A Simple Model for Vertical Dynamic Interactions among a Group of Strip Footings Rested on Homogeneous Half-Space

Table 2

The convergence of the vertical impedance of a single strip footing.

N	a0 = 0.25		a0 = 1.0		a0 = 2.0
	K	C	K	C	K	C
10	0.422	0.332	0.425	1.015	0.344	2.125
20	0.423	0.336	0.425	1.033	0.352	2.165
30	0.423	0.337	0.424	1.039	0.353	2.179
40	0.423	0.338	0.424	1.042	0.354	2.186
50	0.424	0.338	0.424	1.044	0.354	2.190
60	0.424	0.339	0.424	1.045	0.354	2.193
70	0.424	0.339	0.424	1.046	0.355	2.194
80	0.424	0.339	0.424	1.047	0.355	2.195
90	0.424	0.339	0.424	1.047	0.355	2.196
100	0.424	0.339	0.424	1.047	0.355	2.197
110	0.424	0.339	0.424	1.047	0.355	2.197

Note. These impedance values are normalized as K/(Gπ) and C/(Gπ). The calculation parameters are , a₀ = kL/2.