CN103334541A - Steel rib-steel pipe concrete combination column - Google Patents

Abstract

The invention relates to the field of structural engineering in civil engineering, in particular to a steel frame-concrete steel tube composite column. The steel frame-concrete steel tube composite column in the prior art has the following disadvantages. The outer side of the column body is easy to peel off, which has potential safety hazards. When pouring concrete, it is necessary to set a formwork outside the steel frame, which is inconvenient for construction. The steel frame-steel tube provided by the present invention Concrete composite column, at least one steel frame is arranged inside the steel pipe, the steel frame is parallel to or coincident with the axis of the steel pipe, concrete is poured between the steel frame and the steel pipe, the use of formwork is omitted during the construction process, and the There is no need to install or remove the formwork, which simplifies the construction steps and improves the construction efficiency. Since the periphery of the column is a steel pipe, there is no possibility of peeling off the steel pipe during the stress process, which improves the safety performance of the steel frame-concrete filled steel pipe composite column, making it Longer life and wider range of applications.

Description

Steel Reinforced Steel Tube Concrete Composite Column

technical field

The invention relates to the field of structural engineering in civil engineering, in particular to a steel frame-concrete steel tube composite column.

Background technique

The steel-reinforced steel-concrete-filled composite column overcomes the shortcomings of the steel-reinforced concrete-filled column and the steel-reinforced concrete column to a certain extent, and fully develops the advantages of the two structures. Since the steel-reinforced steel-filled steel composite column has good mechanical It has been widely used in the field of civil engineering due to its performance.

The steel frame-concrete filled steel pipe composite column in the prior art includes a core steel pipe, and a steel skeleton is arranged outside the core steel pipe. During the construction process, the core steel pipe is first positioned, and then the steel skeleton is set outside the core steel pipe, and then the formwork is set outside the steel skeleton. , pouring concrete, this kind of steel frame-concrete-filled steel pipe composite column has a simple structure, but it has the following disadvantages. The formwork is set outside the steel frame, and the formwork needs to be removed after the concrete has set, which increases the workload of the construction personnel and is inconvenient to operate.

Contents of the invention

The invention aims to overcome the deficiencies of the prior art and provide a steel frame-concrete filled steel composite column with good mechanical properties and convenient construction.

In order to solve the above technical problems, the present invention adopts the following technical solution: steel frame-concrete filled steel tube composite column, including steel tube and concrete filled in the steel tube, at least one steel frame is arranged in the steel tube, and the steel frame is parallel to the axis of the steel tube or coincident.

As a preference, tie bars are provided between all the steel frames and the inner wall of the steel pipe, and the tie bars play the role of connecting the steel pipes and the steel frames so that the steel frames are fixed on the steel pipes. During the construction process, the steel pipes and the steel frames The positioning is completed in one step, which improves the construction efficiency.

Preferably, the steel frame is an angle steel, because the angle steel has good mechanical properties such as bending resistance and torsion resistance, which improves the overall bending resistance and torsion resistance of the column, so that the mechanical properties of the column are better, and the force bigger.

As a preference, several of the steel frames are arranged in a polygonal shape in the steel pipe. Since the polygonal shape has better bending and torsion resistance than the circle, the overall bending and torsion resistance of the column is further improved. The use range of the cylinder is widened.

As a preference, there are trim plates between the steel frames, and the trim plates are used to connect the steel frames so that the positioning of the steel frames in the steel pipe is more reliable, avoiding the possibility of misalignment of the steel frames during the pouring process, and facilitating construction.

It can be seen from the above technical scheme that at least one steel frame is arranged in the steel pipe, the steel frame is parallel to or coincident with the axis of the steel pipe, the steel frame is provided in the steel pipe, and the concrete is poured in the steel pipe. The concrete is poured between the steel frame and the steel pipe, which saves the use of the formwork during the construction process, and does not need to install or remove the formwork during the construction process, which simplifies the construction steps and improves the construction efficiency. There is no possibility of peeling off the steel pipe during the process, so the safety performance of the steel frame-concrete filled steel pipe composite column is improved, the service life is longer, and the application range is wider.

