STÖBNITZ VALLEY BRIDGE

Stöbnitz Valley Bridge

Structural Monitoring at an Integral Valley Bridge

As part of the new railway route VDE 8.2, NBS Erfurt – Leipzig/ Halle the Stöbnitz Valley Bridge with a length of 297 m has been erected. The Stöbnitztalbridge is an integral building, i.e. all substructures (axis 0 to axis 14) are connected monolithically with the prestressed concrete superstructure. The building is divided by 3 so-called dividing piers (piles 2, 7 and 12) in four sections which can deform in a longitudinal direction independently to one another. Because of the prestressing and the creeping and shrinkage of the superstructure but also because of temperature loads the length of the superstructure can change which leads to constraining forces in the piers connected.

A metrological monitoring of the bridge construction is demanded by the Eisenbahnbundesamt (Federal Railway Authority) because of the low experience with this construction method.

Goal of the metrological monitoring is to collect data of the long-term deformation of the substructure consisting of temperature loads, creeping and shrinkage. Within the scope of the long-term monitoring the inter-action between the super- and the substructure will be metrologically acquainted and evaluated.

Width: 
13,00 m
Height: 
21,00 m
Length: 
297,00 m

Construction:
Integral valley bridge with a double-girdered tee-beam

Location:
Nearby Oechlitz on the route 5919 Erufrt - Leipzig/Halle (Saale) in km 258.167

Activities Marx Krontal:
Development and implementation of a monitoring concept, evaluation of the monitoring results

Monitoring:
Ends in 2016