Civil Engineering Reference
In-Depth Information
(a)
80
120
x
1
(
t
)
MSM
SSM
x
2
(
t
)
MSM
SSM
40
60
0
0
-40
-60
-120
-80
0
2
4
6
8
10
0
2
4
6
8
10
Time (s)
Time (s)
(c)
(d)
0.4
·
1
(
t
)
0.8
x
MSM
SSM
·
2
(
t
)
x
MSM
SSM
0.2
0.4
0
0
-0.2
-0.4
-0.4
-0.8
0
2
4
6
8
10
0
2
4
6
8
10
Time (s)
Time (s)
(e)
(f)
6
8
··
1
(
··
2
(
MSM
SSM
MSM
SSM
x
t
)
x
t
)
6
4
4
2
2
0
0
-2
-2
-4
-4
-6
-6
0
2
4
6
8
10
0
2
4
6
8
10
Time (s)
Time (s)
Figure 8.12
Response comparison of the MDOF system using the MSM and SSM: (a) First, floor
displacement;
(b) Roof displacement;
(c)
first
floor velocity;
(d)
roof velocity;
(e)
first
floor
acceleration; (f ) roof acceleration.
