输电线路塔脚主板不同焊接工艺方案对比分析

Comparative Analysis of Different Welding Processes for Transmission Tower Foot Main Board

运用ANSYS建立了输电线路塔脚的有限元模型,提取塔脚主板中心底部到顶端的一条路径上两种不同焊接工艺方案焊接传热的最终应力与变形,并通过低温实验进行了对比分析。结果表明,采用相对焊缝多层焊道来回交替施焊的方式可以减小塔脚结构的焊接变形与应力,在低温气候环境下具有更好的适应性。研究结果可以为焊接工艺优化和塔脚施工提供理论基础与实践指导。

The finite element model of tower foot of transmission line is established using ANSYS,and the final stress and deformation of the welding heat transfer of two different welding processes are extracted from the bottom to the center base top of the tower and compared by low temperature experiment.The results show that the alternate welding of the multi-layer weld bead can reduce the welding deformation and stress of the tower foot structure,and has better adaptability in low temperature climate.The research results can provide theoretical basis and practical guidance for welding process optimization and tower foot construction.