DIN EN 14399-3-2015 High-strength structural bolting assemblies for preloading - Part 3 System HR - Hexagon bolt and nut assemblies German version EN 14399-3 2015《预加负荷用高强度结构螺栓组件 第3.pdf

1、April 2015 Translation by DIN-Sprachendienst.English price group 15No 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

2、21.060.01!%B3P“2311645www.din.deDDIN EN 14399-3High-strength structural bolting assemblies for preloading Part 3: System HR Hexagon bolt and nut assemblies;English version EN 14399-3:2015,English translation of DIN EN 14399-3:2015-04Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallb

3、au Teil 3: System HR Garnituren aus Sechskantschrauben und -muttern;Englische Fassung EN 14399-3:2015,Englische bersetzung von DIN EN 14399-3:2015-04Boulonnerie de construction mtallique haute rsistance apte la prcontrainte Partie 3: Systme HR Boulons tte hexagonale (vis + crou);Version anglaise EN

4、14399-3:2015,Traduction anglaise de DIN EN 14399-3:2015-04SupersedesDIN EN 14399-3:2006-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 30 pages 03.15 DIN EN 14399-3:2015-04 2 A comma is used as the decimal marker. National foreword T

5、his document (EN 14399-3:2015) has been prepared by Technical Committee CEN/TC 185 “Fasteners” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Mechanische Verbindungselemente (DIN Standards Committee Fasteners), Working Committee NA 06

6、7-00-07 AA Verbin-dungselemente fr den Metallbau. EN 14399-3 has been revised in connection with the publication of EN 14399-1 as a harmonized European Standard. The European Standards referred to in Clause 2 of this document have been published as the corresponding DIN EN or DIN EN ISO Standards wi

7、th the same number. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 261 DIN ISO 261 ISO 272 DIN ISO 272 ISO 965-2 DIN ISO 965-2 ISO 965-5 DIN ISO 965-5 Amendments This standard differs from DIN EN -3:2006-06 as follows: a) the title of

8、the German version has been changed: the word planmig has been deleted and Garnituren (assemblies) has been included; b) Table 1 containing the overview of the composition of structural bolting assemblies and component marking has been added; c) Annex A with detailed specifications on clamp lengths

9、and grip lengths has been added; d) specifications for the designation of the bolting assemblies have been revised. Previous editions DIN EN -3: 2005-06, 2006-06 National Annex NA (informative) Bibliography DIN ISO 261, ISO general purpose metric screw threads General plan DIN ISO 272, Fasteners Wid

10、th across flats for hexagon products DIN ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal screw threads Medium quality DIN ISO 965-3, ISO general purpose metric screw threads Tolerances Part 5: Limits of sizes for intern

11、al screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing 1439914399-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-3 February 2015 ICS 21.060.01 Supersedes EN 14399-3:2005English Version High-strength structural

12、bolting assemblies for preloading - Part 3: System HR - Hexagon bolt and nut assemblies Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 3 : Systme HR - Boulons tte hexagonale (vis + crou) Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallbau - Teil

13、 3: System HR - Garnituren aus Sechskantschrauben und -muttern This European Standard was approved by CEN on 18 October 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard w

14、ithout 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). A version in any oth

15、er 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, Cyprus, Czech Republic,

16、 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 Kingdom. EUROPEAN COMM

17、ITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14399-3:2015 EEN 14399-3:

18、2015 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 6 2 Normative references 6 3 Bolts 7 3.1 Dimensions of bolts.7 3.2 Specification for bolts and reference standard . 11 3.3 Marking of bolts 11 4 Nuts 12 4.1 Dimensions of nuts. 12 4.2 Specification for nuts and reference standards 14 4.3 Pr

19、oof load values of nuts . 15 4.4 Decarburization of the nut thread . 15 4.5 Marking of nuts . 15 5 Designation of the bolt/nut assemblies 16 6 Associated washers . 16 7 Functional characteristics of the bolt/nut/washer(s) assembly . 16 7.1 General . 16 7.2 Maximum individual value of the bolt force

20、during fitness for purpose test (Fbi,max) 17 7.3 Values of angle 1. 17 7.4 Values of angle 2. 17 7.5 Individual values of the k-factor (ki), mean value of the k-factor (km) and coefficient of variation of the k-factor (Vk) . 17 7.5.1 Individual values of the k-factor (ki) for k-class K1 17 7.5.2 Mea

21、n value of the k-factor (km) and coefficient of variation of the k-factor (Vk) for k-class K2 . 18 Annex A (normative) Clamp lengths and grip lengths . 19 A.1 Clamp lengths for bolting assemblies with one or two washers . 19 A.2 Grip lengths for bolting assemblies with one or two washers 22 Bibliogr

22、aphy . 28 DIN EN 14399-3:2015-04.EN 14399-3:2015 (E) 3 Foreword This document (EN 14399-3:2015) has been prepared by Technical Committee CEN/TC 185 “Fasteners”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of

23、an identical text or by endorsement, at the latest by August 2015 and conflicting national standards shall be withdrawn at the latest by November 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 b

24、e held responsible for identifying any or all such patent rights. This document supersedes EN 14399-3:2005. In comparison with EN 14399-3:2005, the following modifications have been made: Table 1 containing the overview of the composition of bolting assemblies and component marking has been added; t

25、he coefficient of variation of the k-factor, Vk, was changed from 0,10 to 0,06; specifications for the designation of the bolting assemblies have been revised; Annex A with detailed specifications on clamp lengths and grip lengths has been added. EN 14399 consists of the following parts, under the g

26、eneral title High-strength structural bolting assemblies for preloading: Part 1: General requirements; Part 2: Suitability for preloading; Part 3: System HR Hexagon bolt and nut assemblies; Part 4: System HV Hexagon bolt and nut assemblies; Part 5: Plain washers; Part 6: Plain chamfered washers; Par

