Research Article

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

Figure 9

The analysis results of different cases: (a) pier 1 in case 1; (b) pier 1 in case 2; (c) pier 2 in case 2; (d) pier 2 in case 3.
(a)
(b)
(c)
(d)