张家界大峡谷玻璃桥主要施工技术

发布时间：2018-05-02 09:50

本文选题：自锚式悬索桥 + 玻璃桥　；参考：《桥梁建设》2017年03期

【摘要】：张家界大峡谷玻璃桥为主跨430m的空间索面地锚式悬索桥。根据该桥结构特点,依据其地形及地质条件,桥塔群桩基础采用人工挖孔施工,独柱式钢筋混凝土桥塔采用小块木模板拼装、分节段浇筑法施工;西岸隧道式锚碇及东岸重力式锚碇采用机械开挖,锚碇混凝土采用分层浇筑;利用猫道上方的天缆牵引主缆索股,利用平行架设横向对拉技术调整主缆的空间线形;采用新型对拉工具直接拉近主缆间距,安装索夹并调整其空间角度;加劲梁的纵、横梁在场内制作后现场拼装成完整节段,采用缆索吊装法从两侧向中间对称吊装,与吊索安装同步进行;桥面露空处铺设大尺寸透明钢化玻璃,桥面非露空处铺设钢化防滑玻璃。
[Abstract]:Zhangjiajie Grand Canyon Glass Bridge is a space cable surface anchor suspension bridge with a main span of 430 m. According to the structural characteristics of the bridge, according to its topography and geological conditions, the pile group foundation of the bridge tower is constructed by manual digging, while the reinforced concrete bridge tower of the single column type is assembled with small pieces of wood formwork and constructed by segmental pouring method. The West Bank Tunnel Anchorage and the East Bank Gravity Anchorage are excavated by machinery, the concrete of the Anchorage is constructed by stratified pouring, the main cable strands are towed by the sky cable above the Cat Road, and the spatial alignment of the main cable is adjusted by using the horizontal parallel erection and drawing technique. The new drawing tool is used to directly draw the main cable spacing, install the cable clamp and adjust its spatial angle. After the stiffening beam is made in the field, the longitudinal and transverse beams are assembled into complete segments in the field, and the cable hoisting method is used to hoist the beam from both sides to the middle symmetrically. Synchronize with sling installation; large size transparent toughened glass is laid in the exposed space of bridge deck, and steel anti-slip glass is laid in non-exposed area of bridge deck.
【作者单位】：中建六局桥梁有限公司;
【分类号】：U445.4

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