基于构造节点模型的输电铁塔有限元分析  

Finite Element Analysis of Transmission Tower Based on Structural Joint Modeling

作　　者：孟遂民[1] 柏才行[2] 何娇娇[3] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]国网青海省电力公司检修公司,西宁810000 [3]青海海东供电公司,青海海东810600

出　　处：《三峡大学学报（自然科学版）》2016年第4期71-75,共5页Journal of China Three Gorges University：Natural Sciences

摘　　要：为获得较为理想的输电铁塔建模模型,本文对输电铁塔各种常见螺栓连接节点进行了研究,建立了各种常见螺栓连接节点的简化模型,利用各种构造节点模型来模拟铁塔节点的真实受力情况.文中建立了桁梁模型和考虑构造节点的模型,将其仿真数据与真实实验铁塔进行了比较.结果表明,考虑构造节点的模型的误差明显小些,铁塔主材处两模型的误差值相对变化较小,在斜材、辅材等处,考虑了构造节点的模型比桁梁模型相对于真塔实验值的误差总体明显减小.在一些特殊试验点,误差减小幅度很大,这充分说明了构造节点对铁塔的影响不可忽视,也说明了构造节点模型在铁塔建模中的有效性.In order to obtain a better transmission tower model, a variety of transmission tower bolt connec- tion nodes has been researched. And sorts of different bolt joints models are built. Struetural joint models are used to simulate the real stress of tower bolt joints. A model considering the struetural joints and a truss beam model are built. Their simulation data are compared with the real experimental tower. Results show that the former model is better than the latter one. The former has less errors. The main material＇s error is not very big between two models. But to the sway rods and the auxiliary materials of the tower, the formers error is obviously smaller than the other one. And there is great error in some special test points. It is shown that the influence of struetural Joints on the tower can not be ignored and the modling of struetural Joint is useful in transmission tower modeling.

关 键 词：ANSYS 输电铁塔 有限元 构造节点 螺栓连接 

分 类 号：TM726.3[电气工程—电力系统及自动化]