Ölfusá is Iceland’s largest river. The purpose of the project was to develop a robust and simple monitoring system for health monitoring of the old suspension bridge crossing the river. For the purpose, a bi-axial accelerometer was developed and installed on the bridge for a continuous evaluation of the natural frequency of the bridge’s back-stay, through back-calculation of the measured natural frequency.
The distribution of the cable force between the two cable plans is a simple, yet efficient measure of the condition of the bridge.
Determination of natural frequencies and cable force on the Ölfusá road bridge.
The project was completed in summer 2014.
If you wish to read further about the structural health modeling of the Ölfusá Suspension Bridge, read Kristján Uni Óskarsson’s (Faculty of Civil and Environmental Engineering University of Iceland) thesis on the matter here.