CN205444693U - Thin wall steel tube - reinforcing bar recycled concrete combination column - Google Patents

Abstract

The utility model discloses a thin wall steel tube - reinforcing bar recycled concrete combination column, including thin wall steel tube, be equipped with the reinforcing bar in the thin wall steel tube, be equipped with recycled concrete in the thin wall steel tube, recycled concrete wraps up the reinforcing bar. According to the automatic silicon steel sheet leveling machine of the transformer, the problem of the steel pipe recycled concrete that exists among the prior art easy emergence bucking unstability and for the steel pipe steel volume big is solved, replace the steel reinforcement cage with thin wall steel tube, practice thrift steel, the setting of reinforcing plate can prevent or delay steel pipe and recycled concrete's prerelease, and the local buckling to the steel pipe outer wall plays stronger restraint effect, strengthen the cuff effect of steel pipe, recycled concrete is in three -dimensional compression situation in the steel pipe, recycled concrete's deformation has been retrained, construction convenience has, bear the weight of the dynamic height, anti -seismic performance reaches advantages such as energy -concerving and environment -protective well.

Description

A thin-walled steel tube-steel reinforced recycled concrete composite column

technical field

The utility model belongs to the technical field of civil engineering, in particular to a thin-walled steel pipe-steel frame recycled concrete composite column.

Background technique

Nowadays, with the rapid development of the construction industry, the amount of waste concrete in the construction waste caused by the construction of new houses and the demolition of old buildings in the country is huge and increasing day by day. The huge processing costs and the resulting environmental problems are also very prominent. In order to minimize the exploitation of natural resources, it is necessary to maximize the recycling of construction waste. Therefore, the research and application promotion of construction waste treatment and application technology is imperative. Recycled concrete can realize the recycling of waste concrete, restore some of its original properties, and form new architectural products. It not only regenerates limited resources, but also solves some environmental protection problems. It is a sustainable green concrete. However, at present, due to the inherent damage of recycled aggregate and the high water absorption rate caused by the adsorption of a layer of old mortar on its surface, the strength, shrinkage and durability of recycled concrete are worse than ordinary concrete, which greatly limited its scope of use.

Steel pipe recycled concrete structure, steel pipe recycled concrete structure does not need formwork and stirrups, the existence of recycled concrete in steel pipes avoids the inward concave bending of steel pipes, and steel pipes provide effective lateral constraints for recycled concrete, this continuous constraint improves concrete The ductility of concrete improves the performance of concrete. This type of structure is widely used in subways, high-rise building structures, industrial plants and bridge structures. However, there are still problems in this type of components in actual use that need to be further studied and solved: (1) steel tube recycled concrete components are prone to buckling failure; (2) in order to meet the requirements of local stability of the steel plate, the thickness of the steel tube wall is generally thick The components use a large amount of steel.

Utility model content

The purpose of the utility model is to provide a thin-walled steel pipe-steel reinforced recycled concrete composite column, which solves the problems in the prior art that the steel pipe recycled concrete is prone to buckling instability and the steel consumption of the steel pipe is large.

The technical solution adopted by the utility model is a thin-walled steel pipe-steel frame recycled concrete composite column, which includes a thin-walled steel pipe, a steel frame is arranged in the thin-walled steel pipe, recycled concrete is arranged in the thin-walled steel pipe, and the recycled concrete wraps the steel bone.

The utility model is also characterized in that,

Wherein, the cross section of the thin-walled steel pipe is circular.

Wherein, the cross-section of the thin-walled steel pipe is polygonal.

Wherein, at least four reinforcing plates are evenly distributed vertically on the inner surface of the thin-walled steel pipe.

Wherein, the steel frame is an I-shaped steel shape.

Wherein, the steel frame is a cross-shaped steel shape.

Wherein, the steel frames are arranged along the diameter direction of the thin-walled steel pipe.

Wherein, the web of the steel frame coincides with the radial extension line of the reinforcing plate.

The beneficial effect of the utility model is that it solves the problems in the prior art that the steel pipe recycled concrete is prone to buckling instability and the steel consumption of the steel pipe is large, the steel cage is replaced by the thin-walled steel pipe, steel is saved, and the setting of the reinforcement plate can Prevent or delay the premature stripping of the steel pipe and the recycled concrete, and have a stronger restraint effect on the local buckling of the outer wall of the steel pipe, and strengthen the hoop effect of the steel pipe. It has the advantages of convenient construction, high bearing capacity, good seismic performance, energy saving and environmental protection.

