Table 2 Calculation results of parameter coupling effect.
No | Bulk density variation (%) | Elastic modulus variation (%) | Prestress loss (%) | Shrinkage creep | Temperature gradient (°C) | Max. deflection difference (mm) | Top slab stress difference (MPa) | Bottom slab stress difference (MPa) |
|---|---|---|---|---|---|---|---|---|
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
2 | 0 | 0 | 20 | 1 | 15 | 24.31 | 3.84 | − 8.96 |
3 | 0 | − 15 | 0 | 1 | 15 | 18.88 | 4.78 | − 6.80 |
4 | 0 | − 15 | 20 | 0 | 0 | 6.63 | − 3.87 | − 2.55 |
5 | + 5 | 0 | 0 | 1 | 0 | 2.22 | − 0.56 | 0.42 |
6 | + 5 | 0 | 20 | 0 | 15 | 22.82 | 4.06 | − 9.21 |
7 | + 5 | − 15 | 0 | 0 | 15 | 18.97 | 5.00 | − 7.02 |
8 | + 5 | − 15 | 20 | 1 | 0 | 9.20 | − 4.30 | − 2.72 |
9 | 0 | 0 | 20 | 0 | 15 | 22.63 | 4.03 | − 9.17 |
10 | 0 | − 15 | 0 | 1 | 0 | 1.40 | − 0.51 | − 0.78 |
11 | + 5 | 0 | 0 | 0 | 15 | 18.46 | 5.13 | − 6.70 |
12 | + 5 | − 15 | 20 | 1 | 15 | 25.73 | 3.76 | − 9.26 |
