在输电线路铁塔结构设计中,多数杆件是以其在某种荷载工况下的稳定性作为控制条件的。目前国内外大部分铁塔都是由等边角钢组成,而角钢压杆的失稳一般不外乎两种形式:平行轴屈曲或最小轴屈曲。多年来,铁塔的设计和研究大都是在不断地探索和处 In the structural design of transmission line towers, most of the poles are based on their stability under certain load conditions as a control condition. At present, most of the iron towers at home and abroad are composed of equilateral angle steels, and the instability of the angle steel pressure bars is generally no more than two forms: parallel axis buckling or minimum axis buckling. Over the years, the design and research of the tower have been constantly exploring and