220kV马坝-柳村架空线路设计

论文总字数：34565字

摘 要

本设计主要讲述架空输电线路设计的内容，设计中的步骤按照任务书中的工作内容来进行。此次设计包括导线、地线的应力、弧垂，并且绘制应力弧垂曲线。选择杆塔型式包括直线杆塔杆型和耐张杆塔杆型，确定相对应的金具。随后制作弧垂模板，进行杆塔室内定位（杆塔编号）。完成排杆后对耐张杆杆头尺寸校验、耐张杆强度及基础稳定性设计。最后对线路进行防振设计。

关键词：导线、地线；杆塔；金具；定位排杆；防振

Design of overhead Line of 220kV Ma Bei-Liu Cun Line

Abstract

This design mainly describes the design of overhead transmission lines，and the steps in the design are carried out according to the work contents in the task book. The design includes wire, ground stress, sag, and the drawing of stress sag curves. The selected tower types include straight rod tower type and tensile rod tower type, determine the corresponding hardware. Then the sag formwork was made to locate the tower in the room(Numbering tower). Check the size of the tension rod head, and design the strength and foundation stability of the tensile rod after the rod arrangement. Finally, the anti-vibration design of the line is carried out.

Keywords: Lead、Lightning conductor，Transmission tower，Fittings，Positioning rod，anti-vibration

目录

.摘 要 Ⅰ

Abstract II

1 架空导线地线应力弧垂计算.......................................................................................................1

1.1 导线的设计..................................................................................................................... 1

1.1.1 气象区参数........................................................................................................1

1.1.2 导线的相关参数................................................................................................1

1.1.3 导线的比载........................................................................................................1

1.1.4 临界档距的计算................................................................................................3

1.1.5 求各种状态下的应力弧垂...............................................................................3

1.2 地线设计.......................................................................................................................... 6

1.2.1 地线的设计.........................................................................................................6

1.2.2 地线的比载：.....................................................................................................7

1.2.3 地线临界档距的计算........................................................................................6

1.2.4 地线在各种状态下的应力弧垂........................................................................7

2 金具选配及绝缘子选择..............................................................................................................11

2.1 绝缘子选择及校验..........................................................................................................11

2.1.1 绝缘子的种类及选择.........................................................................................11

2.1.2 绝缘子的片数校验.............................................................................................12

2.2 绝缘子串组装零表............................................................................................................10

3 排杆定位及杆塔强度设计............................................................................................................15

3.1 杆塔排杆定位.................................................................................................................... 15

3.1.1 杆塔定位...............................................................................................................15

3.1.2 杆塔的定位高度..................................................................................................15

3.1.3 弧垂曲线模板......................................................................................................16

3.1.4 排杆定位...............................................................................................................16

3.2 耐张杆杆头尺寸校验....................................................................................................... 19

3.2.1 弧垂的计算...........................................................................................................19

3.2.2 下导线水平间距校验.........................................................................................19

3.2.3 上下导线交叉水平间距校验.............................................................................19

3.2.4 上下导线垂直间距校验......................................................................................20

3.2.5 防雷保护角校验..................................................................................................20

3.2.6 求相应气象条件下的水平档距、垂直档距.....................................................20

3.2.7 间隙圆....................................................................................................................21

3.3 耐张杆强度设计.................................................................................................................23

3.3.1 荷载的分类和荷载的组合.................................................................................23

3.3.2 荷载计算................................................................................................................23

3.3.3 塔荷载计算情况...................................................................................................24

4 基础定性设计.................................................................................................................................26

4.1 杆塔基础设计...................................................................................................................... 26

4.2 上拔力和下压力.................................................................................................................... 26

4.2.1 计算上拔力和下压力............................................................................................26

4.2.2 上拔稳定计算.........................................................................................................27

4.1.4 下压稳定计算........................................................................................................28

5 线路防振..........................................................................................................................................30

5.1 线路振动的种类...................................................................................................................30

5.2 防振锤型号及数量的选择..................................................................................................30

5.3 防震锤安装距离的确定..................................................................................................... 30

5.4 防震锤的安装方法 ...............................................................................................................30

5.5 导线防震锤安装距离的计算................................................................................................31

致 谢.......................................................................................................................................................36

参考文献.......................................................................................................................................................37

附 录.........................................................................................................................................................38

剩余内容已隐藏，请支付后下载全文，论文总字数：34565字