Research Article
Optimal Evaluation of the Rheological Parameters for STF Dampers in Semi-Rigid Joints of Steel Structures Using Response Surface Method
Table 6
Point prediction of the response factors.
| Response output | Predicted mean | Predicted median | Std dev | SE mean | 95% CI low for mean | 95% CI high for mean | 95% TI low for 99% pop | 95% TI high for 99% pop |
| Complex viscosity | 98.6919 | 98.6919 | 22.7266 | 7.71753 | 82.9078 | 114.476 | 10.6652 | 186.719 | Cd (damping constant) | 446.995 | 446.995 | 245.544 | 83.3824 | 276.459 | 617.531 | ā504.07 | 1398.06 | Effective stiffness | 449.89 | 449.89 | 80.2473 | 27.2505 | 394.157 | 505.624 | 139.069 | 760.712 |
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