350km/h高速铁路矮塔斜拉桥主塔液压爬模施工技术

Construction Technology of Using Hydraulic Climbing Formwork to Extradosed Cable-stayed Bridge on 350km/h High Speed Railway

本文结合350km/h高速铁路矮塔斜拉桥花瓶型主塔施工,对主塔节段划分、液压爬模面板配置、架体布置、爬模轨道制定等内容进行了详尽介绍。合理确定爬模面板高度,对主塔变截面位置进行优化处理,实现仅需一次架体转换完成主塔施工全过程;加工定型钢模处理塔柱倒角与凹槽造型,节省工期,发挥液压爬模在花瓶型主塔施工中的高效性。

Combined with the construction of the vase-type main tower of the 350km/h high-speed railway low-tower cable-stayed bridge,this paper gives a detailed introduction to the main tower segment division,hydraulic climbing formwork panel configuration,frame layout,and climbing formwork track formulation.Reasonably determine the height of the climbing formwork panel,optimize the position of the variable section of the main tower,and realize the entire construction process of the main tower with only one frame conversion.Efficiency of climbing formwork in the construction of vase-shaped main tower.