DIN EN 14399-4-2015 High-strength structural bolting assemblies for preloading - Part 4 System HV - Hexagon bolt and nut assemblies German version EN 14399-4 2015《预加负荷用高强度结构螺栓组件 第4.pdf

1、April 2015 Translation by DIN-Sprachendienst.English price group 12No 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!%B3Q“2311646www.din.deDDIN EN 14399-4High-strength structural bolting assemblies for preloading Part 4: System HV Hexagon bolt and nut assemblies;English version EN 14399-4:2015,English translation of DIN EN 14399-4:2015-04Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallb

3、au Teil 4: System HV Garnituren aus Sechskantschrauben und -muttern;Englische Fassung EN 14399-4:2015,Englische bersetzung von DIN EN 14399-4:2015-04Boulonnerie de construction mtallique haute rsistance apte la prcontrainte Partie 4: Systme HV Boulons tte hexagonale (vis + crou);Version anglaise EN

4、14399-4:2015,Traduction anglaise de DIN EN 14399-4:2015-04SupersedesDIN EN 14399-4:2006-06www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 24 pages 03.15 DIN EN 14399-4:2015-04 2 A comma is used as the decimal marker. National foreword T

5、his document (EN 14399-4:2015) 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 067

6、-00-07 AA Verbin-dungselemente fr den Metallbau. EN 14399-4 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 wit

7、h 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 143 9-4:2006-06 as follows: a) the title

8、 of 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) the use of washers in accordance with EN 14399-5 h

9、as been deleted; d) the coefficient of variation of the k-factor Vkhas been changed from 0,10 to 0,06; e) specifications for the designation of the structural bolting assemblies have been revised; f) in Annex A, detailed specifications on grip lengths have been added. Previous editions DIN EN 143 9-

10、4: 2005-06, 2006-06 DIN 6914: 1962-08, 1970-12, 1979-03, 1989-10 DIN 6915: 1962-08, 1971-01, 1979-03, 1989-10, 1999-12 -99DIN EN 14399-4:2015-04 3 National Annex NA (informative) Bibliography DIN ISO 261, ISO general purpose metric screw threads General plan DIN ISO 272, Fasteners Width across Flats

11、 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 965-5, ISO general purpose metric screw threads Tolerances Part 5: Limits of sizes for internal screw thread

12、s to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing DIN EN 14399-4:2015-04 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-4 February 2015 ICS 21.060.01 Supersedes EN 14399-4:2005English V

13、ersion High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 4: Systme HV - Boulons tte hexagonale (vis + crou) Hochfeste vorspannbare Garnituren fr Schraubv

14、erbindungen im Metallbau - Teil 4: System HV - 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

15、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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French

16、, German). 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, C

17、roatia, 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey an

18、d United Kingdom. EUROPEAN COMMITTEE 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. N

19、o. EN 14399-4:2015 EEN 14399-4:2015 (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 Specifications for bolts and reference standards . 10 3.3 Marking of bolts 10 4 Nuts 11 4.1 Dimensions of nuts. 11 4.2 Specification for nuts

20、and reference standards 13 4.3 Decarburization of the nut thread . 13 4.4 Marking of nuts . 13 5 Designation of the bolt/nut assemblies 14 6 Associated washers . 14 7 Functional characteristics of the bolt/nut/washers assembly . 14 7.1 General . 14 7.2 Maximum individual value of the bolt force duri

21、ng fitness for purpose test (Fbi,max) 15 7.3 Values of angle 115 7.4 Values of angle 215 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) 16 7.5.1 Individual values of the k-factor (ki) for k-class K1 . 16 7.5.2 Mean value

22、of the k-factor (km) and coefficient of variation of the k-factor (Vk) for k-class K2 . 16 Annex A (normative) Clamp lengths and Grip lengths 17 Bibliography . 20 DINEN 14399-4:2015-04EN 14399-4:2015(E)3Foreword This document (EN 14399-4:2015) has been prepared by Technical Committee CEN/TC 185 “Fas

23、teners”, 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 identical text or by endorsement, at the latest by August 2015 and conflicting national standards shall be withdrawn at the latest by November 2016.

