矩形平面を有する高層建築物の振動依存風力特性および風直角方向捩れ連成空力不安定振動性状における辺長比の影響

概要

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For wind resistance design of high-rise buildings which have flat shape or closed natural frequency of across-wind and torsion, it is necessary to examine not only unstable aerodynamic vibration of across-wind but also that of torsional and coupled across-wind torsional vibration. However, studies of motion-induced wind force with torsional vibration of three dimensional model are only by authors with side ratio of 2. This study investigates the motion-induced wind forces and unstable aerodynamic vibrations of the rectangular high-rise buildings with side ratio of 1, 2 and 3. Variations of motion-induced wind forces regard with the side ratio are examined by forced vibration wind tunnel tests. Furthermore, the variations of unstable aerodynamic response cased by the side ratio are studied by a wind response analysis using the motion-induced wind forces obtained,by wind tunnel test.
社団法人日本建築学会の論文
2002-10-30