EN 14399-10-2018 en High-strength structural bolting assemblies for preloading - Part 10 System HRC - Bolt and nut assemblies with calibrated preload.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06High-strength structural bolting assemblies for preloadingPart 10: System HRC - Bolt and nut assemblies with calibrated preloadBS EN 14399-10:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-10 May 2018 IC

2、S 21.060.01 Supersedes EN 14399-10:2009English Version High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 10 : Systme HRC - Boulons (vis

3、 + crou + rondelle) prcontrainte calibre Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallbau - Teil 10: System HRC - Garnituren aus Schrauben und Muttern mit kalibrierter Vorspannung This European Standard was approved by CEN on 22 October 2017. CEN members are bound to comply with

4、 the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard 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-CENELEC Manage

5、ment Centre or to any CEN member. This European Standard exists in three official versions (English, French, 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 stat

6、us as the official versions. CEN members are the national standards bodies of 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

7、, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brusse

8、ls 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14399-10:2018 ENational forewordThis British Standard is the UK implementation of EN 14399-10:2018. It supersedes BS EN 14399-10:2009, which is withdrawn.The UK participation

9、in its preparation was entrusted to Technical Committee FME/9/-/2, Fasteners for structural bolting.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are res

10、ponsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 92175 9ICS 21.060.01Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Stand

11、ards Policy and Strategy Committee on 31 May 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 14399-10:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-10 May 2018 ICS 21.060.01 Supersedes EN 14399-10:2009English Version High-strength structura

12、l bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 10 : Systme HRC - Boulons (vis + crou + rondelle) prcontrainte calibre Hochfeste vorspannbare Garnituren fr

13、Schraubverbindungen im Metallbau - Teil 10: System HRC - Garnituren aus Schrauben und Muttern mit kalibrierter Vorspannung This European Standard was approved by CEN on 22 October 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givin

14、g this European Standard 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three offic

15、ial versions (English, French, 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

16、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, Serbia, Slovakia, Slovenia,

17、Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved w

18、orldwide for CEN national Members. Ref. No. EN 14399-10:2018 EBS EN 14399-10:2018EN 14399-10:2018 (E) 2 Contents Page European foreword . 3 Introduction 5 1 Scope 7 2 Normative references 7 3 Terms and definitions . 8 4 Bolts . 9 4.1 Dimensions of bolts 9 4.2 Specification for bolts and reference st

19、andards . 16 4.3 Marking of bolts 17 5 Nuts . 17 5.1 Dimensions of nuts 17 5.2 Specification for nuts and reference standards 19 5.3 Proof load values of nuts . 20 5.4 Decarburization of the nut thread . 20 5.5 Marking of nuts . 20 6 Designation of bolt/nut assemblies. 21 7 Associated washers . 21 8

20、 Functional characteristics of bolt/nut/washer(s) assemblies 21 8.1 General . 21 8.2 Suitability test for preloading 22 8.2.1 General . 22 8.2.2 Test results . 23 8.3 Suitability test for calibrated preload 24 8.4 Requirements 24 Annex A (informative) Clamp lengths and grip lengths 26 Bibliography .

21、 28 BS EN 14399-10:2018EN 14399-10:2018 (E) 3European foreword This document (EN 14399-10:2018) has been prepared by Technical Committee CEN/TC 185 “Fasteners”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of

22、an identical text or by endorsement, at the latest by November 2018 and conflicting national standards shall be withdrawn at the latest by November 2018. 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

23、 be held responsible for identifying any or all such patent rights. This document supersedes EN 14399-10:2009. In comparison with EN 14399-10:2009, the following modifications have been made: Table 1 containing the overview of the marking of components of bolting assemblies for preloading was added;

24、 specifications for the designation of the bolting assemblies have been revised; dimensions and markings of HRC bolts with countersunk heads have been added; dimensions and limiting values of M36 diameter bolts and nuts have been added; the requirement for the coefficient of variation has been revis

25、ed. EN 14399 consists of the following parts, under the general 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

26、: 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 Part 9: System HR or HV Direct tension indicators for bolt and nut assemblies Part 10: System HRC Bolt and nut assemblies with calibrated p

27、reload BS EN 14399-10:2018EN 14399-10:2018 (E) 4 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, F

28、ormer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14399-10:2018EN 14399-10

29、:2018 (E) 5Introduction This document on structural bolting reflects the situation in Europe where two technical solutions exist to achieve the necessary ductility of bolt/nut/washer(s) assemblies. These solutions consist of two different types (HR and HV) of bolt/nut/washer assemblies, see Table 1.

