Inertial Effects on Finite Length Pipe Seismic Response

Table 3

Ratio 𝑅 between the maximum axial strain of the pipe and of the soil neglecting inertial terms.

𝐿 [m]	Infinite length	Finite length
	Equations (3.6)–(3.9)	O’Rourke et al.		FLBDWF
		free-free	pin-pin	free-free	pin-pin
25	0.9846	0.0416	1.000	0.3001	0.9980
150		0.2495	1.000	0.9846	0.9922
250		0.4158	1.000	0.9846	0.9922