鉴于进水塔结构在地震作用下的安全性关系到整个电站的安全和效益,以缅甸高震区某进水塔结构为例,采用振型分解反应谱法计算分析了进水塔结构的自振特性、动位移、动应力,并将静动力计算结果进行了叠加,评估了进水塔结构抗震性能,在此基础上分析了结构抗滑、抗倾覆稳定性。结果表明,该进水塔结构的变形、强度及稳定性均能满足要求,可为工程设计提供参考依据。 In view of the safety of intake tower structure under earthquake, which is related to the safety and benefit of the whole power plant, taking an intake tower structure in high seismicity area of ​​Myanmar as an example, the structure of inlet tower is analyzed by mode decomposition decomposition response spectrum method Vibration characteristics, dynamic displacement and dynamic stress. The static and dynamic calculation results are superposed to evaluate the seismic performance of the inlet tower. On the basis of this, the stability of the structure against skidding and overturning is analyzed. The results show that the deformation, strength and stability of the inlet tower can meet the requirements and provide a reference for engineering design.