Pedestrian bridge Jan Linzelviaduct - Tuned Mass Dampers Preventing Pedestrian Vibrations
The Pedestrian bridge Jan Linzel Viaduct in the Netherlands has a length of 345 meters and crosses over the highway A4. The bridge is a multi-span bridge with the longest span being 85 meters. This bridge is named after a Dutch fighter pilot who served in the 2nd world war.
To prevent unallowable vibrations by pedestrians, Flow Engineering designed a cascade of Tuned Mass Dampers installed throughout the length the bridge. The first and second modes of vibrations needed to be damped which are primarily present at the span over the highway. The fourth mode needed also additional damping which was located at the smaller span at the other side of the bridge.
A video about the result of the Tuned Mass Damper can be seen here.