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Method for establishing buckling and hanging system by using arch rib structure of edge span

A rib structure and side-span technology, which is applied in construction, bridge construction, erection/assembly of bridges, etc., can solve the problems of reinforced concrete consumption, environmental pollution, and difficulty, and achieve material cost saving, convenient construction, and large bearing capacity. Effect

Inactive Publication Date: 2019-01-18
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rock anchors are suitable for the conditions of crossing valleys, but are generally not suitable for the construction of cross-sea and river-crossing arch bridges located in water. However, gravity anchors and pile caps consume a lot of reinforced concrete, and construction in water is difficult and expensive. High, may cause a certain degree of pollution to the environment

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  • Method for establishing buckling and hanging system by using arch rib structure of edge span
  • Method for establishing buckling and hanging system by using arch rib structure of edge span
  • Method for establishing buckling and hanging system by using arch rib structure of edge span

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Embodiment Construction

[0037] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings. Such as Figure 1 to Figure 11 Shown: A method for establishing a buckle-hanging system using the side-span arch rib structure, followed by the following steps:

[0038] First, carry out the construction of the abutment foundation 1 and the abutment 2, the construction of the cover beam foundation 3 and the cover beam 4, and then pre-embed the embedded parts of the buckle foundation on the top of the abutment 2, and install it before pouring the concrete of the abutment 2 For the first section 5 of the side-span arch rib, after the concrete strength of the abutment 2 reaches the requirement, the steel strands in the first section 5 are stretched and grouted to consolidate the first section 5 and the abutment 2; then use The crane installs the buckle tower 6 on the abutment 2, and at the same time installs the side-span arch rib 7 and the corr...

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Abstract

The invention discloses a method for establishing a buckling and hanging system by utilizing an arch rib structure of an edge span. The method is characterized by sequentially carrying out the following steps: firstly, the construction of arch abutment foundation and arch abutment is carried out, the foundation of cover beam and the construction of cover beam, and then the embedded parts of the buckling tower foundation are embedded at the top of the arch base, the first section of the side span arch rib is installed before the concrete of the arch abutment is poured, When the concrete strength of the arch abutment meets the requirements, tensioning the stranded wire in the first segment and grouting, Consolidate that first segment with the arch abutment, then the buckling tower is installed on the arch base by the crane, At that same time, the side span arch rib and the transverse longitudinal beam correspond to the side span arch rib are installed by the support method, Remove the bracket of the side span arch rib, set anchor device of anchor point at one end of the side span arch rib located at the cover beam, bury anchor cable pipeline and position in the anchor device, pour the pressure concrete in the side span arch rib and the end beam, and pour the pressure concrete at the anchor device after the anchor device is removed.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a method for establishing a buckle-hanging system using a side-span arch rib structure. Background technique [0002] When the arch bridge is constructed by buckle-hanging method, the anchorage of the anchor cable in the buckle-hanging system usually adopts gravity anchorage, pile cap anchorage, rock anchor and other anchoring methods. Rock anchors are suitable for the conditions of crossing valleys, but are generally not suitable for the construction of cross-sea and river-crossing arch bridges located in water. However, gravity anchors and pile caps consume a lot of reinforced concrete, and construction in water is difficult and expensive. High, it may cause a certain degree of pollution to the environment. When using the buckle-hanging method of steel box double-arch bridges to construct arch bridges, especially multi-arch bridges in water, it is necessary to find a constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 刘亚丽李凯陆滔李政一孟令凯郑鹏程张广涛孙长志沙权贤
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG
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