CN217079384U - Reinforced concrete column reinforcing structure based on phosphate cement-based material - Google Patents
Reinforced concrete column reinforcing structure based on phosphate cement-based material Download PDFInfo
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- CN217079384U CN217079384U CN202220199966.2U CN202220199966U CN217079384U CN 217079384 U CN217079384 U CN 217079384U CN 202220199966 U CN202220199966 U CN 202220199966U CN 217079384 U CN217079384 U CN 217079384U
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Abstract
The utility model discloses a reinforced concrete cylinder reinforced structure based on phosphate cement-based material, including the steel pipe, coaxial nested reinforced concrete column in the steel pipe, fill fibre modified phosphate cement-based material grout blanket between steel pipe and the reinforced concrete column, steel pipe inner wall welds the stiffening plate that extends to filling fibre modified phosphate cement-based material grout blanket, welds the dowel steel that extends to in the reinforced concrete column on the stiffening plate; the fiber modified phosphate cement-based material grouting layer is filled between the reinforced concrete column and the steel pipe, so that the sectional area of the reinforced concrete column reinforcing structure is increased, and the bearing capacity of the column is improved through the stiffening plate and the force transmission plate.
Description
Technical Field
The utility model belongs to the technical field of building structure engineering, concretely relates to reinforced concrete cylinder reinforced structure based on phosphate cement base material.
Background
At present, in engineering structure application, detection finds that insufficient concrete strength in the structure can often reduce the bearing capacity of the structure, so that the structure is unstable in the service period, and because the structure is integrally replaced, huge consumption of manpower and material resources is caused, and negative effects are brought to the society to a certain extent, so that maintenance and reinforcement become key points of concern of people, and the structure is reinforced through detection and identification, so that the requirements of people on the safety, usability and durability of the structure can be continuously met.
The common treatment method is to perform local replacement, overall replacement, section increase and the like on the concrete in the reinforced concrete column, so that the problems of poor bonding capability of new and old concrete and poor overall stability due to insufficient bonding force of the new concrete and a steel pipe often occur in actual service, and the normal use of the structure is seriously influenced after the steel pipe reinforced structure is corroded in long-term service.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reinforced concrete cylinder reinforced structure based on phosphate cement base material through filling the modified phosphate cement base material grout blanket of fibre between reinforced concrete column and steel pipe, increases reinforced concrete cylinder reinforced structure sectional area, improves the cylinder bearing capacity through stiffening plate, biography power board.
The utility model discloses the technical scheme who adopts is, reinforced concrete cylinder reinforced structure based on phosphate cement base material, including the steel pipe, coaxial nested reinforced concrete column in the steel pipe, the modified phosphate cement base material grout blanket of filling fibre between steel pipe and the reinforced concrete column, steel pipe inner wall welding extends to the stiffening plate on the modified phosphate cement base material grout blanket of filling fibre, welds the dowel steel that extends to in the reinforced concrete column on the stiffening plate.
The utility model discloses a characteristics still lie in:
FRP cloth is bonded on the outer wall of the steel pipe.
The section of the stiffening plate along the radial direction of the steel pipe is Y-shaped.
The section of the stiffening plate along the radial direction of the steel pipe is T-shaped.
The cross section of the stiffening plate along the radial direction of the steel pipe is corrugated.
The dowel bar is L-shaped along the radial section of the steel pipe.
The length of the dowel bar extending into the reinforced concrete column is not less than 10 cm.
The inner wall of the steel pipe is provided with stiffening ribs.
The utility model has the advantages that:
the reinforced concrete column reinforcing structure based on the phosphate cement-based material increases the sectional area of the reinforced concrete column reinforcing structure by filling the fiber modified phosphate cement-based material grouting layer between the reinforced concrete column and the steel pipe, and improves the bearing capacity of the column through the stiffening plate and the force transmission plate; and the anti-cutting performance of the cylinder is greatly improved, the thickness of the inner wall of the steel pipe is reduced, the outer wall of the steel pipe is bonded with the fiber composite material, the corrosion resistance of the steel pipe is obviously enhanced, and the radial deformation of the steel pipe is prevented. The plasticity and toughness of the cylinder are improved, and the use of steel is reduced.
