Optimization of TMD parameters for Earthquake Vibrations of Tall Buildings Including Soil Structure Interaction

Abstract

This paper investigates the optimized parameters of Tuned Mass Dampers (TMDs) for highrise<br><br>structures considering Soil Structure Interaction (SSI) effects. Three optimization<br><br>methods, namely the ant colony optimization (ACO) technique together with artificial bee<br><br>colony (ABC) and shuffled complex evolution (SCE) methods are utilized for the<br><br>optimization of TMD Mass, damping coefficient and spring stiffness as the design variables.<br><br>The objective is to decrease the maximum displacement of structure. The 40 story structure<br><br>with three soil types is employed to design TMD for six types of far field earthquakes. The<br><br>results are then utilized to obtain relations for the optimized TMD parameters with SSI<br><br>effects. The relations are then applied to design TMD for the same structure with another<br><br>five types of far field oscillations, and reasonable results are achieved. For further<br><br>investigations, the obtained relations are utilized to design TMD for a new structure, and the<br><br>reduction values are obtained for five types of earthquakes, which show acceptable results.<br><br>This study improves the understanding of earthquake oscillations, and helps the designers to<br><br>achieve the optimized TMD for high-rise buildings.<br><br>Received: