风流影响下船撞桥概率密度分布研究
首发时间:2010-04-16
摘要:目前船撞桥问题在国内深受关注,随着桥墩跨越江河的宽度越来越大,船舶撞击的桥墩的概率也随之增大。90年代初美国AASHTO模型提出了船撞桥概率密度分布为正态分布,并且规定航道中心线为正态分布的中值位置。本文在此基础上,通过分析风流影响,建立风流漂移量模型,对该几何概率进行修正,重点讨论中值位置的问题,以便船舶安全驾驶以及为桥墩防撞设计等提供技术支撑。
For information in English, please click here
Study on probability density distribution of ship impact against bridge after the influence of wind and water flow
Abstract:Now, the problem of ship impact against bridge is concerned at home and abroad. With the width of bridge through the river getting bigger, ship impact against bridge is getting more probable. At the beginning of 90s, probability density distribution of ship impact against bridge, put forward by American AASHTO model, is normal distribution. And it set the center of the channel as the midpoint of the normal distribution. Based on this, through analyzing the influence of wind and flow and modeling drift of wind and flow, the article corrects this model and discuss the midpoint with an emphasis, to navigate safely and provide back-up technology for anti-collision design of bridge pier.
Keywords: ship impact against bridge drift normal distribution
基金:
论文图表:
引用
No.4197652477312713****
同行评议
共计0人参与
勘误表
风流影响下船撞桥概率密度分布研究
评论
全部评论0/1000