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A platform for research: civil engineering, architecture and urbanism
Large-span arch bridge main arch ring concrete ring-dividing and section cast-in-place method
The invention discloses a large-span arch bridge main arch ring concrete ring-dividing and section cast-in-place method which comprises the steps that a main arch ring is divided into a web layer, a rib plate layer and a top plate layer from bottom to top, layered pouring is conducted in sequence, and meanwhile each layer is divided into a plurality of odd-number sections in a left-right symmetry mode with an arch crown as the center; andthe sections at the same positions on the two sides of the arch crown are synchronously poured. Due to the adoption of a layered and segmented pouring mode, a lower supporting system is stable and free of deformation in the concrete pouring period of the main arch ring, pouring is completed safely, orderly and rapidly on site, the overall performance of concrete is good, and all indexes meet the requirements of regulations and specifications. Various problems of site shortage, traffic inconvenience and one-time pouring of concrete can be effectively solved, and construction of the main arch ring concrete of the arch bridge can be safely and rapidly completed.
本发明公开了一种大跨度拱桥主拱圈混凝土分环分段现浇方法，将主拱圈按照由下至上的顺序分为腹板层、肋板层和顶板层，依次顺序分层浇筑，同时每一层以拱顶为中心左、右对称划分为多个奇数节段，同步对拱顶两侧相同位置的节段进行浇筑。由于采用分层分段浇筑方式，使得主拱圈混凝土浇筑期间下部支撑系统稳定、无变形，现场安全、有序、快速浇筑完成，混凝土整体性能好，各项指标满足规程规范要求。可有效解决场地紧缺、交通不便，以及混凝土一次性浇筑中所存在的各种问题，安全、快速地完成拱桥主拱圈混凝土的施工。
Large-span arch bridge main arch ring concrete ring-dividing and section cast-in-place method
The invention discloses a large-span arch bridge main arch ring concrete ring-dividing and section cast-in-place method which comprises the steps that a main arch ring is divided into a web layer, a rib plate layer and a top plate layer from bottom to top, layered pouring is conducted in sequence, and meanwhile each layer is divided into a plurality of odd-number sections in a left-right symmetry mode with an arch crown as the center; andthe sections at the same positions on the two sides of the arch crown are synchronously poured. Due to the adoption of a layered and segmented pouring mode, a lower supporting system is stable and free of deformation in the concrete pouring period of the main arch ring, pouring is completed safely, orderly and rapidly on site, the overall performance of concrete is good, and all indexes meet the requirements of regulations and specifications. Various problems of site shortage, traffic inconvenience and one-time pouring of concrete can be effectively solved, and construction of the main arch ring concrete of the arch bridge can be safely and rapidly completed.
本发明公开了一种大跨度拱桥主拱圈混凝土分环分段现浇方法，将主拱圈按照由下至上的顺序分为腹板层、肋板层和顶板层，依次顺序分层浇筑，同时每一层以拱顶为中心左、右对称划分为多个奇数节段，同步对拱顶两侧相同位置的节段进行浇筑。由于采用分层分段浇筑方式，使得主拱圈混凝土浇筑期间下部支撑系统稳定、无变形，现场安全、有序、快速浇筑完成，混凝土整体性能好，各项指标满足规程规范要求。可有效解决场地紧缺、交通不便，以及混凝土一次性浇筑中所存在的各种问题，安全、快速地完成拱桥主拱圈混凝土的施工。
Large-span arch bridge main arch ring concrete ring-dividing and section cast-in-place method
一种大跨度拱桥主拱圈混凝土分环分段现浇方法
XU FENGKUI (author) / MA JUNLIN (author) / YAN HENGBIN (author) / YUAN XIAOPING (author) / KANG CHENGYUN (author) / ZHOU YURONG (author) / HE YONGZHAO (author)
2021-07-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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