ABSTRACT
ABSTRACT: This study proposes a damage identification method for bridges based on the trafficinduced vibration data, and shows numerical simulations. An advantage of using the traffic-induced vibration data of bridges in the damage identification may be ease of exciting the bridge. Another important point is that some highway bridges are tested before and during in service such as a moving vehicle test. It means that there exist traffic-induced vibration data available for their health monitoring. Moreover, if vehicle motions (acceleration, etc.) are measured, the data can be used for identifying external loads. The method described in this study adopts a damage identification procedure in time domain considering the physical phenomena behind the bridge-vehicle interaction problem such as time varying coefficients (damping and stiffness matrices) in the system.
