Effect of alternative load path design method on preventing progressive collapse and reducing the rehabilitation cost using FEMA-P58

Journal of Engineering and Applied Science

Table 11 Acceleration values for 1 s. Spectral period for different return periods

Probability of Exceedance	Return Period (years)	λ	Sa(g) (T = 1 s.)
10% in 10 years	95	0.010526316	0.0299
20% in 50 years	224	0.004464286	0.05
10% in 50 years	475	0.002105263	0.0749
15% in 100 years	615	0.001626016	0.08
15% in 200 years	1230	0.000813008	0.11
10% in 500 years	4745	0.000210748	0.18