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极浅水域圆柱形结构的地震动水压力
引用本文:李长升,唐友刚,项总权.极浅水域圆柱形结构的地震动水压力[J].海洋学报,1998,20(1):123-129.
作者姓名:李长升  唐友刚  项总权
作者单位:天津大学海洋与船舶工程系, 天津300072
摘    要:论述了极浅水域中圆柱形构筑物的地震动水压力,当外部水深或内部储液深度与结构半径之比小于某一数值时,其他震动水压力可近似地用无限长直墙的地震动水压力公式表示.通常情况下水深若小于结构高度的一半时,地震动水压力中的弹性动水压力影响可以忽略.建议使用的地震动水压力简化公式,可为极浅水域中圆柱形结构抗震设计提供参考.

关 键 词:动水压力    人工岛    折算质量    曲率影响系数
收稿时间:1996/5/28 0:00:00
修稿时间:1996/10/28 0:00:00

Earthquake-induced hydrodynamic pressure of cylindrical structure in extreme shallow water
Li Changsheng,Tang Yougang and Xiang Zhongquan.Earthquake-induced hydrodynamic pressure of cylindrical structure in extreme shallow water[J].Acta Oceanologica Sinica (in Chinese),1998,20(1):123-129.
Authors:Li Changsheng  Tang Yougang and Xiang Zhongquan
Institution:Department of Ocean Engineering and Naval Architecture, Tianjin University, Tianjin 300072
Abstract:The hydrodynamic pressure induced by earthquake to the cylindrical structure in extreme shallow water is studied.The earthquake hydrodynamic pressure for the cylindrical structure may approximately be calculated by the chopras formula for the rectilinear wall when the ratio of external water depth to the cylinder radius is smaller than 0.3.The effects of elastically hydrodynamic pressure can be ignored if water depth is smaller than half height of the structure in engineering.The simplified formula for calculating earthquake-induced hydrodynamic to cylindrical structure in extreme shallow water is suggested.
Keywords:Hydrodynamic pressure  artificial island  fictitious apparent mass  coefficient of curvature effects
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