Experimental and Numerical Investigation of the Mitigation of Structural Vibrations Caused by Ground Acceleration with TLCD Application

Abstract

In this study, the application of a Tuned Liquid Column Damper (TLCD) for the mitigation of vibrations in buildings were numerically and experimentally investigated. For this purpose, a frequency-matched signle story model of a structure of an 8-story building and a corresponding TLCD model were designed and manufactured. The stiffness coefficient was determined through the free vibration tests. The structure with and without TLCD were subjected to free and harmonic vibrations in the 0-1 Hz frequency range using a six-degree-of-freedom shaking table. For numerical analysis, the nonlinear mathematical model of the system was established and solved using the 4th-order Runge-Kutta method. The accuracy of the mathematical model was demonstrated by comparing the experimental and numerical results. The analyses revealed that the application of TLCD is effective in reducing structural vibrations. © 2023 IEEE.