汽轮机弹簧支承隔振基础是理想的低调频基础 ,它不受下部支承结构的影响 ,可以自由地选择系统的自振频率 ,其基频可以降到 3Hz及以下 ,它消除了机器支承结构和下部支承结构之间的动力耦合作用 ,具有良好的动力和抗震性能。根据实践 ,对其作了较详细的分析 ,包括隔振器的选择、布置、安装 ,凝汽器支承方式对弹簧基础的影响 ,以及弹簧支承系统抗震等问题。 The foundation of the turbine spring-loaded vibration isolator is an ideal low-frequency base, free from the influence of the lower support structure and free to choose the natural frequency of the system whose fundamental frequency can be reduced to 3 Hz and below, eliminating the machine support structure and lower part Supporting structure between the dynamic coupling, with good power and seismic performance. According to the practice, it is analyzed in detail, including the selection, arrangement and installation of vibration isolator, the influence of condenser support on the foundation of the spring, and the earthquake resistance of the spring support system.