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A platform for research: civil engineering, architecture and urbanism
Large-span arched continuous rigid frame bridge Y-shaped pier construction system and construction method
The invention relates to a construction system and method for Y-shaped piers of a large-span arched continuous rigid frame bridge. The construction method comprises the following steps that the Y-shaped piers are constructed through a bearing platform upper supporting frame-built-in stiff framework-balance tower combined formwork system; constructing inclined legs section by section and then removing the mold; constructing a bearing platform and a construction platform in water by adopting an underwater platform auxiliary bracket span-reducing cable-stayed balance supporting system; and an inner side support self-balancing formwork pouring system is adopted. The method has the beneficial effects that the supporting frame-built-in stiff framework-balance tower combined formwork system on the bearing platform can achieve Y-shaped pier construction in a small construction site, meanwhile, the pier body line type and the construction quality can be guaranteed, and good reliability is achieved; according to the reinforcing technology for the external stiff framework of the outer side formwork, the external stiff framework is combined with the inclined leg support, system supporting of inclined legs of the Y-shaped pier can be well completed, and the reinforcing technology is particularly suitable for construction of the large-span Y-shaped pier.
本发明涉及一种大跨径拱形连续刚构桥Y形墩施工体系及施工方法，包括以下步骤：采用承台上支撑架‑内置式劲性骨架‑平衡塔架组合支模体系施作Y型墩；逐节施作斜腿后拆模；采用水中平台辅助牛腿减跨斜拉平衡支撑体系，在水中施做承台和施工平台；采用内侧支架自平衡支模浇筑体系。本发明的有益效果是：承台上支撑架‑内置式劲性骨架‑平衡塔架组合支模体系可实现较小施工场地的Y型墩施工，同时能够保证墩身线型以及施工质量，具有良好的可靠性；外侧模板外置劲性骨架补强技术通过外置劲性骨架结合斜腿支架，能够良好的完成Y型墩斜腿的体系支撑，特别适用于大跨径的Y型墩施工。
Large-span arched continuous rigid frame bridge Y-shaped pier construction system and construction method
The invention relates to a construction system and method for Y-shaped piers of a large-span arched continuous rigid frame bridge. The construction method comprises the following steps that the Y-shaped piers are constructed through a bearing platform upper supporting frame-built-in stiff framework-balance tower combined formwork system; constructing inclined legs section by section and then removing the mold; constructing a bearing platform and a construction platform in water by adopting an underwater platform auxiliary bracket span-reducing cable-stayed balance supporting system; and an inner side support self-balancing formwork pouring system is adopted. The method has the beneficial effects that the supporting frame-built-in stiff framework-balance tower combined formwork system on the bearing platform can achieve Y-shaped pier construction in a small construction site, meanwhile, the pier body line type and the construction quality can be guaranteed, and good reliability is achieved; according to the reinforcing technology for the external stiff framework of the outer side formwork, the external stiff framework is combined with the inclined leg support, system supporting of inclined legs of the Y-shaped pier can be well completed, and the reinforcing technology is particularly suitable for construction of the large-span Y-shaped pier.
本发明涉及一种大跨径拱形连续刚构桥Y形墩施工体系及施工方法，包括以下步骤：采用承台上支撑架‑内置式劲性骨架‑平衡塔架组合支模体系施作Y型墩；逐节施作斜腿后拆模；采用水中平台辅助牛腿减跨斜拉平衡支撑体系，在水中施做承台和施工平台；采用内侧支架自平衡支模浇筑体系。本发明的有益效果是：承台上支撑架‑内置式劲性骨架‑平衡塔架组合支模体系可实现较小施工场地的Y型墩施工，同时能够保证墩身线型以及施工质量，具有良好的可靠性；外侧模板外置劲性骨架补强技术通过外置劲性骨架结合斜腿支架，能够良好的完成Y型墩斜腿的体系支撑，特别适用于大跨径的Y型墩施工。
Large-span arched continuous rigid frame bridge Y-shaped pier construction system and construction method
大跨径拱形连续刚构桥Y形墩施工体系及施工方法
XU YUEQUN (author) / FU QIANG (author) / YANG JIN (author) / LI XIAOJIAN (author) / LIU DADA (author)
2024-01-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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