Fundamental Frequencies of Vibration of Footbridges in Portugal: From <i>In Situ</i> Measurements to Numerical Modelling

<table>Comparison of frequencies for steel box-girders and RC footbridges.</table>

Shock and Vibration

Figure 5: Fundamental Frequencies of Vibration of Footbridges in Portugal: From <i>In Situ</i> Measurements to Numerical Modelling 