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Author(s):	Kettler, Markus; Unterweger, Harald
Title:
Abstract:	In diesem Aufsatz werden der Versuchsaufbau und die Ergebnisse einer Versuchsreihe an geschraubten Winkelprofilen unter Druckbeanspruchung, bei Variation der Lagerungsbedingungen, präsentiert. Begleitend zu den Laborversuchen wurden Finite-Elemente-Berechnungen durchgeführt, deren Ergebnisse ebenfalls dargestellt werden. Insgesamt wurden 27 Versuchskörper mit Ein- und Zwei-Schraubenanschlüssen getestet. Die Schrauben waren dabei entweder vorgespannt oder nur handfest angezogen. Es wurden folgende drei Lagerungsbedingungen der beidseitigen Anschlussbleche untersucht: (i) eingespannte Lagerung, (ii) Scharnierlagerung, bei der die Rotation um die zum angeschlossenen Winkelschenkel parallele Achse frei möglich ist, und (iii) gelenkige Lagerung. Zusätzlich zu den Ergebnissen der Traglastversuche werden begleitende Imperfektionsmessungen und Materialtests gezeigt. Abschließend werden die Ergebnisse der Versuche mit den numerischen Berechnungen und mit den Empfehlungen einschlägiger Normen verglichen. Laboratory tests on bolted steel angles in compression with varying end support conditions The paper presents the detailed test setup and results of a test series on bolted single steel angles in compression with varying end support conditions and slenderness ratios. For all tests FEM-calculations were done, which are also presented. In total 27 specimens with one-bolt and two-bolt connections with and without preload are tested. Three different boundary conditions on both ends are investigated: (i) a clamped support, (ii) a knife edge support that allows only for rotations about the axis parallel to the connected leg and (iii) a fully hinged support. In addition to the results of the member tests, imperfection measurements and results of material tests are presented in order to carry out the FEM-calculations and to allow for comparison with current design standards.
Source:	Stahlbau 88 (2019), No. 5
Page/s:	447-459
Language of Publication:	German

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