计算模型的选取是进行输电铁塔结构分析的首要任务之一。通过建立桁架模型、梁-桁架混合模型和刚架模型，分别对某角钢塔和钢管塔进行建模分析，得出输电塔在常见大风工况下的受力及位移状态。结果表明：对于角钢塔，采用桁架单元能够满足设计分析要求；对于钢管塔，使用梁单元建模分析能获得更加合理的计算结果。

One of most important things before the structural analysis is choosing the right calculation model. In order to find out the behavior of the transmission tower in different wind conditions, an angle steel tower and tube tower were analyzed with truss model, beam-truss model and rigid model. The results showed that using truss model can meet design specification in angle steel tower. However, the results indicated that it’s much more reasonable to use beam model than the truss model in tube tower.