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Author(s):	Maulhardt, Christoph; Haug, Holger; Schumm, Marc
Title:
Abstract:	Herrn Dipl.-Ing. Wolfang Eilzer zur Vollendung des 65. Lebensjahres gewidmet. Im Zuge der neuen Ortsumfahrung der Gemeinde Benningen ist in den vergangenen beiden Jahren eine elegant geschwungene neue Neckarbrücke entstanden. Die 195 m lange Stahlverbundbrücke bildet neben ihrer wichtigen Funktion zur Reduzierung der Verkehrsbelastung in Benningen ein gestalterisch prägendes Bauwerk, das sich in die Umgebung der Weinberge an der Neckarschleife harmonisch einfügt. Das wartungsarme, semi-integrale Tragwerk weist aufgrund seiner doppelt gekrümmten Form im Grund- und Aufriss eine komplexe Geometrie sowie weitere Besonderheiten in der konstruktiven Ausbildung der Detailpunkte auf. Dabei sind insbesondere die nachgiebig auszuführenden Gründungen im Bereich der Flusspfeiler, die monolithische Verbindung der Stummelpfeiler zu den aus Stahlhohlkastenquerschnitten gebildeten Schrägstielen und die Ausbildung der markant gestalteten Rahmenecken zu nennen. Über die daraus resultierenden Herausforderungen und Lösungen innerhalb der Planung und Bauausführung wird im Folgenden berichtet. Construction of the new Neckar River Bridge in Benningen In the course of the new bypass around the community of Benningen, an elegantly curved new Neckar River bridge has been built over the past two years. In addition to its important function of reducing the traffic load in Benningen, the 195 m long steel composite bridge forms a structurally defining structure that blends harmoniously into the surroundings of the vineyards on the Neckar loop. The low-maintenance, semi-integral structure has a complex geometry due to its double-curved shape in plan and elevation, as well as other special features in the design of the details. Particular mention should be made of the flexible foundations in the area of the river piers, the monolithic connection of the stub piers to the inclined posts made of hollow steel box cross-sections and the design of the strikingly designed frame corners. The following reports on the resulting challenges and solutions in planning and construction.
Source:	Stahlbau 90 (2021), No. 10
Page/s:	720-730
Language of Publication:	German

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