Research Article
An Efficient Global Optimization Approach for Reliability Maximization of Friction-Tuned Mass Damper-Controlled Structures
Table 1
Statistical information about the random variables.
| | Random variable | Probability distribution | Mean value | Coefficient of variation (%) |
| | Building frame | | Elasticity modulus (steel) | Gamma | 200 GPa | 5.0 | | Specific mass (steel) | Gamma | 7500 kg/m3 | 5.0 | | Additional mass per story | Gamma | 44 t | 5.0 | | Damping ratio | Gamma | 0.05 | 10.0 | | FTMD | | Mass (Case 1) | Gamma | 1.94 t | 5.0 | | Mass (Case 2) | Gamma | 4.95 t | 5.0 | | Stiffness | Gamma | | 10.0 | | Friction force magnitude | Gamma | | 10.0 | | Seismic excitation | | Natural frequency of the filter | Normal | 37.3 rad/s | 20.0 | | Damping ratio of the filter | Normal | 0.30 | 20.0 | | PGA | Log-normal | 0.500 g | 20.0 |
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