Research Article
Seismic Performance Evaluation of Double-Skin Semi-Base-Isolated Building Using Incremental Dynamic Analysis
Table 11
Periods
and mode shapes
for the first three modes of vibration based on OpenSees program for model IFBC.
| | | Number of story | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th |
| | | 0.203 | 0.270 | 0.465 | 0.610 | 0.731 | 0.762 | 0.803 | 0.878 | 0.942 | 1.00 | | | −0.414 | −0.553 | −0.652 | −0.587 | −0.387 | 0.00 | 0.331 | 0.711 | 0.921 | 1.00 | | | 0.768 | 0.997 | 0.689 | −0.0605 | −0.325 | −0.602 | −0.945 | −0.812 | 0.0801 | 1.00 |
|
|