Research Article
Performance Analysis of Prefabricated Steel-Spring Floating-Slab Track and Its Application to Urban Express Rail Transit
Table 9
Vertical-vibration index of the rail.
| | Calculation working condition | Vertical displacement of the rail | RMS of lateral-vibration acceleration of the floating slab | | L = 3.6 m | L = 4.8 m | L = 3.6 m | L = 4.8 m | | 350 | 450 | 550 | 350 | 450 | 550 | 350 | 450 | 550 | 350 | 450 | 550 |
| | Straight line-140 | 4.794 | 4.860 | 4.919 | 4.045 | 3.980 | 4.025 | 7.754 | 7.701 | 7.682 | 7.572 | 7.577 | 7.671 | | Straight line-160 | 4.891 | 4.983 | 5.058 | 4.038 | 4.124 | 4.240 | 8.669 | 8.566 | 8.579 | 8.482 | 8.472 | 8.443 | | Straight line-200 | 5.182 | 5.342 | 5.506 | 4.376 | 4.526 | 4.618 | 10.331 | 10.309 | 10.300 | 9.921 | 9.986 | 9.989 | | Curve-140 | 5.258 | 5.256 | 5.291 | 4.299 | 4.236 | 4.218 | 7.657 | 7.610 | 7.586 | 7.578 | 7.579 | 7.607 | | Curve-160 | 5.301 | 5.333 | 5.410 | 4.199 | 4.274 | 4.408 | 9.909 | 8.763 | 8.599 | 8.566 | 8.586 | 8.566 | | Maximum per 100 mm range of change (%) | 3.1 | 3.4 | 11.6 | 1.2 |
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Thickness (mm) of steel-spring floating-slab-track bed; L: length; RMS: root mean square. |
