Research Article
Performance of the Cold-Bending Channel-Angle Buckling-Restrained Brace under Cyclic Loading
Table 6
Comparison of computed and measured stiffness values.
| | Specimen | Computed elastic stiffness (kN/mm) | Measured stiffness (kN/mm) | Difference | | equation (4) | equation (5) | equation (6) | equation (3) | | K2 | α | Ktotal (%) |
| | BRB-1 | 275.3 | 5,829.6 | 2,658.6 | 200.8 | 199.86 | 8.15 | 0.041 | −0.47 | | BRB-2 | 275.3 | 5,829.6 | 2,658.6 | 200.8 | 210.85 | 9.01 | 0.043 | 5 | | BRB-3 | 275.3 | 5,829.6 | 2,658.6 | 200.8 | 192.22 | 7.01 | 0.036 | −4.27 |
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