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Author(s):	Ungermann, D.; Kalameya, J.; Brune, B.
Title:
Abstract:	Die Regelungen und Nachweiskonzepte in den Stahlbaunormen DIN 18800 und Eurocode 3 zur Stab- und Gesamtstabilität von Bauteilen unter Normalspannungen sind weitestgehend durch Untersuchungen an I- und Kastenprofilen hergeleitet und verifiziert worden. Eine Übertragung und Überprüfung für davon abweichende Profilformen, im Speziellen für die hier behandelten C-Profile, existiert nicht. Es wird ein geschlossenes, durchgängiges Bemessungskonzept vorgestellt, das es erlaubt, das Tragverhalten von Bauteilen mit C-förmigem Querschnitt ohne längsaussteifende Querschnittselemente unter Druck- und/oder Biegebeanspruchung wirklichkeitsnah zu beschreiben und rechnerisch zu erfassen. Dabei wird den möglichen Stabilitätsproblemen - das heißt lokalem Plattenbeulen, globaler Stabstabilität und dem Zusammenspiel beider einzelnen Stabilitätsprobleme - besondere Aufmerksamkeit geschenkt. Ultimate loads of steel channel sections in compression and bending. Especially for members susceptible to global buckling or coupled instabilities the design rules in the relevant codes DIN 18800 and Eurocode 3 have been developed for and verified by research on I-shaped or hollow sections. For deviant shapes, particularly the regarded channel sections, a transfer or verification of these design concepts does not exist. A comprehensive design method is presented, allowing to describe the load-carrying behavior of channel-shaped members without longitudinal stiffeners in compression and/or bending realistically. Special attention has been paid to the regards of stability problems, i.e. local and global buckling as well as a combination of both, the so-called coupled instability.
Source:	Stahlbau 78 (2009), No. 11
Page/s:	822-831
Language of Publication:	German

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