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Title
Japanese:間柱型粘弾性ダンパーを組み込んだ超高層建物の長周期地震動に対する応答性状および性能評価実験 
English:RESPONSE CHARACTERISTICS OF HIGH-RISE BUILDINGS WITH STUD-TYPE VISCOELASTIC DAMPERS AGAINST LONG-PERIOD GROUND MOTIONS, AND PERFORMANCE EVALUATION TESTS 
Author
Japanese: 太木本仁志, 佐藤大樹, 戸張涼太, 安永隼平, 植木卓也.  
English: Hitoshi Takimoto, Daiki Sato, Ryota Tobari, Jumpei Yasunaga, Takuya Ueki.  
Language Japanese 
Journal/Book name
Japanese:構造工学論文集 
English:Journal of Structural Engineering 
Volume, Number, Page Vol. 66B        pp. 345-352
Published date Mar. 2020 
Publisher
Japanese:日本建築学会 
English:Architectural Institute of Japan 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
File
Abstract Research interest on structural vibrations induced by long-period ground motion has increased in recent years. When exposed to long-period ground motion, high-rise buildings with long natural periods tend to oscillate continuously for a long time. Accordingly, the use of passive control devices supplements the structural damping thereby mitigating the vibration of high-rise buildings. Among the types of passive control devices, a stud-type viscoelastic (VE) damper holds an advantage in space utilization, and it can handle small to large earthquakes. However, there is a general concern that the characteristics of viscoelastic dampers decrease due to repeated oscillations caused by long-period ground motion. The authors address this matter by investigating experimentally and analytically the properties of stud-type VE dampers employed to a high-rise building subjected to long-period ground motion. The random damper deformation waveform was first determined from the analysis of the building subjected to earthquake, and its equivalent-sinusoidal deformation waveform was then calculated and verified through experiment. Using the equivalent-sinusoidal waveform, proposed parameters defining the VE damper performance were calculated.

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