EN 14399-9-2018 en High-strength structural bolting assemblies for preloading - Part 9 System HR or HV - Direct tension indicators for bolt and nut assemblies.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 9: System HR or HV - Direct tension indicators for bolt and nut assembliesBS EN 14399-9:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-9 May

2、 2018 ICS 21.060.01 Supersedes EN 14399-9:2009English Version High-strength structural bolting assemblies for preloading - Part 9: System HR or HV - Direct tension indicators for bolt and nut assemblies Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 9 : Systme HR

3、 ou HV - Boulons avec rondelles indicatrices de prcontrainte Hochfeste vorspannbare Garnituren fr Schraubverbindungen im Metallbau - Teil 9: System HR oder HV - Direkte Kraftanzeiger fr Garnituren aus Schrauben und Muttern This European Standard was approved by CEN on 22 October 2017. CEN members ar

4、e bound to comply with 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

5、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 other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Ce

6、ntre has the same status 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, Lithua

7、nia, Luxembourg, Malta, 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 Sci

8、ence 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14399-9:2018 ENational forewordThis British Standard is the UK implementation of EN 14399-9:2018. It supersedes BS EN 14399-9:2009, which is withdrawn.Th

9、e UK participation 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 cont

10、ract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 92176 6ICS 21.060.01Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the aut

11、hority of the Standards Policy and Strategy Committee on 31 May 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 14399-9:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14399-9 May 2018 ICS 21.060.01 Supersedes EN 14399-9:2009English Version High-st

12、rength structural bolting assemblies for preloading - Part 9: System HR or HV - Direct tension indicators for bolt and nut assemblies Boulonnerie de construction mtallique haute rsistance apte la prcontrainte - Partie 9 : Systme HR ou HV - Boulons avec rondelles indicatrices de prcontrainte Hochfest

13、e vorspannbare Garnituren fr Schraubverbindungen im Metallbau - Teil 9: System HR oder HV - Direkte Kraftanzeiger fr Garnituren aus Schrauben und Muttern This European Standard was approved by CEN on 22 October 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which sti

14、pulate 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 Management Centre or to any CEN member. This European

15、 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 status as the official versions. CEN members are th

16、e 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, Netherlands, Norway, Poland, Portugal, Romani

17、a, 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 Brussels 2018 CEN All rights of exploitation in any f

18、orm and by any means reserved worldwide for CEN national Members. Ref. No. EN 14399-9:2018 EBS EN 14399-9:2018EN 14399-9:2018 (E) 2 Contents Page European foreword . 3 Introduction 5 1 Scope 7 2 Normative references 7 3 Direct tension indicators 8 3.1 General 8 3.2 Dimensions 8 3.3 Specifications an

19、d reference standards for direct tension indicators 10 3.4 Functional test of direct tension indicators . 11 3.5 Test method for measuring compression loads (all finishes) on direct tension indicators 12 3.5.1 General . 12 3.5.2 Testing apparatus 12 3.5.3 Support blocks 13 3.5.4 Bearing blocks . 14

20、3.5.5 Calibration 14 3.5.6 Test procedure 14 3.6 Marking of the direct tension indicator . 17 3.7 Designation of the direct tension indicator 17 4 Nut face washers (HN) and bolt face washers (HB) . 17 4.1 Dimensions . 17 4.2 Specifications and reference standards for nut face washers (HN) and bolt f

21、ace washers (HB) . 19 4.3 Marking 20 4.3.1 Nut face washers (HN) 20 4.3.2 Bolt face washers (HB) . 20 4.4 Designation of nut face washers (HN) and bolt face washers (HB) 21 5 Functional characteristics 21 5.1 Bolting assemblies . 21 5.2 Functional characteristics of direct tension indicators in the

22、assembly . 22 5.3 Functional characteristics of bolting assemblies with direct tension indicator . 23 5.3.1 General . 23 5.3.2 Suitability test procedures . 23 Annex A (informative) Use of structural bolting assemblies for preloading with direct tension indicators 25 A.1 General . 25 A.2 Bolting ass

23、embly configurations 25 A.3 Checking 26 Bibliography . 29 BS EN 14399-9:2018EN 14399-9:2018 (E) 3 European foreword This document (EN 14399-9:2018) 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 stat

24、us of a national standard, either by publication of 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 su

25、bject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14399-9:2009. In comparison with EN 14399-9:2009, the following modifications have been made: Table 1 containing the overview of the composition of bolt

26、ing assemblies and component marking has been revised; the test method for measuring compression loads on direct tension indicators has been revised; the suitability test for bolting assemblies including direct tension indicators has been revised; Informative Annex A has been deleted; Informative An

27、nex on the use of direct tension indicators has 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: Suitability for preloading Part 3: System HR Hexagon bolt and nut assemblies

28、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 Part 9: System HR or HV Direct tension indicators for bolt and nut assemblies Part

29、10: System HRC Bolt and nut assemblies with calibrated preload BS EN 14399-9:2018EN 14399-9:2018 (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

