A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Main arch structure suitable for large-span cantilever pouring high-strength and high-toughness concrete arch bridge
The invention relates to the field of reinforced concrete arch bridges, in particular to a main arch structure suitable for a large-span cantilever pouring high-strength and high-toughness concrete arch bridge. The main arch structure comprises two single-box-shaped arch ribs, a plurality of inter-rib transverse partition plates are distributed between the two arch ribs, and each inter-rib transverse partition plate is transversely connected with the two arch ribs. A double-box single-chamber structure is adopted, that is, an arch ring is provided with two arch ribs, each arch rib is providedwith a cavity, and only one set of inner mold needs to be adopted, so that the template process is simplified; a plurality of inter-rib transverse partition plates are arranged between the two arch ribs, and the inter-rib transverse partition plates and the arch rib structures on the two sides are connected into a whole, so that the transverse stability of the arch ring is guaranteed. According tothe invention, the stress stability is good, the section size of the main arch is reduced, the weight of cantilever poured concrete is greatly reduced, and the construction stress of a cable-stayed buckling and hanging system is reduced, so that the self weight is reduced, the lightness is realized, and the spanning capability is improved. The main arch structure is particularly suitable for themain arch with the span of over 300m.
本发明涉及钢筋砼拱桥领域，具体涉及一种适用于大跨径悬臂浇筑高强高韧性砼拱桥的主拱构造，包括两条单箱形拱肋，两条拱肋之间分布有若干个肋间横隔板，每个肋间横隔板横向连接两条拱肋。本发明采用双箱单室结构，即拱圈有两条拱肋，每条拱肋设有一个腔室、只需要采用一套内模，简化了模板工艺；两条拱肋之间通过设置若干肋间横隔板，将肋间横隔板与两侧拱肋结构相连成整体，保证拱圈的横向稳定性。本发明不仅受力稳定性好，还减小了主拱截面尺寸，大大减少悬臂浇筑混凝土重量，减小斜拉扣挂体系施工受力，从而减轻自重、实现轻型化，提高了跨越能力，尤其适用于300米以上跨径的主拱。
Main arch structure suitable for large-span cantilever pouring high-strength and high-toughness concrete arch bridge
The invention relates to the field of reinforced concrete arch bridges, in particular to a main arch structure suitable for a large-span cantilever pouring high-strength and high-toughness concrete arch bridge. The main arch structure comprises two single-box-shaped arch ribs, a plurality of inter-rib transverse partition plates are distributed between the two arch ribs, and each inter-rib transverse partition plate is transversely connected with the two arch ribs. A double-box single-chamber structure is adopted, that is, an arch ring is provided with two arch ribs, each arch rib is providedwith a cavity, and only one set of inner mold needs to be adopted, so that the template process is simplified; a plurality of inter-rib transverse partition plates are arranged between the two arch ribs, and the inter-rib transverse partition plates and the arch rib structures on the two sides are connected into a whole, so that the transverse stability of the arch ring is guaranteed. According tothe invention, the stress stability is good, the section size of the main arch is reduced, the weight of cantilever poured concrete is greatly reduced, and the construction stress of a cable-stayed buckling and hanging system is reduced, so that the self weight is reduced, the lightness is realized, and the spanning capability is improved. The main arch structure is particularly suitable for themain arch with the span of over 300m.
本发明涉及钢筋砼拱桥领域，具体涉及一种适用于大跨径悬臂浇筑高强高韧性砼拱桥的主拱构造，包括两条单箱形拱肋，两条拱肋之间分布有若干个肋间横隔板，每个肋间横隔板横向连接两条拱肋。本发明采用双箱单室结构，即拱圈有两条拱肋，每条拱肋设有一个腔室、只需要采用一套内模，简化了模板工艺；两条拱肋之间通过设置若干肋间横隔板，将肋间横隔板与两侧拱肋结构相连成整体，保证拱圈的横向稳定性。本发明不仅受力稳定性好，还减小了主拱截面尺寸，大大减少悬臂浇筑混凝土重量，减小斜拉扣挂体系施工受力，从而减轻自重、实现轻型化，提高了跨越能力，尤其适用于300米以上跨径的主拱。
Main arch structure suitable for large-span cantilever pouring high-strength and high-toughness concrete arch bridge
一种适用于大跨径悬臂浇筑高强高韧性砼拱桥的主拱构造
MOU TINGMIN (author) / JIANG JIANJUN (author) / ZHENG XUFENG (author) / ZHOU HAIBO (author) / LU XIAOFENG (author) / TAN BANGMING (author) / HE FENG (author) / WEN KAI (author) / DENG LIWEN (author) / GANG DAXING (author)
2020-09-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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