水电站进水塔结构分析方案研究

Research on the Structural Analysis Program of Hydropower Station Intake Tower

水电站进水塔结构的安全直接关系到整个电站的安全和效益。采用三维有限元法分别建立了实体单元模型和梁单元与实体单元混合模型,开展了静、动力分析研究,对两种模型的计算结果进行了对比。结果表明,水电站进水塔采用两种模型计算的结果呈现出相同的规律。水电站进水塔结构分析可采用以实体单元模拟的成果作为结构分析的基础,在前部拦污栅框架部分的内力分析和配筋计算上以梁系与实体联合模拟的成果作为有效补充,为工程设计提供更为科学合理的参考依据。

The safety of intake tower of the hydropower station is very important in the security and benefit of the entire hydropower station .The structural analysis model used by brick elements and the model used by brick and beam element are built for simulating the static and dynamic characteristics by 3D FEM .Then the results of two models are compared .The results of the two models show the same rules .The results of the model used by brick elements of intake towers can function as the basis of structural analysis .To the internal force analysis and reinforcement calculation of the trash rack frame ,the result of the model used by brick elements and beam elements is an effective complement .The results of the above-mentioned structure analysis program can provide more scientific and reasonable reference for engineering design .