High-strength structural bolting assemblies for Licensed ...

1 BRITISH STANDARDBS EN 14399 -2:2005 High-strength structural bolting assemblies for preloading Part 2: Suitability test for preloadingThe European Standard EN 14399 -2:2005 has the status of a British StandardICS Licensed Copy: na na, University of Central Lancashire JISC, Wed Feb 08 08:14:11 GMT 2006, Uncontrolled Copy, (c) BSIBS EN 14399 -2:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 October 2005 BSI 7 October 2005 ISBN 0 580 46544 6 National forewordThis British Standard is the official English language version of EN 14399 -2:2005. Together with BS EN 14399 -1:2005, BS EN 14399 -3:2005, BS EN 14399 -4:2005, BS EN 14399 -5:2005 and BS EN 14399 -6:2005, it supersedes BS 4395-1:1969 and BS 4395-2:1969, which are planned to be declared obsolescent in September 20071, and then, together with BS 449 and BS 5950, will be withdrawn upon publication of Eurocode 3.

2 (BS 4395-1:1969 and BS 4395-2:1969 currently support BS 449 and BS 5950.)The UK participation in the preparation of EN 14399 -2 was entrusted by Technical Committee FME/9, Nuts, bolts and accessories/Steering Committee, to its Subcommittee, FME/9/1, Materials, which has the responsibility to:A list of organizations represented on this subcommittee can be obtained on request to its informationThis part of BS EN 14399 is one of several parts that comprise the BS EN 14399 series of standards. BS EN 14399 -1 provides the general requirements to which the other parts, which provide specific requirements regarding manufacture, materials and testing, British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled International Standards Correspondence Index , or by using the Search facility of the BSI Electronic Catalogue or of British Standards publication does not purport to include all the necessary provisions of a contract.

3 Users are responsible for its correct with a British Standard does not of itself confer immunity from legal CEN/TC 185/WG 6 has applied for a two-year extended co-existence period, to September 2007 , and for a corrigendum to amend the second September 2005 date in the Foreword to EN 14399 -2:2005 to September 2007 . aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 13 and a back BSI copyright notice displayed in this document indicates when the document was last issued since publicationAmd.

4 No. DateCommentsLicensed Copy: na na, University of Central Lancashire JISC, Wed Feb 08 08:14:11 GMT 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROP ENNEEUROP ISCHE NORMEN 14399 -2 March 2005 ICS versionHigh-strength structural bolting assemblies for preloading - Part2: Suitability test for preloadingBoulonnerie de construction m tallique haute r sistanceapte la pr contrainte - Partie 2 : Essai d'aptitude l'emploi pour la mise en pr contrainteHochfeste planm ig vorspannbareSchraubenverbindungen f r den Metallbau - Teil 2: Pr fungder Eignung zum VorspannenThis European Standard was approved by CEN on 30 April members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration.

5 Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United COMMITTEE FOR STANDARDIZATIONCOMIT EUROP EN DE NORMALISATIONEUROP ISCHES KOMITEE F R NORMUNGM anagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national No.

6 EN 14399 -2:2005: ELicensed Copy: na na, University of Central Lancashire JISC, Wed Feb 08 08:14:11 GMT 2006, Uncontrolled Copy, (c) BSIEN 14399 -2:2005 (E) 2 Contents page 1 Scope ..4 2 Normative references ..4 3 Terms and definitions ..4 4 Symbols and units ..4 5 Principle of the 6 Test apparatus ..6 7 Test assemblies ..6 8 Test 9 Test procedure ..7 10 Evaluation of the test 11 Test report ..11 Annex A (informative) Special testing conditions and procedures ..12 Bibliography ..13 Licensed Copy: na na, University of Central Lancashire JISC, Wed Feb 08 08:14:11 GMT 2006, Uncontrolled Copy, (c) BSIEN 14399 -2:2005 (E) 3 Foreword This document (EN 14399 -2:2005) has been prepared by Technical Committee CEN/TC 185, "Threaded and non-threaded mechanical fasteners and accessories", the secretariat of which is held by DIN.

7 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 September 2005, and conflicting national standards shall be withdrawn at the latest by September 2005. Rules for design and execution of bolted connections with preloaded High-strength structural bolts are respectively defined in ENV 1993-1-1 (Eurocode 3) and ENV 1090-1 for general rules and rules for buildings. This test, which determines the functional characteristics identified in the relevant product standards, has been de-veloped to confirm the suitability of a high strength bolt/nut/washer assembly for preloaded bolted connections in civil engineering structures. This document includes a Bibliography.

8 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun-tries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Esto-nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: na na, University of Central Lancashire JISC, Wed Feb 08 08:14:11 GMT 2006, Uncontrolled Copy, (c) BSIEN 14399 -2:2005 (E) 4 1 Scope This document specifies a tightening test to verify the suitability of high strength bolt/nut/washer assemblies for pre-loaded bolted connection in metallic structures. The purpose of this test is to check the behaviour of the fastener assembly so as to ensure that the required pre-load can be reliably obtained by the tightening methods specified in ENV 1090-1 with sufficient margins against over tightening and against failure.

9 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14399 -1:2005, High-strength structural bolting assemblies for preloading Part 1: General requirements. EN 14399 -3, High-strength structural bolting assemblies for preloading Part 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 bolting assemblies for preloading Part 6: Plain chamfered washers.

10 EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1:1999). 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14399 -1:2005 apply. 4 Symbols and units A elongation, (mm) As nominal stress area of the bolt, (mm2) (see EN ISO 898-1) d nominal thread diameter, (mm) Fb bolt force during the test, (kN) Fbi individual value of the bolt force related to a given nut rotation, torque or bolt elongation, (kN) Fbm mean value of Fbi values, (kN) Fbi,max individual value of the maximum bolt force reached during the test, (kN) Fp specified preload of 0,7 fub As, (kN) Licensed Copy: na na, University of Central Lancashire JISC, Wed Feb 08 08:14:11 GMT 2006, Uncontrolled Copy, (c) BSIEN 14399 -2.