Electronic Supplement to
Nonlinear Site Models Derived from 1D Analyses for Ground-Motion Prediction Equations Using Site Class as the Site Parameter

by J. X. Zhao, Junsheng Hu, Fei Jiang, Jun Zhou, Yingbin Zhang, Ming Lu, Xiaowen An, and David A. Rhoades

Table S4. C_B(T) for Various Impedance Ratios in SC I, SC II and SC III Sites

Site Class	Spectral Period T (s)	Impedance Ratio
		2.0	3.0	4.0	5.0	6.0	7.0	8.0
SC I	PGA	0.431	0.526	0.594	0.646	0.689	0.726	0.757
	0.05	0.444	0.531	0.593	0.641	0.680	0.713	0.742
	0.10	0.536	0.628	0.693	0.743	0.785	0.819	0.850
SC II	PGA	0.418	0.531	0.611	0.674	0.725	0.768	0.805
	0.05	0.418	0.502	0.562	0.608	0.646	0.678	0.706
	0.10	0.521	0.628	0.704	0.763	0.812	0.852	0.888
	0.15	0.554	0.687	0.782	0.855	0.915	0.966	1.010
	0.20	0.612	0.770	0.882	0.969	1.040	1.100	1.152
	0.25	0.632	0.813	0.941	1.041	1.122	1.191	1.250
	0.30	0.572	0.773	0.917	1.028	1.119	1.195	1.262
SC III	PGA	0.317	0.376	0.418	0.451	0.477	0.500	0.519
	0.05	0.348	0.369	0.384	0.396	0.405	0.413	0.420
	0.10	0.477	0.539	0.583	0.617	0.644	0.668	0.688
	0.15	0.522	0.613	0.678	0.729	0.770	0.804	0.835
	0.20	0.528	0.603	0.656	0.698	0.732	0.760	0.785
	0.25	0.465	0.545	0.601	0.645	0.681	0.711	0.737
	0.30	0.459	0.574	0.655	0.717	0.769	0.812	0.850
	0.35	0.471	0.645	0.769	0.865	0.944	1.010	1.067
	0.40	0.469	0.688	0.844	0.965	1.063	1.147	1.219
	0.45	0.451	0.693	0.865	0.998	1.107	1.199	1.279
	0.50	0.429	0.670	0.841	0.973	1.081	1.173	1.252
	0.60	0.407	0.586	0.714	0.812	0.893	0.961	1.020
	0.70	0.365	0.529	0.645	0.735	0.809	0.871	0.925

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