猫头型铁塔塔头强度稳定性研究及计算机辅助校核

为了解决在线路设计过程中,作用在待选标准猫头塔塔头实际荷载大于允许荷载,但是超出的比例很小时,该标准塔是否还适用于该线路的问题。利用力学基本理论知识,把猫头塔塔头划分为上下两部分,依据结构对称性,对塔头右侧结构做了受力分析,给出了构件轴力计算模型和强度稳定性校核模型,又基于Visual Basic语言编制了塔头强度稳定性计算机辅助校核软件,能够在给定塔头荷载及结构尺寸情况下,快速完成对塔头强度稳定性的校核工作,给出是否适用的结论。该校核程序既能提高设计效率,又能实现安全、经济之间的均衡。

The Strength Stability and Computer Aided Check for Head of Cat-head Transmission Towers

In order to solve the problem of transmission lines design, when the actual load role in the head of will be selected standard cat-head tower exceeds the allowable load is very small, the standard tower whether applicable to this transmission line. Using mechanical theory knowledge, the head of cat-head tower is divided into two parts, according to the symmetry of the structure, the right structure stress analysis and member axial force and strength check formula are given. Based on the Visual Basic language, the head of tower strength computer aided checking software is established, so in the given tower head loads and structure size, complete the check of tower head strength quickly, and given the conclusion for whether it is applicable. The strength check procedure can improve the design efficiency, but also can realize the balance between safety and economy.