履歴塑性変形領域における 1 質点構造物の定常ランダム応答について

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タイトル別名
  • ON STATIONARY RANDOM RESPONSE OF THE ONE MASS BUILDING STRUCTURE IN THE HYSTERETIC PLASTIC DEFORMATION REGION
  • リレキ ソセイ ヘンケイ リョウイキ ニ オケル 1 シツテン コウゾウブツ

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In order to carry out faithfully the aseismic design philosophy of the building structure to the high level earthquake input such as severe or destructive one, it may be very important to discuss general elasto-plastic response natures mainly determined by its nonlinear hysteretic characteristics. So far analytical studies about the nonlinear response to an individual deterministic input, for example El-Centro or Taft earthquake, have been examined but there has been no study to those of more general nature considering erathquake input randomness. Therefore in this paper nonlinear response characteristics of the hysteretic single-degree-of-freedom system to stochastic earthquake type white and non-white noise inputs are examined, choosing such important parameters from aseismic design point of view as the rigidity ratio of the hystretic characteristics, viscous damping independently given of hysteretic damping to the system and the shape of the non-white noise spectrum of stochastic inputs, by making use of the new analytical technique which is developed in this paper, based on the Fokker-Planck equation and the characteristic function.

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