Hysteresis and Soil Site Dependent Input and Hysteretic Energy Spectra for Far-Source Ground Motions

Table 12

HE/IE spectral shape parameters for soil site class B.

	Mean + σ				Mean + 2σ
	Hysteresis model BP
	2	3	4	5	2	3	4	5
	0.459	0.583	0.642	0.671	0.472	0.592	0.652	0.678
(s)	2.275	2.008	1.727	1.573	2.372	2.108	1.805	1.599
	−0.0157	−0.0233	−0.0333	−0.0383	−0.0157	−0.02	−0.03	−0.0333
	0.495	0.63	0.7	0.732	0.51	0.634	0.706	0.732
	Hysteresis model SD
	2	3	4	5	2	3	4	5
	0.588	0.656	0.678	0.684	0.593	0.663	0.686	0.691
(s)	1.565	1.306	1.096	1.041	1.685	1.479	1.104	1.129
	−0.0362	−0.0377	−0.0423	−0.0464	−0.033	−0.0348	−0.0358	−0.0404
	0.645	0.706	0.725	0.732	0.649	0.714	0.726	0.737
	Hysteresis model BF
	2	3	4	5	2	3	4	5
	0.353	0.413	0.434	0.449	0.366	0.425	0.446	0.46
(s)	3.115	2.73	2.492	2.124	3.179	2.775	2.481	2.135
	−0.0291	−0.02	−0.022	−0.0225	−0.0291	−0.015	−0.016	−0.016
	0.443	0.468	0.489	0.497	0.459	0.467	0.486	0.494
	Hysteresis model BS
	2	3	4	5	2	3	4	5
	0.66	0.362	0.338	0.406	0.724	0.328	0.274	0.349
	0.043	0.129	0.168	0.167	0.0383	0.135	0.18	0.175
(s)	0.466	0.820	0.777	0.663	0.456	0.952	0.993	0.812
	0.350	0.426	0.430	0.436	0.369	0.448	0.452	0.458
(s)	2.112	2.03	2.589	2.211	2.141	1.956	2.729	2.207
	−0.0195	−0.0214	−0.0249	−0.028	−0.0205	−0.0186	−0.0212	−0.0236
	0.392	0.469	0.495	0.498	0.412	0.484	0.509	0.510