对于1 000 kV特高压双回输电线路钢管塔，横担的实际受力情况与传统采用杆单元模型设计计算的结果存在较大的偏差。利用ANSYS数值模拟方法，分别采用杆单元模型和梁单元模型对特高压钢管塔横担布材形式进行计算分析，结合计算结果对特高压钢管塔横担布材及设计提出了合理建议。

For the steel tube tower applied in 1 000 kV UHV AC double-circuit transmission line, there were larger deviations between theory and practice calculated results of cross arms stress condition. Based on the ANSYS numerical simulation method, this paper analyzed the structure of cross arm for UHV steel tube tower by using bar and beam element model. Finally, the suggestions were proposed for the structure and design of cross arms, according to the calculated results.