058; g) the load pad used for point load testing is now 50 mm x 50 mm in all cases, see Annex A. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to
30、 implement 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, Ro
31、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12871:2013-09 EN 12871:2013 (E) 5 Introduction This European Standard provides methods for determining performance characteristics for concentrated loads and impact on wood-based panels used for structural f
32、loor or roof decking and for impact on wood-based panels used for wall sheathing. This European Standard takes the approach of type testing specific structures. This approach yields an optimised design since the results from the testing shall apply only to one specific design. This revision incorpor
33、ates experiences from use, adopts the load area for concentrated load defined in EN 1991-1-1 and the evaluation methods from EN 1058. This European Standard contains an informative annex with proposals for national requirements to the characteristics determined by this European Standard, based on Eu
34、rocodes and national annexes. DIN EN 12871:2013-09 EN 12871:2013 (E) 6 1 Scope This European Standard specifies: concentrated load test and assessment methods for floor and roof decking; soft body impact assessment methods and classification system for floors, roofs and walls. This European Standard
35、 does not include racking testing or uniformly distributed loads as these are covered by testing according to EN 594 or calculation according to EN 1995-1-1 respectively. This European Standard specifies the procedure for determining the performance characteristics through type testing, of load-bear
36、ing wood-based panels fitted on: a) structural joists for decking: 1) in flooring applications in load categories A, B, C and D; 2) in roof applications in load categories H and I; for which type testing involves: i) punching shear under concentrated loading; ii) vertical soft body impact; b) studs
37、for walling application for which type testing involves: 1) pendular soft body impact. Annex A (normative) lists modifications to EN 1195, particularly the contact area of the loading head that may be used for concentrated loading. Annex B (informative) provides proposals for national performance re
38、quirements. Annex C (informative) provides examples for a decking application in a floor and a roof. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cite
39、d applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 2.1 General EN 596, Timber structures Test methods Soft body impact test of timber framed walls EN 789, Timber structures Test methods Determination of mechanical properties of wood b
40、ased panels EN 1058, Wood-based panels Determination of characteristic 5-percentile values and characteristic mean values EN 1156, Wood-based panels Determination of duration of load and creep factors EN 1195, Timber structures Test methods Performance of structural floor decking DIN EN 12871:2013-0
41、9 EN 12871:2013 (E) 7 EN 1990:2002, Eurocode Basis of structural design EN 1991-1-1, Eurocode 1: Actions on structures Part 1-1: General actions Densities, self-weight, imposed loads for buildings EN 1995-1-1:2004, Eurocode 5: Design of timber structures Part 1-1: General Common rules and rules for
42、buildings 2.2 Product standards EN 300, Oriented Strand Boards (OSB) Definitions, classification and specifications EN 312, Particleboards Specifications EN 622-2, Fibreboards Specifications Part 2: Requirements for hardboards EN 622-3, Fibreboards Specifications Part 3: Requirements for medium boar
43、ds EN 622-5, Fibreboards Specifications Part 5: Requirements for dry process boards (MDF) EN 634-2, Cement-bonded particleboards Specifications Part 2: Requirements for OPC bonded particleboards for use in dry, humid and external conditions EN 636, Plywood Specifications EN 13353, Solid wood panels
44、(SWP) Requirements EN 14279, Laminated Veneer Lumber (LVL) Definitions, classification and specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 service class 1 service class 1 is characterised by a moisture content in the materials
45、corresponding to a temperature of 20 C and the relative humidity of the surrounding air only exceeding 65 % for a few weeks per year SOURCE: EN 1995-1-1:2004, 2.3.1.3 3.2 service class 2 service class 2 is characterised by a moisture content in the materials corresponding to a temperature of 20 C an
46、d the relative humidity of the surrounding air only exceeding 85 % for a few weeks per year SOURCE: EN 1995-1-1:2004, 2.3.1.3 3.3 service class 3 service class 3 is characterised by climatic conditions leading to higher moisture contents than in service class 2 SOURCE: EN 1995-1-1:2004, 2.3.1.3 DIN
47、EN 12871:2013-09 EN 12871:2013 (E) 8 3.4 serviceability limit states SLS states that correspond to conditions beyond which specified service requirements for a structure or structural member are no longer met SOURCE: EN 1990:2002, 1.5.2.14. 3.5 ultimate limit states ULS states associated with collap
48、se or with other similar forms of structural failure SOURCE: EN 1990:2002, 1.5.2.13 Note 1 to entry: Specifically to this standard, it applies to the maximum force Fmaxapplied to the tested component. 3.6 characteristic value value of a material or product property having a prescribed probability of not being attained in a hypothetical unlimited test series Note 1 to entry: This value generally corresponds to a specified fractile of the assumed statistical distributi
