Table 9 Strength degradation coefficient of specimens in control group II.
Specimen | Δ/Δy | λ | Specimen | Δ/Δy | λ | ||||
|---|---|---|---|---|---|---|---|---|---|
Cycle 1 | Cycle 2 | Cycle 3 | Cycle 1 | Cycle 2 | Cycle 3 | ||||
T45-2 (C45) | 2.59 | 1.000 | 0.984 | 0.968 | T60-1 (C60) | 2.74 | 1.000 | 0.983 | 0.977 |
3.46 | 1.000 | 0.987 | 0.973 | 3.65 | 1.000 | 0.980 | 0.972 | ||
4.32 | 1.000 | 0.979 | - | 4.57 | 1.000 | 0.989 | - | ||
H45-2 (C45) | 2.06 | 1.000 | 0.970 | 0.957 | H60-1 (C60) | 2.52 | 1.000 | 0.973 | 0.949 |
2.75 | 1.000 | 0.984 | 0.969 | 3.36 | 1.000 | 0.985 | 0.981 | ||
3.44 | 1.000 | 0.989 | - | 4.20 | 1.000 | 1.001 | - | ||
T45-4 (C45) | 2.14 | 1.000 | 0.990 | 0.985 | T60-2 (C60) | 2.27 | 1.000 | 0.962 | 0.956 |
2.85 | 1.000 | 0.982 | 0.966 | 3.03 | 1.000 | 1.002 | 0.996 | ||
3.56 | 1.000 | 0.974 | 0.951 | 3.79 | 1.000 | 0.987 | - | ||
4.27 | 1.000 | 0.953 | - | ||||||
T45-5 (C45) | 2.14 | 1.000 | 0.987 | 0.985 | T60-3 (C60) | 1.70 | 1.000 | 0.992 | 0.991 |
2.86 | 1.000 | 0.994 | 0.991 | 2.26 | 1.000 | 0.987 | 0.977 | ||
3.57 | 1.000 | 0.991 | 0.982 | 2.83 | 1.000 | 0.988 | - | ||
4.29 | 1.000 | 0.988 | - | ||||||