Arch bridge flexible hinge device and arch bridge

A flexible hinge and arch bridge technology, which is applied in the field of bridge engineering, can solve the problems of poor bonding firmness between concrete and steel structures, poor bridge structure stability, and poor bonding firmness, so as to avoid local cracking, facilitate manufacturing and processing, and improve pouring quality effect

Active Publication Date: 2022-03-22
中交(广州)建设有限公司
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of arch bridge flexible hinge device, to improve the poor bonding firmness of concrete and steel structure when pouring concrete at the joint position of main arch and abdominal arch in the construction process of traditional main belly arch bridge Cracking leads to poor stability and safety of the bridge structure
[0007] The object of the present invention is to provide a kind of arch bridge, to improve the poor bonding firmness of concrete and steel bar structure when pouring concrete at the connection position of main arch and abdominal arch in the construction process of traditional main belly arch bridge, easy cracking after pouring is finished and causes bridge The problem of poor stability and poor safety of the body structure

Method used

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  • Arch bridge flexible hinge device and arch bridge
  • Arch bridge flexible hinge device and arch bridge
  • Arch bridge flexible hinge device and arch bridge

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Embodiment Construction

[0032] Reinforced concrete arch bridge is a common form of bridge, which is widely used in crossing rivers and canyons. The arch ring of an arch bridge usually consists of the main arch ring and the belly arch ring. Considering the most unfavorable effects of dead load + cooling + live load of the belly arch foot, the maximum tensile stress at the upper edge of the belly arch foot may exceed the tensile stress limit of the concrete. The arch foot and the load-bearing area are most likely to cause cracking. Usually, hinges (incomplete hinges) are set at the arch foot of the abdominal arch, and the hinge is a concrete solid section. The top and bottom surfaces of the arch foot section are grooved and poured twice, and ordinary steel bars are used at the junction with the main arch. Construction For the main arch, pre-buried the reinforcement of the arch foot of the abdominal arch. After the construction of the bridge deck system, the support of the abdominal arch was removed, an...

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Abstract

The invention provides a flexible hinge device for an arch bridge and an arch bridge, which belong to the field of bridge engineering and include at least one hinge unit and a connecting piece. At least one hinge unit includes a main rib and an auxiliary rib. The main rib includes two opposite installation grooves, each The bottom of the installation groove is provided with auxiliary ribs, one end of the auxiliary ribs is connected with the main ribs, and the other end extends toward the notch of the installation groove; the adjacent main ribs are connected by connecting pieces. The flexible hinge device of the arch bridge can ensure the construction quality of the post-cast concrete at the joint section of the main arch and the abdominal arch, and can effectively release the additional stress generated during the construction process, effectively avoiding the local cracking of the concrete at the joint section of the main arch and the abdominal arch, and improving the pouring efficiency. The quality improves the firmness and safety of the bridge body.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to an arch bridge flexible hinge device and an arch bridge. Background technique [0002] The Kwai-shaped arch bridge cancels the column or diagonal bracing, and instead uses the belly arch to span the main pier and directly connect the main arches on both sides. It is transparent and shaped like sunflower petals, so it gets its name. The sunflower-shaped arch bridge not only has the traditional heavy beauty of the arch bridge, but also shows the modern smart beauty because of its line shape, and has outstanding aesthetic effects. Because the pier top abdominal arch connects the main arches on both sides, it produces a horizontal thrust on the main arch, which makes the main arch bear the action of concentrated force, which increases the complexity of the structure, and the stress on the joint of the main abdominal arch is particularly complicated. [0003] Under the action of co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D4/00E01D19/00
CPCE01D4/00E01D19/00
Inventor 秦星段振益江大骐刘景红李强杨碧祥陈超邱奇鹏顾京伟方培源
Owner 中交(广州)建设有限公司
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