Efficient Dynamic Performance Prediction of Railway Bridges Situated on Small-Radius Reverse Curves

Table 1

Comparison of modal results between numerical simulation and field measurements.

Span (m)	Natural frequency (Hz)						Modal displacement ratio between pier top and bottom
	First-order vertical bending of main beam			First-order lateral bending of main beam
	Simulation	Measurement	Error (%)	Simulation	Measurement	Error (%)	Simulation	Measurement	Error (%)
20	6.16	6.24	1.3	12.06	12.15	0.7	2.63	2.42	8.0
24	5.12	5.36	4.7	8.45	8.67	2.6	2.84	2.56	9.9