Table 3 Main characteristic parameters
|  | Direction | Yield point | Ultimate point | Ductility coefficient μ = Δu/Δy | ||
|---|---|---|---|---|---|---|
|  | Δy (mm) | Fy (kN) | Δu (mm) | Fu (kN) | ||
DGPS | Positive | 19.56 | 3.37 | 32.00 | 5.30 | 1.64 |
Negative | −2.62 | −1.83 | −22.01 | 0.79 | 8.40 | |
DGZT | Positive | 3.41 | 2.99 | 19.74 | 4.65 | 5.79 |
Negative | −4.88 | −1.73 | −32.00 | −3.41 | 6.56 | |
DGJ | Positive | 9.26 | 3.97 | 11.90 | 4.78 | 1.29 |
Negative | −8.02 | −1.69 | −21.65 | −2.32 | 2.70 | |
