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Title:	Stabilisierung von Bauteilen durch Sandwichelemente
Abstract:	Aufgrund ihrer großen Schubsteifigkeit in Plattenebene können Sandwichelemente ihre Unterkonstruktion, z. B. Pfetten und Wandriegel, gegen seitliches Ausweichen stabilisieren. Bisher fehlen jedoch praxistaugliche Grundlagen zur Ermittlung der Schubsteifigkeit der Sandwichelemente, die es ermöglichen, den Stabilisierungseffekt rechnerisch z. B. bei der Bemessung von Pfetten zu berücksichtigen, wie es bei Trapez- und Kassettenprofilen üblich ist. Im Aufsatz wird ein Berechnungsverfahren vorgestellt, mit dem die zur Stabilisierung der Unterkonstruktion zur Verfügung stehende Schubsteifigkeit der Sandwichelemente ermittelt werden kann. Aus der Stabilisierung resultieren planmäßige zusätzliche Kräfte in den Verbindungen zwischen Sandwichelement und Unterkonstruktion. Die Ermittlung dieser Beanspruchungen wird erläutert, um eine entsprechende Bemessung der Verbindungen durchführen zu können. Stabilization of the substructure by sandwich panels. Because of their high in-plane shear stiffness sandwich panels can stabilize their substructure, e. g. purlins and bay rails. But until now, there is a lack of clear design rules, which allow to determine the shear stiffness and to consider the stabilizing effect in the design of the substructure, as it is common practice for trapezoidal and cassette profiles. The present paper introduces a calculation procedure to determine the shear stiffness available for stabilization. Stabilization of the substructure causes additional forces in the fastenings between sandwich panel and substructure. The determination of these forces is also explained so that the fastenings can be designed properly.
Source:	Stahlbau 81 (2012), No. 12
Page/s:	951-958
Language of Publication:	German

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