Finite Element Analysis of Foundation Settlement of 220kv Transmission Tower with Independent Foundation

被引：4
|
作者：
Li, Bo [1 ]
Jian, Mingjian [1 ]
Zhang, Duqing [1 ]
Zhang, Guangcheng [1 ]
机构：
[1] Shandong Elect Power Res Inst, Jinan 250002, Peoples R China
来源：
ADVANCES IN ENGINEERING DESIGN AND OPTIMIZATION III, PTS 1 AND 2 | 2012年 / 201-202卷
关键词：
Goaf area of coal mine; Uneven settlement of tower foundation; Transmission tower-line coupling; Finite element analysis;
D O I：
10.4028/www.scientific.net/AMM.201-202.602
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The uneven subsidence of the independent foundation of the transmission tower often happens in the coal mining area, which causes serious threat to the safe operation of transmission lines. In this paper, the finite element analysis is carried out for a certain 220kV tower-ling coupling system, and the effects of the different kinds of earth deformations on the structure responses are studied. The results show that the contribution of the vertical displacement of the foundation to the variations of the internal forces of the tower is quite small and the resultant stress does not exceed its critical value. However, in the same load conditions, when the distance of root span changed or asymmetry settlement is overexertion, the truss member stress of the cross braces exceeds the yield strength of the materials and occurs yield deformation.
引用
收藏
页码：602 / 607
页数：6
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