地震観測記録に基づく10層建物のシステム同定と設置したAMDの制御効果

概要

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Active mass dampers (AMDs) have been installed on the top floor in a 10-story building to suppress vibration in both one translational and the torsional directions. The earthquake responses have been recorded on the first basement and the 6th and the 11th floors above the ground. The dynamic properties of the structure are identified by fitting each set of the earthquake observation records to a multi-input-multi-output ARX model. The identified modal values are compared with the vibration test results, and the control effectiveness is evaluated as equivalent damping ratios to the critical values in the vibration modes. The control approximately provides 17-26% and 6-11% of damping ratios with the lowest translational and torsional modes, respectively. The structure-controller model reconfirms the high control effectiveness in the first translational mode.
一般社団法人日本建築学会の論文
2000-03-20