- 摘 要
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蔣濟同，馮有良，劉德輔
(中國海洋大學工程學院，青島266100)[摘要] 首先總結了各國荷載規(guī)范中風荷載規(guī)定的差異，然后對某地26年的實測風速資料進行統(tǒng)計分析，分十六個風向處理數(shù)據，采用Gumbel極值分布模型基于不同樣本進行極值風速預測，參照我國現(xiàn)行風荷載規(guī)范對計算結果進行分析；得到了分方向的極值風速計算結果，與現(xiàn)行規(guī)范的結果對比，說明分方向預測極值風速可以合理降低設防風速，使得工程設計更加經濟合理。
[關鍵詞] 風荷載規(guī)范；風向；極值分布；設防風速Engineering design wind velocity study considering effect of wind direction
Jiang Jitong, Feng Youliang, L/u Defu
(College ofEngineering, Ocean University ofChina, Qingda0 266100, China)Abstract: Main differences in wind load standards of different countries are summarized firstly.Then a statistical analysis was made for the practical measured wind data of 26 years somewhere and the data were processed under sixteen wind directions.Extreme wind velocity was predicted using Gumbel extreme value distribution models based on different samples.The calculated results were analyzed according to the current wind load standards in china,and the extreme wind velocity was obtained for different directions.Upon the comparison with the results from the current code,the proposed solution can reduce the defence wind velocity reasonably,and make the practical design more econonuc and reasonable.
Keywords: wind load standards; wind direction; extreme value distribution; defense wind velocity
