Experimental and Numerical Investigation of the Effect of Standing People on Dynamic Properties of a Beam-Like Bridge

Table 1

Dynamic characteristics of the bridge.

Mode number	Test bridge (total weight 3500 kg)
	Frequency (Hz)	Damping ratio (%)	Mode description
1	2.83	0.42	1st bending
2	10.84	0.43	2nd bending
3	19.92	0.53	1st torsion
4	23.24	0.60	3rd bending