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

Table 15

HE/IE spectra shape parameters for site class E.

	Mean + σ				Mean + 2σ
	Hysteresis model BP
µ	2	3	4	5	2	3	4	5
	0.521	0.651	0.693	0.717	0.535	0.658	0.7	0.724
(s)	3.808	3.45	3.241	2.905	3.857	3.547	3.316	2.852
	−0.0567	−0.07	−0.0575	−0.0483	−0.0571	−0.0771	−0.06	−0.0457
	0.736	0.892	0.88	0.858	0.756	0.932	0.899	0.855
	Hysteresis model SD
µ	2	3	4	5	2	3	4	5
	0.633	0.708	0.736	0.746	0.631	0.704	0.73	0.741
(s)	2.307	1.867	1.317	1.2	2.4	1.861	1.357	1.353
	−0.0483	−0.0471	−0.0459	−0.0521	−0.0483	−0.0471	−0.0395	−0.0476
	0.745	0.796	0.796	0.809	0.739	0.780	0.783	0.805
	Hysteresis model BF
µ	2	3	4	5	2	3	4	5
	0.347	0.426	0.454	0.469	0.355	0.432	0.462	0.476
(s)	3.053	2.428	2.323	2.136	3.07	2.472	2.279	2.273
	−0.021	−0.0225	−0.03	−0.035	−0.021	−0.0225	−0.0275	−0.035
	0.411	0.481	0.524	0.544	0.419	0.481	0.525	0.555
	Hysteresis model BS
µ	2	3	4	5	2	3	4	5
	0.332	0.313	0.256	0.208	0.358	0.306	0.241	0.195
	0.0591	0.0968	0.122	0.143	0.054	0.0945	0.118	0.139
(s)	0.767	0.824	0.956	1.095	0.748	0.867	1.096	1.334
	0.314	0.355	0.367	0.372	0.322	0.359	0.382	0.3991
(s)	5	5	5	5	5	5	5	5
	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A