Three-Dimensional Nonlinear Seismic Response of Shield Tunnel Spatial End Structure

Table 6

Details of original ground motion records used for site response analysis.

Earthquake event	Station site condition	Magnitude	Distance from the epicenter (km)	Ground motion component	PGA ()	Duration D5-95 (s)	Mean frequency fp (Hz)
Darfield	Page Road Pumping (PRP) Station	Ms 7.1	53.53	NS	0.230	22.29	0.34
				UD	0.318	15.08	11.22
Iwate	IWTH27	Ms 7.2	56.85	NS	0.347	20.44	8.54
				UD	0.128	22.4	14.21