本文建立了特高压输电塔线体系四线三塔的有限元模型,考虑了材料和几何非线性,采用增量动力分析方法对整个输电塔线体系进行抗风性能分析。对输电塔单塔和塔线体系进行了从弹性、非线性直至倒塌的全过程的性能分析,获得了输电塔单塔和输电塔线体系的抗风性能曲线。通过输电塔单塔和塔线体系的对比分析可知,导线对输电塔抗风性能的影响很大,在设计中不能忽略。 In this paper, the finite element model of the four-wire and three-tower of UHV transmission line system is established. Considering the material and geometrical nonlinearity, the incremental wind power analysis method is used to analyze the wind-resistance performance of the entire transmission tower system. The performance analysis of the single-tower and tower-line system of transmission tower from the elastic to the non-linear to the collapsed is carried out, and the wind-resistance performance curves of single tower and transmission tower of transmission tower are obtained. According to the comparative analysis of single-tower and tower-line system of transmission tower, the influence of conductor on the wind-resistance performance of transmission tower is very large and can not be neglected in the design.