Research Article
Seismic Performance Evaluation of Double-Skin Semi-Base-Isolated Building Using Incremental Dynamic Analysis
Table 12
Periods
and mode shapes
for the first three modes of vibration based on ETABS program for model IFBC.
| | | Number of story | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th |
| | | 0.161 | 0.292 | 0.434 | 0.555 | 0.696 | 0.808 | 0.787 | 0.929 | 0.969 | 1.00 | | | −0.388 | −0.601 | −0.744 | −0.648 | −0.399 | 0.00 | 0.373 | 0.636 | 0.858 | 1.00 | | | 0.802 | 1.00 | 0.787 | 0.253 | −0.456 | −0.645 | −0.991 | −0.924 | −0.167 | 1.00 |
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