Civil Engineering Reference
In-Depth Information
El Centro (NS, May 18, 1940), the acceleration peak of which is adjusted to 0.5 g. The actuators
are the same to that in Example 9.2.
Figure 9.16 shows the displacement, velocity, acceleration and plastic rotation of the selected
floors responses. Figure 9.17 shows the rotations versus time history of the PH #1, #3, #7 and
#9 under the earthquake motion.
Figure 9.18 shows the relationship diagrams of MRD damping force versus story displace-
ment and story velocity with the MBC strategy. The conclusion can be obtained, that the
direction of MRD damping force is opposite to the story velocity.
(a)
(b)
0.003
0.0004
θ
1
(
t
)
θ
3
(
t
)
0.002
0.0002
0.001
0
0
-0.0002
-0.001
-0.002
-0.0004
0
5
10
15
20
25
0
5
10
15
20
25
Time (s)
Time (s)
(d)
(c)
0.003
0.0004
θ
7
(
t
)
θ
9
(
t
)
0.002
0.0003
0.001
0.0002
0
0.0001
-0.001
0
-0.002
-0.0001
0
5
10
15
20
25
0
5
10
15
20
25
Time (s)
Time (s)
Figure 9.17
Plastic rotation of selected PHs: (a) #1; (b) #3; (c) #7; (d) #9. Gang Li, Qifeng Liu, Hongnan
Li. Inelastic structural control based on MBC and FAM, Mathematical Problems in Engineering,
vol. 2011, Article ID 460731, 18 pages, 2011. doi:10.1155/2011/460731.
