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Experimental Evaluation on the Vibration Control Effect of Tuned Liquid Damper with Embossment  

Ju, Young Kyu (대우건설기술연구소)
Kim, Dae Young (대우건설기술연구소)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.6, 2002 , pp. 765-772 More about this Journal
Abstract
Many researchers have studied several vibration control devices such as TMD, TLD, and VED to reduce the acceleration level for tall buildings. Advantages of TLD (tuned liquid damper) include easy installation, low cost, and less maintenance. However, the dynamic characteristics of TLD must be verified by experiment and analysis due to the difficulties in evaluating the characteristics of water sloshing. In this study, free vibration and dynamic excitation experiments of structure with TLD were conducted to verify vibration control force of the proposed TLD for high-rise building. The parameters were mass ratio of water to structure, number of damping nets, and aspect ratio. From the test results, the responses of structure with water tank were observed to be smaller than those of structure alone. Furthermore, better damping effect could be achieved with larger mass ratio, more damping nets, and larger aspect ratio. However, in the case of water tank with no damping net, little damping effect was obtained.
Keywords
Coupled Model of Structure-TLD; TLD; Vibration Control; Free Vibration Test; Water Tank; White Noise;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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