Vibration control of a tall building subjected to earthquake excitation

The purpose of this paper is to develop two kinds of controllers: (1) the variable structure control (VSC) and (2) the fuzzy sliding mode control (FSMC), for the building with an active-tuned-mass damper (ATMD) structural control system. It is desired that the controlled system remain stable and effective when the building is subjected to from earthquake excitation. From simulation results, it is found that (1) the VSC and the FSMC methods successfully control vibrations of the building system under earthquake-induced excitation, (2) the FSMC method is more economical and practical than the VSC due to the smaller controlling force and associated control energy required.