Structural diagnosis of bridge using output-only vibration in moving vehicle laboratory experiment

Abstract

This paper investigates feasibility for bridge health monitoring from output-only vibration measurements in a moving vehicle laboratory experiment. A parameter from the AR coefficient is also adopted to detect abnormality of the bridge. Consideration goes into structural diagnosis of the bridge from pattern change of identified system parameters due to damage. Observations demonstrate the feasibility of structural diagnosis of the bridge from the identified system parameters of the vehicle-bridge interactive system.