用三维有限单元方法 ,对国外某水电站地下厂房的环梁三立柱式异型机墩及风罩、厂房墙体、楼板梁系统所组成的整体结构进行了动静力分析 ;对厂房内各种振源频率与支承结构固有频率间的耦合共振情况进行了校核 ,结果表明 ,该异型机组支承结构的动静力设计是实际可行的 Using the three-dimensional finite element method, the static and dynamic analysis of the whole structure of ring girder, three-column special-shaped piers and the wind shield, plant wall and floor beam system of underground powerhouse of a hydropower station in foreign countries was carried out. Frequency and the natural frequency of the supporting structure of the coupling resonance were checked, the results show that the special unit of the dynamic and static design of support structure is feasible