【摘要】 根据泸定水电站岸塔式进水塔的结构特点,建立了进水塔结构—水体—地基的三维动力有限元附加质量模型。分析了进水塔结构在施工完建期空库工况和正常蓄水位工况下分别与水平向、三向地震作用叠加的动力特性,确定了可能引起结构破坏的最不利位置。计算结果表明,水平向地震作用对结构应力应变影响较大,竖向地震作用的影响较小。更多还原

【Abstract】 A three-dimensional dynamic finite element added mass model was established for the bank intake tower of Luding Hydropower Station after considering the intake structure,water and foundation.On the conditions of no water storage and normal storage,the dynamic characteristics of intake tower under horizontal and three-directional seismic action were separately analyzed for determining the possible structural damage in the most disadvantageous position.The results show that the horizontal seismic action has a greater impact and the vertical seismic action has a less impact on structure stress and strain.更多还原