A New Hybrid Control of mega-Sub Controlled Structure under Seismic Excitation

Article Preview

Abstract:

Mega-sub controlled structure (MSCS) is a new structural configuration presented recently and has received widespread attention . To further improve the structural control effectiveness of MSCS, in this paper, a new hybrid control method is proposed which employ active control and adjust the stiffness of substructure together to form a huge hybrid controlled system based on the particular conformation characteristic of MSCS. The control law and dynamic equation to assembling parameter matrixes for the MSCS subjected to horizontal seismic excitation are presented. The result indicates that, compared with the corresponding status without actuators, the new structure employing hybrid control method proposed in this paper has the ability to develop a high level of response control effectiveness when subjected to seismic excitations and does significantly further reduce the responses of structure; a much better control effectiveness will be obtained after parameters optimization.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

1596-1599

Citation:

Online since:

August 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Erkus B, Abe M and Fujino Y (2002), Investigation of semi-active control for seismic protection of elevated highway bridges, Engineering Structures, 24: 281-293.

DOI: 10.1016/s0141-0296(01)00095-5

Google Scholar

[2] Ko HS, Lee KY and Kim HC (2004), An intelligent based LQR controller design to power system stabilization, Electric Power Systems Research, 71: 1-9.

DOI: 10.1016/j.epsr.2003.12.015

Google Scholar

[3] Lian YD, Zhang XA, Cherry S (2007), Damping characteristics of friction damped braced frame and its effectiveness in the mega-sub controlled structure system, Earthquake Engineering and Engineering Vibration, 6(2): 171-181.

DOI: 10.1007/s11803-007-0732-4

Google Scholar

[4] Ou JP (2003), Structural vibration control, First edition, The Press of Science, Beijing, 80-86.

Google Scholar

[5] Zhang YH and Liang QZ (2000), The earthquake resistant philosophy and initial design of megaframe with suspension systems, Engineering Mechanics (in Chinese), 17(2), 10-17.

Google Scholar