Research Article

Fundamental Frequencies of Vibration of Footbridges in Portugal: From In Situ Measurements to Numerical Modelling

Figure 8

Amplitude values in mg of the measured maximum motion at mid-span. Series 1: noise; Series 2: 1 person walking at “normal” pace (2 Hz); Series 3: 1 person jumping from 30 cm; Series 4: excitation close to resonant conditions.
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