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Abstract:	Flachdecken mit integrierten Stahlprofilen in Verbundbauweise zeichnen sich vor allem durch die schlanke Bauweise mit geringen Deckenhöhen aus. In den letzten Jahren haben sich neben den typischen Querschnitten aus gewalzten Profilen mit untergeschweißter Gurtplatte immer mehr hohlkastenähnliche Profilformen durchgesetzt. Bei diesen Systemen kann zur Steigerung der Querkrafttragfähigkeit ein hybrides Fachwerkmodell abgeleitet werden, bei dem neben der Querkrafttragfähigkeit des Stahlprofils auch die Tragfähigkeit des Betons angerechnet wird. Aufgrund der daraus resultierenden zusätzlichen Spannungen im Stahlprofil muss die Momenten-Querkraft-Interaktionsbeziehung erweitert werden. Shear resistance and M-V-Interaction of Slim-Floor-systems with integrated steel-box sections - Approach of a hybrid truss model for the shear design. Shallow-floor slabs with integrated steel profiles in composite behavior are mainly characterized by the slim design. Parallel to the traditional sections consisting of rolled profiles with an additional bottom plate also floor-slabs with integrated steel-box sections have gained widespread adoption in practice in the recent years. Because of the sheathing of the concrete by the steel section a hybrid truss model with a compression strut in the concrete section is developed, increasing the shear resistance of these sections. Due to the additional steel stresses resulting by the truss model, the relationship for the interaction between moment and vertical shear forces is to expand.
Source:	Stahlbau 84 (2015), No. 5
Page/s:	314-323
Language of Publication:	German

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