单柱椭圆形钢管杆在输电线路中的应用

Application of Single-column Elliptic Steel-tube Pole in Transmission Lines

单柱椭圆形钢管杆 ,杆顶为避雷线接点 ,横担对称布置在单柱钢管两侧上 ,有导线挂点 ,单柱钢杆的横截面为椭圆形 ,横担方向与单柱钢杆的横截面椭圆长轴成 0°～ 90°角。杆在输电线路中始终保持截面椭圆长轴与最大受力弯距方向一致 ,在同等受力条件下可节约原材料 19% ,降低产品成本 。

For the single-column elliptic steel-tube pole its top is the joint of ground wire, the cross arm is placed symmetrically on both sides of the pole where the conductors are suspended. The cross section of the pole is elliptic and the elliptic longitudinal axle of the arm direction to the pole section is 0~90°. The sectional elliptic longitudinal axle for the pole in the transmission line is always consistent to the direction of the maximum forced applied moment. Therefore, under the same forced applied conditions the raw material can be saved by 19%, which reduces the product cost and the shape of the pole can beauty the city.[