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Title:	Momenten-Auflager-Interaktion von mehrfeldrig gespannten Sandwichelementen
Abstract:	Herrn Prof. Dr.-Ing. Klaus Berner zum 80. Geburtstag gewidmet Selbsttragende Sandwichelemente mit beidseitigen Metall-Deckschichten werden im Bauwesen i. d. R. als Mehrfeldträger geplant und verbaut. Hierbei tritt an den Zwischenauflagern stets eine Interaktion zwischen dem druckbelasteten Deckblech und der orthogonal dazu wirkenden Auflagerkraft auf, welche die Biegetragfähigkeit reduzieren kann. Viele Einflussfaktoren auf die reduzierte Tragfähigkeit bleiben in der momentanen Zulassungspraxis (und Bemessung) unberücksichtigt. Im Rahmen eines von der DFG geförderten Forschungsprojekts wurden daher experimentelle, numerische sowie analytische Untersuchungen an Sandwichelementen durchgeführt. Es wurden wesentliche Einflüsse auf die reduzierte Knitterspannung unter einer einwirkenden Querdruckbelastung quantifiziert und ein möglicher Lösungsansatz aufgezeigt, um diese künftig - z. B. im Rahmen der Zulassungsversuche - berücksichtigen zu können. Moment support interaction of multi-span sandwich panels Self-supporting double skin metal faced sandwich panels are usually designed and installed as multi-span beams. In this case, there is always an interaction at the intermediate supports between the compressional normal force in the face sheet and the support reaction orthogonally to it, which can reduce the bending capacity. Many effects influencing the reduced load-bearing capacity are not taken into account in current approval practice (and design). Within a research project funded by the DFG, experimental, numerical and analytical investigations were therefore carried out on sandwich panels. The main influences on the reduced wrinkling stress under an applied transverse compressive load were quantified and a possible solution was identified in order to take them into account in the future, e.g. within the scope of the approval tests.
Source:	Stahlbau 90 (2021), No. 11
Page/s:	798-806
Language of Publication:	German

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