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本文对美国工程师协会的格状输电塔结构设计规定和欧盟的架空线路设计标准有关交叉斜材失稳的计算长度进行了分析,并验证了部分结论,也对我国现行的电力行业《架空送电线路杆塔结构设计技术规定》有关这方面的内容进行了探讨。最后提出了受拉杆件内力的变化对受压杆件计算长度影响的一些新的观点,并发现一些试验结果与其有较好的吻合度,同时给出失稳杆件长度系数的计算公式,对从事输电塔结构设计的工作者具有一定的参考价值。
In this paper, the length of calculated length of cross-shaped bar destabilization of American Georgia Institute of Technology’s grid transmission tower structure design and the European Union’s overhead line design standards are analyzed. Some conclusions are also validated, and the current “overhead transmission Line tower structure design technology ”on the content of this aspect were discussed. Finally, some new ideas that the influence of the internal force of the tension member on the calculated length of the pressed member are proposed. Some experimental results are found to be in good agreement with each other, and the formulas for calculating the length coefficient of the unstable member are given. The workers engaged in the structural design of transmission towers have certain reference value.