Research Article
Experimental Study and Numerical Analysis of Structural Performance of CRTS II Slab Track under Extreme High Temperature
Table 4
Material parameters of the scaled specimen.
| | Parts | Material | Density (kg/m3) | Elastic modulus (MPa) | Poisson’s ratio | Thermal expansion coefficient (°C−1) |
| | Track slab | C55 | 2500 | 3.55 × 104 | 0.2 | 1.0 × 10−5 | | CA mortar layer | Asphalt | 2400 | 8.0 × 103 | 0.2 | 1.3 × 10−5 | | Concrete base | C40 | 2500 | 3.25 × 104 | 0.2 | 1.0 × 10−5 | | Broad-narrow joint | C55 | 2500 | 3.55 × 104 | 0.2 | 1.0 × 10−5 | | Simple box girder | C50 | 2500 | 3.45 × 104 | 0.2 | 1.0 × 10−5 | | Prestressed steel bars | Steel | 7850 | 2.1 × 105 | 0.3 | 1.18 × 10−5 |
|
|
