The main objective of field measurements on railway bridges is to quantify model error and also improve numerical models by validation and model updating. To achieve this, a measurement system has been designed with the following specifications:

• 20 triaxial accelerometers
• 40 channels for strain measurements
• RTD temperature measurements
• GPS clock for synchronization with other measurement systems
• Network capability for remote control and storage of data

The system is being installed on Stjørdalselva railway bridge in the second quarter of 2016. To make things a bit more interesting, the bridge lies just a few hundred meters from Hell railwaystation, the construction is a pony truss riveted steel bridge from 1902 with five spans at 35m.

People:

There is currently one PhD candidate working with this railway bridge measuring system:

• Gunnstein Thomas Frøseth