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Volume 6, Number 4, December 2013

This paper investigates the optimized parameters of Tuned Mass Dampers (TMDs) for vibration control of high-rise structures including Soil Structure Interaction (SSI). The Artificial Bee Colony (ABC) method is employed for optimization. The TMD Mass, damping coefficient and spring stiffness are assumed as the design variables of the controller; and the objective is set as the reduction of both the maximum displacement and acceleration of the building. The time domain analysis based on Newmark method is employed to obtain the displacement, velocity and acceleration of different stories and TMD in response to 6 types of far field earthquakes. The optimized mass, frequency and damping ratio are then formulated for different soil types; and employed for the design of TMD for the 40 and 15 story buildings and 10 different earthquakes, and well results are achieved. This study leads the researchers to the better understanding and designing of TMDs as passive controllers for the mitigation of earthquake oscillations.

Key Words
Tuned Mass Damper (TMD); Soil-Structure Interaction (SSI); Artificial Bee Colony (ABC); Curve Fitting.

Anooshiravan Farshidianfarand Saeed Soheili: Department of Mechanical Engineering, Ferdowsi University of Mashhad, Vakilabad Blvd., Mashhad, Iran

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