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Bridge expansion joint structure

A technology of expansion joints and bridges, applied in the field of bridge expansion joints, can solve problems such as difficulty in long-term use, and achieve the effects of reducing the impact of urban traffic, reducing beam damage, and increasing strength quickly

Inactive Publication Date: 2017-08-25
北京特希达交通勘察设计院有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing bridge expansion joint structure and the repaired bridge expansion joint structure are difficult to meet the requirements of long-term use

Method used

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  • Bridge expansion joint structure

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The object of the present invention is to provide a novel bridge expansion joint structure, which can be used not only for newly built bridge expansion joint structures, but also for repairing bridge expansion joint structures. By adopting this structure, the following objectives can be achieved:

[0026] 1) Solve the problem that traditional cement concrete is not impact-resistant;

[0027] 2) Shorten the traffic closure time.

[0028] 3) Applied in the repair of bridge expansion joints to reduce damage to the original structure.

[0029] In a specific embodiment, the present invention provides a bridge expansion joint structure. See figure 1 , which shows the bridge expansion joint structure provided by the embodiment o...

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Abstract

The invention discloses a bridge expansion joint structure, which is provided with an expansion joint anchorage area and an anchorage enlargement area; the expansion joint anchorage area includes: a steel bar protective layer arranged on the top of the main girder, and a steel bar protective layer formed after pouring and solidification The first epoxy resin concrete layer between the ground and the ground; the anchorage increase area is the area formed by extending outward from the expansion joint anchorage area, and the beam top planting reinforcement is installed in the anchorage increase area, and it is formed on the top of the main beam beam after pouring and solidification to the second layer of epoxy concrete between the ground. The bridge expansion joint structure provided by the invention has excellent impact resistance, long service life, little impact on urban traffic, is particularly suitable for repairing bridge expansion joint structures, and has little damage to beam bodies.

Description

technical field [0001] The invention relates to the technical field of bridge expansion joints, in particular to a bridge expansion joint structure. Background technique [0002] The expansion joint device is one of the important components of the bridge structure. It is of great significance to ensure the stability of the bridge structure and ensure the safety of driving by timely maintenance and repair work during its use and maintaining the overall integrity of the expansion joint. [0003] The existing bridge expansion joint devices have a short service life and need to be repaired regularly. In the repair construction of bridge expansion joints, the concrete in the anchorage area is generally chiseled off, and then the expansion joint steel is reinstalled, the holes are drilled and the reinforcement is planted, and then fiber concrete is poured. way. [0004] During the implementation of this plan, it is necessary to use high-power pneumatic picks to chisel out the ori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06
CPCE01D19/06
Inventor 刘晓晨纪国睦罗向荣蔡硕果刘文明袁媛聂春婧杨志昌路锦昌高鹏马海忠张欣男张娜
Owner 北京特希达交通勘察设计院有限公司
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