構造物被害に及ぼす風速変動特性の影響

概要

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It is known that the spread of structural damage is more strongly affected by gust speeds thanby maximum wind speeds. The authors have focused on the duration and fluctuation of windgusts. The results of damage analysis based on the effects of Typhoon Bart in 1999 haveindicated that the spread of damage has a higher correlation to the standard deviation of thewind gusts rather than to the intensity of turbulence. Comparisons of the time evolutions ofwind records at selected observation points have indicated more serious damage at areas withhigher fluctuations of wind speed. Although the above investigation is based on a survey ofthe damage of only one typhoon, it is suggested that fluctuation intensity as well as the durationof high wind speed is a significant factor in the spread of structural damage.
一般社団法人日本風工学会の論文