A PROBABILITY STATISTICAL PREDICTION MODEL FOR WIND-INDUCED RAINFLOW RANGE OF AN ELASTIC STRUCTURE

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  • YOSHIE Keisuke
    Dept. of Architecture and Building Engineering, Kanagawa University

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  • 変動風力を受ける弾性構造物のレインフロー振幅の確率分布モデル

Abstract

<p>This paper proposes a probability density function model of wind-induced ”rainflow range” in elastic structures for evaluating fatigue damage without time-history response analysis and shows the analytical derivation of the model and its validity using time history response analysis. The proposed model is applicable for not only wind-induced narrow-band responses but also broadband responses. The wind-induced fatigue of elastic structures has been studied based on narrow-band vibration following Rayleigh distribution. However, the number of buildings with vibration-damping system or seismic isolation structures which have large damping increased, and a method for evaluating ”rainflow range” of wide-band vibration is needed.</p>

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