CN209742223U - Local reinforcing apparatus of circular reinforced concrete column - Google Patents

Abstract

The utility model discloses a local reinforcing apparatus for circular reinforced concrete column, which comprises a circular reinforced concrete column, a plurality of steel bars, a circular sleeve, a T-shaped reserved groove and an I-shaped prefabricated component, wherein the steel bars are symmetrically implanted into the circular reinforced concrete column to be reinforced, the circular sleeve wraps the steel bars and the circular reinforced concrete column, steel fiber concrete and inorganic grouting material are arranged in the gap between the circular sleeve and the circular reinforced concrete column, the circular sleeve is formed by combining two half-circular components, in order to enhance the integrity of the circular sleeve, the combination part is connected by a tenon-and-mortise structure consisting of the T-shaped reserved groove and the I-shaped prefabricated component, a plurality of FRP strips are pasted outside the circular sleeve in a spiral mode, compared with the traditional reinforcing mode, the effect of the reinforcing apparatus can not only reduce the consumption of steel, reduce the waste of other resources, but also improve the bearing capacity and the anti-seismic performance of the circular reinforced concrete column, the service life of the reinforced concrete reinforcing plate is prolonged, the reinforced concrete reinforcing plate is simple and convenient to operate, has the advantages of short construction period and low cost, and is suitable for large-scale factory building and building reinforcing work of commercial centers which are not suitable for large-scale disassembly and large-scale construction.

Description

local reinforcing apparatus of circular reinforced concrete column

Technical Field

The utility model relates to a concrete reinforcing apparatus, concretely relates to local reinforcing apparatus of circular reinforced concrete column.

Background

the steel tube high-performance concrete column at the present stage is widely applied to structures such as high-rise and super high-rise buildings, large industrial plants and the like because of the advantages of high strength, small deformation, good ductility and the like, and has the advantages of convenient construction, shortened construction period and reduced manufacturing cost. At present, buildings are often required to be reinforced due to the reasons of building function change, building aging, natural disasters or human factors. The concrete column which is not damaged to a high degree in an earthquake or in the using process and is in a repairable range can be reinforced; or, if necessary, the built reinforced concrete column is subjected to earthquake resistance reinforcement, so that the damage to the column in the earthquake is reduced. At present, in the engineering, the bearing capacity of a structural member is increased by generally adopting methods of enlarging the section of the structural member or sticking a reinforcing material and the like, but the reinforcing methods have the defects of large workload, long construction period and serious material waste, and in addition, the joint workability and the cooperative deformation performance of new and old concrete are poor due to the increase of the section reinforcement. Therefore, a new structure device for reinforcing reinforced concrete is urgently needed.

The invention content is as follows:

Based on the above reason, the utility model provides a local reinforcing apparatus of circular reinforced concrete column under the prerequisite that does not increase with the steel volume to reach and have good cuff effect to original circular reinforced concrete column, improve the bearing capacity of the circular reinforced concrete column of core, convenient construction, reduction of erection time, reduction of material waste moreover.

In order to solve the above problem, the utility model discloses a technical scheme is:

the utility model provides a local reinforcing apparatus of circular reinforced concrete column, includes circular reinforced concrete column, a plurality of bar planting, circular sleeve pipe, T font reservation recess and I shape prefabricated component, bar planting part symmetry is implanted in the circular reinforced concrete column that needs the reinforcement, circular sleeve pipe is with circular reinforced concrete column and bar planting parcel in, and the clearance sets up steel fibre concrete or inorganic grout material between circular sleeve pipe and circular reinforced concrete column.

preferably, the circular sleeve of the local reinforcing device for the circular reinforced concrete column is wrapped with a plurality of FRP (fiber reinforced plastic) strips, and the FRP strips are adhered to the outer wall of the circular sleeve in a spiral mode, wherein the number of the FRP strips is 1-4.

Preferably, the circular sleeve of the local reinforcing device for the circular reinforced concrete column is formed by two half sleeves which are butted, the butted position of the two half sleeves is connected by a tenon-and-mortise structure consisting of two reserved T-shaped grooves and an I-shaped prefabricated component, and the thickness of the circular sleeve is 6-10 mm.

Preferably, the T-shaped reserved groove used for connecting the circular sleeve in the local reinforcing device for the circular reinforced concrete column is smaller than the thickness of the sleeve.

Preferably, the size of the I-shaped prefabricated part used for connecting the circular sleeve in the local reinforcing device for the circular reinforced concrete column is smaller than the thickness of the sleeve.

the utility model has the advantages that:

1. Compared with the circular reinforced concrete column reinforced by the traditional reinforcing mode, the circular reinforced concrete column reinforced by the device has the advantages that the bearing capacity is improved, the anti-seismic performance is enhanced, the service life is prolonged, in addition, the device is convenient to construct, the construction period can be shortened, the use cost is reduced, and the waste of resources is reduced.

2. This device utilizes circular sleeve pipe and twines the FRP strap outward, can reach and have good cuff effect to original circular reinforced concrete column, improves its nuclear core column's bearing capacity, has reduced the quantity of steel moreover.

3. The FRP cloth is fully utilized, the weight is light, the strength is high, the corrosion resistance is high, and the like, the FRP cloth is used for wrapping the circular sleeve, so that the corrosion resistance of the circular sleeve is improved, the sleeve is the circular sleeve, the reason is that the FRP strip has the greatest restriction on the construction of the circular section, and the FRP strip and the circular sleeve can jointly restrict the core concrete column.

