|construction||Prestressed concrete girder bridge|
|overall length||467 m|
|Number of openings||3|
|Longest span||301 m|
|Clear height||20 m|
|opening||November 14, 1998|
The Stolmabrua ( German "Stolma Bridge" ) is the most widely spanned prestressed concrete girder bridge in the world with a span of 301 m . The road bridge opened to traffic in 1998 is in Norway, around 50 km south of Bergen . It spans the Stolmasund and connects the islands of Stolmen and Selbjørn .
The 467 m long and 9.0 m wide prestressed concrete structure has three bridge spans. The spans are 94 m on the shore of Selbjørn and 72 m on the shore of Stolmen. The main opening spans 301 m and was cantilevered . The bridge cross-section consists of a 7.0 m wide box girder, the height of which varies between 3.5 m in the middle of the bridge and 15.0 m above the pillars. To reduce the weight of the superstructure, lightweight concrete of strength class LC 60 with a density of 1.94 kg / dm³ was used over a length of 184 m in the middle of the main opening . The marginal fields, which are relatively short in relation to the main span, are also ballasted with gravel.
- Manfred Curbach, Harald Michler, Silke Scheerer: Cantilever arch . In: Handbuch Brücken , Gerhard Mehlhorn (Ed.), P. 765, Springer-Verlag, Berlin Heidelberg 2007, ISBN 978-3-540-29659-1