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Author(s):	Hartwig, Steffen; Middendorf, Julia
Title:
Abstract:	Die intensive Nutzung der Verbindungstechnik der Trockenfugen im Bereich der Türme von Windenergieanlagen und des Fertigteilbrückenbaus macht es notwendig, die Berechnungsmodelle dieser Verbindungen zu verbessern. Dieser Artikel beschreibt die Entwicklung eines Interaktionsmodells zur Bestimmung der Torsionstragfähigkeit unter Querkraft- und Biegebeanspruchungen an Kreisringsegmenten. Das Modell berücksichtigt nicht nur die Interaktion mit allen Beanspruchungszuständen, sondern auch die Wechselwirkung in den klaffenden Fugen durch die Biegebeanspruchung. Bisherige Modelle beschreiben die Tragfähigkeit der Kreisringsegmentfugen ungenügend oder lediglich ohne die Interaktion mit der Querkraft oder dem Biegemoment. Abschließend erfolgt ein Vergleich der Ergebnisse der entwickelten Modellberechnungen mit numerischen Simulationen, der eine gute Übereinstimmung zeigte. Advanced torsional bearing model of external prestressed circular ring segments with dry joints The frequent application of dry joints as connection technology in the field of wind turbine towers and prefabricated bridge construction demands improvement of the calculation model of these connections. This article describes the development of an interaction model for the determination of torsional load-bearing capacity under shear forces and bending loads applied on circular ring segments. The model considers both the interaction with all loading conditions and the alternating effect of gaping joints due to the bending load. Previous models describe the load-bearing capacity of circular ring segment joints insufficiently or without considering interactions with shear forces or the bending moment. Finally, the results of the developed model are compared to numerical calculations showing satisfactory agreement.
Source:	Beton- und Stahlbetonbau 116 (2021), No. 8
Page/s:	632-640
Language of Publication:	German

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