4. The circular sleeve can be used as a template for pouring high-performance concrete, and has the advantages of simple operation, convenient construction, cost reduction and high reinforcement reliability.

5. The circular sleeve pipe has the sleeve pipe that the two halves butt joint formed to constitute, and T shape recess is reserved to the sleeve pipe kneck department, cooperates the prefabricated component of I-shaped to constitute tenon fourth of the twelve earthly branches structure connecting sleeve pipe, has improved circular sheathed tube wholeness, and is more convenient when making it use.

6. The novel high-performance concrete has good fluidity, stability, uniformity and compactness by combining the technologies of fiber concrete and self-compacting concrete, and is introduced into a steel pipe high-performance concrete structure for engineering reinforcement.

7. The combined reinforced column integrates the advantages of a steel pipe concrete structure and a section-enlarging reinforcing method, and can greatly improve the bearing capacity and ductility of the original concrete column.

Drawings

FIG. 1 is a schematic cross-sectional view of a circular reinforced concrete column and a reinforcing structure;

FIG. 2 is a schematic diagram of a T-shaped reserved groove reserved in a circular casing;

FIG. 3 is a schematic plan view of an I-shaped prefabricated component;

FIG. 4 is a schematic elevation view of a circular reinforced concrete column and a reinforcing structure;

The steel bar reinforced concrete column is 1-round, the steel bars are 2-embedded, the concrete is 3-4-round, the FRP strip is 5-round, the groove is reserved in a 6-T shape, and the prefabricated component is 7-I-shaped.

Detailed Description

The present invention is illustrated by way of example in the accompanying drawings,

The utility model provides a local reinforcing apparatus of circular reinforced concrete column, including circular reinforced concrete column 1, a plurality of bar planting 2, circular sleeve pipe 4, T font preformed groove 6 and I-shaped prefabricated component 7, its characterized in that: the steel bar planting device is characterized in that the steel bar planting 2 parts are symmetrically implanted into a circular reinforced concrete column 1 to be reinforced, the circular sleeve 4 wraps the circular reinforced concrete column 1 and the steel bar planting 2, steel fiber concrete or inorganic grouting material is arranged in a gap between the circular sleeve 4 and the circular reinforced concrete column 1, and the FRP strip 5 is spirally pasted and wrapped on 1 to 4 layers outside the circular sleeve 4.

The circular sleeve 4 is composed of two half-butted sleeves, the sleeve joint is fixed by a mortise and tenon structure composed of the T-shaped reserved groove 6 and the I-shaped prefabricated part 7, and the thickness of the circular sleeve 4 is 6-10 mm.

The size of the T-shaped reserved groove 6 is smaller than the thickness of the circular sleeve 4.

The size of the I-shaped prefabricated part 7 is smaller than the thickness of the circular sleeve 4.

Adopt the utility model discloses the device is to the local reinforcement method of circular reinforced concrete column do:

a, arranging symmetrical embedded bars 2 at the position of an original circular reinforced concrete column 1 needing to be reinforced;

b, arranging a circular sleeve 4 on the periphery of the circular reinforced concrete column 1, inserting an I-shaped prefabricated part 7 into an I-shaped groove consisting of two T-shaped reserved grooves 6 to fix the I-shaped prefabricated part after the two half sleeves are butted to form the circular sleeve 4, and wrapping the circular reinforced concrete column 1 and the embedded steel bars 2 by the circular sleeve 4;

and c, spirally winding an FRP strip 5 outside the circular sleeve 4, and pouring self-compacting steel fiber concrete or inorganic grouting material between the circular sleeve 4 and the circular reinforced concrete column 1 after the adhesive of the FRP strip 5 is cured.

while the principles and embodiments of this invention have been described in detail using specific examples, it should be understood that various changes and modifications can be made by one skilled in the art without departing from the principles of the invention and these changes and modifications are within the scope of the invention as defined by the appended claims.

Claims (4)

1. the utility model provides a local reinforcing apparatus of circular reinforced concrete column, includes circular reinforced concrete column (1), a plurality of bar planting (2), circular sleeve pipe (4), T font preformed groove (6) and I-shaped prefabricated component (7), its characterized in that: the embedded bars (2) are symmetrically implanted into the circular reinforced concrete column (1) to be reinforced, the circular sleeve (4) wraps the circular reinforced concrete column (1) and the embedded bars (2), and reinforced concrete and inorganic grouting material are arranged between the gap between the circular sleeve (4) and the circular reinforced concrete column (1).

2. A local reinforcement for circular reinforced concrete columns according to claim 1, characterized in that: a plurality of FRP strip layers (5) are pasted outside the round sleeve (4) in a spiral mode, and the number of the layer is 1-4.

3. A local reinforcement for circular reinforced concrete columns according to claim 1, characterized in that: the circular sleeve (4) is composed of a sleeve formed by two halves in butt joint, the joint of the circular sleeve is connected with a mortise and tenon joint structure composed of two reserved T-shaped reserved grooves (6) in the sleeve formed by two halves in butt joint and an I-shaped prefabricated part (7), and the thickness of the circular sleeve (4) is 6-10 mm.

4. a local reinforcement for circular reinforced concrete columns according to claim 1, characterized in that: the size of the two reserved T-shaped reserved grooves (6) and the I-shaped prefabricated part (7) is smaller than the thickness of the circular sleeve (4).