弾塑性ダンパーを有する高層建築物の共振風速近傍での応答挙動に関する風洞実験

概要

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As a building becomes higher and more slender, its natural frequency becomes lower due to the insufficiency of stiffness comparable to the building height. In the case of installation of the hysteretic damper, although the building has a damping performance, the natural frequency tends to shift lower due to large response. Consequently, the velocity of oncoming wind is apt to reach the critical range for the onset of vortex-induced oscillations. In order to realize detailed investigation by the wind tunnel technique, we present the experimental device, consisting of a stick model amd a yielding rod for a high-rise building with hystefetic damper. After grasping the fundamental characteristics of dampers, we discuss aero-elasto-plastic behavior of a tall building near resonant region to vortex-induced oscillations.
社団法人日本建築学会の論文
2000-11-30