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Zur Zeit befindet sich der Lückenschluss der BAB 30 als sogenannte Nordumgehung Bad Oeynhausen im Bau. In diesem Rahmen werden am östlichen und westlichen Ende der Nordumgehung die Bauwerke 29 und 4 erstellt. Hierbei handelt es sich um Schrägseilbrücken in Verbaundbauweise, welche architektonische Landmarken an den Enden der Nordumgehung Bad Oeynhausen setzen. Beide Bauwerke überführen die BAB 30 über den Fluss Werre. Die Stromöffnungen betragen ca. 68 m bzw. ca. 83 m und sind damit für Schrägseilbrücken vergleichsweise gering. Aufgrund der Lage im Krümmungsbereich, der örtlichen Randbedingungen (u. a. große Schiefe wegen des Kreuzungswinkels) sowie des FFH‐Status der Werre ergab sich im Rahmen der Entwurfsplanung eine anspruchsvolle Aufgabenstellung. Trotz eines ähnlichen Erscheinungsbildes unterscheiden sich beide Bauwerke jedoch maßgeblich in ihrer Konstruktion durch die Anzahl der Seilebenen und die Ausbildung der Seilquerträger. Der Aufsatz beschreibt die wesentlichen statisch‐konstruktiven Besonderheiten der Bauwerke aus Sicht der Entwurfsverfasser. New cable‐stayed bridges (Structure 29 and 4) in the course of the Autobahn A 30 – Northern bypass at Bad Oeynhausen. Closing a gap in the course of the Autobahn A 30, the Northern bypass at Bad Oeynhausen is currently under construction. Within this project two cable‐stayed bridges, Structure 29 and 4, are being constructed at the Western and Eastern ends of the bypass. The bridges are of composite construction and they have been architecturally designed to form landmarks at the respective ends of the Bad Oeynhausen bypass. Both structures carry the Autobahn A 30 across the river Werre. The main spans measure 68 m and 83 m respectively and are thus fairly short for cable‐stayed bridges. Due to the location in curved sections of the Autobahn, local constraints (such as a large skew because of the crossing angle) and the Werre being a nature reserve with FFH status, the structural design has been a demanding task. In spite of having a similar appearance both structures differ significantly in number of cable planes and the construction of the transversal girder for cable anchorages. This article describes the distinctive features of both bridges from a static and structural point‐of‐view. 相似文献
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Cable‐stayed bridge for tramway, pedestrians, and bike traffic. For the development of the new quarter “Parkstadt Schwabing” in den North of Munich, the transport connection is established by a new tramway, the line 23. Thereby, a new bridge construction became necessary for the crossing of the main circular roadway “Mittlerer Ring” at the Schenkendorfstraße. The extraordinary bridge structure in direct conjunction with the glass enclosure of the Petuel‐tunnel belongs to the most spectacular metropolitan crossing locations of Munich. 相似文献
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Thomas Klhne 《Stahlbau》2009,78(3):203-213
Evaluation of an old riveted steel bridge – The Böse‐Bridge in Berlin, Germany. This report is about the recalculation of the Böse‐Bridge in Berlin which was built between 1912 and 1916. A special feature of this three‐bayed truss arch bridge is the nickel steel used in the main bay. Different models have been used to recalculate the main structure, the truss nodes and the carriageway slab. The static analysis is based on the semi‐probabilistic concept. As a result of this recalculation the construction was classified to have the bridge capacity 30‐30 according to DIN 1072. Finally, this report concludes by determining the remaining lifetime depending on the concept of the Wöhler curves. 相似文献