Energy-Based Seismic Design Method for EBFs Based on Hysteretic Energy Spectra and Accumulated Ductility Ratio Spectra

Table 1

Equivalent velocity spectrum parameters when the acceleration amplitude is 0.2 g.

Soil type	Site group
I0	Group 1	0.14	0.09	0.38	0.28
	Group 2	0.30	0.31	0.71	0.46
	Group 3	0.52	0.73	2.28	0.31
I1	Group 1	0.18	0.12	0.42	0.32
	Group 2	0.38	0.37	0.77	0.50
	Group 3	0.58	0.77	2.34	0.35
II	Group 1	0.24	0.20	0.45	0.3
	Group 2	0.45	0.40	1.10	0.4
	Group 3	0.65	0.95	2.2	0.2
III	Group 1	0.30	0.20	1.0	0.35
	Group 2	0.40	0.40	2.0	0.75
	Group 3	0.75	1.20	4.70	0.82
IV	Group 1	0.48	0.40	1.25	0.90
	Group 2	0.55	0.60	1.20	1.00
	Group 3	1.20	0.85	4.85	1.20