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一、现有支柱简介接触网支柱是接触网的主要组成部分。以65米设一根支柱计,每100公里电化铁路约需1500根支柱。据已建成的电化铁路的资料分析,区间所用的腕臂支柱约占支柱总数的74～81％,在车站目前我国采用软横跨支柱,约占支柱总数的19～26％。目前我国在电化铁路干线上腕臂支柱采用预应力钢筋混凝土工字形截面双肢柱,支柱的容量(即悬挂方向地面处的标准弯矩值)为1.8、3.8、7.8吨—米;地面上高度,全补偿支柱为8.2米,半补偿支柱为8.7米。1970年设计试制成功车站用的软横跨支柱,其容量
I. Introduction to Existing Pillars The contact network pillar is the main component of the catenary. To 65 meters to set up a pillars meter, about 10000 kilometers per 100 km Electrified railway pillar. According to the data of completed railway, the arm brace used in the interval accounts for 74-81% of the total number of pillars. At present, China uses soft straddle pillars, accounting for 19-26% of the total number of pillars. At present, the prestressed reinforced concrete I-shaped cross-section twin limbs are used in the armrests of the EH Railway. The capacity of the pillars (that is, the standard bending moment on the ground in the suspension direction) is 1.8, 3.8 and 7.8 tons- The full compensation pillar is 8.2 meters, and the half-compensation pillar is 8.7 meters. In 1970, the soft-spanned pillars for the successful trial of the station were designed and their capacity