A Review of Indirect Bridge Monitoring Using Passing Vehicles

Figure 9

Wavelet transform of vehicle displacement when two cracks are considered at /3 and 2/3 of the beam with 30% crack depth and speed of 2 m/s. (A: first axle passing /3, B: second axle passing /3, C: first axle passing 2/3, and D: second axle passing 2/3), after [17].