CN219219549U - Aluminum pipe concrete column - Google Patents

Abstract

The utility model provides an aluminum pipe concrete column, includes the aluminium structure of locating the surface, presss from both sides in the steel reinforcement cage of middle level and fills the concrete in, the aluminium structure is the tubular structure of being made by aluminium, including energy-absorbing layer and transition layer, the energy-absorbing layer is cellular, wraps up outside the transition layer, and the transition layer is formed by the concatenation of a plurality of long aluminium strips that the cross section is triangle-shaped with triangle-shaped one positive one negative arrangement form, sets up many archs between transition layer and the concrete. The aluminum structure arranged on the outer surface of the reinforced concrete column has a limiting and protecting effect on the periphery of the side surface of the reinforced concrete column, so that the concrete column is in a laterally pressed state, the compressive strength of the whole concrete column is improved by times, the reinforced concrete column has better corrosion resistance and low temperature resistance, and most of impact capacity can be absorbed under the action of external lateral impact load, and the impact capacity is effectively prevented from entering the inside of the aluminum tube concrete column to cause concrete damage; the triangular arrangement of the transition layers can further absorb the residual impact energy.

Description

Aluminum pipe concrete column

Technical Field

The utility model relates to the field of civil construction engineering application, in particular to an aluminum pipe concrete column.

Background

With the continuous development and progress of the civil engineering field, the requirements of modern buildings on safety performance are continuously improved, and the column is used as one of important building members, and is mainly subjected to the action of pressure transmitted by an upper structure and bending moment caused by eccentric load in engineering. The existing column is generally a reinforced concrete column, and the following defects mainly exist: 1. bending resistance and impact resistance are poor; 2. the energy absorption capability is poor, in structures such as bridges, pedestrian overpasses and the like, the pillars need to be exposed, and in the normal service process of the pillars, accidental accidents such as vehicle impact, ship impact and the like can occur, so that great influence is caused.

The utility model patent application with publication number of CN108842966A provides a corrugated aluminum alloy pipe concrete composite column, the composition of the corrugated aluminum alloy pipe concrete composite column comprises a corrugated aluminum alloy pipe and concrete filled in the corrugated aluminum alloy pipe concrete composite column, the concrete can be plain concrete or high-performance concrete, the cross section of the concrete can be round, square, rectangular or other shapes, the cross section centroid of a reinforcement cage in the column coincides with the cross section centroid of the corrugated aluminum alloy pipe, and the strength and the ductility of the concrete column are improved to a certain extent, however, the utility model patent application also has the following defects: 1. the corrosion resistance of aluminum alloys is poor, so that the patent application is difficult to adapt to corrosive environments; 2. if the utility model patent application is internally filled with high-performance concrete, the manufacturing cost is high; 3. the cross section centroid of the reinforcement cage in the column of the patent application coincides with the cross section centroid of the corrugated aluminum alloy pipe, so that the column is troublesome to manufacture, the corrugated pipe belongs to an irregular pipe shape, if the centroid position of the corrugated pipe needs to be determined, a high-precision instrument is needed to manufacture, and meanwhile, during construction, the construction quality of workers is uneven, the reinforcement cage can be hardly ensured to coincide with the cross section centroid of the corrugated aluminum alloy pipe, and therefore, the patent product is difficult to realize in implementation.

The utility model patent application with publication number of CN110804971A provides a highway anti-collision column device and a construction method thereof, the highway anti-collision column device is structurally composed of an inner steel pipe and foam concrete poured into the inner steel pipe, an energy absorption layer is wrapped outside the inner steel pipe, the energy absorption layer is provided with an outer steel pipe, and the energy absorption layer is polyurethane honeycomb aluminum and can absorb and dissipate part of kinetic energy so as to reduce the collision force born by a guard rail during collision, however, the utility model has the following defects: 1. the utility model adds the energy absorbing layer and the steel pipe jacket outside the steel pipe concrete column, which can greatly improve the strength of the column, but also greatly improve the manufacturing cost of the column; 2. the steel with poor corrosion resistance is used as an outer protection structure, the arrangement of the protection layer is not reasonable enough, the durability and strength of the product are reduced, the phenomenon of external corrosion is very likely to happen after the product is put into use, even if a polyurea material is sprayed outside the steel pipe, the corrosion still can be caused after the paint is aged or damaged, the corrosion can spread, the bad treatment can be aggravated along with the time, and certain influence is caused to the engineering; 3. the steel pipe structures are arranged on the inner layer and the outer layer of the utility model, so that the substantial effect of the energy absorption layer is not obvious, and because the strength of the steel is large, the outer layer of the steel generally cannot deform after the column is impacted, so that the deformation condition of the inner part cannot be predicted from the appearance, and the safety performance of the column is difficult to evaluate.

