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Anti-corrosion reinforcing structure for column

A technology for strengthening structures and columns, which is applied in building construction, building maintenance, construction, etc., can solve problems such as shortened service life, reduced bearing capacity of column structures, and reduced structural durability, so as to achieve high practical value, prolong service life, Possible reduced effect of cracks

Active Publication Date: 2016-11-09
舟山市宏达交通工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that cracks in reinforced concrete columns in the prior art tend to cause internal steel bars to corrode under the erosion of external water, air and salt spray, so that the bearing capacity of the column structure is significantly reduced, and the durability of the structure is reduced, resulting in the use of To solve the problem of shortened service life, provide a column anti-corrosion reinforcement structure, which has the function of automatically filling the cracks after cracks appear, thus greatly extending the service life of the column

Method used

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  • Anti-corrosion reinforcing structure for column
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  • Anti-corrosion reinforcing structure for column

Examples

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Effect test

Embodiment 1

[0024] in figure 1 In the shown embodiment 1, a column anticorrosive reinforcement structure, the column includes concrete and main steel bars 1 arranged in the concrete, and the concrete 2 of the column is provided with a caulking agent release block 3 (see figure 2 image 3 ), the distribution density of the caulk release block near the outer circumference of the cross section of the column is greater than the distribution density of the caulk release block close to the center of the cross section of the column; the caulk release block is a rectangular parallelepiped structure, made of resin material, and the outer peripheral surface of the cuboid is set There is a reticulated structure (not shown in the figure), both ends of the length of the cuboid are provided with stepped structures 6 protruding from the sides of the cuboid, and the inside of the cuboid is provided with a cavity 4; the outer side of the cuboid is provided with easy cracks surrounding the cuboid Slot 7, one...

Embodiment 2

[0026] in Figure 4 In the illustrated embodiment 2, FRP reinforcing ribs 11 are further provided on the outside of the main steel bars of the column, and the FRP reinforcing ribs are fixed on the outside of the stirrups 12 and are arranged in a staggered manner with the main steel bars of the column. The concrete of Example 2 is also mixed with tensile nails 8. The tensile nails are made of high-strength steel, and both ends of the tensile nails are provided with end rings 9 (see Figure 5 ), the ring planes of the end rings at both ends of the tensile studs are perpendicular to each other, and the distribution density of the tensile studs near the outer circumference of the cross section of the column is greater than the distribution density of the tension studs near the center of the cross section of the column. The volume of the caulking agent release block in this embodiment is 5 cubic centimeters, and the filling amount of the crack filler in the caulking agent release bloc...

Embodiment 3

[0028] in Image 6 In the illustrated embodiment 3, the concrete near the column and the outer circumference of the column is infiltrated with non-metallic fibers 10, and the non-metallic fibers are plastic steel fibers, polypropylene fibers or polyacrylonitrile fibers, and the non-metallic tensile fibers The distribution position is located on the outer side of the main steel bar at the outer circumference of the column cross section. The volume of the caulking agent release block of this embodiment is 15 cubic centimeters, the filling volume of the crack filler in the caulking agent release block is 10 ml, the crack filler is an adhesive, and the adhesive has a yellow color. , And the rest is the same as embodiment 1 or embodiment 2.

[0029] The concrete of the column of the present invention is provided with a caulking agent releasing block. The caulking agent releasing block is mixed into the concrete when the column is poured and solidified together with the concrete. When...

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Abstract

The invention discloses an anti-corrosion reinforcing structure for a column. The column comprises concrete and main steel bars arranged in the concrete. Joint mixture releasing blocks are arranged in the concrete of the column and internally provided with cavities, and joint mixtures are packaged in the cavities. When cracks appear in the column, the joint mixture releasing blocks crack, and the cracks are filled with the joint mixtures. By means of the anti-corrosion reinforcing structure, the problem that the service life of a column is shortened due to the fact that internal steel bars are corroded easily after cracks appear in the reinforced concrete column in the prior art is effectively solved; the anti-corrosion reinforcing structure has an automatic crack filling function after cracks appear in the column, meanwhile, the possibility of crack occurrence in the column is greatly lowered through the reinforcing structure, and therefore the service life of the column is greatly prolonged; and the anti-corrosion reinforcing structure has high practical value.

Description

Technical field [0001] The invention relates to the technical field of construction, bridge and port engineering, in particular to an anticorrosive reinforcement structure of reinforced concrete columns. Background technique [0002] At present, ordinary reinforced concrete columns widely used in the field of bridge and port engineering are easy to crack due to the low tensile strength of ordinary concrete materials. The concrete of the columns will also crack and take the form of wider main cracks when the load is much lower than the service load. Excessively large cracks not only affect the rigidity of the column and the normal use of the column structure, but also cause unsafe psychological effects on people. At the same time, for reinforced concrete structural columns in harsh environments, cracks are likely to cause internal steel bars to corrode under external water, air and salt spray corrosion, which significantly reduces the bearing capacity of the column structure, redu...

Claims

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/0203E04G2023/0251
Inventor 徐玮王鹏徐军林王涛红张备屠晓燕
Owner 舟山市宏达交通工程有限责任公司
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