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Author(s):	Hauser, Holger; Seitz, Peter
Title:
Abstract:	Im Zuge der Beseitigung eines beschrankten Bahnüberganges in der südwestlich von Gelnhausen gelegenen Gemeinde Hasselroth am Rande des Spessarts erfolgte der Neubau einer Umgehungstraße inkl. eines Brückenbauwerks, welches die DB Gleise zukünftig planfrei überführt. Die im Grundriss stark gekrümmte, 7-feldrige, semi-integrale Plattenbalkenbrücke wurde im bahnüberspannenden Mittelfeld in Stahlverbundbauweise und in den anschließenden Feldern in Spannbetonbauweise hergestellt. Links und rechts des Hauptfeldes treffen Stahlverbundüberbau, Spannbetonüberbau und die dort integrierten Pfeiler in einem Knotenpunkt zusammen. Aufgrund der äußerst beschränkten Abmessungen und der komplizierten geometrischen Verhältnisse stellte die konstruktive Lösung zur Vereinigung der drei Bauweisen Stahlbeton, Spannbeton und Stahlverbund in einem Punkt eine große Herausforderung für Planung und Ausführung dar. Railway crossing at Hasselroth - Special detailed design challenges In order to eliminate a level crossing in the municipality of Hasselroth, a small town located southwest of Gelnhausen at the edge of the Spessart range, a bypass road including a grade-separated crossing of the railway tracks was constructed. Fitting into a tightly curved alignment, the 7-span, semi-integral girder bridge was designed with a steel-concrete composite cross-section across the tracks while the other spans are made entirely of prestressed concrete. To either side of the main span the composite and prestressed concrete sections as well as the respective pier are joined into a single node. Due to the complicated geometry the connection of the three sections and materials (reinforced concrete, prestressed concrete and steel-concrete composite) at a single point posed a very specific structural challenge.
Source:	Bautechnik 93 (2016), No. 2
Page/s:	114-121
Language of Publication:	German

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