30、, 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, Spain, Sweden, Switzerland, Turkey

31、and the United Kingdom. BS EN 14399-9:2018EN 14399-9:2018 (E) 5 Introduction This document is part of the EN 14399 series which specify high-strength structural bolting for preloading; this part belongs to both types, HR and HV. Direct tension indicators (known formerly as load indicating washers) u

32、sed in conjunction with nut face washers (HN) and bolt face washers (HB) are load indicating devices which are placed under the bolt head or under the nut. The direct tension indicators have protrusions on one face which compress under load and thus may be used to indicate that at least the required

33、 preload has been achieved in the bolting assembly. Direct tension indicators are only to be sold as components of structural bolting assemblies comprised of bolts, nuts and associated washers that otherwise complies with EN 14399-3, EN 143994, EN 143997 or EN 143998. The composition of bolt/nut/was

34、her/direct tension indicator assemblies is shown in Table 1. 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 bo

35、lting assemblies as supplied. For the same reason it is important that the 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 w

36、hen the gap remaining after tightening (compressed protrusions) is less than the specified values in this standard, if the assembly is tightened with a suitable procedure. For this purpose the test method given in this standard was developed, which demonstrates whether the functionality of the bolti

37、ng assemblies is fulfilled. BS EN 14399-9:2018EN14399-9:2018 (E)6Table1Compositionofhigh-strength structuralboltingassembliesand componentmarkingType ofboltingassemblySystemHRSystemHVSystemHRCGeneralrequirementsEN14399-1Suitability forpreloadingEN14399-2and,ifany,additionaltestingspecified intheprod

38、uctstandardBoltandnutEN14399-3EN14399-7EN14399-4EN14399-8EN14399-10Marking BoltHR8.8HR10.9HR8.8HR10.9HV10.9HVP10.9HRC10.9NutHR8orHR10HR10HR8orHR10HR10HV10HV10HR10HRD10Washer(s)EN14399-5aorEN14399-6EN14399-6EN14399-5aor EN14399-6MarkingH orHRbHorHVbH orHRbH orHRbor HDcDirecttensionindicatorandnutface

39、 washerorboltfacewasher,if anyEN14399-9NotapplicableMarking Direct tensionindicatorH8H10H8H10H10NutfacewasherHNHNbolt facewasherHBNotapplicableHBaEN143995canonlybeusedunderthenut.bAt thechoiceofthemanufacturer.cMandatorymarkforwasherswith enlargedouterdiameteraccordingtoEN143995only.BS EN 14399-9:20

40、18EN 14399-9:2018 (E) 7 1 Scope This document specifies, together with EN 14399-1 and EN 14399-2, the requirements for direct tension indicators, nut face washers (HN) and bolt face washers (HB) as part of high-strength structural bolting assemblies suitable for preloaded joints. These direct tensio

41、n indicators are specified as part of high-strength structural bolting assemblies of system HR or HV in accordance with EN 14399-3, EN 14399-4, EN 14399-7 or EN 14399-8, with nominal thread sizes M12 up to and including M36 and property classes 8.8/8 or 8.8/10 and 10.9/10. It specifies two property

42、designations H8 and H10 for direct tension indicators, together with general dimensions, tolerances, materials and functional property/ies. 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

43、obtain ductility predominantly by plastic elongation of the bolt for system HR in accordance with EN 14399-3 or EN 14399-7, or by plastic deformation of the engaged threads for system HV in accordance with EN 14399-4 or EN 14399-8. Bolting assemblies conforming to this document may include washer(s)

44、 according to EN 14399-6 or to EN 14399-5 (under the nut only). NOTE 1 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 to EN 10902 is made. General

45、 requirements and requirements for suitability for preloading are specified in EN 14399-2 together with Clause 5 of this document. NOTE 2 Direct tension indicators are also known as load indicating washers. 2 Normative references The following documents, in whole or in part, are normatively referenc

46、ed 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 ISO 17668, Zinc diffusion coatings on ferrous products Sherardizing Specif

47、ication (ISO 17668) 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 14399-3, High-strength structural bolting assemblies for preloading Par

48、t 3: System HR Hexagon bolt and nut assemblies EN 14399-4, High-strength structural bolting assemblies for preloading Part 4: System HV Hexagon bolt and nut assemblies EN 14399-5, High-strength structural bolting assemblies for preloading Part 5: Plain washers EN 14399-6, High-strength structural bo

49、lting assemblies for preloading Part 6: Plain chamfered washers 1) fubis the nominal tensile strength (Rm) and Asis the nominal stress area of the bolt. BS EN 14399-9:2018EN 14399-9:2018 (E) 8 EN 14399-7, High-strength structural bolting assemblies for preloading Part 7: System HR - Countersunk head bolt and nut assemblies EN 14399-8, High-strength structural bolting assemblies for preloading Part 8: System HV - Hexagon fit bolt and nut assemblies EN ISO 3269:2000, Fasteners A