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Advances in Materials Science and Engineering
Volume 2016, Article ID 1898792, 9 pages
Research Article

Investigation of the Performance of Two Passive Controllers in Mitigating the Rotational Response of Irregular Buildings

Department of Civil and Environmental Engineering, Kunsan National University, Jeonbuk, Republic of Korea

Received 9 May 2016; Revised 21 September 2016; Accepted 22 September 2016

Academic Editor: Luigi Nicolais

Copyright © 2016 Yasser Bigdeli and Dookie Kim. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Two passive vibration control devices (i.e., circle type tuned liquid damper (C-TLD) and a circle type tuned liquid column damper (C-TLCD)) were experimentally investigated for their performance when attached to the irregular building structure subjected to dynamic loads. The specific directions where the maximum response of the structure is expected were experimentally identified for x- and y-directions as well as for rotational direction. The power spectral density (PSD) was computed for the response of the structure based on the frequency of the first three modes and also water level changes in the device container by using fast Fourier transform (FFT). The performances of these two controllers regarding suppressing the structural vibration were compared for the seismic loads applied in an experimentally identified critical direction. The results show that these systems are effective in terms of mitigating the coupled lateral and torsional vibrations of a scaled three-story irregular model.