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Author(s):	Nishimura, Akira; Yamamoto, Hiroshi; Kimura, Yasuhiko; Kimura, Hideki; Yamamoto, Masashi; Kushibe, Atsumichi
Title:	Base-isolated super high-rise RC building composed of three connected towers with vibration control systems
Abstract:	The Island Tower Sky Club is a super high-rise RC apartment block constructed in Fukuoka City, Japan, which makes inventive use of the most advanced building technologies. The building is 145 m tall with 42 storeys. It is composed of three similar, slender towers with three-fold rotational symmetry. The towers are connected at three different levels by aerial gardens and contain various vibration control devices to assure a high level of safety. The aerial gardens are connected to the towers by vibration control dampers to reduce the overturning effects of the towers caused by seasonal winds and large earthquakes. An elaborate control system can reduce the storey acceleration response by 30 %. At the upper two storeys of each tower, super-plastic zincaluminium alloy dampers are also used. To reduce the storey acceleration response, the base of the building is isolated using a hybrid system of bearing supports and dampers. The validity of the control system implemented is confirmed by human power vibration tests conducted at the aerial gardens.
Source:	Structural Concrete 12 (2011), No. 2
Page/s:	94-108
Language of Publication:	English

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