Damage Assessment of an SRC Frame-Core Tube Structure under the Action of a Main Aftershock Sequence

Table 15

Lower limit, mean and upper limit values of the vulnerability index (%).

Ground motion	Intensity 8 frequent earthquake			Intensity 8 fortification earthquake			Intensity 8 rare earthquake
	VIL	VIM	VIM	VIL	VIM	VIM	VIL	VIM	VIM
Main shock	5.13	11.76	18.40	23.64	33.59	43.55	45.75	56.62	67.50
Main aftershock	12.50	20.77	29.05	36.56	47.59	54.62	56.71	67.50	78.29
Different	7.37	9.01	10.65	12.92	14.00	11.07	10.96	10.88	10.79