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Author(s):	Haspel, Lorenz
Title:
Abstract:	Die Entscheidung, bei der Stadtbahnbrücke erstmals Zugglieder aus Carbon für die Hänger eines Netzwerkbogens einzusetzen, wurde zunächst vor dem Aspekt der außergewöhnlich guten Ermüdungsfestigkeit und der daraus resultierenden möglichen Reduktion der Querschnitte getroffen. Erst in der weiteren Planung zeigte sich das Potenzial dieser Lösung auch im Hinblick auf das Gesamttragverhalten des Systems Netzwerkbogen durch Vergleichmäßigung der Hängerkräfte, Vermeidung von auf Druck ausfallenden Hängern sowie die vorteilhaften dynamischen Eigenschaften der leichten, hoch vorgespannten Zugglieder. Ergänzend zu den bereits veröffentlichten Beiträgen zum Entwurf und Tragverhalten der Stadtbahnbrücke, dem Tragprinzip des Carbonnetzwerkbogens und zu deren Fertigung und Montage soll in diesem Beitrag auf die Carbonhänger und deren Verankerungen an Bogen und Deck eingegangen werden. Carbon network arch - lessons from the first use of carbon network cables The decision to use carbon cables for the hangers of the network arch of the light rail bridge Stadtbahnbrücke was originally based on the extraordinarily good fatigue strength and the resulting possible reduction of the sections. It was only during further planning that the potential of this solution also became apparent in terms of the overall load-bearing behavior of the network arch system due to the equalization of the hanger forces, the avoidance of hangers slackening, and the advantageous dynamic properties of the lightweight, highly prestressed tensile elements. In addition to the previously published articles on the design and load-bearing behavior of the light rail bridge, the load-bearing principle of the carbon network arch, and its fabrication and erection, this contribution will focus on the carbon hangers and their anchorages to the arch and deck.
Source:	Stahlbau 91 (2022), No. 2
Page/s:	84-94
Language of Publication:	German

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