Capping beam structure and construction method thereof

A construction method and technology of covering beams, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of high comprehensive cost and large maintenance workload, and achieve the goal of reducing project cost, reducing the weight and thickness of covering beams. Effect

Pending Publication Date: 2018-11-13
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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Problems solved by technology

However, the post-maintenance workload of this type of cap beam is extremely large, and the

Method used

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  • Capping beam structure and construction method thereof
  • Capping beam structure and construction method thereof
  • Capping beam structure and construction method thereof

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing, by describing a preferred specific embodiment in detail, the feature of the present invention is further elaborated, so that the understanding of those skilled in the art:

[0039] Such as Figure 1-Figure 3 , the marks in the figure are: hollow structure 1, solid structure 2, external prestressed steel beam 3.

[0040] The hollow structure 1 and solid structure 2 in the new cover beam structure are poured into an integral cover beam structure in the prefabrication factory. The hollow structure 1 is made of ultra-high performance concrete, and the solid structure 2 is made of ordinary concrete. After the overall cover beam structure is maintained to the design strength, the external prestressed steel beam 3 is stretched. After the 3 tensioning and anchoring of the external prestressed steel beams are completed, the prefabricated cover beam structure is transported to the construction site as a whole through the transporta...

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Abstract

The invention relates to the technical field of bridge construction, in particular to a capping beam structure. The capping beam structure is characterized by comprising hollow structures and solid structures, the solid structures correspond to the positions of bridge piers, and the hollow structures correspond to the positions between adjacent bridge piers and the cantilever position of the capping beam. External prestressing tendons are arranged on the end portions of the capping beam in a tension mode, steel tendon through holes are arranged in the solid structures to realize the steering of the external prestressing tendons. The solid parts of the capping beam structure are connected with the bridge piers to form a whole, and the solid structures are connected with stand columns of thebridge piers to form consolidation nodes. The capping beam structure can greatly reduce the weight of the capping beam structure, the amount of the stand columns, a bearing platform and a pile foundation are saved, construction cost is reduced, the prefabricated assembly process can be more widely applied, the standardization, factory and assembly of the capping beam structure are realized, and the level of bridge construction in China is improved, good environmental benefits, social benefits and economic benefits are achieved, and promotion and application are facilitated

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a cover beam structure. Background technique [0002] At present, in the bridge construction in our country, there are generally two types of cap-beam structures: [0003] (1) Ordinary concrete cap beam. Ordinary concrete is used and the internal prestress is set. When the cover beam structure is under a small force, the internal prestress can also be canceled and only ordinary steel bars are set. This type of cover beam generally adopts the cast-in-place process of brackets. With the implementation of the national "green building" development strategy, more and more prefabricated assembly processes are used for the construction of cover beam structures. However, this type of cover beam is heavy. Although it can be hollowed out inside the cover beam to reduce weight, due to the limitation of the layout space of the prestress in the body and the limitation of the perf...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01D21/00
CPCE01D19/00E01D21/00
Inventor 马骉黄虹苏俭田周松
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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