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Author(s):	Herzog, Max
Title:
Abstract:	Nach einem kurzen geschichtlichen Rückblick wird die Stabilitätslehre für Stützen, Rahmen und Bögen aus Baustahl erläutert und auf die Nachrechnung von sechs großen Versuchskörpern angewendet. Der Vergleich mit den gemessenen Tragfähigkeiten zeigt, dass die Größe der in der Berechnung angenommenen Verformung beim Versagen des betrachteten Stabtragwerks von ausschlaggebender Bedeutung für das Rechenergebnis ist. Ein Umstand, der sowohl in der alten DIN 4114 (1952) als auch in der neueren DIN 18800 (1990) und im neuen EC 3 (DIN EN 1993-1-3 vom Dezember 2010) ungenügend berücksichtigt wurde. Wegen der zu kleinen rechnerischen Bruchverformungen fallen die Tragsicherheiten nach den vorgenannten Normen im Allgemeinen zu groß aus. The ultimate capacity of slender columns, frames and arches. After a short historical review the theory of stability for columns, frames and arches of structural steel is explained and applied to the posterior analysis of six large test structures. The comparison with the measured ultimate capacities shows that the assumed size of the structural deformation at collapse is of decisive importance which was insufficiently considered in the old German standard DIN 4114 (1952) as well as in the newer one DIN 18800 (1990) and in the new Eurocode EC 3 (DIN 1993-1-3 of December 2010). As the introduced collapse deformations are too small the safety predictions according to the above mentioned standards are generally big.
Source:	Stahlbau 81 (2012), No. 7
Page/s:	549-565
Language of Publication:	German

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