Vibration Control of Tall Buildings Using Mega SubConfiguration
Publication: Journal of Engineering Mechanics
Volume 121, Issue 10
Abstract
An innovative vibration-control system is proposed to reduce the dynamic response of tall buildings to wind and seismic loads. This system takes advantage of the so-called megasubstructure configuration, which is especially popular in tall buildings. Substructures contained in the megastructure serve as energy absorbers so that no additional mass is required for the intended vibration control as seen in the conventional mass damper systems. The proposed system naturally resolves the difficulties in augmenting damping capacities of tall buildings associated with the high rigidity and deformation in the dominant bending mode. Dynamic characteristics of the proposed control system including the frequency response and the energy flow are investigated. Optimal values of structural parameters such as the damping ratio and stiffness of the substructure are determined. The feasibility and effectiveness of this unique control system in improving human comfort and protecting structures under both wind and earthquake loads are demonstrated through analytical and numerical analysis.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Crandall, H. H., and Mark, W. D. (1963). Random vibration in mechanical systems . Academic Press, Inc., San Diego, Calif.
2.
Kaneko, M., and Mita, A. (1993). “A study on energy flow in a hybrid mass damper and its control algorithms.”J. Struct. Constr. Engrg., Japan, No. 449, 103–110.
3.
Mita, A., and Feng, M. Q. (1994). “Response control strategy for tall Buildings using interaction between mega- and sub-structures.”Proc., 1st Int. Workshop on Civ. Infrastructure Systems, Nat. Taiwan Univ., Taipei, Taiwan, 329–341.
4.
Mita, A., and Kaneko, M. (1992). “Hybrid versus tuned or active mass dampers for response control of tall buildings.”Proc., 1st Int. Conf. on Motion and Vibration Control, Japan Soc. of Mech. Engrs., Tokyo, Japan.
5.
Warburton, G. B.(1982). “Optimum absorber parameters for various combination of response and excitation parameters.”Earthquake Engrg. and Struct. Dynamics, 10(3), 381–401.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 121 • Issue 10 • October 1995
Pages: 1082 - 1088
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Oct 1, 1995
Published in print: Oct 1995
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.