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考虑复杂地基及塔内外水体的影响,采用三维有限元法分析了两河口水电站进水塔的静动力强度与刚度,并校核了地震工况下进水塔的整体抗滑、抗倾覆与抗浮性能。同时针对该进水塔的尺寸特点,修正了规范给出的塔外地震动水附加质量计算公式。结果表明,两河口水电站进水塔的结构设计能满足相关规范要求。
Considering the influence of complex foundations and the water bodies inside and outside the tower, the three-dimensional finite element method is used to analyze the static and dynamic strength and stiffness of the inlet towers of Lianghekou hydropower station. The overall anti-skidding, anti-overturning and anti- Floating performance. At the same time, according to the size characteristics of the inlet tower, the formula for calculating the additional mass of water outside the tower is amended. The results show that the structural design of inflow tower of Lianghekou Hydropower Station can meet the relevant specifications.