Seismic Performance Evaluation of Double-Skin Semi-Base-Isolated Building Using Incremental Dynamic Analysis

Table 13

Fundamental period of prototype structures.

Structures	Opensees model	ETABS model
IFBC-10th	0.51	0.538
IIC-10th	0.569	0.624
IFBC-All	0.3947	0.446
IIC-All	0.4	0.432
IIC	0.87	0.909
IFBC	0.717	0.783