Table 3 Evaluated NPUSAD-SDOF systems with varying parameters.
Model no. | Parameters | μ | αc | θ | γs,c,a | β1 | β2 | αb | μcollapse |
|---|---|---|---|---|---|---|---|---|---|
1 | Base model | 4 | − 0.3 | 0.07 | 100 | 0.1 | − 1 | 0.6 | 6.11 |
2 | Ductility capacity | 2 | − 0.3 | 0.07 | 100 | 0.1 | − 1 | 0.6 | 4.38 |
3 | 6 | − 0.3 | 0.07 | 100 | 0.1 | − 1 | 0.6 | 7.84 | |
4 | Soften stiffness | 4 | − 0.5 | 0.07 | 100 | 0.1 | − 1 | 0.6 | 5.37 |
5 | 4 | − 0.1 | 0.07 | 100 | 0.1 | − 1 | 0.6 | 8.59 | |
6 | P-Δ effect | 4 | − 0.3 | 0 | 100 | 0.1 | − 1 | 0.6 | 7.53 |
7 | 4 | − 0.3 | 0.14 | 100 | 0.1 | − 1 | 0.6 | 5.14 | |
8 | Cyclic deterioration | 4 | − 0.3 | 0.07 | 25 | 0.1 | − 1 | 0.6 | 6.11 |
9 | 4 | − 0.3 | 0.07 | 150 | 0.1 | − 1 | 0.6 | 6.11 | |
10 | Transition displacement ratio | 4 | − 0.3 | 0.07 | 100 | − 0.1 | − 1 | 0.6 | 6.11 |
11 | 4 | − 0.3 | 0.07 | 100 | 0.3 | − 1 | 0.6 | 6.11 | |
12 | Positive-to-negative stiffness ratio | 4 | − 0.3 | 0.07 | 100 | 0.1 | − 1.5 | 0.6 | 6.11 |
13 | 4 | − 0.3 | 0.07 | 100 | 0.1 | − 0.5 | 0.6 | 6.11 | |
14 | Connecting stiffness ratio | 4 | − 0.3 | 0.07 | 100 | 0.1 | − 1 | 0.4 | 6.11 |
15 | 4 | − 0.3 | 0.07 | 100 | 0.1 | − 1 | 0.8 | 6.11 |
