Table 4: Influence of the number and locations of isolated substructures on control performance under Taft ground motion.

ProgramsMaximum displacement of top main structure (m)Maximum acceleration of top substructure (m/s2)Total input energy
×106 (J)
Transfer energy
×106 (J)
Ratio (%)

50.21453.44522.63001.810068.65
40.21502.65121.620061.13
30.22302.72391.527156.10
20.23102.93201.365846.58

4, 50.20734.55312.26001.420262.76
3, 50.21524.78482.47631.341354.16
2, 50.22144.84552.58721.446055.80

3, 4, 50.17423.05212.32921.936383.13
2, 4, 50.18163.01682.23931.669274.53

2, 3, 4, 50.12000.732.12081.852086.12