Author(s): | Iliopoulos, Aristidis |
Title: | |
Abstract: | Die Verformungsberechnung einbetonierter Stahlträger (Slim Floor) stellt wegen der Rissbildung des Betons, der Nachgiebigkeit der Verdübelung und des rheologischen Verhaltens des Betons ein umstrittenes Problem dar. DIN EN 1994-1-1 enthält keinerlei Regelungen zur Gebrauchstauglichkeitsbemessung von Slim-Floor-Trägern. Im vorliegenden Beitrag wird ein praxisfreundliches Verfahren vorgeschlagen, welches für die Verformungsberechnung einbetonierter Stahlquerschnitte, durch die Rissbildungsfaktoren von DIN EN 1992-1-1 (&zgr;-Methode), geeignet ist. Empfehlungen zur Berücksichtigung der Nachgiebigkeit der Verdübelung und des Kriechens und Schwindens des Betons werden auch gegeben. Calculation of deflections of slim floor beams Serviceability calculations of slim floor systems is a controversial issue due to the uncertainties associated with concrete cracking, the stiffness of the shear connection and the mechanical interaction between concrete, structural and reinforcing steel. EN 1994-1-1 does not include any provisions on the design of slim floor beams. In this paper a method, compatible to the &zgr;-method of EN 1992-1-1, for the determination of deflections in slim floor beams is proposed. Recommendations for considering the flexibility of the shear connection and the influence of creep and shrinkage are also given. |
Source: | Stahlbau 88 (2019), No. 8 |
Page/s: | 796-807 |
Language of Publication: | German |
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