Table 3 Track system dynamic parameters.

From: A simplified method for determining earthquake early warning thresholds in high speed railways

Name

Thickness (m)

Elasticity modulus GPa

Poisson ratio

Density kg/m3

Steel rail

0.176

206

0.3

7800

Track slab

0.19

35.5

0.1

2400

  1. Fastener stiffness 78kN/mm damping coefficient 50 kN s/m.
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