Civil Engineering Reference
In-Depth Information
Table 4.5
Participation factors and effective masses for the first 15 modes in the X, Y, and Z directions
Mode
Frequency
(Hz)
X direction
Y direction
Z direction
Participation
factor
Effective
mass
Participation
factor
Effective
mass
Participation
factor
Effective
mass
1
33
11.801
127.423
-0.046
0.002
-0.322
0.095
2
35
0.026
0.001
12.237
137.014
-0.150
0.021
3
62.6
-2.738
6.859
0.032
0.001
-4.654
19.819
4
68.4
-0.097
0.009
0.196
0.035
0.241
0.053
5
73.6
1.650
2.492
3.936
14.175
0.579
0.307
6
96
-2.171
4.311
0.196
0.035
-9.470
82.055
7
98.4
0.123
0.014
-0.216
0.043
-0.143
0.019
8
104.6
3.241
9.613
0.004
0.000011
-6.163
34.756
9
119.8
2.990
8.178
-2.899
7.691
-1.571
2.258
10
128.3
0.021
0.0004
0.068
0.004
3.214
9.452
11
137
0.239
0.052
0.122
0.014
-2.311
4.889
12
152.5
-0.016
0.0002
-0.005
0.000023
-1.419
1.843
13
153.8
-0.009
0.00007
-1.040
0.989
1.503
2.066
14
157.3
-0.163
0.024
0.425
0.165
1.017
0.947
15
165.2
0.192
0.034
0.824
0.622
-0.534
0.261
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