Seismic Damage and Collapse Assessment of Reinforced Concrete Frame Structures Using a Component-Classification Weighted Algorithm

Table 6

Failure probability corresponding to different fortification intensities (SA₁ and M).

Performance level	Earthquake magnitude	Fortification intensity = 8					Fortification intensity = 9
		SA1 (cm/s^2)	M				SA1 (cm/s^2)	M
			M = 8	M = 7	M = 6	M = 5		M = 8	M = 7	M = 6	M = 5
Operational performance	Frequent earthquake	81	0.040	0.033	0.028	0.024	175	0.141	0.122	0.107	0.096
	Basic fortification	158	0.123	0.106	0.093	0.082	316	0.721	0.633	0.510	0.392
	Rare earthquake	316	0.692	0.510	0.433	0.461	491	0.960	0.857	0.800	0.758
Slight damage	Frequent earthquake	81	0.020	0.016	0.013	0.011	175	0.084	0.071	0.061	0.053
	Basic fortification	158	0.072	0.060	0.052	0.045	316	0.373	0.351	0.233	0.120
	Rare earthquake	316	0.300	0.133	0.151	0.173	491	0.754	0.626	0.503	0.185
Medium damage	Frequent earthquake	81	0.014	0.011	0.009	0.007	175	0.062	0.052	0.044	0.038
	Basic fortification	158	0.053	0.044	0.037	0.032	316	0.135	0.117	0.103	0.091
	Rare earthquake	316	0.135	0.117	0.103	0.091	491	0.206	0.181	0.162	0.346
Serious damage	Frequent earthquake	81	0.006	0.005	0.004	0.003	175	0.033	0.027	0.022	0.019
	Basic fortification	158	0.027	0.022	0.018	0.015	316	0.080	0.067	0.058	0.051
	Rare earthquake	316	0.080	0.067	0.058	0.051	491	0.230	0.212	0.140	0.087