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Author(s):	Rademacher, Dennis
Title:
Abstract:	Zunehmende Schäden an Brücken in Deutschland, verbunden mit teilweise massiven langfristigen Auswirkungen auf den Straßenverkehr, haben gezeigt, wie wichtig es ist, die Dauerhaftigkeit der Infrastruktur und damit die Mobilität der Menschen sowie den Austausch von Gütern sicherzustellen. Insbesondere Korrosionsschäden können in Zukunft durch die Verwendung von alternativen Schutzsystemen für Stahl- und Verbundbrücken nachhaltig verhindert werden. Sowohl die Feuerverzinkung mit einer Schichtdicke von mindestens 200 &mgr;m als auch Wetterfeste Baustähle bieten gegenüber den traditionell angewendeten Beschichtungssystemen über den Lebenszyklus des Bauwerks entscheidende Vorteile: Sie erfordern keine Instandsetzungen und somit keinen Eingriff in den laufenden Verkehr. Bei Verwendung dieser Systeme in Verbindung mit Walzprofilen ergeben sich weitere signifikante Vorteile, die Verbundbrücken wirtschaftlich interessanter und dauerhafter machen. Maintenance-free corrosion protection for steel composite bridges with rolled sections. Increasing problems in terms of damages on bridges in Germany correlated with partly massive long-term impacts on road traffic have shown how essential it is to ensure the durability of the infrastructure and thus the mobility of people as well as the exchange of goods. In particular corrosion damages can be sustainably avoided in future by alternative protection systems for steel and composite bridges. Both the hot-dip galvanizing with a layer thickness of at least 200 &mgr;m as well as weathering steel offer crucial advantages over traditionally used coating systems considering the whole life cycle of the bridge: they require no maintenance and hence traffic interferences can be avoided. When using these systems in combination with hot-rolled sections, there are further significant advantages in making composite bridges more economical and durable.
Source:	Stahlbau 87 (2018), No. 6
Page/s:	538-546
Language of Publication:	German

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