Vibration Reduction of Wind Loads using a Tuned Liquid Damper

DOI

10.2991/emcs-16.2016.268How to use a DOI?

Keywords

Wind load; Vibration table; High-rise; Excitation direction

Abstract

Extensive study has taken place concerning the reduction of wind-induced vibrations in tall buildings. One method to mitigate this effect adds an auxiliary damping device to the building to increasing the damping ratio of the primary structure, that reducing wind-induced vibration. In the present study, passive tuned liquid damper(TLD) installed on top of an aeroelastic building model which had a different side ratio of 2 and an aspect ratio of 8, was tested in a wind tunnel. The boundary layer flow representing a suburban area was simulated. Wind direction to the small face of the building model was normal, and the root-mean square (RMS) across-wind displacements at the top of the building model, caused mainly by motion-induced vortex, were measured and showed a reduction in the effect of motion-induced vortex excitations of tall building. Nine TLDs, with have a mass ratio of 1–2% and frequency ratio of 0.95–1.05 were used for the experiment. The test results showed that maximum TLD effects for the reduction of vortex-induced excitations occur at a mass ratio of 2% and a frequency ratio of 1%.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Sun-Young Paek
AU  - Ki-Pyo You
AU  - Byung-Hee Nam
AU  - Young-Moon Kim
PY  - 2016/01
DA  - 2016/01
TI  - Vibration Reduction of Wind Loads using a Tuned Liquid Damper
BT  - Proceedings of the 2016 International Conference on Education, Management, Computer and Society
PB  - Atlantis Press
SP  - 1092
EP  - 1095
SN  - 2352-538X
UR  - https://doi.org/10.2991/emcs-16.2016.268
DO  - 10.2991/emcs-16.2016.268
ID  - Paek2016/01
ER  -