Table 3 Isolation system parameters that give smallest max. base shear.

From: Selection of seismic isolation system parameters for the near-optimal design of structures

Earthquake

PGA

PGV

PGD

Min \(V_{b\;max}\)

\(\mu (\%)\)

\(1/\alpha \)

Max \(V_{b\;max}\)

\(\mu (\%)\)

\(1/\alpha \)

Lucerne

689.64

25.72

8.82

685.67

4

10

648.46

15

5

Yermo

240.34

50.81

41.27

1287.86

4

20

881.18

15

5

Hollister

361.99

62.78

30.18

1990.35

5

20

961.25

15

5

Lexington

433.60

84.43

14.67

1530.40

4

10

1007.60

15

5

Petrolia

649.42

89.45

30.58

2364.65

5

20

1167.90

15

5

Newhall

577.81

94.72

30.47

2170.60

5

20

1070.20

15

5

El centro

427.72

108.71

55.16

2323.61

12

20

1462.10

4

20

Sylmar

826.98

128.89

32.55

3008.63

15

20

1671.20

4

5