Stochastic Analysis on the Resonance of Railway Trains Moving over a Series of Simply Supported Bridges

Table 3

Train-induced and bridge-induced resonant speeds.

Characteristic frequencies	Resonant speeds
Vertical frequency  = 0.69 Hz	= 81 km/h
Pitching frequency  = 0.86 Hz	= 101 km/h
The first natural frequency of the bridge fb1 = 3.88 Hz	= 346 km/h