弾塑性構造物の風応答性状ならびにその予測に関する研究 : その1 風直角方向振動の場合

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タイトル別名
  • A STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS AND PREDICTION FOR INELASTIC STRUCTURE : Part 1. A case of across-wind vibration
  • ダンソセイ コウゾウブツ ノ カゼオウトウ セイジョウ ナラビニ ソノ ヨソク

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As buildings have become higher, it is likely to find the wind loads that is equal to or even greater than the design seismic loads. Also, response control systems by hysteretic damping of steel have been developed for the aim of the response control or the damage control during seismic excitation. Then the subject that structural members yield under wind loading will become more important on structural design. In this paper, to assure the safety of buildings with the yielding members under wind loading, inelastic response characteristics, e. g. the distributions of the fluctuating displacement, the maximum displacement, the absorbed energy and so on, under across-wind loading are investigated quantitatively through time history response analyses by using a single-degree-of-freedom system. And a stochastic method of estimating the inelastic responses under wind loading so as to be available for the evaluation of fatigue-damage is proposed on the basis of the zero-crossing peak-value distribution. It is confirmed that the predicted inelastic responses almost agree with the results of simulation.

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