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拉萨市纳金大桥为矮塔斜拉桥,其中分丝管为矮塔斜拉桥索塔鞍座的特殊形式,其安装技术在矮塔斜拉桥施工中占有重要的地位。文章通过纳金大桥分丝管的定位安装过程,对分丝管安装质量的控制及施工工艺进行详细的介绍分析。
Nakin Bridge in Lhasa is a short pylon cable-stayed bridge, of which the sub-pipe is a special form of the saddle of the tower of the short pylon cable-stayed bridge. Its installation technology occupies an important position in the construction of the dwarf pylon cable-stayed bridge. Through the positioning and installation process of the sub-pipe of the Nagin Bridge, the article introduces and analyzes in detail the control of the quality of the sub-pipe installation and the construction technology.