AIJ Journal of Technology and Design
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
VIBRATION CONTROL SYSTEM USING U-SHAPED WATER TANK(Structures)
Ritsuko ISHIKAWAOsamu YOSHIDAMatsutaro SEKITakao NISHIKAWA
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2005 Volume 11 Issue 22 Pages 151-156

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Abstract
This report describes about new vibration control system using resonance of water sloshing in a U-shaped water tank whose natural period is adjusted to that of the main structure. One challenging issue is to control the structural responses in both horizontal directions with a single water tank. This paper proposes a design formula for calculating the natural period of the system by examining the measured results of devices installed in an office building. The damping effect of water sloshing, including fluid resistance of the water tank and supplemental damping devices submerged in the tank, is also examined analytically. Finally, advantage on the system is confirmed using observed response of actual building with earthquake and strong wind.
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© 2005 Architectural Institute of Japan
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