Table 17 Strength degradation coefficient of specimens in control group VI.
Specimen | Δ/Δy | λ | Specimen | Δ/Δy | λ | ||||
|---|---|---|---|---|---|---|---|---|---|
Cycle 1 | Cycle 2 | Cycle 3 | Cycle 1 | Cycle 2 | Cycle 3 | ||||
T60-4 (HRB400) | 3.03 | 1.000 | 0.992 | 0.966 | T60-5 (HTRB630) | 2.32 | 1.000 | 0.974 | 0.973 |
4.04 | 1.000 | 0.980 | 0.970 | 3.10 | 1.000 | 1.001 | 0.983 | ||
5.05 | 1.000 | 0.997 | – | 3.87 | 1.000 | 0.994 | 0.987 | ||
4.65 | 1.000 | 0.957 | 0.960 | ||||||
5.42 | 1.000 | 0.985 | - | ||||||