Research Article
Seismic Response Analysis of Fully Base-Isolated Adjacent Buildings with Segregated Foundations
Table 2
Natural frequency of FFB and FBI systems considering the governor modes.
| | Mode | FB | Mode | BI | | T (s) | ω (Hz) | Mass part. ratio | T (s) | ω (Hz) | Mass part. ratio |
| | 1 | 2.000 | 0.500 | 0.470 | 1 | 3.524 | 0.284 | 0.628 | | 4 | 0.962 | 1.039 | 0.301 | 3 | 2.435 | 0.411 | 0.357 | | 7 | 0.795 | 1.258 | 0.100 | 7 | 1.110 | 0.900 | 0.012 | | 11 | 0.440 | 2.271 | 0.043 | 10 | 0.558 | 1.791 | 0.001 |
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