Open AccessAnalysis on Mechanical Properties of Single Conductor Considering Flexural Stiffness under Wind Load
Author(s) -
Xinxin Wang,
Jianpin Zhao,
Puzhi Zhao,
Yu-hui Zheng,
Guoqing Yu
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1300/1/012015
Subject(s) - conductor , stiffness , catenary , materials science , flexural rigidity , tension (geology) , structural engineering , bending moment , bending stiffness , flexural strength , three point flexural test , mechanics , composite material , physics , engineering , ultimate tensile strength
In order to study the effect of flexural stiffness on the mechanical properties of single conductor under wind load, a configuration function of the conductor considering stiffness is established in this paper. Based on the configuration function, the finite element model is established, and the effects of suspension point angle, span on the mechanical properties of down lead conductor under wind load are studied. The results show that, compared with the catenary model, the model in this paper is more consistent with the experimental fitting formula. The angle of the suspension point has obvious influence on the tension of down lead conductor. With the increase of the angle of the suspension point from 0°to 80°, the tension decreases by nearly one third. The bending moment is affected by the alignment, and the reverse sign appears with the increase of suspension point angle. When the redundancy rate is the same, the span increases from 2 m to 4 m, and the tension of the conductor decreases by 18%.