Wind tower structure has relatively simple shape compared to other structures, but due to its characteristics, various and irregular environmental loads are applied. These loads cause vibrations at tower, and can cause failure of the structure if over vibration occurs. Vibration occurred at structures is gradually exhausted by damping of the structures, and if high damping is ensured, the failure of the structure due to over vibration can be prevented. In this study, the vibration reduction effects are to be analyzed through FEM analysis by examining the top displacement, bottom moment, and bottom fatigue damage of the structure depending on damping ratio of the wind tower structure.

Recently, because of the increased needs for damped structure, a lot of buildings equipped with damping systems are designed. In this research, in order to reduce the base shear down to the desired, additional damping ratio of damping device for each period was determined with seismic response spectrum

Recently, because of the increased needs for damped structure, a lot of buildings equipped with damping systems are designed. In this research, in order to reduce the base shear down to the desired, additional damping ratio of damping device for each period was determined with seismic response spectrum.