University of Twente Student Theses
Effect of deterioration on the performance of a steel bicycle bridge with a tuned mass damper
Heinen, David Andres (2024) Effect of deterioration on the performance of a steel bicycle bridge with a tuned mass damper.
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| Abstract: | Vibrations in pedestrian and bicycle bridges are emerging as a significant concern due to their increasing slenderness. Vibrations can result in structural damage, discomfort and, in extreme cases, bridge failure. To mitigate this issue, a tuned mass damper (TMD) can be integrated in a bridge design to reduce vibrations. This study investigates the deterioration of TMD spring stiffness and structural degradation by parametrically modelling a simply supported bicycle bridge equipped with a TMD. The aim is to assess how changes in structural dynamics caused by material deterioration affect the alignment between the bridge and the TMD. The approach consists of the following steps: parametric modelling, model calibration consisting of data collection and model updating, and an alignment analysis between the bridge and TMD. This approach has been applied to the F35 Tubantiasingel bicycle bridge in Enschede, the Netherlands. The model is used to determine new natural frequencies and amplitudes reflecting changes induced by the deterioration of the bridge and TMD. Results indicate that changes in the bridge’s natural frequency lead to detuning of the TMD, impairing its damping efficiency. This phenomenon may result in increased accelerations and discomfort for its users. |
| Item Type: | Essay (Master) |
| Faculty: | ET: Engineering Technology |
| Programme: | Civil Engineering and Management MSc (60026) |
| Link to this item: | https://purl.utwente.nl/essays/102498 |
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