5·12 汶川大地震的震害资料表明，目前各级变电站主控楼等建（构）筑物的抗震能力较为薄弱，对位于地震频发区域的枢纽变电站采用隔震技术对提高主控楼的抗震能力很有必要。根据330 kV 临江变电站主控楼的结构特点，开展了主控楼隔震层的隔震支座选型与布置设计，并对主控楼隔震设计进行了有限元分析与验算。分析表明，合理采用隔震技术可有效降低主控楼的地震响应，达到了预期的设计目标。

The damage data of the May 12th Wenchuan Earthquake show that the anti-seismic capacity of such structures as the main control buildings of various-level substations is poor. It is therefore essential to adopt the seismic isolation technology to improve the anti-seismic capacities of the main control buildings of the key substations situated in earthquake-prone areas. According to the structural characteristics of the main control building of the Linjiang 330 kV substation, the seismic-isolation bearing is selected and layout design is conducted for the seismic-isolation layer of the main control building, and the seismic-isolation design is analyzed and checked by FEM. It is concluded that seismic isolation technology can effectively reduce the earthquake response of the main control buildings and the expected objectives of the seismic-isolation design are achieved.