Effects of Soil-Structure Interaction on Torsionally Coupled Base Isolated Machine Foundation under Earthquake Load

Table 2

Input earthquake ground motions.

Name of the earthquake	Peak acceleration ()
October 15, 1979 Imperial Valley, California (array # 5)	0.36
January 17, 1994 Northridge, California (Sylmar Station)	0.72
January 1, 1995 Kobe, KJM station	0.83