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, Xiaowen An, Ming Lu, and David A. Rhoades

Table S2. Model Parameters for SC IV2 Sites

Period Number	Spectral Period T (s)	CB(T)	CA(T)	SReffC	Amax
1	PGA	−0.398	−1.170	0.335	1.221
2	0.05	−0.416	−0.936	0.203	1.064
3	0.10	−0.181	−0.748	0.430	1.222
4	0.15	−0.0023	−0.680	0.630	1.412
5	0.20	0.0899	−0.665	0.738	1.537
6	0.25	0.115	−0.678	0.765	1.587
7	0.30	0.157	−0.707	0.805	1.679
8	0.35	0.190	−0.747	0.831	1.771
9	0.40	0.199	−0.792	0.828	1.829
10	0.45	0.180	−0.843	0.799	1.842
11	0.50	0.151	−0.895	0.764	1.837
12	0.60	0.0882	−1.006	0.701	1.826
13	0.70	0.0405	−1.120	0.661	1.845
14	0.80	0.0157	−1.234	0.643	1.908
15	0.90	−0.0083	−1.348	0.628	1.974
16	1.00	−0.0501	−1.461	0.605	2.006
17	1.25	−0.170	−1.734	0.554	2.045
18	1.50	−0.326	−1.994	0.499	1.998
19	2.00	−0.635	−2.478	0.417	1.879
20	2.50	−0.552	−2.201	0.422	1.772
21	3.00	−0.372	−1.740	0.455	1.676
22	3.50	−0.145	−1.186	0.534	1.586
23	4.00	0.0955	−0.635	0.750	1.522

C_B(T) and C_A(T) are coefficients; S_ReffC is the crossover effective rock spectrum at which the amplification ratio is 1.0; and A_max is the maximum amplification ratio when the rock site spectrum approaches zero.

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