Abstract
Vibration-based Structural Health Monitoring (SHM) is an area of ongoing research and has received much attention from researchers in recent years. Online damage detection methods for bridges rely on placing sensors on the structure to detect anomalies in measured parameters such as acceleration, frequency or displacement among others. Changes in these parameters can be used to infer the presence of damage such as cracking in bridge beams, foundation scour etc. These methods mostly rely on using the signals arising on a bridge from ambient traffic or environmental loading. For foundation scour detection purposes, the lateral response of a bridge is of particular interest in that this has been shown to be particularly sensitive to the scour phenomenon. Vehicle-Bridge Interaction (VBI) effects can have a significant influence on the condition of output vibrations from a bridge element. In this paper, the effect of vehicle travelling velocity on the lateral response of a typical highway two-span integral bridge is investigated. It is shown that depending on the velocity of the vehicle relative to the oscillatory period of the bridge it traverses, the bridge’s dynamic response is either amplified or diminished by varying degrees. This phenomenon could influence the accuracy of a particular damage detection method relying on output system vibrations to infer damage.
Original language | English |
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Title of host publication | Proceedings of Civil Engineering Research in Ireland 2016 |
Subtitle of host publication | 29th-30th August, Galway, Ireland |
Number of pages | 6 |
Publication status | Published - 2016 |
Externally published | Yes |
Event | The Second Civil Engineering Research in Ireland Conference 2016 - National University of Ireland, Galway, Ireland Duration: 29 Aug 2016 → 30 Aug 2016 |
Conference
Conference | The Second Civil Engineering Research in Ireland Conference 2016 |
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Abbreviated title | CERI 2016 |
Country/Territory | Ireland |
City | Galway |
Period | 29/08/16 → 30/08/16 |
Keywords
- Bridge Dynamics
- Damage Detection
- Vibration
- SHM