Drawings
FIG. 1 is a three-dimensional structure diagram of a reinforced concrete column reinforcing structure based on phosphate cement-based materials according to the present invention;
FIG. 2 is a schematic structural view of an embodiment of the reinforced concrete column reinforcing structure based on phosphate cement-based material according to the present invention;
FIG. 3 is a schematic structural view of another embodiment of the reinforced concrete column reinforcing structure based on phosphate cement-based material according to the present invention;
FIG. 4 is a schematic structural view of a third embodiment of a reinforced concrete column reinforcing structure based on phosphate cement-based materials according to the present invention;
fig. 5 is a schematic diagram of the reinforced concrete column reinforcing structure reinforcing longitudinal section structure based on phosphate cement-based materials of the present invention.
In the figure, 1, a reinforced concrete column, 2, a dowel bar, 3, a fiber modified phosphate cement-based material grouting layer, 4, a stiffening plate, 5, a steel pipe and 6, FRP cloth.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses a reinforced concrete cylinder reinforced structure based on phosphate cement base material, as shown in figure 1, including steel pipe 5, the inner wall of steel pipe 5 sets up stiffening rib, coaxial nested reinforced concrete column 1 in the steel pipe 5, fill fibre modified phosphate cement base material grouting layer 3 between steel pipe 5 and reinforced concrete column 1, can replace the less sectional area that adopts among the prior art, steel pipe 5 inner wall welds and extends to filling fibre modified phosphate cement base material grouting layer 3's stiffening plate 4, can increase the bonding effect of steel pipe 5 and fibre modified phosphate cement base material grouting layer 3, the cylinder bearing capacity is improved, and the anti cutting performance of cylinder is greatly improved, weld the dowel steel 2 that extends to in reinforced concrete column 1 on the stiffening plate 4, dowel steel 2 is the L shape along the radial cross-section of steel pipe 5, the length that dowel steel 2 extends to in reinforced concrete column 1 is not less than 10cm, the dowel bar 2 can enhance the bonding effect of the reinforced concrete column 1 and the fiber modified phosphate cement-based material grouting layer 3; the FRP cloth 6 is bonded on the outer wall of the steel pipe 5, the corrosion resistance of the steel pipe is obviously enhanced, and when the steel pipe 5 is subjected to external force along the radial direction of the steel pipe 5, the stiffening plate 4 and the fiber modified phosphate cement-based material grouting layer 3 act together and are restrained by bonded fiber composite materials, so that the steel pipe 5 can be effectively prevented from deforming along the radial direction.
Example 1
The stiffener plate 4 has a T-shaped cross section in the radial direction of the steel pipe 5.
Example 2
The stiffening plates 4 have a corrugated cross section in the radial direction of the steel pipe 5.
Example 3
The stiffener 4 has a Y-shaped cross section along the radial direction of the steel pipe 5.
The working principle of the reinforced concrete cylinder reinforcing structure based on the phosphate cement-based material of the utility model is as follows:
the inner wall of a steel pipe 5 is provided with stiffening ribs, a reinforced concrete column 1 is coaxially nested in the steel pipe 5, a fiber modified phosphate cement-based material grouting layer 3 is filled between the steel pipe 5 and the reinforced concrete column 1, an outer sleeve steel pipe is superposed with the geometric center of the section of the reinforced concrete column, the shape of the outer sleeve steel pipe is consistent with that of the section of the column, or the outer sleeve steel pipe is square or round, and the steel material of the outer sleeve steel pipe is common steel or high-strength steel; the smaller cross-sectional area used in the prior art can be replaced.
The stiffening plate 4 is connected between the steel pipe 5 and the fiber modified phosphate cement-based material grouting layer 3, the radial section of the stiffening plate 4 is in other irregular shapes such as T-shaped, corrugated steel plates and sawtooth steel plates, the cohesiveness between the steel pipe 5 and the fiber modified phosphate cement-based material grouting layer 3 can be enhanced, the length of the stiffening rib 4 in the height direction of the steel pipe is consistent with the height of the steel pipe, and the anti-shear performance of the column body is greatly improved.
