| Title |
The Characteristic of Tuned Liquid Dampers according to Natural Frequency |
| Authors |
You Ki-Pyo ; You Jang-Youl ; Ko Nag-Ho ; Kim Young-Moon |
| Keywords |
Tuned Liquid Damper ; Shaking Table ; Base Share Force ; Wave Height. Energy Dissipation |
| Abstract |
The present study examined the characteristics of rectangular and circular tuned liquid dampers (TLDs), which are used to control wind-induced vibration in tall buildings, according to natural frequency. For this, we conducted shaking table experiments for four natural frequencies (0.44, 0.55, 0.64 and 0.73Hz). The tuning characteristic of the TLD water tanks was better in circular water tanks than in rectangular water tanks. The damping ratio based on the energy dissipation capacity was affected by the excitation amplitude. At low excitation (below amplitude 5mm) and low natural frequency (0.44Hz), circular water tanks were more advantageous than rectangular water tanks. However, at high excitation (over amplitude 5mm) and high natural frequency (over 0.55Hz), rectangular water tanks were better than circular water tanks. |