中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 1996, Vol. 15 ›› Issue (3): 1-4,10.

• •    下一篇

洪水期间板桥桥面水流阻力的计算

杨斌1, 郑银功1, 吴珷1, 肖盛燮2   

  1. 1. 重庆交通学院高坝通航研究所, 630074;
    2. 重庆交通学院桥梁结构工程系, 630074
  • 收稿日期:1998-03-29 出版日期:1996-06-24 发布日期:2016-11-10
  • 作者简介:杨斌,男,32岁,工程师。
  • 基金资助:
    国家自然科学基金

Calculation of Stream Drag of the Flatbridge's Surface during the Flood

Yang Bin1, Zheng Yingong1, Wu Wu1, Xiao Shengxie2   

  1. 1. Institute of High-head Navignhon Structure;
    2. Departement of Bridge & Structure Engineering
  • Received:1998-03-29 Online:1996-06-24 Published:2016-11-10

摘要: 笔者利用平面壁流的摩擦阻力计算公式及二维矩形柱体形状阻力(亦称压差阻力)的计算方法导出了洪水期间板桥桥面水流阻力的计算公式;讨论了水流阻力脉动的随机特性及其数字统计特征:得到了洪水期间板桥桥面水流阻力的瞬时最大值.

关键词: 板桥桥面, 水流阻力, 脉动, 正态分布

Abstract: In this paper, calculation equation of stream drag of the flat bridge's surface during the flood is derived by friction drag calcularion equation of plane wall flow and shape drag calculation method of 2-dimensions rectangle cylinder, ran don characteristic and numeral stativstics feature of stream drag are discussed, and instantaneous maxium value of strearn drag of the flat bridge's surface is got.

Key words: the flatbridge's surface, stream drag, fluctuanty, normal distribution