Active Control of Cross Wind Response of 76-Story Tall Building Using a Fuzzy Controller

This paper focuses on the benchmark problem application regarding the vibration control of tall buildings under cross wind excitation. The building under consideration is the 76-story, 306-m tall reinforced concrete office tower proposed for the city of Melbourne, Australia. The adopted control scheme consists of an active tuned mass damper ATMD where the control action is achieved by a fuzzy logic controller FLC . The main advantage of the FLC is its inherent robustness and ability to handle any nonlinear behavior of the structure and the fact that its implementation does not require a mathematical model of the structure. This benchmark study is based on specified design constraints for the ATMD to be considered in the design of the proposed control scheme. The performance of the controller has been demonstrated through the uncertainty in stiffness 15 and 15% variation from initial stiffness of the building. The results of the simulation show a good performance by the fuzzy controller for all cases tested. Also the results show that the fuzzy controller performance is similar to the linear quadratic Gaussian LQG controller, while possessing several advantages over the LQG controller. DOI: 10.1061/ ASCE 0733-9399 2004 130:4 492 CE Database subject headings: Active control; Wind forces; Fuzzy sets; Buildings, high-rise; Vibration control; Damping.