發(fā)布時間：2018-03-09 12:41

  本文選題：橋梁工程　切入點：風(fēng)浪聯(lián)合概率模型　出處：《公路交通科技》2016年01期 　論文類型：期刊論文

【摘要】：為了研究作用于海上結(jié)構(gòu)的主要極端作用,以短期測波資料為基礎(chǔ),將對海浪形成發(fā)展有重要影響的風(fēng)速與波高、周期有機(jī)結(jié)合起來,推導(dǎo)出給定風(fēng)速條件下的波高、周期聯(lián)合概率分布模型,對波高、風(fēng)速相關(guān)系數(shù)進(jìn)行參數(shù)分析。將給定風(fēng)速條件下N年最大波高作為濾過復(fù)合Poisson過程考慮,推導(dǎo)了其超值累積分布,進(jìn)而反推臺風(fēng)時相應(yīng)重現(xiàn)期下的年最大波高眾值及相應(yīng)特征周期,得出了基于臺風(fēng)環(huán)境的設(shè)計波浪要素。結(jié)果表明:推導(dǎo)模型從概率學(xué)角度建立了風(fēng)、浪設(shè)計因素的對應(yīng)關(guān)系,簡化了傳統(tǒng)設(shè)計參數(shù)的計算。
[Abstract]:In order to study the main extreme effects acting on offshore structures, based on short-term wave data, wind speed and wave height, which have important influence on wave formation and development, are combined organically and the wave height under given wind speed is deduced. The periodic joint probability distribution model is used to analyze the wave height and the correlation coefficient of wind speed. The maximum wave height of N year under given wind speed is taken into account as a filter composite Poisson process, and the cumulative over value distribution is derived. Then the maximum annual wave height and the corresponding characteristic period of the corresponding recurrence period are derived, and the design wave elements based on the typhoon environment are obtained. The results show that the corresponding relationship between wind and wave design factors is established from the point of view of probability. The calculation of traditional design parameters is simplified.
【作者單位】： 同濟(jì)大學(xué)土木工程學(xué)院;招商局重慶交通科研設(shè)計院有限公司;
【基金】：國家科技支撐計劃項目(2014BAB16B05)
【分類號】：P752

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