Control force characteristics of different control strategies for the wind-excited 76-story benchmark building structure

In accordance with the International Association of Structural Control and Monitoring (IASCM) third generation Vibration Control Benchmark problem, two new control strategies: structural adjacent reaction wall control (STA) and mass-semi-active-damper (AMD-2), are proposed and systematically evaluated and compared with the Benchmark standard-extended active control solutions as well as with the structural interbedded (STI) control strategy. A set of innovative evaluation indices, denoting the direction and energy relations between control forces and its velocity and/or displacement, is proposed to study the phenomena behavior as well as intrinsic mechanism of active control force of each control strategy. Throughout the comparisons among different control strategies, the function of inertia mass of Active Mass Driver/Damper (AMD) system is discussed. The AMD-2 control strategy has been developed based on a comprehensive analysis of STA control strategy, and both strategies are thoroughly evaluated against relevant Benchmark results. Based on a force mechanism and inertia mass ratio impact analysis, the AMD-2 control is shown to be capable of achieving comparable performance at a lower cost but with additional attractive advantages. Furthermore, an improved understanding phenomena behavior as well as the intrinsic mechanism of active control force corresponding to each control strategy realized by different control systems may contribute to selection of suitable control systems for application considerations.