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Title
Japanese:超高層建物の下層階に部分配置する履歴型ダンパーの効果と影響に関する検討－長周期地震動を想定した耐震改修－ 
English:INVESTIGATION ON PARTIAL INSTALL OF HYSTERETIC DAMPERS INTO LOWER STORIES OF HIGH-RISE BUILDINGS - Retrofitting Against Long-Period Ground Motion - 
Author
Japanese: 島田侑, 佐藤大樹, 長江拓也, 北村春幸, 福山國夫, 梶原浩一, 井上貴仁, 中島正愛, 斉藤大樹, 福和伸夫, 日高桃子.  
English: 島田侑, daiki sato, 長江拓也, Haruyuki Kitamura, 福山國夫, Koichi Kajiwara, 井上貴仁, Masayoshi NAKASHIMA, 斉藤大樹, 福和伸夫, 日高桃子.  
Language Japanese 
Journal/Book name
Japanese:日本建築学会構造系論文集 
English:Journal of Structural and Construction Engineering (Transactions of AIJ) 
Volume, Number, Page Vol. 75    No. 649   
Published date Mar. 2010 
Publisher
Japanese:日本建築学会 
English:Architectural Institute of Japan 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
File
Official URL http://ci.nii.ac.jp/naid/40017020619
 
Abstract In long-period ground motions, high-rise buildings are subjected to large cumulative deformations as well as large story drifts. Retrofitting with dampers may be one of the most effective solutions to reduce such seismic responses. This study examines the influences of steel dampers partially installed into the lower part of high-rise buildings. A series of dynamic response analyses are conducted for typical steel high-rise buildings. A long-period ground motion is adopted whose energy spectrum has a peak amplitude at three seconds, and twenty-one story buildings and thirty-five story buildings are substituted by frame models. The results show that the total energy absorption of the dampers installed into forty-percent stories can be equivalent to that of the dampers installed into the whole stories. On the other hand, the maximum drift of the story located right on the lower part having dampers would become 1.4 times larger than those of the lower part.

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