Seismic Test and Simulation of Spring Vibration Isolated Foundation for Turbo-Generator
Table 7
Spring deformation and displacement of TG deck (mm).
Earthquake type and condition
Direction
Method
Column number
C1
C2
C3
C4
C5
C6
C7
Artificial synthetic
1
T
Test
14.64 (39%)
16.60 (45%)
8.14 (22%)
6.16 (17%)
8.95 (24%)
12.68 (34%)
11.63 (31%)
Simulation
8.09 (25%)
7.19 (22%)
5.50 (17%)
5.45 (17%)
9.20 (28%)
9.86 (30%)
12.47 (38%)
2
L
Test
5.73 (18%)
6.11 (19%)
5.44 (17%)
5.41 (17%)
8.29 (25%)
8.81 (27%)
7.91 (24%)
Simulation
14.81 (41%)
12.12 (34%)
7.03 (20%)
7.00 (20%)
14.62 (41%)
14.63 (41%)
13.76 (38%)
Imperial Valley
3
T
Test
8.08 (31%)
8.20 (32%)
5.39 (21%)
4.47 (17%)
5.32 (20%)
10.16 (39%)
5.44 (21%)
Simulation
6.45 (26%)
5.62 (23%)
4.57 (19%)
4.53 (18%)
7.48 (30%)
7.70 (31%)
9.90 (40%)
4
L
Test
7.52 (16%)
8.21 (17%)
6.94 (15%)
7.76 (16%)
11.99 (25%)
11.53 (24%)
11.35 (24%)
Simulation
11.94 (25%)
13.29 (27%)
3.58 (7%)
3.22 (7%)
14.61 (30%)
15.23 (31%)
15.73 (32%)
Alaska
5
T
Test
14.97 (36%)
15.92 (38%)
9.83 (23%)
6.89 (16%)
8.38 (20%)
14.76 (35%)
6.49 (15%)
Simulation
9.08 (24%
8.34 (22%)
5.66 (15%)
5.70 (15%)
10.82 (29%)
11.13 (30%)
14.44 (39%)
6
L
Test
7.53 (19%)
6.77 (17%)
6.40 (16%)
5.92 (15%)
5.70 (15%)
7.95 (20%)
7.57 (19%)
Simulation
9.98 (26%)
10.78 (28%)
3.74 (10%)
3.62 (10%)
12.00 (32%)
12.99 (34%)
13.10 (35%)
Note. In parentheses, the ratio of spring deformation to top deck displacement is expressed in percentage. T means transverse and L means longitudinal.
