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Abstract:	Die Formate des Eurocode 3 für den spannungsbasierten Beulsicherheitsnachweis sind für ebene Flächentragwerke (Plattenbeulen nach EN 1993-1-5) und für gekrümmte Flächentragwerke (Schalenbeulen nach EN 1993-1-6) konzeptionell unterschiedlich - im Gegensatz zur bisherigen Regelung in DIN 18800 (Teile 3 und 4). Auch ein kürzlich veröffentlichter Verbesserungsvorschlag für den Interaktionsnachweis beim Plattenbeulen, der ein formal identisches Aussehen der beiden EC 3-Beulinteraktionsgleichungen zur Folge hat, ändert daran nichts. Im vorliegenden Beitrag werden Gemeinsamkeiten und Unterschiede der Formate für den spannungsbasierten Beulsicherheitsnachweis aufgezeigt. Für das Plattenbeulen werden, ergänzend zu dem erwähnten veröffentlichten Verbesserungsvorschlag, einige kleine weitere Verbesserungsvorschläge gemacht. Buckling stress design check for plane and curved steel surface structures under combined membrane stressing - a comparative analysis of the Eurocode formats. The formats of Eurocode 3 for the buckling stress design check are conceptually different for plane surface structures (plate buckling according to EN 1993-1-5) and for curved surface structures (shell buckling according to EN 1993-1-6) - contrary to the previous rules in DIN 18800 (Parts 3 and 4). Even a recently published proposal for improvement of the plate buckling interaction check, which results in a formally identical appearance of the two EC 3 buckling interaction expressions, does not modify that situation. In the present paper, the commonalities and the differences of the buckling stress design formats are pointed out. For the plate buckling interaction check, some minor further proposals for improvement, complementarily to the mentioned published one, are presented.
Source:	Stahlbau 80 (2011), No. 11
Page/s:	804-813
Language of Publication:	German

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