特高压单柱拉线塔主柱扭转刚度实验系统

摘要

At present, the study of the torsional stiffness of the main column is mainly through the theoretical analysis and FEM calculation, but the accuracies of the analysis and calculation are not verified by experiments.Therefore, the experimental system for measuring the torsional stiffness of a main column is designed.The torsional stiffness of the main column model can be obtained by loading the main column model and measuring the torsional angle.The experimental results show that this system for measuring the torsional stiffness of the main column model has the simple measurement principle, and the easy and convenient measurement metho d.Compared with the results of the theoretical calculation and the finite element calculation, the measured results are rather consistent and have higher accuracy and practicability.%目前对主柱扭转刚度的研究主要通过理论分析和有限元计算,分析计算结果的准确性并未进行过实验验证.为此该文设计了一种测量主柱扭转刚度的实验系统,通过在主柱模型施加载荷并测量其发生的扭转角,可得到主柱模型的扭转刚度.实验结果表明:使用该系统测量主柱模型的扭转刚度,测量原理简单,测量方法简便易行;与理论计算、有限元计算结果对比较为吻合,具有较高的准确性与实用性.