Effects of Structural and Seismic Factors on the Constant-Strength Ductility Spectra Based on NGA-West2 Database

Table 4

Classification results of ground motion records based on epicentre distance.

Site type	Type	Epicentre distance (km)	Numbers
Stiff soil	Near-field	<30	1227
	Far-field	>30	1623
Soft soil	Near-field	<30	936
	Far-field	>30	1749