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A platform for research: civil engineering, architecture and urbanism
Suspension cable-arch combined system bridge structure and assembly construction method thereof
The invention discloses a suspension cable-arch combined system bridge structure and an assembly construction method thereof. Arch ribs are arranged below a main beam of a suspension bridge, arch columns are arranged on the arch ribs, the upper ends of the arch rib columns are connected with the main beam, the lower ends of the arch rib columns are connected with the arch ribs, and the two ends ofthe arch ribs are fixed to arch rib foundations which are independent foundations; the arch rib foundations are arranged below the main beam; the arch ribs comprise a plurality of prefabricated archrib sections, and the prefabricated arch rib sections are fixedly connected. Arch rib main arches and main cable surfaces are not coplanar, so that the main beam forms a continuous structure in the transverse direction to reduce the height of the main beam; the axial force level of a bridge cable bent tower and a main cable of the suspension cable-arch combined system is lower, so that a lighter structural size can be made, and the construction control difficulty is also reduced; compared with a common arch bridge, the load level of the arch ring and the arch foot of the suspension cable-archcombined system bridge is low, the size of the structure can be reduced, the axial force of the cable bent tower can be reduced, and the horizontal thrust of the main arch ring can be greatly reduced.
本发明公开一种悬索‑拱组合体系桥梁结构及其装配化施工方法，悬索桥的主梁下方设置拱肋，拱肋上设置拱上立柱，拱肋立柱的上端连接主梁，拱肋立柱的下端连接拱肋，拱肋两端固定在拱肋基础上，拱肋基础采用独立基础，拱肋基础设置在主梁下方；拱肋包括若干预制拱肋节段，所述预制拱肋节段之间固定连接；拱肋主拱和主缆索面不共面，使主梁在横向形成连续结构，以降低主梁高度；悬索‑拱组合体系桥梁索塔和主缆的轴力水平更低，因此可以做出更加轻巧的结构尺寸，这也降低了施工控制的难度；相比普通拱桥，悬索‑拱组合体系桥梁拱圈和拱脚的荷载水平较低，亦可以减小结构的尺寸，不仅能减小索塔的轴力，也将使主拱圈的水平推力大大减小。
Suspension cable-arch combined system bridge structure and assembly construction method thereof
The invention discloses a suspension cable-arch combined system bridge structure and an assembly construction method thereof. Arch ribs are arranged below a main beam of a suspension bridge, arch columns are arranged on the arch ribs, the upper ends of the arch rib columns are connected with the main beam, the lower ends of the arch rib columns are connected with the arch ribs, and the two ends ofthe arch ribs are fixed to arch rib foundations which are independent foundations; the arch rib foundations are arranged below the main beam; the arch ribs comprise a plurality of prefabricated archrib sections, and the prefabricated arch rib sections are fixedly connected. Arch rib main arches and main cable surfaces are not coplanar, so that the main beam forms a continuous structure in the transverse direction to reduce the height of the main beam; the axial force level of a bridge cable bent tower and a main cable of the suspension cable-arch combined system is lower, so that a lighter structural size can be made, and the construction control difficulty is also reduced; compared with a common arch bridge, the load level of the arch ring and the arch foot of the suspension cable-archcombined system bridge is low, the size of the structure can be reduced, the axial force of the cable bent tower can be reduced, and the horizontal thrust of the main arch ring can be greatly reduced.
本发明公开一种悬索‑拱组合体系桥梁结构及其装配化施工方法，悬索桥的主梁下方设置拱肋，拱肋上设置拱上立柱，拱肋立柱的上端连接主梁，拱肋立柱的下端连接拱肋，拱肋两端固定在拱肋基础上，拱肋基础采用独立基础，拱肋基础设置在主梁下方；拱肋包括若干预制拱肋节段，所述预制拱肋节段之间固定连接；拱肋主拱和主缆索面不共面，使主梁在横向形成连续结构，以降低主梁高度；悬索‑拱组合体系桥梁索塔和主缆的轴力水平更低，因此可以做出更加轻巧的结构尺寸，这也降低了施工控制的难度；相比普通拱桥，悬索‑拱组合体系桥梁拱圈和拱脚的荷载水平较低，亦可以减小结构的尺寸，不仅能减小索塔的轴力，也将使主拱圈的水平推力大大减小。
Suspension cable-arch combined system bridge structure and assembly construction method thereof
一种悬索-拱组合体系桥梁结构及其装配化施工方法
LIU YAORONG (author) / LONG GANG (author) / GAO ZHONGJUN (author) / DU BAIJI (author) / LI FENG (author) / LIU JIANSHE (author) / WU FENG (author)
2021-01-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Movable bridge of cable-stayed-suspension cable-arch combined system
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