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Construction method for waterproof isolation structure of anchor plate of cable-stayed bridge by adopting steel-concrete composite beam

A technology for isolating structures and construction methods, applied in the direction of cable-stayed bridges, bridges, bridge parts, etc., can solve the time-consuming and labor-intensive maintenance problems of rainwater along the anchor tension slab and bridge deck concrete slab, and achieve small damage area and avoid The effect of corrosion

Inactive Publication Date: 2013-03-27
CHONGQING JIAOTONG UNIVERSITY
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for the waterproof isolation structure of the anchor slab of a steel-concrete combined beam cable-stayed bridge, and to solve the problem that the current rigid waterproof construction method cannot solve the problem that rainwater seeps down along the gap between the anchor slab and the bridge deck concrete slab And maintenance time-consuming, labor-intensive technical problems

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  • Construction method for waterproof isolation structure of anchor plate of cable-stayed bridge by adopting steel-concrete composite beam

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Embodiment Construction

[0016] The method of the invention is used in the construction of the waterproof structure of the anchor plate of the newly built steel-concrete combined beam cable-stayed bridge, or in the reconstruction construction of the waterproof structure of the anchor plate of the built steel-concrete combined beam cable-stayed bridge.

[0017] like figure 1 As shown, 1 indicates the steel girder of the steel-concrete composite cable-stayed bridge; 2 indicates the anchor plate; 3 indicates the precast concrete bridge deck; 4 indicates the flexible isolation material block; 5 indicates the waterproof membrane; 6 indicates the cast-in-place concrete; 7 Indicates asphalt concrete bridge deck pavement; 8 indicates waterproofing agent.

[0018] The specific construction method is as follows:

[0019] The first step is to prefabricate the concrete bridge deck 3 180 days in advance;

[0020] The second step is to install the prefabricated concrete bridge deck 3 in the form of a reserved not...

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Abstract

The invention relates to a construction method for a waterproof isolation structure of an anchor plate of a cable-stayed bridge by adopting a steel-concrete composite beam. The construction method comprises the following steps of: firstly, prefabricating a concrete bridge deck slab in advance; secondly, casting concrete in a notch reserved between the prefabricated concrete bridge deck slab and the anchor plate in place after the prefabricated concrete bridge deck slab is installed between a steel main beam and the anchor plate in a manner of reserving the notch, and painting a waterproof agent on the concrete surface and the surface of the prefabricated concrete bridge deck slab after the maintenance; thirdly, laying flexible isolation material blocks on an extended cast-in-place concrete surface of the anchor plate, wherein the laid flexible isolation material blocks lean against and abut against oblique blocks of the anchor plate; fourthly, coating a waterproof film made of waterproof materials; and fifthly, laying an asphalt concrete bridge floor. The invention aims at solving the technical problems of incapability of overcoming the defect that rainwater leaks downwards along a gap between the anchor plate and a concrete slab of the bridge floor and time and labor waste for maintenance in the conventional rigid waterproof construction method.

Description

technical field [0001] The invention relates to a construction method for a waterproof isolation structure of an anchor plate of a steel-concrete combined beam cable-stayed bridge, in particular to a construction method for a waterproof isolation structure in which flexible isolation materials are laid at the anchor plate of a steel-concrete combined beam cable-stayed bridge. Background technique [0002] The anchor plate structure is one of the cable and beam anchoring methods of the steel-concrete composite beam cable-stayed bridge. It has the advantages of simple structure, simple and clear force transmission path, clear stress state of the anchorage area, convenient construction, and convenient cable maintenance and replacement. . The application of the cable-beam anchorage method of the anchor-stayed plate in the steel-concrete composite beam cable-stayed bridge is favored by engineers, and the anchor-stayed plate-type cable-beam anchorage structure is widely used. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D19/10E01D19/08E01D11/04
Inventor 周水兴田维锋张敏
Owner CHONGQING JIAOTONG UNIVERSITY