Description of drawings

Accompanying drawing 1 is the plan view of steel frame-concrete filled steel tube composite column of the present invention,

Accompanying drawing 2 is the front view of the steel frame-concrete filled steel tube composite column of the present invention,

Shown in the figure 1, steel pipe, 2, steel frame, 3, tie bars, 4, trim plate, 5, concrete.

Detailed ways

The steel frame-concrete filled steel composite column of the present invention will be further described below in conjunction with the accompanying drawings. As shown in Figure 1 and Figure 2, it includes a steel pipe 1 and concrete 5 filled in the steel pipe 1. At least one steel frame 2 is arranged in the steel pipe 1, and the steel frame 2 is parallel to or coincident with the axis of the steel pipe, for the convenience of construction , there is a tie bar 3 between all the steel frames 2 and the inner wall of the steel pipe 1, and the tie bar 3 plays the role of connecting the steel pipe 1 and the steel frame 2, and the tie bar 3 and the steel pipe 1 and the steel frame 2 The connection method can be welding, bolt connection, etc. The tie bars 3 fix the steel frame 2 on the inner wall of the steel pipe 1, which avoids tilting or misalignment of the steel frame 2 when pouring the concrete 5 during construction, facilitates construction, and improves construction efficiency.

The steel frame 2 is an angle steel. Because the angle steel has good mechanical properties relative to the round steel, the bending and torsional strength of the column is improved, and the mechanical properties of the column are improved. The steel frame 2 can be non- Section steel other than round steel, such as I-beam, T-steel, channel steel, etc.

As shown in Figure 1, there are four steel frames 2, which are arranged in a quadrangle in the steel pipe 1. Since the quadrangle has better mechanical properties than the circle, the overall mechanical properties of the column are further improved. In order to make all the steel The connection between the bones 2 is reliable, and there is a patch plate 4 between the steel frames 2 to make the connection between all the steel frames 2 more reliable. When the concrete 5 is poured, the position of the steel frame 2 relative to the steel pipe 1 is fixed, and the steel frame 2 does not There will be an inclination, which improves the construction efficiency. The connection between the panel 4 and the steel frame 2, and the connection between the steel frame 2 and the inner wall of the steel pipe 1 are various, such as bolted connection, welding, riveting, etc., which will not be discussed here. Describe them one by one.

During the use of the above technical solution, since the steel frame 2 is connected with the steel pipe 1 through the tie bar 3, the steel frame 2 has been positioned while the steel pipe 1 is positioned during construction, and then the concrete 5 is poured in the steel pipe 1. The step of installing and removing formwork in the prior art is omitted when pouring concrete 5, which improves the construction efficiency. The steel frame-concrete filled steel tube composite column in the above technical solution will not have the possibility of column spalling during the stress process. , effectively prolonging the service life of the steel-reinforced steel-concrete-filled composite column, and improving the safety performance of the steel-reinforced steel-concrete-filled composite column in the stress process.

The above are only preferred embodiments of the present invention, intended to reflect the outstanding technical effects and advantages of the present invention, and are not intended to limit the technical solutions of the present invention. Those skilled in the art should understand that all modifications, changes or replacement technical features made based on the technical content of the present invention shall fall within the technical scope of the appended claims of the present invention.

Claims (5)

1. Steel frame-concrete steel tube composite column, including steel tube (1) and concrete (5) filled in the steel tube (1), characterized in that: the steel tube (1) is provided with at least one steel frame (2), The steel frame (2) is parallel to or coincident with the axis of the steel pipe (1). 2. The steel frame-concrete steel tube composite column according to claim 1, characterized in that: tie bars (3) are provided between all the steel frames (2) and the inner wall of the steel tube (1). 3. The steel frame-concrete filled steel tube composite column according to claim 1 or 2, characterized in that: the steel frame (2) is an angle steel. 4 . The steel frame-concrete steel tube composite column according to claim 3 , characterized in that: the steel frame ( 2 ) is surrounded by a number of polygons and arranged inside the steel tube ( 1 ). 5. The steel frame-concrete filled steel tube composite column according to claim 4, characterized in that: there are trim plates (4) between the steel frames (2).

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