Conventional tuned liquid dampers (TLD) are commonly used for vibration control in buildings with a fundament period of more than 0.8 s. The application of the TLDs for low-rise buildings poses difficulty in finding practically feasible lengths for tuning. This study proposes a new implementation by connecting TLD with the structures using a flexible interface. The property of the flexible interface is so chosen that the whole damper system, including container and liquid mass, can be tuned with a fundamental period of the structure. A numerical optimization investigation is being conducted to evaluate the optimal parameters of the flexible interface and TLD. Additionally, a time history analysis evaluates structural performance using optimal parameters derived from the parametric analysis and a series of ground motions as the excitation force. The control efficiency obtained by the proposed system is obtained by performing a time history analysis. The recorded earthquake excitations are chosen from the SAC earthquake records. The proposed damper system significantly suppresses the structural response. Hence, the proposed system effectively controls the short-period structure’s vibration.

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A New Implementation in a Tuned Liquid Damper to Mitigate the Vibration of Low-Rise Buildings

  • Dhirendra Kumar Pandey,
  • Trishna Choudhury

摘要

Conventional tuned liquid dampers (TLD) are commonly used for vibration control in buildings with a fundament period of more than 0.8 s. The application of the TLDs for low-rise buildings poses difficulty in finding practically feasible lengths for tuning. This study proposes a new implementation by connecting TLD with the structures using a flexible interface. The property of the flexible interface is so chosen that the whole damper system, including container and liquid mass, can be tuned with a fundamental period of the structure. A numerical optimization investigation is being conducted to evaluate the optimal parameters of the flexible interface and TLD. Additionally, a time history analysis evaluates structural performance using optimal parameters derived from the parametric analysis and a series of ground motions as the excitation force. The control efficiency obtained by the proposed system is obtained by performing a time history analysis. The recorded earthquake excitations are chosen from the SAC earthquake records. The proposed damper system significantly suppresses the structural response. Hence, the proposed system effectively controls the short-period structure’s vibration.