ABSTRACT
This chapter reviews some existing control device placement methods for passive control systems, active control systems, semi-active control systems and hybrid control systems. It presents a relatively simple increment-based algorithm for the optimal placement of active/passive control devices in a structure. As compared with passive and active control systems, the research on optimal control device placement in semi-active control systems is relatively limited. The chapter examines the suboptimal control gain in terms of both the optimal performance index and the maximum seismic displacement response of the building. The design of control devices involves two aspects: one is to determine the optimal number and placement of control devices in a structure; the other is to find the optimal control law for active/hybrid/semi-active control devices or the optimal damper parameter for passive control devices. Moreover, a great number of researchers have been dedicated to developing various types of control devices and improving the efficiency of the associated control systems.
