Maintenance and reinforcement method for road expansion joint

An expansion joint and road technology, applied in bridge maintenance, bridge reinforcement, bridge parts, etc., can solve the problems of weak anchorage of steel plate expansion joints, freezing, corrosion, and inability to deform freely, etc., to reduce operating costs, Avoid dust collection and ensure the effect of flatness

Inactive Publication Date: 2021-11-19
杜春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the expansion joints currently in use, such as zinc-iron sheet expansion joints are prone to aging and falling off, and cannot be freely deformed. The anchorage of steel plate expansion joints is not strong, and the main beam is prone to freezing and corrosion. It is necessary to provide a road expansion joint maintenance and reinforcement method

Method used

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  • Maintenance and reinforcement method for road expansion joint
  • Maintenance and reinforcement method for road expansion joint
  • Maintenance and reinforcement method for road expansion joint

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0032] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0033] Such as Figure 1-2 As shown, the present invention provides a method for repairing and reinforcing road expansion joints, comprising the steps of:

[0034] Step 1: Set up warning signs to stop the traffic flow on the expansion joint maintenance section.

[0035] Step 2. The top structure of the expansion joint is removed, and the pavement structures on both sides of the expansion joint are chiseled away by mechanical equipment until the entire original device in the expansion joint is exposed.

[0036] Step 3, remove the original device in the expansion joint, and remove ...

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Abstract

The invention discloses a maintenance and reinforcement method for road expansion joint. The method comprises the following steps that step 1, stopping traffic flow; step 2, dismantling an original device in the expansion joint; step 3, reserving and fastening the anchoring part; step 4, arranging an elastic connecting plate at the bottom end of the expansion joint; step 5, arranging a first fixing part and a second fixing part which are connected with the anchoring part in the expansion joint, and arranging the X-shaped plate between the first fixing part and the second fixing part; step 6, arranging an elastic supporting plate between the first fixing part and the second fixing part, and arranging a template on the elastic supporting plate; step 7, pouring cement concrete on the outer side of the formwork, and laying a fixing pressing plate and a magnetic cover plate after curing; and step 8, symmetrically arranging movable push plates at the two ends of the magnetic cover plate, and arranging dust collection systems at the upper ends of the movable push plates. An original device is eliminated, maintenance and reinforcement are fundamentally carried out, the later maintenance frequency is reduced, the trouble of multiple reinforcement is avoided, and the deformation stability of the expansion joint is guaranteed.

Description

technical field [0001] The invention relates to the technical field of road expansion joint reinforcement, in particular to a maintenance and reinforcement method for road expansion joints. Background technique [0002] Road expansion joints refer to expansion joints that are usually set between two girder ends, between girder ends and abutment or at the hinged position of the bridge in order to meet the deformation requirements of the bridge deck, that is, to prevent thermal expansion and contraction due to changes in the weather. It has an impact on the structure, so in order to prevent the quality of the structure from being affected and at the same time prevent cracks, expansion joints are set; generally speaking, expansion joints should have good durability, good water resistance, and simple maintenance. Among the expansion joints currently in use, such as zinc-iron sheet expansion joints are prone to aging and falling off, and cannot be freely deformed. The anchorage o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01D19/06E01D101/30E01D101/26
CPCE01D19/06E01D22/00E01D19/065E01D2101/30E01D2101/26
Inventor 不公告发明人
Owner 杜春
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