Research Article
Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System
Table 3
Properties of the track-bridge.
| Notation | Unit | Item | Value |
| Er | N/m2 | Young’s modulus of rail | 2.06 × 1011 | | — | Poisson’s ratio of rail | 0.3 | Ir | m4 | Mass moment of inertia of rail cross section | 2 × 3.217 × 10−5 | | kg/m | Mass per unit length of rail | 2×60.64 | Es | N/m2 | Young’s modulus of slab | 3.6 × 1010 | | – | Poisson’s ratio of slab | 0.2 | Is | m4 | Mass moment of inertia of slab cross section | 1.6 × 10−3 | | kg/m | Mass per unit length of slab | 1.2 × 103 | krs | N/m | Spring stiffness of fastener | 2 × 5.0 × 107 | crs | N·s/m | Damping coefficient of fastener | 2 × 3.625 × 104 | | N/m2 | Spring stiffness of CA layer per unit length | 2 × 1.5 × 109 | | N·s/m2 | Damping coefficient of CA layer per unit length | 2 × 8.3 × 104 | Eb | N/m2 | Young’s modulus of girder | 3.45 × 1010 | | — | Poisson’s ratio of girder | 0.2 | Ib | m4 | Mass moment of inertia of girder cross section | 12.744 | | kg/m | Mass per unit length of bridge girder | 2.972 × 104 | ζb | — | Damping ratio of girder | 0.05 |
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