DIN EN 14399-9-2009
預加負荷用高強度結構螺栓組件.第9部分:HR或HV系統.螺栓和螺母總成的直接張力指示器.英文版本DIN EN 14399-9-2009-07

High-strength structural bolting assemblies for preloading - Part 9: System HR or HV - Direct tension indicators for bolt and nut assemblies; English version of DIN EN 14399-9:2009-07

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標準號

DIN EN 14399-9-2009

發布日期

2009年07月

實施日期

廢止日期

無

中國標準分類號

J13

國際標準分類號

21.060.01

發布單位

德國標準化學會

引用標準

EN 13811 EN 14399-1-2005 EN 14399-2-2005 EN 14399-3 EN 14399-4 EN 14399-5 EN 14399-6 EN 14399-7 EN 14399-8 EN ISO 3269-2000 EN ISO 4759-3 EN ISO 6507-1 EN ISO 6508-1 EN ISO 7500-1

代替標準

AASHTO T 313-2010

被代替標準

DIN EN 14399-9-2007

適用范圍

This document specifies, together with EN 14399-1, the requirements for assemblies of high-strength structural bolts and nuts, with large width across fiats, 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 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 0,7f_ub x A_s according to 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 EN 14399-7 and -8 respectively. Bolt and nut assemblies conforming to this document may include washer(s) according to EN 14399-6 or to 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 this standard. In either case it is essential that the direct tension indicators are used as part of an assembly in accordance with EN 14399-1. To comply with EN 14399-1, it is essential that the assemblies are supplied by one manufacturer and include bolts, nuts, washers and direct tension indicators. NOTE 1 Attention is drawn to the importance of ensuring that the assemblies are correctly used if satisfactory results are to be obtained. The test method for suitability for preloading is specified in EN 14399-2 and supplemented by Clause 5 Guidance on the use of compressible washer-type direct tension indicators is given in EN 1090-2 NOTE 2 Compressible washer-type direct tension indicators are also known as load indicating washers

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