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Neuer Stahlüberbau für eine der höchsten Eisenbahnbrücken Europas

von Hubert Hunscheidt

Die Jauntalbrücke in Österreich ist mit 96 m eine der höchsten Eisenbahnbrücken Europas. Im Zuge der Errichtung der zweigleisigen Neubaustrecke Koralmbahn wird das eingleisige Bestandstragwerk der Jauntalbrücke auf ein modernes, zweigleisiges Stahlfachwerkverbundtragwerk ausgebaut. Donges SteelTec hat den Auftrag für die Fertigung, Lieferung und Montage des Stahlüberbaus erhalten. Die Fertigung des 3300 Tonnen schweren Stahltragwerks erfolgt im Werk in Darmstadt. Montiert wird die 428 m lange Stahlkonstruktion in drei Segmenten zunächst auf einer Vormontagefläche unterhalb der bestehenden Brücke. Die drei Bauelemente werden dann nacheinander quer und längs verschoben. Dabei wird das alte und neue Tragwerk miteinander verbunden und die Bestandsbrücke mit ausgeschoben.

Die spektakulären Montagearbeiten hoch oben über dem Fluss Drau beginnen Anfang Januar, wenn das erste der drei Segmente des neuen Überbaus erst quer verschoben und danach an das Bestandstragwerk gekoppelt wird. Im Februar folgt dann der erste Längsverschub. Eine technische und logistische Herausforderung für unsere Mitarbeiter und nach der Donaubrücke in Linz (Bypassbrücken) ein weiterer Meilenstein für unser Unternehmen im benachbarten Österreich.

Quelle und Foto: Donges SteelTec GmbH

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