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Bridge component collision damage restoration method

A repair method and bridge technology, which is applied in bridge repair, bridge, bridge reinforcement, etc., can solve problems that endanger the normal operation and safe use of bridge structures, reduce the strength of reinforced concrete, increase structural deformation, etc., and achieve good chemical corrosion resistance And water absorption, durability, and the effect of improving mechanical strength

Active Publication Date: 2016-12-21
河北省高速公路青银管理处
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Concrete structures or steel-concrete structures are famous for their durability, but they are often damaged to varying degrees during the application process due to various factors, including the influence of construction, unreasonable factors in design, and later vehicle use, etc. Various diseases
[0003] Although the surface defects of reinforced concrete bridge structures will not cause major safety accidents such as collapse in a short period of time, it does not mean that the appearance and surface defects are not harmful. Various bridge accident surfaces, some appearance and surface damage will gradually lead to construction The internal development of the bridge has caused a series of hazards, such as the increase in structural deformation and the decrease in the strength of reinforced concrete, which endanger the normal operation and safe use of the bridge structure. more and more attention

Method used

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Embodiment Construction

[0029] Below in conjunction with embodiment, the present invention is described in further detail:

[0030] A method for repairing damage to bridge components, comprising the following steps:

[0031] Step A. The bridge maintenance engineer carefully inspects the damaged parts to determine whether the impact damages the stressed steel bars or steel strands, and whether it affects the bridge structure or stress. If the impact only causes surface damage, the repair operation can be implemented;

[0032] Step B, chisel away the damaged and loose concrete at the damaged part until the hard concrete is exposed to form a repair area, the cross section of the repair area is quadrilateral, and sprinkle water to fully wet the repair area, and high-speed water jetting method / manual chiseling method or Pneumatic chisel removal. For shallow or small area damage, use hand tools such as hammer / chisel to chisel directly; for defects with large damaged area and a certain depth, use pneumatic...

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Abstract

The invention discloses a bridge component collision damage restoration method, and belongs to the technical field of bridge restoration. The method comprises the following steps that a collision damage position is carefully inspected; if the collision only occurs on the surface, a damage party can perform repair operation; then, broken and loose concrete in the collision damage position can be chiseled away; deformation or fracture steel bars and steel twisted lines are connected and are subjected to anti-rust treatment; then, epoxy resin glue liquid used for glue bonding is brushed and coated on the surfaces of the steel bars and steel twisted lines; after bubbles of the epoxy resin glue liquid to be brushed and coated are eliminated, a mixture of epoxy mortar and high-intensity concrete can be gradually and compactly loaded into the repair region in a small amount and multilayer mode; leveling is performed; then, after the initial set of the mixture, a steel plate in the proper shape is cut according to the fold line length of the damaged edge and corners of the collision position; the collision damage position is subjected to corner covering treatment; then, the steel plate surface is subjected to paint brushing anti-rust treatment; warning paint is brushed and coated. The method is used for performing fast, effective and practical restoration on a bridge.

Description

technical field [0001] The invention relates to a method for repairing damage to bridge components, belonging to the technical field of bridge repairing. Background technique [0002] Concrete structures or steel concrete structures are known for their durability, but they are often damaged to varying degrees in the application process due to various factors, including the influence of construction, unreasonable factors in design, and later vehicle use, etc. various diseases. [0003] Although the surface defects of reinforced concrete bridge structures will not cause major safety accidents such as collapse in a short period of time, it does not mean that the appearance and surface defects do not cause any harm. Various bridge accident surfaces, some appearance and surface damage will gradually increase to the construction The internal development of the bridge has caused a series of hazards, such as the increase of its structural deformation and the reduction of the streng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 常军辉王树信师慧赵芳孙永冯冲高燕胡连华刘铁柴亚叶永迪尹学博张士英张莺飞张学智李昆张丽何江静张楠李默杨英媛贾莎莎蔡玉文杨芳刘婷婷
Owner 河北省高速公路青银管理处
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