应用高等分析理论分析人字形电力构架  

Application of Advanced Analysis Theory in Character Shaped Power-transmission Frames

作　　者：李天[1] 袁征[1] 郑德乾[1] 马哲芳[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2006年第1期15-18,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家"十五"科技攻关资助项目(2002BA806B)

摘　　要：应用有限元分析软件,实现了对一人字形变电构架的高等分析,论述了高等分析的过程.通过对高等分析和传统一阶弹性分析的计算结果的分析对比,初步讨论了传统一阶弹性计算中的缺陷,以及对人字形电力构架进行高等分析中几个主要因素对结果的影响.计算结果表明:几何非线性对于人字形结构影响比较大;在用高等分析选取杆件单元时,应充分考虑较大轴力的杆件单元;二阶效应对内力的影响由下向上逐渐减少.Finite element analysis software is used to realize the advanced analysis of character shaped power-transmission frame. And the process of advanced analysis is briefly discussed in this paper. The results based on advanced analysis and the first order elasticity analysis are compared, and by contrast, the shortcomings of the first order elasticity analysis are discussed primarily. And the influence on the result of the main factors in the advanced analysis for character shaped power-transmission frame is discussed.

关 键 词：高等分析 电力构架 一阶弹性分析 初始缺陷 二阶弹塑性分析 

分 类 号：TU323.1[建筑科学—结构工程]