A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mountainous area steel truss girder large-span side-span cantilever assembling method
The invention provides a large-span side-span cantilever splicing method for a steel truss girder in a mountainous area. The method comprises the following steps: splicing a plurality of sections of secondary girders on a plurality of corresponding auxiliary piers section by section; the rear end of the main beam and the front end of the adjacent secondary beam are spliced together on the auxiliary pier close to the main pier in a cantilever splicing mode; a sling tower is vertically installed at the top of the main beam, and the sling tower corresponds to the auxiliary pier connected with the rear end of the main beam; the front side and the rear side of the sling tower are each provided with an inhaul cable. The two inhaul cables are pre-tensioned; subsequent sections of the main beam are installed, and the front end of the main beam is connected to the main tower; and after the side span steel truss girders are completely installed, the two inhaul cables and the sling tower are dismantled. The method has the beneficial effects that when the large-span side-span cantilever is installed, safety and reliability are achieved, operation is easy and convenient, economical efficiency is high, large popularization value is achieved, and a reference function is provided for assembling of the large-span side-span steel truss girder in the mountainous area.
本发明提供了一种山区钢桁梁大跨度边跨悬臂拼装方法，包括以下步骤：包括以下步骤：将多段次梁在多个相应的辅助墩上逐节拼装；在靠近主墩的辅助墩上通过悬臂拼接方式将主梁后端与相邻的次梁前端拼接在一起；在主梁顶部竖直安装吊索塔架，且吊索塔架对应于连接主梁后端的辅助墩处；在吊索塔架前后两侧均设置一根拉索；对两根拉索进行预张拉；进行主梁后续节段的安装，使主梁前端连接至主塔处；在边跨钢桁梁全部安装完成后,对两根拉索及吊索塔架进行拆除。本发明有益效果：该方法在安装大跨度边跨悬臂时安全可靠、操作简便、经济性强，具有较大的推广价值，为山区大跨度边跨钢桁梁拼装提供了借鉴作用。
Mountainous area steel truss girder large-span side-span cantilever assembling method
The invention provides a large-span side-span cantilever splicing method for a steel truss girder in a mountainous area. The method comprises the following steps: splicing a plurality of sections of secondary girders on a plurality of corresponding auxiliary piers section by section; the rear end of the main beam and the front end of the adjacent secondary beam are spliced together on the auxiliary pier close to the main pier in a cantilever splicing mode; a sling tower is vertically installed at the top of the main beam, and the sling tower corresponds to the auxiliary pier connected with the rear end of the main beam; the front side and the rear side of the sling tower are each provided with an inhaul cable. The two inhaul cables are pre-tensioned; subsequent sections of the main beam are installed, and the front end of the main beam is connected to the main tower; and after the side span steel truss girders are completely installed, the two inhaul cables and the sling tower are dismantled. The method has the beneficial effects that when the large-span side-span cantilever is installed, safety and reliability are achieved, operation is easy and convenient, economical efficiency is high, large popularization value is achieved, and a reference function is provided for assembling of the large-span side-span steel truss girder in the mountainous area.
本发明提供了一种山区钢桁梁大跨度边跨悬臂拼装方法，包括以下步骤：包括以下步骤：将多段次梁在多个相应的辅助墩上逐节拼装；在靠近主墩的辅助墩上通过悬臂拼接方式将主梁后端与相邻的次梁前端拼接在一起；在主梁顶部竖直安装吊索塔架，且吊索塔架对应于连接主梁后端的辅助墩处；在吊索塔架前后两侧均设置一根拉索；对两根拉索进行预张拉；进行主梁后续节段的安装，使主梁前端连接至主塔处；在边跨钢桁梁全部安装完成后,对两根拉索及吊索塔架进行拆除。本发明有益效果：该方法在安装大跨度边跨悬臂时安全可靠、操作简便、经济性强，具有较大的推广价值，为山区大跨度边跨钢桁梁拼装提供了借鉴作用。
Mountainous area steel truss girder large-span side-span cantilever assembling method
一种山区钢桁梁大跨度边跨悬臂拼装方法
GUO WANLIANG (author) / LUO SHENGHONG (author) / WANG SUI (author) / CHEN YINGLIANG (author) / ZHU LIANREN (author) / WANG RENHUI (author) / SUN HAORAN (author) / XING WENJING (author) / GUO MINGXUAN (author)
2024-11-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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