Research Article

Condition Monitoring and Quantitative Evaluation of Railway Bridge Substructures Using Vehicle-Induced Vibration Responses by Sparse Measurement

Table 6

Comparison of results for the first mode identified by different methods.

Pier no.Height (m)Pile cap height (m)The first mode (Hz)
IVTMSSIRD-FFT

148#6.02.53.503.473.50
248#11.52.52.632.632.65
445#20.53.02.132.142.13