Seismic Fragility Analysis of Buildings Based on Double-Parameter Damage Models considering Soil-Structure Interaction

Table 6

Parameters of the fragility functions in terms of PGA for the analysed structure without considering SSI effect.

Damage model	Median PGA (g)				Dispersion
	LS1	LS2	LS3	LS4	LS1	LS2	LS3	LS4
IMDR	0.29	0.46	1.03	3.69	0.85	0.88	0.88	0.92
Park–Ang	0.11	0.31	0.55	1.65	0.87	0.90	0.90	0.94
Niu	0.17	0.48	0.98	1.58	0.73	0.76	0.76	0.81
Lu–Wang	0.4	0.71	1.04	1.36	1.01	1.04	1.04	1.07