Frequency Estimation on Two-Span Continuous Bridges Using Dynamic Responses of Passing Vehicles

Researchers in the structural health monitoring field have recently focused on using instrumented vehicles, usually equipped with accelerometers, as mobile bridge inspection instruments. The vehicle plays two roles: that of the measurement device and that of the excitation source. Permanent changes to the bridge’s stiffness due to damage or wear may manifest as changes in the bridge’s fundamental frequencies. In vehicle-based inspection, bridge...