Description of drawings

Fig. 1 is a structural representation of a thin-walled steel pipe-steel reinforced recycled concrete composite column of the present invention;

Fig. 2 is a schematic cross-sectional view of a thin-walled steel pipe-steel reinforced recycled concrete composite column of the present invention;

Fig. 3 is a schematic cross-sectional view of a thin-walled steel pipe-steel reinforced recycled concrete composite column in which the steel skeleton is a cross-shaped steel shape of the utility model;

Fig. 4 is a schematic cross-sectional view of a thin-walled steel pipe-steel-reinforced recycled concrete composite column of the present invention whose cross-section is square and steel-reinforced;

Fig. 5 is a schematic cross-sectional view of a thin-walled steel pipe-steel reinforced recycled concrete composite column of the present invention with a thin-walled steel pipe having a square cross-section and a cross-shaped steel skeleton.

In the figure, 1. thin-walled steel pipe, 2. reinforced plate, 3. steel frame, 4. recycled concrete.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model relates to the structure of a thin-walled steel pipe-steel frame recycled concrete composite column, as shown in Figure 1, comprising a thin-walled steel pipe 1, a steel frame 3 is arranged in the thin-walled steel pipe 1, and recycled concrete is arranged in the thin-walled steel pipe 1 4. Recycled concrete 4 wrapped steel frame 3.

Wherein, the cross section of the thin-walled steel pipe 1 is circular.

Wherein, the cross-section of the thin-walled steel pipe 1 is polygonal, as shown in FIGS. 4 and 5 .

Wherein, at least four reinforcing plates 2 are evenly distributed vertically on the inner surface of the thin-walled steel pipe 1 .

Wherein, the steel frame 3 is an I-shaped steel shape, as shown in FIG. 2 .

Wherein, the steel frame 3 is a cross steel shape, as shown in FIG. 3 .

Wherein, the steel frames 3 are arranged along the diameter direction of the thin-walled steel pipe 1 .

Wherein, the web of the steel frame 3 coincides with the radial extension line of the reinforcing plate 2 .

The method of use is that when in use, the wall steel pipe-steel reinforced recycled concrete composite column is applied to high-rise buildings and super high-rise buildings. deformation, thereby improving the mechanical properties of recycled concrete. At least four reinforcement plates are evenly distributed vertically on the inner surface of the thin-walled steel pipe. The recycled concrete on both sides of the reinforcement plate has shear resistance. The existence of the reinforcement plate effectively limits It improves the separation of thin-walled steel pipes and recycled concrete, improves the bonding force between thin-walled steel pipes and recycled concrete, and also improves the overall bearing capacity of steel pipe recycled concrete columns. The joint action of thin-walled steel pipes, steel frames and recycled concrete greatly The ductility and bearing capacity of the composite column are improved, and it has good mechanical properties.

The utility model is a thin-walled steel pipe-steel reinforced recycled concrete composite column, which solves the problems in the prior art that the steel pipe recycled concrete is prone to buckling instability and the steel consumption of the steel pipe is large, and the steel cage is replaced by the thin-walled steel pipe. Saving steel, the setting of the reinforcement plate can prevent or delay the premature peeling of the steel pipe and the recycled concrete, and have a stronger restraint effect on the local buckling of the outer wall of the steel pipe, strengthen the hoop effect of the steel pipe, and the recycled concrete in the steel pipe is in a three-way stress In the compressed state, the deformation of recycled concrete is restrained, and it has the advantages of convenient construction, high bearing capacity, good seismic performance, energy saving and environmental protection.

Claims (8)

1. a kind of thin-walled steel pipe-steel bone recycled concrete composite column, is characterized in that: comprise thin-walled steel pipe (1), is provided with steel frame (3) in described thin-walled steel pipe (1), described thin-walled steel pipe ( 1) There is recycled concrete (4) inside, and the recycled concrete (4) wraps the steel frame (3). 2. A thin-walled steel pipe-steel reinforced recycled concrete composite column according to claim 1, characterized in that: the cross-section of the thin-walled steel pipe (1) is circular. 3. A thin-walled steel pipe-steel reinforced recycled concrete composite column according to claim 1, characterized in that: the thin-walled steel pipe (1) has a polygonal cross section. 4. A thin-walled steel pipe-steel reinforced recycled concrete composite column according to any one of claims 2 or 3, characterized in that: the inner surface of the thin-walled steel pipe (1) is evenly distributed vertically with at least Four reinforcement plates (2). 5. A thin-walled steel pipe-steel frame recycled concrete composite column according to claim 1, characterized in that: the steel frame (3) is in the shape of an I-shaped steel. 6. A thin-walled steel pipe-steel frame recycled concrete composite column according to claim 1, characterized in that: the steel frame (3) is in the shape of a cross. 7. A thin-walled steel tube-steel frame recycled concrete composite column according to any one of claims 5 or 6, characterized in that: the steel frames (3) are arranged along the diameter direction of the thin-walled steel tube (1) . 8. A thin-wall steel pipe-steel frame recycled concrete composite column according to claim 7, characterized in that: the web of the steel frame (3) coincides with the radial extension line of the reinforcing plate (2).