doi:10.3850/978-981-08-7920-4_S2-S28-cd

ABSTRACT

In this study, the control performance of an STMD for mitigating the wind-induced structural response of a full-scale 76-story benchmark building has been investigated. A fuzzy supervisory control technique has been proposed to control the STMD. A magnetorheological (MR) damper was used for the STMD. Across wind load data obtained from wind tunnel tests were used as excitation in the numerical simulation. The proposed control technique employed a hierarchical structure consisting of twolower-level semi-active controllers (sub-controllers) and a higher-level fuzzy supervisory controller. Skyhook and groundhook control algorithms were used as subcontrollers. When a wind load is applied to the benchmark building, each sub-controller provides different control commands for the STMD. These control commands are appropriately combined by the fuzzy supervisory controller during real-time control. Results fromnumerical simulations demonstrate that the proposed fuzzy supervisory control technique can effectively reduce the STMDmotion as well as building responses compared to the several comparative controllers. In addition, it is shown that the control performance of the STMD is superior to that of the sample TMDand comparable to an active TMD, butwith a significant reduction in power consumption.

Keywords: Fuzzy logic controller, Supervisory control, Semi-active tunedmass damper, Skyhook, Groundhook, Tall building.

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