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Author(s):	Winkler, Rebekka; Knobloch, Markus
Title:
Abstract:	Herrn Univ.-Prof. Dr.-Ing. habil. Joachim Lindner zur Vollendung seines 80. Lebensjahres gewidmet Die Veröffentlichung analysiert und vergleicht Ansätze für geometrische Ersatzimperfektionen für den Stabilitätsfall Biegeknicken um die schwache Achse für gewalzte doppeltsymmetrische I-/H-Querschnitte. Neben den in Deutschland und Europa normativ eingeführten Regeln werden auch Ansätze für Ersatzimperfektionen berücksichtigt, die im Zuge der Weiterentwicklung des Eurocodes 3 diskutiert werden. Ein Vorschlag unter Anwendung des Teilschnittgrößenverfahrens ermöglicht eine konsistente Bemessung für Bauteile unter Berücksichtigung des Querschnittsversagens sowie des Biegeknickens um die starke und schwache Querschnittsachse. Der Vorschlag führt zu Bemessungsergebnissen, welche gut mit den Resultaten numerischer Simulationen übereinstimmen. Equivalent initial imperfections for applying the partial internal forces method for flexural buckling about the weak axis. This paper compares design approaches for equivalent initial imperfections of steel members with hot-rolled double symmetric I-/H-profiles subjected to buckling about the weak axis. In addition to the normative rules applied in Germany and Europe, design approaches for imperfections are also taken into account, which are currently discussed as part of the further development of Eurocode 3. A proposal using the partial internal forces method allows a consistent design for steel members taking into account the cross-sectional failure as well as the flexural buckling about the strong and weak axis. The proposal leads to design results that agree well with the results of numerical simulations.
Source:	Stahlbau 87 (2018), No. 4
Page/s:	308-322
Language of Publication:	German

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