湖南铁路科技职业技术学院电子电气系毕业设计（论文）目录摘要.........................................................................................................................................1第1章绪论........................................................................................................................21.1接触网的发展历史....................................................................................................21.2高速接触网的技术特征........................................................................................31.3设计的目的................................................................................................................4第2章接触网结构与组成....................................................................................................52.1接触网支持装备........................................................................................................52.1.1软横跨..............................................................................................................52.1.2硬横跨..............................................................................................................62.1.3支柱装配..........................................................................................................72.2接触网基础组成........................................................................................................92.2.1基础..................................................................................................................92.2.2支柱................................................................................................................112.2.3预埋件............................................................................................................112.2.4承力索及接触线架设....................................................................................122.2.5接触悬挂........................................................................................................13第3章设备............................................................................