27、t 7: System HR Countersunk head bolt and nut assemblies; Part 8: System HV Hexagon fit bolt and nut assemblies; Part 9: System HR or HV Direct tension indicators for bolt and nut assemblies; Part 10: System HRC Bolt and nut assemblies with calibrated preload. According to the CEN-CENELEC Internal Re

28、gulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,

29、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 14399-3:2015-04EN 14399-3:2015 (E) 4 Introduction This document on structural bolting reflects the situation in Europe w

30、here two technical solutions exist to achieve the necessary ductility of bolt/nut/washer(s) assemblies. These solutions consist of two different systems (HR and HV) of bolt/nut/washer assemblies, see Table 1. Both systems are well proven and it is the responsibility of the experts using structural b

31、olting whether they use the one or the other system. It is, however, important for the performance of the assembly to avoid mixing up the components of both systems. Therefore, bolts and nuts for both systems are standardized in one single part of this European Standard each and the marking of the c

32、omponents of the same system is uniform. Preloaded bolted assemblies are very sensitive to differences in manufacture and lubrication. Therefore it is important that the bolting assemblies are supplied by one manufacturer who is always responsible for the functionality of the bolting assemblies. For

33、 the same reason it is important that coating of the bolting assemblies is under the control of one manufacturer. Beside the mechanical properties of the components, the functionality of the bolting assemblies requires that the specified preload can be achieved if the bolting assemblies are tightene

34、d with a suitable procedure. For this purpose a test method for the suitability of the bolting assemblies for preloading was created, which will demonstrate whether the functionality of the bolting assemblies is fulfilled. It should be pointed out that compared to ISO 272 the widths across flats (la

35、rge series) for M12 and M20 have been changed to 22 mm and 32 mm respectively. These changes are justified by the following reasons. Under the specific conditions of structural bolting, the compressive stresses under the bolt head or nut for the sizes M12 may become too large with the width across f

36、lats of 21 mm, especially if the washer is fitted eccentrically to the bolt axis. For the size M20, the width across flats of 34 mm is very difficult to be produced. The change to 32 mm is primarily motivated by economics but it should also be pointed out that the width across flats of 32 mm was com

37、mon practice in Europe. DIN EN 14399-3:2015-04EN 14399-3:2015 (E) 5 Table 1 Composition of high-strength structural bolting assemblies and component marking Type of bolting assembly System HR System HV System HRC General requirements EN 14399-1 Suitability for preloading EN 14399-2 and, if any, addi

38、tional testing specified in the product standard Bolt and nut EN 14399-3 EN 14399-7 EN 14399-4 EN 14399-8 EN 14399-10 MarkingBolt HR8.8 HR10.9 HR8.8 HR10.9 HV10.9 HVP10.9 HRC10.9 Nut HR8 or HR10 HR10 HR8 or HR10 HR10 HV10 HV10 HR10 HRD10 Washer(s) EN 14399-5aor EN 14399-6 EN 14399-6 EN 14399-5aor EN

39、 14399-6 Marking H or HRbH or HVbH or HRbH or HRbor HDcDirect tension indicator and nut face washer or bolt face washer, if any EN 14399-9 Not applicable MarkingDirect tension indicator H8 H10 H8 H10 H10 Nut face washer HN HN Bolt face washer HB Not applicable HB aEN 14399-5 can only be used under t

40、he nut. bAt the choice of the manufacturer. cMandatory mark for washers with enlarged outer diameter according to EN 14399-5 only. DIN EN 14399-3:2015-04EN 14399-3:2015 (E) 6 1 Scope This European Standard specifies, together with EN 14399-1 and EN 14399-2, the requirements for assemblies of high-st

41、rength structural bolts and nuts of system HR suitable for preloaded joints with large widths across flats, thread sizes M12 to M36 and property classes 8.8/8 or 8.8/10 and 10.9/10. Bolting assemblies in accordance with this document have been designed to allow preloading of at least 0,7 fub As1)acc

42、ording to EN 1993-1-8 (Eurocode 3) and to obtain ductility predominantly by plastic elongation of the bolt. For this purpose the components have the following characteristics: normal nut height (style 1), see EN ISO 4032; thread length of the bolt according to ISO 888. Bolting assemblies in accordan

43、ce with this document include washers according to EN 14399-6 or to EN 14399-5 (under the nut only). NOTE Attention is drawn to the importance of ensuring that bolting assemblies are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, referen

44、ce to EN 1090-2 is made. General requirements and requirements for suitability for preloading are specified in EN 14399-2. Clamp lengths and grip lengths for the bolting assemblies are specified in the normative Annex A. 2 Normative references The following documents, in whole or in part, are normat

45、ively referenced in this document and are indispensable 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 14399-1, High-strength structural bolting assemblies for pre

46、loading - Part 1: General requirements EN 14399-2, High-strength structural bolting assemblies for preloading - Part 2: Suitability for preloading EN 14399-5, High-strength structural bolting assemblies for preloading - Part 5: Plain washers EN 14399-6, High-strength structural bolting assemblies fo

47、r preloading - Part 6: Plain chamfered washers EN 26157-1, Fasteners - Surface discontinuities - Part 1: Bolts, screws and studs for general requirements (ISO 6157-1) EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specifie

48、d property classes - Coarse thread and fine pitch thread (ISO 898-1) EN ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts with specified property classes - Coarse thread and fine pitch thread (ISO 898-2) EN ISO 3269, Fasteners - Acceptance inspection (ISO 3269) EN ISO 4759-1, Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts - Product grades A, B and C (ISO 4759-1) EN ISO 6157-2, Fasteners - Surface