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

Table 3

Case settings and description.

Case no.	Pier height (m)	Scenario settings	Description
1	5	β = 1 at Pier 1 and β = 1 at Pier 2	Intact
2	5	β = 0.65 at Pier 1 and β = 1 at Pier 2	Single condition degradation
3	8	β = 0.9 at Pier 1 and β = 0.9 at Pier 2	Multiple condition degradation