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RED HILL CREEK BRIDGE
Hamilton, Canada

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5 x 2-tonne Tuned Mass Dampers

​The Red Hill Creek Bridge is a pedestrian bridge, spanning 220 m (722 ft), linking the city of Hamilton with the shore of Lake Ontario. It was found that the structure could be vulnerable to excitation from pedestrian footfalls, especially if large groups of people were using the structure at the same time, as in a running race.

 

The Z-shaped bridge includes three discrete spans. Our vibration-mitigation approach included five separate tuned mass dampers: the two longer spans each received two, while the shorter south span only required a single device. All five were vertical dampers, each containing a two-tonne mass.

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