Activities per year
Periodic monitoring of structures such as bridges is necessary as their condition can deteriorate due to environmental conditions and ageing, causing the bridge to become unsafe. This monitoring - so called Structural Health Monitoring (SHM) - can give an early warning if a bridge becomes unsafe. This paper investigates an alternative wavelet-based approach for the monitoring of bridge structures which consists of the use of a vehicle fitted with accelerometers on its axles. A simplified vehicle-bridge interaction model is used in theoretical simulations to examine the effectiveness of the approach in detecting damage in the bridge. The accelerations of the vehicle are processed using a continuous wavelet transform, allowing a time-frequency analysis to be performed. This enables the identification of both the existence and location of damage from the vehicle response. Based on this analysis, a damage index is established. A parametric study is carried out to investigate the effect of parameters such as the bridge span length, vehicle speed, vehicle mass, damage level, signal noise level and road surface roughness on the accuracy of results. In addition, a laboratory experiment is carried out to validate the results of the theoretical analysis and assess the ability of the approach to detect changes in the bridge response.
|Title of host publication||Proceedings of the Second Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, SMAR 2013|
|Number of pages||8|
|Publication status||Published - 2013|
|Event||Second Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2013) - Istanbul, Turkey|
Duration: 09 Sep 2013 → 11 Sep 2013
|Conference||Second Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2013)|
|Abbreviated title||SMAR 2013|
|Period||09/09/2013 → 11/09/2013|
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- 1 Participation in conference
Second Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2013)
Patrick McGetrick (Speaker)09 Sep 2013 → 11 Sep 2013
Activity: Participating in or organising an event types › Participation in conference