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Influence of different testing criteria in the slip factor of slip-resistant connections

: Stranghöner, Natalie; Afzali, Nariman; Berg, Jörn; Schiborr, Markus; Bijlaard, Frans; Gresnigt, Nol; Vries, Peter de; Glienke, Ralf; Ebert, Andreas

Heinisuo, Markku (Ed.) ; Finnish Constructional Steelwork Association -FCSA-, Helsinki; Tampere University of Technology:
13th Nordic Steel Construction Conference 2015. Proceedings : Invited keynotes and extended abstracts; 23-25 September 2015, Tampere, Finland
Tampere, 2015
ISBN: 978-952-15-3578-9
ISBN: 978-952-15-3579-6
Nordic Steel Construction Conference <13, 2015, Tampere>
Fraunhofer IPA ()
Haftreibung; Reibung; Haftung (Werkstoff)

Slip of slip-resistant connections has to be prevented either for serviceability or ultimate limit state reasons. EN 1090-2 specifies slip factors for often used surface conditions. For deviating conditions, slip factors have to be determined experimentally according to Annex G of EN 1090-2. The practice shows, that the slip test procedure according to Annex G is not clear in detail. For instance, the slip load has been defined as the load corresponding to a slip of 0.15 mm. Furthermore, static tests have to be performed using a “normal speed” which is not clearly specified. For these and other reasons, a comprehensive investigation is going on to be carried out to resolve these problems. First results are presented in this contribution.