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Author(s):	Schmid, Volker; Tandler, Jens
Title:
Abstract:	Brücken- und Hochbauten werden aus technischen und wirtschaftlichen Gründen immer häufiger als Mischkonstruktionen aus Stahl und Konstruktionsbeton geplant und realisiert. Häufig müssen in diesen Konstruktionen hohe, konzentrierte Kräften aus Stahlbauteilen in schlanke Betonbauteile eingeleitet werden. Diese Verbindungsproblematik gewinnt durch die zunehmende Verwendung immer festerer Stähle und Betone und der damit einhergehenden Reduktion der Bauteilabmessungen zunehmend an Bedeutung. Als materialgerechte Lösung für die konzentrierte Tangentialkrafteinleitung bieten sich Verbindungen mit Zahnleisten an, die zudem einen hohen Ermüdungswiderstand erwarten lassen. Der Artikel beschreibt die Anwendungsmöglichkeiten von Zahnleisten, erläutert die grundlegenden Tragprinzipien und beschreibt die an der TU Berlin durchgeführten Versuche zur Leistungsfähigkeit der Zahngeometrie. Concentrated shear transfer between steel and concrete - Testing of the saw tooth connector. Due to technical and economical considerations, bridges and buildings are increasingly designed and constructed as hybrid structures made of structural steel and concrete. Frequently, concentrated loads from steel elements have to be transferred into slender concrete elements. The connection aspect becomes even more important as structural steel and concrete of increasingly higher strength with the resulting smaller structural dimensions are used. A connection that is suitable for concentrated shear transfer for these structures is the saw tooth connector. It is expected that this type of connection will have a high fatigue strength as well. The article describes where this connection can be used, explains the underlying structural principles and the structural tests undertaken at the TU Berlin to assess the saw tooth geometry.
Source:	Stahlbau 80 (2011), No. 7
Page/s:	540-547
Language of Publication:	German

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