Abstract. Especially for the main frames of single-storey steel buildings the use of corrugated web beams, mainly with sinusoidal corrugation, has been increased very much during the last years. Due to the thin web of 1,5 mm to 3 mm corrugated web beams afford a significant weight reduction compared with hot rolled profiles or welded I-sections. Buckling failure of the web is prevented by the corrugation. The buckling resistance of presently used sinusoidal corrugated webs is comparable with plane webs of 12 mm thickness or more. Due to improvements of the automatic fabrication process corrugated webs up to 6 mm thickness became possible. Therefore the field of application of this beam type has been extended considerable. Even short span bridges are possible now. The dimensioning of corrugated web beams is ruled by the EN 1993-1-5 Annex D -it covers only web thicknesses up to 3 mm. In the last years many tests and finite element simulations have been carried out. Regarding this background, these EN rules will be discussed and extended. Furthermore, additional proposals for patch loading and lateral-torsional buckling of girders with sinussoidal webs will be given.
During welding of typical steel cross sections, like T or I- Profiles e.g., residual stress occurs and need to be considered during the design process. With knowledge of the stress state after welding, farther calculation with different models are carried out. The systematic study will show three steps of the Okerblom's model to consider in the evaluation process of the welding stresses. The results of the numerical simulation and experimental models are show and compared. With that, the difference between the buckling curve from EN 1993-1-1 (2006) and the study are shown for steel S235 and S460. Especially for the high strength steels, the nowadays design conditions are very conservative and further investigation is needed and recommended.
1 Beschreibung des Bauwerks 1.1 Einführung Über die Planung und Herstellung der Hochmoselbrücke wurde bereits ausreichend in [1] berichtet. Dieser Beitrag versteht sich als zusammenfassende Darstellung der Planung und Ausführung, in die nun auch weiterführende Erkenntnisse gegenüber [1] einfließen können, da das Bauwerk kurz vor seiner Fertigstellung steht. Das Bauwerk überspannt im Zuge des Neubaus der B 50n bei Ürzig/Zeltingen das Moseltal in einer Höhe von etwa 160 m und hat bei einer Breite von 29,00 m eine Gesamtlänge von 1702,35 m. Es handelt sich um eine der größten Stahlbrückenneubauten der jüngeren Geschichte Deutschlands und ist Teil der Verbindung der belgischen/ niederländischen Nordseehäfen mit dem Rhein-Main-Gebiet. Die Hochmoselbrücke ist in ihrer Gestaltung und Konzeption an die im Jahr 1987 fertiggestellte Sauertalbrücke [2] angelehnt, wobei die geometrischen Abmessungen der Sauertalbrücke in etwa bei 70 % der Hochmoselbrücke liegen. UnterbautenDie Widerlager wurden als kastenförmige, zurückgesetzte Widerlager mit drei Geschossen und Wartungsgängen ausgebildet. Die Brückenpfeiler bestehen aus einzelligen Hohlquerschnitten aus Stahlbeton und variieren je nach Standort von 20,78 m in der Achse 1 bis 150,72 m in der Achse 4. Sämtliche Pfeiler und das westliche Widerlager sind auf Großbohrpfählen bis zu Durchmessern von 2,00 m gegründet; das östliche Widerlager ist flach gegründet.
This study includes a detailed analysis of using adhesives in reinforcement of steel structures. Two types of structures were experimentally investigated: box girder and knee joints. The numerical calculations were done on the basis of the experimental investigations performed at CUT Cracow (box girder) and BTU Cottbus (knee joints) with the use of numerical programme Abaqus based on the Finite Element Method. The numerical results were compared with the experimental ones.
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