输电钢管杆稳定性分析的阶梯折算法

Solution to Stability Problems of Tubular Transmission Towers by Step-reduction Method

应用一维非均质体结构的阶梯折算法理论,建立了输电钢管杆的数值分析模型,推导了钢管杆的整体稳定计算方法,算法运用计算机易于实现,解决了荷载和刚度沿杆体变化的复杂杆结构整体稳定二阶计算问题,在电网工程建设和设计中有较好的实用价值。

In this paper, the step-reduction method for non-homogeneous linear dimension structures is applied to establish a numerical analysis model for steel tubular transmission towers, and a calculation method for integral stability is thus deduced. This calculation method, easy to implement with a computer, solves the problem of second-order calculation of the integral stability for complicated pole structures with load and rigidity varying along the poles, and it finds wide application in the engineering practice.