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Author(s):	Pelke, Eberhard; Zichner, Tilman
Title:
Abstract:	Die Ertüchtigung der Nibelungenbrücke im Verlauf der B47 über den Rhein bei Worms war eine sehr komplexe Maßnahme, da die Vorlandbrücken, deren Entstehung in den letzten Jahren des 19. Jahrhunderts lag, mit einer Strombrücke, die eine der ersten im Freivorbau errichtete Spannbetonbrücke ist, verknüpft sind. Ihre Konzeption musste sich nach den noch vorhandenen und aus wirtschaftlichen Gründen weiter zu verwendenden Fundamenten der im 2. Weltkrieg zerstörten Brücke aus Stahlfachwerkbögen richten. Zudem gab es weder eine gültige Spannbetonnorm noch Richtzeichnungen für die konstruktive Durchbildung. Dieser Bericht konzentriert sich auf die eher ungewöhnlichen Baumaßnahmen zur Ertüchtigung von Strombrücke und Vorlandbrücken. Auf die “üblichen” Instandsetzungsarbeiten, wie z. B. Betonersatz, Bau eines neuen Treppenturmes oder Erneuerung von Entwässerung, Abdichtung und Belag, wird nicht eingegangen. The Improvement of the Nibelungen Bridge at Worms The improvement of the Nibelungen Bridge crossing the river Rhine at Worms as part of the B 47 has been a very complex task due to the fact that the foreshore bridges built in the last years of the 19th century were linked to a river bridge, which is one of the first prestressed concrete bridges constructed using the cantilever method. Its conceptual design had to comply with the still existing and for economic reasons to be reused foundations of a steel framework bridge destroyed during the Second World War. Moreover, both a valid standard for prestressed concrete constructions and guidance drawings were lacking. This article concentrates on the rather extraordinary approach to improve the river bridge and the foreshore bridges. It will not enlarge on conventional rehabilitation work as e.g. concrete replacement, construction of a new stair tower or renewal of drainage, sealing and covering.
Source:	Beton- und Stahlbetonbau 110 (2015), No. 2
Page/s:	113-130
Language of Publication:	German

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