Disclosure of Invention

The utility model aims to provide an aluminum pipe concrete column which has high strength and good corrosion resistance and can adapt to complex environments so as to overcome the defects of the prior art.

The technical scheme adopted by the utility model is as follows: the aluminum pipe concrete column comprises an aluminum structure arranged on the outer surface, a reinforcement cage clamped in the middle layer and concrete filled in the middle layer, wherein the aluminum structure is a tubular structure made of aluminum.

The further technical scheme is as follows: the aluminum structure comprises an energy absorption layer and a transition layer, wherein the energy absorption layer is honeycomb-shaped and wraps the transition layer, and the transition layer is formed by splicing a plurality of long aluminum strips with triangular cross sections in a triangle-shaped positive-negative arrangement mode, so that a sheet-shaped structure is formed and wraps the outer surface of the concrete.

Further: a plurality of bulges are arranged between the transition layer and the concrete, and the bulges are vertical strip structures made of aluminum.

Further: the reinforcement cage is arranged between the transition layer and the concrete and comprises spiral stirrups and longitudinal ribs, and the longitudinal ribs are arranged between two adjacent bulges.

Further: the thickness of the concrete is 7-12 times of the thickness of the energy absorption layer and the transition layer.

Further: the energy absorption layer and the transition layer and the bulge are adhered by a strong metal adhesive.

By adopting the technical scheme, the aluminum pipe concrete column has the following beneficial effects:

1. according to the utility model, the aluminum structure is arranged on the outer surface of the concrete, the concrete is wrapped, the limit protection effect is realized on the periphery of the side surface of the reinforced concrete, the concrete is in a lateral compression state, so that the compressive strength of the whole concrete column is doubled, and the aluminum structure is a typical energy absorbing member, so that the aluminum pipe has good deformation and energy absorbing capacity, and the aluminum pipe has better corrosion resistance and low temperature resistance than the steel pipe concrete column, and meanwhile, the aluminum structure has light weight, low manufacturing cost and high material recycling rate, and is an environment-friendly structure bearing member form with great popularization and application prospects, so that the aluminum pipe also has good market popularization and application value;

2. because the aluminum structure comprises the energy absorption layer and the transition layer, the energy absorption layer is honeycomb-shaped, and can absorb most of impact capacity under the action of external lateral impact load, so that the impact capacity is effectively prevented from entering the inside of the aluminum pipe concrete column to cause concrete damage; the cross section of the transition layer adopts a triangle arrangement mode, so that the transition layer has better structural stability, and further absorbs residual impact energy transmitted by the energy absorption layer, thereby playing a role in buffering the concrete of the inner protection layer and jointly improving the anti-collision performance of the concrete column;

3. because the transition layer is internally provided with the plurality of bulges, a circle of gear shape is formed between the concrete and the reinforced concrete, the contact area between the reinforced concrete and the concrete is increased, the reinforced concrete is not easy to deform and move, the biting force between the reinforced concrete and the reinforced concrete is greatly enhanced, and the integrity is improved.

The technical features of an aluminum pipe concrete column according to the present utility model will be further described with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic view (semi-sectional) of the overall structure of an aluminum pipe concrete column according to the present utility model;

FIG. 2 is a schematic diagram showing the connection structure of aluminum structure and protrusions of an aluminum pipe concrete column according to the present utility model;

FIG. 3 is a schematic view of a partial structure of an energy absorbing layer of an aluminum tube concrete column according to the present utility model;

FIG. 4 is a schematic cross-sectional view of an aluminum tube concrete column according to the present utility model;

fig. 5 is an enlarged view of a portion a of fig. 4.

In the figure:

1-aluminum structure, 11-energy absorption layer, 12-transition layer, 2-reinforcement cage, 3-concrete and 4-bulge.

Detailed Description

Example 1

An aluminum pipe concrete column, as shown in figure 1, comprises an aluminum structure 1 arranged on the outer surface, a reinforcement cage 2 clamped in the middle layer and concrete 3 filled in, wherein the aluminum structure 1 is a tubular structure made of aluminum, and the compressive strength of the concrete is high, but the bending resistance is very weak, and the aluminum structure has better energy absorbing capacity (namely the energy absorbing capacity), so that the aluminum structure is arranged on the outer layer of the reinforced concrete, on one hand, the space limitation is arranged around the side surface of the reinforced concrete, and on the other hand, the concrete is in a state of being laterally pressed, and the compressive strength of the whole concrete column can be doubled.

