基于准定常理论以及Davenport谱计算1 000 kV三跨变电构架风振系数，并与按照规范方法计算得到的风振系数进行比较。计算结果表明：1 000 kV三跨变电构架风振系数较单塔有不同程度的增大；根据规范所得风振系数总体来说对于边塔偏于保守，而对于中塔偏于危险。计算结果在工程设计中需要引起注意。

Base on quasi-steady theory and Davenport spectrum, wind vibration coefficients of 1 000 kV three-span trussed frame are calculated, which is compared with that calculated by the standard method. It is shown that the wind vibration coefficient of 1 000 kV three-span trussed frame are higher than that of single tower, which calculated by standard method are conservative for edge tower and dangerous for middle tower. The results obtained in the paper need to be given attention to in engineering design.