Abstract
The control effectiveness of Tuned Mass Damper (TMD) device is studied in this paper for high-rising building rested on the soft soil, subjected to seismic excitation. Two approaches, random analysis in frequency domain and determinative analysis in time domain, are applied for evaluating the effects of soil-structure interaction (SSI) on the dynamic response of the structure with TMD device. The numerical results in the case studies show that the TMD effectiveness to reduce the seismic behavior of the structure decreases drastically due to the strong interaction between the structure and the soil. So that, the SSI effects should be taken into consideration in dynamic analysis and design of the TMD control of the structures subjected to earthquakes when the soil is soft.
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