The dowel bar 2 extending into the reinforced concrete column 1 is welded on the stiffening plate 4, the dowel bar 2 is a steel bar, the exposed section is folded into an L shape, the dowel bar 2 can enhance the bonding effect of the reinforced concrete column 1 and the fiber modified phosphate cement-based material grouting layer 3, the length of the dowel bar 2 extending into the reinforced concrete column 1 is not less than 10cm, and the bonding strength of the column body and the dowel bar is ensured.
The FRP cloth 6 wraps the outer wall of the steel pipe 5, the lap joint length is not less than one fourth of the circumference of the section of the bottom of the steel pipe 5, and the combined action of the stiffening plate 4, the dowel bar 2 and the fiber modified phosphate cement-based material grouting layer 3 and the restraint of the bonded FRP cloth 6 can effectively prevent the steel pipe from deforming along the radial direction.
In this way, the reinforced concrete column reinforcing structure based on the phosphate cement-based material increases the sectional area of the reinforced concrete column reinforcing structure by filling the fiber modified phosphate cement-based material grouting layer between the reinforced concrete column and the steel pipe, and improves the bearing capacity of the column through the stiffening plate and the force transmission plate; and the anti-cutting performance of the cylinder is greatly improved, the thickness of the inner wall of the steel pipe is reduced, the outer wall of the steel pipe is bonded with the fiber composite material, the corrosion resistance of the steel pipe is obviously enhanced, and the radial deformation of the steel pipe is prevented. The plasticity and toughness of the cylinder are improved, and the use of steel is reduced.
Claims (8)
1. The reinforced concrete column reinforcing structure based on the phosphate cement-based material comprises a steel pipe (5), wherein a reinforced concrete column (1) is coaxially nested in the steel pipe (5), and a fiber modified phosphate cement-based material grouting layer (3) is filled between the steel pipe (5) and the reinforced concrete column (1), and is characterized in that a reinforcing plate (4) which is filled with the fiber modified phosphate cement-based material grouting layer (3) is welded on the inner wall of the steel pipe (5), and a dowel bar (2) which extends into the reinforced concrete column (1) is welded on the reinforcing plate (4).
2. A reinforced concrete column reinforcing structure based on phosphate cement-based materials according to claim 1, characterized in that the outer wall of the steel pipe (5) is bonded with FRP cloth (6).
3. A reinforced concrete column reinforcing structure based on phosphate cement-based materials according to claim 1, characterized in that the stiffening plates (4) are Y-shaped in cross section in the radial direction of the steel pipes (5).
4. A reinforced concrete column reinforcing structure based on phosphate cement-based materials according to claim 1, characterized in that the stiffening plates (4) are T-shaped in cross section in the radial direction of the steel pipes (5).
5. A reinforced concrete column reinforcing structure based on phosphate cement-based materials according to claim 1, characterized in that the stiffening plates (4) are corrugated in cross section in the radial direction of the steel pipes (5).
6. Reinforced concrete column reinforcement structure based on phosphate cement-based materials, according to claim 1, characterized in that the dowel bar (2) is L-shaped in radial section along the steel pipe (5).
7. Reinforced concrete column reinforcement structure based on phosphate cement-based materials, according to claim 1, characterized in that the length of the dowel (2) extending into the column of reinforced concrete (1) is not less than 10 cm.
8. A reinforced concrete column reinforcing structure based on phosphate cement-based materials according to claim 1, characterized in that the inner wall of the steel pipe (5) is provided with stiffening ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220199966.2U CN217079384U (en) | 2022-01-25 | 2022-01-25 | Reinforced concrete column reinforcing structure based on phosphate cement-based material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220199966.2U CN217079384U (en) | 2022-01-25 | 2022-01-25 | Reinforced concrete column reinforcing structure based on phosphate cement-based material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217079384U true CN217079384U (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220199966.2U Active CN217079384U (en) | 2022-01-25 | 2022-01-25 | Reinforced concrete column reinforcing structure based on phosphate cement-based material |
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| CN (1) | CN217079384U (en) |
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2022
- 2022-01-25 CN CN202220199966.2U patent/CN217079384U/en active Active
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