Active control of tall buildings against stochastic wind forces

This paper presents the design of active control forces for tall buildings subjected to stochastic wind forces, in order to suppress the vibrations in the building. From the available data on wind speeds, the spectral density function of the wind forces can be evaluated. A filter is designed to simulate the spectrum of the wind forces in order to design the stochastic control forces. A numerical example is given for the active control of a tall building against stochastic wind, using an active tendon mechanism. The possibility of completely suppressing the vibrations in the building using this approach is demonstrated.