As shown in fig. 4 and 5, the aluminum structure 1 includes an energy absorbing layer 11 and a transition layer 12, both made of aluminum, the inner surface of the energy absorbing layer 11 is honeycomb (see fig. 3), and is wrapped outside the transition layer 12, so that most of the impact capacity can be absorbed under the action of external lateral impact load, the impact capacity can be effectively prevented from entering the inside of the aluminum pipe concrete column, and concrete damage is caused, the transition layer 12 is formed by splicing a plurality of long aluminum strips with triangular cross sections in a triangle-shaped positive-negative arrangement mode along the longitudinal direction, so that a sheet-shaped structure is wrapped on the outer surface of the concrete 3, the triangular arrangement mode enables the transition layer to have better structural stability, residual impact energy transmitted by the energy absorbing layer can be further absorbed, a buffer effect is achieved on protecting the inner layer concrete, and the thickness of the concrete 3 is 7 times or 8 times or 12 times that of the energy absorbing layer 11 and the transition layer 12.

A plurality of bulges 4 (see fig. 2) are uniformly arranged between the transition layer 12 and the concrete 3 in a circle, the bulges 4 are of a vertical strip-shaped structure made of aluminum, a circle of gear-shaped structure is formed between the concrete and the aluminum structure due to the arrangement of the bulges, see fig. 4, the biting force between the aluminum structure and the reinforced concrete is further enhanced, the integrity is improved, and the energy absorbing layer 11 and the transition layer 12 and the bulges 4 are all adhered by a strong metal adhesive.

The reinforcement cage 2 is arranged between the transition layer 12 and the concrete 3 and comprises spiral stirrups and longitudinal ribs, and the longitudinal ribs are arranged between two adjacent bulges 4.

Manufacturing steps

(1) Determining the size of the column according to actual engineering, further determining the thickness sizes of the energy absorption layer and the transition layer, and then manufacturing an aluminum pipe concrete column;

(2) assembling the energy absorption layer and the transition layer, wherein the honeycomb structure of the energy absorption layer and the triangular sheet structure of the transition layer are manufactured in a factory, and the assembly is completed between the energy absorption layer 11 and the transition layer 12 and between the transition layer 12 and the bulge 4 through a strong metal adhesive;

(3) placing the reinforcement cage, and placing the position of the longitudinal ribs between two adjacent bulges as much as possible;

(4) pouring and vibrating concrete to finish the manufacture of aluminum pipe concrete.

Example two

The utility model provides an aluminum pipe concrete column, includes the aluminium structure 1 of locating the surface, presss from both sides in the steel reinforcement cage 2 of middle level and fills concrete 3 in, aluminium structure 1 is the tubular structure of being made by aluminium, including energy-absorbing layer 11 and transition layer 12, by aluminium preparation, energy-absorbing layer 11 is cellular, wraps up outside transition layer 12, transition layer 12 is formed by the long aluminium strip that a plurality of cross sections are triangle-shaped along vertically with the arrangement form of triangle-shaped one-to-one to form a slice structure parcel in concrete 3 surface, the thickness of concrete 3 is energy-absorbing layer 11, 10 times of transition layer 12 thickness, all paste through powerful metal adhesive between energy-absorbing layer 11 and the transition layer 12, between transition layer 12 and the arch 4, steel reinforcement cage 2 locates between transition layer 12 and the concrete 3, including spiral stirrup and longitudinal reinforcement.

The above embodiments are merely preferred embodiments of the present utility model, the structure of the present utility model is not limited to the forms of the above embodiments, and any modifications, equivalents, etc. within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. An aluminum pipe concrete column, characterized in that: the concrete column comprises an aluminum structure (1) arranged on the outer surface, a reinforcement cage (2) clamped in the middle layer and concrete (3) filled in, wherein the aluminum structure (1) is a tubular structure made of aluminum.

2. An aluminum pipe concrete column according to claim 1, wherein: the aluminum structure (1) comprises an energy absorption layer (11) and a transition layer (12), wherein the energy absorption layer (11) is honeycomb-shaped and is wrapped outside the transition layer (12), and the transition layer (12) is formed by splicing a plurality of long aluminum strips with triangular cross sections in a triangle-shaped positive-negative arrangement mode, so that a sheet-shaped structure is formed and wrapped on the outer surface of the concrete (3).

3. An aluminum pipe concrete column according to claim 2, wherein: a plurality of bulges (4) are arranged between the transition layer (12) and the concrete (3), and the bulges (4) are of a vertical strip-shaped structure made of aluminum.

4. An aluminum pipe concrete column according to claim 3, wherein: the reinforcement cage (2) is arranged between the transition layer (12) and the concrete (3) and comprises spiral stirrups and longitudinal ribs, and the longitudinal ribs are arranged between two adjacent bulges (4).

5. An aluminum pipe concrete column according to claim 2, wherein: the thickness of the concrete (3) is 7-12 times of the thicknesses of the energy absorption layer (11) and the transition layer (12).

6. An aluminum pipe concrete column according to claim 3, wherein: the energy absorption layer (11) and the transition layer (12) and the bulge (4) are adhered by a strong metal adhesive.

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