Bridges, Infrastructure
Building category
Steel construction
Construction method
Expertise, Examination
Performed services
Inland
Region
November 2012
Processing time from
December 2012
Processing time until
DI Sascha Grujic
Project manager
DI Georg Wallner
Substitute project manager
ÖBB Infrastruktur AG
Client
Frame bridges
Type of bridge
1
Number of fields
24,20 m
Maximum span
24,20 m
Length of bride
120,80 m²
Expanse of bridge
Description of project
The railway bridge across the river Isar near Scharnitz on the ÖBB-line Innsbruck - Scharnitz at km 32.090 consists of the foreland bridges (made of arches) and the main support structure over the stream bed, which was constructed as a steel structure. This steel structure was built in the early 1950s. To determine the bridge’s utilisation with the up-to-date load model LM71 and to estimate the remaining service life the ÖBB commissioned us with the recalculation and the valuation of the object.
Description of bridge
The object is a 1-section steel bridge (single-track) with a span of 24.16 m and a total width of 5.00 m. The construction consists of welded I-girders with a height of 2.20 m and a half frame to brace the lower belts. Framework on the surface level provides an overall bracing.
Description of tasks
- Recalculation of the complete steel structure including fatigue checks
- Display of figures according to the single loads
-
Evaluation of structural safety
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