Research Article
Seismic Performance Evaluations of Mega-Sub Isolation System
Table 5
Comparison of story drift responses of the substructure in X direction between the experimental and numerical simulation results (unit: mm).
| Cases | Aseismic | Isolated | LSC | Floor | Floor | Floor | 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 |
| Artificial (0.125 g) | Experiment | 2.85 | 2.89 | 3.83 | 2.20 | 2.72 | 3.49 | 2.64 | 2.82 | 3.72 | Simulation | 2.95 | 3.30 | 3.91 | 3.26 | 3.26 | 3.60 | 2.48 | 2.87 | 3.86 | Error (%) | 3.51 | 13.79 | 2.36 | 19.98 | 19.98 | 3.08 | 6.15 | 1.68 | 3.72 | El centro (0.125 g) | Experiment | 2.59 | 3.12 | 3.55 | 1.86 | 1.86 | 2.69 | 1.52 | 2.01 | 2.73 | Simulation | 2.29 | 2.86 | 3.60 | 1.50 | 1.50 | 2.23 | 1.76 | 0.34 | 2.34 | Error (%) | 11.58 | 8.33 | 1.69 | 19.29 | 19.29 | 17.0 | 15.79 | 16.29 | 14.38 | Taft (0.125 g) | Experiment | 2.74 | 1.79 | 1.01 | 1.05 | 1.05 | 1.58 | 2.49 | 1.13 | 1.89 | Simulation | 2.77 | 1.99 | 1.02 | 0.95 | 0.95 | 1.20 | 2.08 | 1.12 | 1.96 | Error (%) | 1.46 | 11.17 | 0.99 | 9.81 | 9.81 | 24.10 | 16.37 | 0.74 | 3.18 | Artificial (0.275 g) | Experiment | 5.91 | 5.11 | 7.65 | 4.72 | 4.80 | 6.96 | 5.15 | 4.98 | 7.14 | Simulation | 6.17 | 4.71 | 7.67 | 4.85 | 5.36 | 8.18 | 6.65 | 6.30 | 8.44 | Error (%) | 4.58 | 7.84 | 0.26 | 2.73 | 11.73 | 17.57 | 29.08 | 26.48 | 18.24 | El centro (0.275 g) | Experiment | 4.90 | 5.45 | 6.52 | 4.78 | 4.22 | 5.27 | 3.20 | 4.47 | 5.37 | Simulation | 4.09 | 5.14 | 6.46 | 3.84 | 4.06 | 4.98 | 4.07 | 4.65 | 5.21 | Error (%) | 16.53 | 5.51 | 0.92 | 19.81 | 3.70 | 5.50 | 27.04 | 4.04 | 2.97 | Taft (0.275 g) | Experiment | 4.56 | 3.40 | 4.53 | 3.46 | 3.03 | 3.89 | 5.17 | 2.93 | 4.20 | Simulation | 3.95 | 3.54 | 4.58 | 3.12 | 2.84 | 3.24 | 3.99 | 2.89 | 4.52 | Error (%) | 13.45 | 4.19 | 1.33 | 9.93 | 6.21 | 16.65 | 22.89 | 1.41 | 7.68 |
|
|