台风环境下海上结构的设计风浪联合概率模型

发布时间：2018-03-09 12:41

本文选题：桥梁工程　切入点：风浪联合概率模型　出处：《公路交通科技》2016年01期 　论文类型：期刊论文

【摘要】：为了研究作用于海上结构的主要极端作用,以短期测波资料为基础,将对海浪形成发展有重要影响的风速与波高、周期有机结合起来,推导出给定风速条件下的波高、周期联合概率分布模型,对波高、风速相关系数进行参数分析。将给定风速条件下N年最大波高作为滤过复合Poisson过程考虑,推导了其超值累积分布,进而反推台风时相应重现期下的年最大波高众值及相应特征周期,得出了基于台风环境的设计波浪要素。结果表明:推导模型从概率学角度建立了风、浪设计因素的对应关系,简化了传统设计参数的计算。
[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.
【作者单位】：同济大学土木工程学院;招商局重庆交通科研设计院有限公司;
【基金】：国家科技支撑计划项目(2014BAB16B05)
【分类号】：P752

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