BS EN 14399-9:2009 - High strength structural bolting for preloading. System HR or HV. Direct tension indicators for bolt and nut assemblies – BSI British Standards

BS EN 14399-9:2009

High strength structural bolting for preloading. System HR or HV. Direct tension indicators for bolt and nut assemblies

Status : Superseded, Withdrawn   Published : July 2009 Replaced By : BS EN 14399-9:2018

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BS EN 14399-9:2009 High strength structural bolting for preloading. System HR or HV. Direct tension indicators for bolt and nut assemblies

BS EN 14399-9 specifies, together with BS EN 14399-1, the requirements for assemblies of high-strength structural bolts and nuts, with large width across flats, of system HR or HV, including the requirements for the general dimensions, tolerances, materials and performance for two grades, H8 and H10, of compressible washer-type direct tension indicators, nut face washers and bolt face washers suitable for preloaded joints.

The assemblies covered include the nominal thread sizes M12 up to and including M36 and property classes 8.8/8, 8.8/10 and 10.9/10.

Bolt and nut assemblies to this document have been designed to allow preloading of at least 0,7 fub × As1) according to BS EN 1993-1-8:2005 (Eurocode 3) and to obtain ductility predominantly by plastic elongation of the bolt for system HR according to EN 14399-3 or by plastic deformation of the engaged threads for system HV according to EN 14399-4; also countersunk and fit bolts according to BS EN 14399-7 and -8 respectively.

Bolt and nut assemblies conforming to this document may include washer(s) according to BS EN 14399-6 or to BS EN 14399-5 (under the nut only).

The purpose of the direct tension indicators is to show that a defined preload is achieved in the bolt. The direct tension indicator can be used alone or with bolt face washers or nut face washers conforming to BS EN 14399-9. In either case it is essential that the direct tension indicators are used as part of an assembly in accordance with BS EN 14399-1. To comply with BS EN 14399-1, it is essential that the assemblies are supplied by one manufacturer and include bolts, nuts, washers and direct tension indicators.

The test method for suitability for preloading is specified in BS EN 14399-2 and supplemented by Clause 5. Guidance on the use of compressible washer-type direct tension indicators is given in BS EN 1090-2. Compressible washer-type direct tension indicators are also known as load indicating washers.

Contents of BS EN 14399-9:

  • Foreword
  • Introduction
  • Scope
  • Normative references
  • Direct tension indicators
  • Dimensions
  • Specifications and reference standards
  • Performance test of direct tension indicators
  • Test method for measuring compression loads (all finishes) on direct tension indicators
  • General
  • Testing apparatus
  • Compression loading system
  • Support blocks
  • Bearing blocks
  • Calibration
  • Test Procedure
  • Marking of the direct tension indicator
  • Designation of the direct tension indicator
  • Nut face washers and bolt face washers
  • Dimensions
  • Specifications and reference standards for nut face washers and bolt face washers
  • Marking
  • Nut face washers
  • Bolt face washers
  • Designation
  • Nut face washers
  • Bolt face washers
  • Functional characteristics
  • Assemblies
  • Functional characteristics of direct tension indicators in the assembly
  • Functional characteristics of the bolt/nut/washer(s)/direct tension indicator assembly
  • General
  • Test procedure
  • Special testing conditions and procedures
  • Bibliography



Standard NumberBS EN 14399-9:2009
TitleHigh strength structural bolting for preloading. System HR or HV. Direct tension indicators for bolt and nut assemblies
StatusSuperseded, Withdrawn
Publication Date31 July 2009
Withdrawn Date22 May 2018
Normative References(Required to achieve compliance to this standard)EN 14399-3, EN 14399-6, ISO 7500-1:2004, ISO 6508-1:2005, EN ISO 3269:2000, EN ISO 7500-1, EN 14399-4, ISO 6507-1:2005, EN 14399-7, ISO 4759-3:2000, EN ISO 4759-3, EN 14399-5, EN ISO 6508-1, EN 14399-8, EN 13811, EN ISO 6507-1, EN 14399-2:2005, EN 14399-1:2005, ISO 3269:2000
Informative References(Provided for Information)EN 1993-1-1:2005, EN 1993-1-8:2005, EN 1090-2, ISO 2859-1, EN 10204
Replaced ByBS EN 14399-9:2018
ReplacesBS 7644-1:1993, BS 7644-2:1993
International RelationshipsEN 14399-9:2009
Draft Superseded By07/30107797 DC
DescriptorsPerformance, Tensile loading, Structures, Bolting, Compression loading, Load measurement, Grades (quality), Designations, Load-indicating bolts, Steels, Dimensions, High-tensile steels, Washers, Bolts, Fasteners, Marking
ICS21.060.01
Title in FrenchBoulonnerie de construction métallique à haute résistance apte à la précontrainte. Système HR ou HV. Rondelles indicatrices de précontrainte pour les boulons
Title in GermanHochfeste planmäßig vorspannbare Schraubenverbindungen für den Metallbau. System HR oder HV. Direkte Kraftanzeiger für Garnituren aus Schrauben und Muttern
CommitteeFME/9
ISBN978 0 580 54251 0
PublisherBSI
FormatA4
DeliveryYes
Pages26
File Size684 KB
Price£182.00


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