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Assembled metal bridge structure

A bridge structure and assembly technology, applied in the erection/assembly of bridges, bridges, bridge parts, etc., can solve the problems of potential safety hazards, inconvenient multi-layer erection, easy to produce fractures, etc., to save installation costs and labor costs, and to facilitate The effect of multi-layer erection and installation is fast and convenient

Inactive Publication Date: 2018-11-13
张跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure has the disadvantages of self-heaviness, long construction period, short life, and potential safety hazards, because the mechanical properties of concrete are greatly reduced after being affected by the environment, and it is easy to break, and the service life of concrete cannot be predicted and calculated, and the safety factor is very low.
[0005] The existing bridge body is self-heavy, which is not convenient for multi-layer erection, and the foundation load is self-heavy, which greatly increases the cost

Method used

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  • Assembled metal bridge structure
  • Assembled metal bridge structure
  • Assembled metal bridge structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Such as Figure 1~Figure 4 Shown: an assembled metal bridge structure, including pier 1, main girder 2, secondary girder 3 and road slab 4, pier 1 is fixedly connected with main girder shaft 5 and expansion seat 6 through bending plate 12 respectively, and the connection method can be Is welding or screwing, etc. The main beam 2, the secondary beam 3 and the road slab 4 are all factory prefabricated modular structures.

[0067] At least two main girder seats 21 are connected to the main girder 2, at least two pier beam seats 11 are connected to the pier 1, and the main girder seats 21, pier beam seats 11 and main girder shaft 5 are all sleeve structures, when the pier 1 When connecting with a main beam 2, the adjacent pier beam seats 11 are arranged at intervals, and the main beam seats 21 are placed between the adjacent pier beam seats 11, that is, the pier beam seats 11 and the main beam seats 21 are arranged alternately, and then Then the main beam shaft 5 is inser...

Embodiment 2

[0074] Such as figure 1 and Figure 5 Shown: on the basis of embodiment 1, the secondary beam 3 is connected with the main beam 2, for example: the screw seat 31 is preset on the secondary beam 3, the screw sleeve 22 is preset on the main beam 2, and the main beam 3 is fixedly connected with the secondary beam 3 through the bolt 32, the screw sleeve 22, and the screw seat 31.

Embodiment 3

[0076] On the basis of Embodiment 2, the road slab is connected to the secondary beam, and the connection method can be welding or screwing.

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PUM

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Abstract

The invention relates to an assembled metal bridge structure. The assembled metal bridge structure comprises a pier, a main beam, a secondary beam and a road board, wherein the main beam, the secondary beam and the road board are prefabricated metal boards; and the pier is movably connected with the main beam through a connecting part. The assembled metal bridge structure has the beneficial effects that on one hand, the steering of the bridge can be realized; on the other hand, the swelling stress of the main beam is released; and the structure is completely prefabricated in a factory and canbe rapidly and conveniently mounted on site, so that the mounting cost and the labor cost are greatly saved.

Description

technical field [0001] The invention relates to a bridge structure, in particular to an assembled metal bridge structure. Background technique [0002] Existing bridges are basically formed by splicing cast-in-place components, or a combination of prefabricated components and cast-in-place components. They are not 100% prefabricated, resulting in slow installation speed, time-consuming and laborious, and high installation and labor costs. [0003] The pier and main girder of the existing bridge are either fixedly connected or flexibly connected to eliminate the stress caused by thermal expansion and contraction, but they cannot be connected by rotation, that is, the steering of the bridge body cannot be realized. Once the bridge body needs to be turned in the future to meet To meet the traffic demand, part of the bridge body needs to be demolished and rebuilt, which is costly, time-consuming and labor-intensive. [0004] Existing bridge bodies all adopt concrete prefabricat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D1/00E01D19/00E01D19/02E01D19/06E01D21/00
CPCE01D1/00E01D19/00E01D19/02E01D19/06E01D21/00
Inventor 张跃
Owner 张跃