Research Article
FEA of Effects Induced by Diurnal Temperature Variation on Downstream Surface of Xiaowan Arch Dam
Table 1
Thermal and mechanical parameters of dam concrete.
| Concrete grade | Parameter | C18040 | C18035 | C18030 |
| Thermal conductivity | kJ/(m·h°C) | 8.479 | 8.227 | 8.016 | Thermal diffusivity | m2/h | 0.003239 | 0.003116 | 0.002991 | Density | kg/m3 | | 2500 | | Specific heat | kJ/(kg°C) | 1.047 | 1.056 | 1.072 | Coefficient of linear expansion | 10−6/°C | 8.26 | 8.15 | 8.1 | Heat exchange coefficient | kJ/(m2·h°C) | | 47.1 | | Elasticity modulus | 104 MPa | 3.21 | 3.11 | 3.01 | Poisson’s ratio | | 0.24 | 0.167 | 0.167 | Compressive strength | Ra/MPa | 45.5 | 39.7 | 34.4 | Tensile strength | Rl/MPa | 3.52 | 3.36 | 3.07 | Safety factor against cracking on the surface [18, 19] | | | 1.4–1.5 | |
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