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本文主要研究圆柱体外部有水时考虑液面晃动影响的抗震计算。在这之前文献[1]导出了刚性罐内部有水时考虑液面晃动影响的抗震分析公式。文献[3]导出了柔性罐内部有水时考虑液面影响的抗震分析公式。文献[2]导出了液面晃动影响内、外部均有水时柔性罐的自振特性计算公式。它们均没有对圆柱罐外部有水,并且考虑液面晃动影响的情况进行抗震分析。鉴于目前海上采油事业的迅速发展,作者觉得必须对水中结构的抗震研究给予足够的重
In this paper, we mainly study the aseismic calculation considering the influence of liquid surface shaking when water is outside the cylinder. Previously, [1] derived the seismic analysis formula that takes into account the effects of surface sloshing when there is water inside a rigid tank. Literature [3] derived the seismic analysis formula considering the influence of liquid surface when there is water inside the flexible tank. Reference [2] derived the formula for calculating the natural vibration of a flexible tank when the sloshing affects both the inside and the outside. None of them provided water to the outside of the cylindrical tank and subjected to seismic analysis taking into account the effects of liquid surface sloshing. In view of the rapid development of offshore oil production at present, the authors think it necessary to give sufficient weight to the seismic study of underwater structures