30、 Both types are well proven and it is the responsibility of the experts using structural bolting whether they use the one or the other type. It is, however, important for the performance of the assembly to avoid mixing up the components of both types. Therefore, bolts and nuts for both types are sta

31、ndardized in one single part of this European Standard each and the marking of the components of the bolting assemblies 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

32、manufacturer, who is always responsible for the functionality of the bolting assemblies as supplied. For 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 bolti

33、ng 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 preloading was created, which will demonstrate whether the functionality of the boltin

34、g assemblies is fulfilled. It should be pointed out that compared to ISO 272 the width across flats (large 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 compres

35、sive 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 across flats of 34 mm is very difficult to be produced. The change to 32 mm is primaril

36、y motivated by economics but it should also be pointed out that the width across flats of 32 mm was common practice in Europe. BS EN 14399-10:2018EN14399-10:2018(E)6Table1Compositionofhigh-strength structuralboltingassembliesand componentmarkingType ofboltingassemblySystemHRSystemHVSystemHRCGeneralr

37、equirementsEN143991Suitability forpreloadingEN143992and,ifany,additionaltestingspecified intheproductstandardBoltandnutEN143993EN143997EN143994EN143998EN1439910Marking BoltHR8.8HR10.9HR8.8HR10.9HV10.9HVP10.9HRC10.9NutHR8orHR10HR10HR8orHR10HR10HV10HV10HR10HRD10Washer(s)EN143995aorEN143996EN143996EN14

38、3995aorEN143996MarkingH orHRbHorHVbH orHRbH orHRbor HDcDirecttensionindicatorandnutface washerorboltfacewasher,if anyEN143999NotapplicableMarking DirecttensionindicatorH8H10H8H10H10NutfacewasherHNHNBolt facewasherHBNotapplicableHBaEN143995canonlybeusedunderthenut.bAt thechoiceofthemanufacturer.cMand

39、atorymarkforwasherswith enlargedouterdiameteraccordingtoEN14399-5only.BS EN 14399-10:2018EN 14399-10:2018 (E) 7 1 Scope This document specifies, together with EN 14399-1 and EN 14399-2, the requirements for assemblies of high-strength structural bolts and nuts of system HRC suitable for preloaded jo

40、ints, with hexagon head (large width across flats), cup head or countersunk head, thread sizes M12 to M36 and property class 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

41、 ductility predominantly by plastic elongation of the bolt. For this purpose the components have the following characteristics: regular nut height according to style 1, see EN ISO 4032; or nut with height m = 1 D; thread length of the bolt according to ISO 888. Bolting assemblies in accordance with

42、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 the bolting assemblies are correctly used if satisfactory results are to be obtained. For recommendations concerning proper application, reference t

43、o EN 10902 is made. General requirements and requirements for suitability for preloading are specified in EN 14399-2 and in Clause 8 of this document. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applic

44、ation. 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 preloading Part 1: General requirements EN 14399-2:2015, High-strength st

45、ructural bolting assemblies for preloading Part 2: Suitability for preloading EN 14399-3, High-strength structural bolting assemblies for preloading Part 3: System HR Hexagon bolt and nut assemblies EN 14399-5, High-strength structural bolting assemblies for preloading Part 5: Plain washers EN 14399

46、-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 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Par

47、t 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread (ISO 898-1) 1) fubis the nominal tensile strength (Rm) and Asis the nominal stress area of the bolt. BS EN 14399-10:2018EN 14399-10:2018 (E) 8 EN ISO 898-2, Mechanical properties of fasteners made of car

48、bon 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 6

49、157-2, Fasteners Surface discontinuities Part 2: Nuts (ISO 6157-2) EN ISO 10684, Fasteners Hot dip galvanized coatings (ISO 10684) ISO 261, ISO general purpose metric screw threads General plan 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 ISO 965-5, ISO general purpose metric screw threads Tolerances Part 5: Limits of sizes