Vibration attenuation of a two-storey building using a tuned mass damper and tuned liquid column damper

Abstract

This study proposes a vibration attenuation technique for two-degree of freedom (two DOF) vibration system using Tuned Mass Damper (TMD) and Tuned Liquid Column Damper (TLCD). A model of a two-storey building is utilized to express a two DOF vibration system. The experimental study is conducted to evaluate the performance of TMD and TLCD for attenuating the vibration amplitude of the building. The TMD and TLCD systems were mounted on the building upper floor, and their frequencies were tuned to the first and second vibration modes of the building structure, respectively. The best values for TMD mass and TLCD fluid volume were experimentally determined. The effects due to the TMD mass and TLCD volume variation in the system response were evaluated from the Frequency Response Function (FRF) obtained through modal testing. The experimental results show that a 0.351 kg mass for TMD and 427 mL volume in liquid for TLCD were the most effective at reducing the two-storey building model's vibration response. The experimental study has shown that the appropriate selection of a TMD mass and TLCD fluid volume can significantly reduce the system response.