Active vibration control of triple flexible structures arranged in parallel

In this paper we propose an active vibration central method for multiple hi gh-rise buildings arranged in parallel. According to the proposed method, s ome flexible buildings connected by control devices called "active control bridges", are controlled through active interactions among them. This metho d has I-he merit of achieving sufficient control force under low frequency. Using this method, it is possible to control vibrations of super-tall buil dings against strong winds and large earthquakes. In this study, three mode l buildings are connected with two actuators. The objective of this researc h is to control the first bending and torsional modes of each building usin g this method. The control effect is evaluated by exciting the base of the structures by time response and measuring the frequency response of the str uctures. Both simulation and; experimental results show that fairly good co ntrol performance has been achieved by this method.