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Author(s):	Berger, J.; Bruschetini-Ambro, S. Z.; David, W.; Mayrhuber, T.
Title:
Abstract:	Aufgrund der hohen Erhaltungskosten von Brücken gibt es mittlerweile unterschiedliche Ansätze, um die Dauerhaftigkeit zu erhöhen. Vorgespannte Brücken ohne Betonstahl stellen hierfür einen neuen Ansatz dar. Zur Erforschung des Tragverhaltens solcher Strukturen wurde ein Forschungsprojekt gestartet und Großversuche durchgeführt. Die Landesbaudirektion Salzburg war von dieser innovativen Idee überzeugt und hat deshalb die Technologie beim Bau der Egg-Graben Brücke ausgeschrieben. Die Egg-Graben Brücke ist eine im Grundriss gekrümmte Bogenbrücke mit einer Länge von 50 m. Nach einer Bauzeit von 18 Monaten erfolgte im November 2009 die Freigabe für den Verkehr. Der vorliegende Aufsatz beschreibt die Technologie, den Entwurf sowie die beim Bau der Brücke gesammelte Erfahrung. Design and Construction of the Egg-Graben Bridge Due to the high maintenance costs of bridges, there are now various approaches to enhance the durability. Post tensioned bridges without steel reinforcement represent one of these approaches. To investigate the structural behaviour of such constructions, a research project was started and large-scale tests were carried out. The government of the province of Salzburg could be convinced of this innovative technology and tendered out the method for the construction of the Egg-Graben Bridge. For the arch bridge, which is curved in plan, the superstructure is prestressed without using further steel reinforcement. After a construction period of 18 months the bridge was opened to traffic in November 2009. The paper describes the technology, the design and the experience gained from the construction of the bridge.
Source:	Beton- und Stahlbetonbau 105 (2010), No. 10
Page/s:	631-639
Language of Publication:	German

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