Research Article
Earthquake Influence on the Rail Irregularity on High-Speed Railway Bridge
Table 2
Similitude parameters and similarity ratios of the shaking table test.
| Property | Physical quantity | Similarity relation | Ratio |
| Material | Modulus | SE | 1 | Stress | Sσ = SE | 1 | Density | Sρ = Sσ/SaSl | 4 |
| Load | Point | | 1/144 | Line | Sω = SESl | 1/12 | Area | Sq = SE | 1 |
| Geometric | Length | Sl | 1/12 | Displacement | Sd = Sl | 1/12 | Area | | 1/144 |
| Dynamic | Acceleration | Sa | 3 | Mass | | 4/1728 | Period | | 1/6 |
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