315 減衰特性切り替え型TMDの高層建物への適用例(建築構造物の制御I)(OS 建築構造物の制御)

概要

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This paper described the application of TMD changing the damping capacity to a high-rise building in Osaka, which uses the upper stories as hotel. The TMD has been used a new type of oil-damper. This damper can change the damping capacity by switching of the electromagnetic valve. It is usually set at the optimum damping factor to operate as normal TMD to reduce wind-induced motion of the building. When large earthquakes strike, it automatically switches the valve to high-damping mode to keep the displacement of ice thermal storage tanks, used as moving mass, within the stroke limit. To investigate the vibration control performance when subjected to large earthquake, a parametric study was performed. The study proved that its performance will be improved by utilizing the TMD which has optimum period, optimum damping and larger mass ratio, in case that a large stroke and a large stroke velocity of damper are permitted.
社団法人日本機械学会の論文
2001-04-20