24、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 rights. This document supersedes EN 14399-4:2005. In comparison with EN 14399-4:2005, the foll

25、owing modifications have been made: Table 1 containing the overview of the composition of bolting assemblies and component marking has been added; the use of washers in accordance with EN 14399-5 was deleted; the coefficient of variation of the k-factor, Vk, has changed from 0,10 to 0,06; specificat

26、ions for the designation of the bolting assemblies have been revised; in Annex A detailed specifications on grip lengths been added. EN 14399 consists of the following parts, under the general title High-strength structural bolting assemblies for preloading: Part 1: General requirements; Part 2: Sui

27、tability 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; Part 7: System HR Countersunk head bolt and nut assemblies; Part 8: System HV Hexagon fit bolt and nut assemblies; Pa

28、rt 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 Regulations, the national standards organizations of the following countries are bound to implement this European St

29、andard: 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, Romania, Slovakia, Slovenia,

30、Spain, Sweden, Switzerland, Turkey and the United Kingdom. beenhaveDINEN 14399-4:2015-04EN 14399-4:2015 (E) 4 Introduction This document on structural bolting reflects the situation in Europe where two technical solutions exist to achieve the necessary ductility of bolt/nut/washers assemblies. These

31、 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 bolting whether they use the one or the other system. It is, however, important for the performance of the ass

32、embly 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 components of the same system is uniform. Preloaded bolted assemblies are very sensitive to differences in man

33、ufacture 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 the same reason it is important that coating of the bolting assemblies is under the control of one manufactu

34、rer. 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 tightened with a suitable procedure. For this purpose a test method for the suitability of the bolting assemblies for

35、 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 (large series) for M12 and M20 have been changed to 22 mm and 32 mm respectively. These changes are justified by

36、 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 flats of 21 mm, especially if the washer is fitted eccentrically to the bolt axis. For the size M20, the width

37、 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 already common practice in Europe. DIN EN 14399-4:2015-04 EN 14399-4:2015(E)5Table 1 Composition of high-strengt

38、h 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, additional testing specified in the product standard Bolt and nut EN 14399-3 EN 14399-7 EN 14399-4 EN 14399

39、-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 Washers EN 14399-5aor EN 14399-6 EN 14399-6 EN 14399-5aor EN 14399-6 Marking H or HRbH or HVbH or HRbH or HRbor HDcDirect tension indicator and nut face washer or bo

40、lt 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 the nut. bAt the choice of the manufacturer. cMandatory mark for washers with enlarged outer diameter acco

41、rding to EN 14399-5 only. DIN EN 14399-4:2015-04 EN 14399-4:2015 (E) 6 1 Scope This European Standard specifies together with EN 14399-1 and EN 14399-2, the requirements for assemblies of high-strength structural bolts and nuts of system HV suitable for preloaded joints with large widths across flat

42、s, thread sizes M12 to M36 and property classes 10.9/10. Bolting assemblies in accordance with this document have been designed to allow preloading of at least 0,7 fub As1)according to EN 1993-1-8 (Eurocode 3) and to obtain ductility predominantly by plastic deformation of the engaged threads. For t

43、his purpose the components have the following characteristics: nut height approximately 0,8 d; bolt with short thread length. Bolting assemblies in accordance with this document include washers according to EN 14399-6. NOTE Attention is drawn to the importance of ensuring that the bolting assemblies

44、 are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference 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 assembli

45、es are specified in the normative Annex A. 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 cited applies. For undated references, the latest edition of t

46、he referenced document (including any amendments) applies. EN 14399-1, High-strength structural bolting assemblies for preloading - Part 1: General requirements EN 14399-2, High-strength structural bolting assemblies for preloading - Part 2: Suitability for preloading EN 14399-5, High-strength struc

47、tural bolting assemblies for preloading - Part 5: Plain washers EN 14399-6, High-strength structural bolting assemblies for 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-

48、1, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with specified 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 f