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A platform for research: civil engineering, architecture and urbanism
Steel-concrete superposed beam cable-stayed bridge cantilever construction method
The invention discloses a cantilever construction method for a steel-concrete superposed beam cable-stayed bridge. The cantilever construction method for the steel-concrete superposed beam cable-stayed bridge comprises the following steps that part of steel beams of a to-be-hoisted beam section are hoisted on a preassembled cantilever beam foundation; a bridge deck slab of the first beam section is laid; hoisting the steel beam of the next to-be-hoisted beam section; tensioning an inhaul cable of the to-be-hoisted beam section for the first time; a bridge deck slab of the second beam section is laid; a wet joint between the bridge deck slabs on the first beam section and the second beam section is poured and maintained; and the inhaul cable of the to-be-hoisted beam section and the inhaul cable of the third beam section are tensioned for the second time. According to the construction method for the cantilever of the steel-concrete superposed beam cable-stayed bridge, the construction mode that the steel beam of the beam section to be hoisted is hoisted in advance, the inhaul cable is tensioned lagging, and the two wet joints are poured synchronously is formed, so that the purposes of opening a field working face, carrying out multiple works in parallel, improving the construction efficiency and saving the construction cost can be achieved; the defects that traditional construction procedures are single, idle time is long, and the construction period is long are overcome.
本发明公开了一种钢‑混叠合梁斜拉桥悬臂施工方法，该钢‑混叠合梁斜拉桥悬臂施工方法包括如下步骤：在预装悬臂梁基础上吊装待吊装梁段的部分钢梁；铺设所述第一梁段的桥面板；吊装下一个待吊装梁段的钢梁；第一次张拉待吊装梁段的拉索；铺设所述第二梁段的桥面板；浇筑第一梁段和所述第二梁段上桥面板之间的湿接缝并养护；第二次张拉待吊装梁段的拉索和第三梁段的拉索。本发明公开的钢‑混叠合梁斜拉桥悬臂施工方法通过形成了超前吊装待吊装梁段的钢梁、滞后张拉拉索、同步浇筑两段湿接缝的施工模式，可达到打开现场工作作业面、多项工作平行进行、提高施工效率、节约施工成本的目的，解决了传统施工工序单一、闲置时间多、施工工期长的缺点。
Steel-concrete superposed beam cable-stayed bridge cantilever construction method
The invention discloses a cantilever construction method for a steel-concrete superposed beam cable-stayed bridge. The cantilever construction method for the steel-concrete superposed beam cable-stayed bridge comprises the following steps that part of steel beams of a to-be-hoisted beam section are hoisted on a preassembled cantilever beam foundation; a bridge deck slab of the first beam section is laid; hoisting the steel beam of the next to-be-hoisted beam section; tensioning an inhaul cable of the to-be-hoisted beam section for the first time; a bridge deck slab of the second beam section is laid; a wet joint between the bridge deck slabs on the first beam section and the second beam section is poured and maintained; and the inhaul cable of the to-be-hoisted beam section and the inhaul cable of the third beam section are tensioned for the second time. According to the construction method for the cantilever of the steel-concrete superposed beam cable-stayed bridge, the construction mode that the steel beam of the beam section to be hoisted is hoisted in advance, the inhaul cable is tensioned lagging, and the two wet joints are poured synchronously is formed, so that the purposes of opening a field working face, carrying out multiple works in parallel, improving the construction efficiency and saving the construction cost can be achieved; the defects that traditional construction procedures are single, idle time is long, and the construction period is long are overcome.
本发明公开了一种钢‑混叠合梁斜拉桥悬臂施工方法，该钢‑混叠合梁斜拉桥悬臂施工方法包括如下步骤：在预装悬臂梁基础上吊装待吊装梁段的部分钢梁；铺设所述第一梁段的桥面板；吊装下一个待吊装梁段的钢梁；第一次张拉待吊装梁段的拉索；铺设所述第二梁段的桥面板；浇筑第一梁段和所述第二梁段上桥面板之间的湿接缝并养护；第二次张拉待吊装梁段的拉索和第三梁段的拉索。本发明公开的钢‑混叠合梁斜拉桥悬臂施工方法通过形成了超前吊装待吊装梁段的钢梁、滞后张拉拉索、同步浇筑两段湿接缝的施工模式，可达到打开现场工作作业面、多项工作平行进行、提高施工效率、节约施工成本的目的，解决了传统施工工序单一、闲置时间多、施工工期长的缺点。
Steel-concrete superposed beam cable-stayed bridge cantilever construction method
一种钢-混叠合梁斜拉桥悬臂施工方法
HUANG BIN (author) / ZENG ZHENHUA (author) / ZHANG GUOGANG (author) / WU KUNPING (author) / FENG BIN (author) / YU JIANGYU (author)
2023-11-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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