CN200943287Y - Lightweight concrete filled steel tube column - Google Patents

Abstract

The utility model relates to a light-duty steel tube-concrete column. The utility model characters in the steel tube, inside of which is infused with concrete, and in the longitudinal reinforcing ribs that are distributing on the tube surface and parallel with the steel tube's axis. The utility model has such advantages as saving steel, great carrying capacity and reduction of jointing amount during manufacture.

Description

Lightweight concrete filled steel tube column

technical field

The utility model relates to a light steel pipe concrete column.

Background technique

Concrete filled steel pipe is a form of component formed by filling concrete in steel pipes. Concrete filled steel tube utilizes the interaction between the steel tube and concrete when they are under stress, that is, the confinement of the steel tube to the concrete makes the concrete under a complex stress state, thereby improving the strength of the concrete, and greatly improving the plasticity and toughness. At the same time, due to The existence of concrete can avoid or delay the local buckling of the steel pipe, and can ensure the full play of its material properties. However, steel pipes with thicker pipe walls are usually used in the manufacture of traditional CFST columns, which consume more steel materials and have the disadvantages of high cost, heavy welding workload and self-heaviness.

Contents of the invention

The purpose of the utility model is to provide a light-weight concrete-filled steel tube column, which can not only save steel materials, but also has a large bearing capacity, and can reduce welding workload during manufacture.

The utility model is characterized in that: it is composed of a steel pipe poured with concrete inside the body, and longitudinal reinforcing ribs parallel to the central line of the steel pipe are arranged on the peripheral wall of the steel pipe.

On the one hand, the utility model has the good characteristics of the steel pipe concrete column, and on the other hand, the rigidity of the steel pipe is further enhanced because longitudinal reinforcing ribs parallel to the center line of the steel pipe are arranged on the surrounding wall of the steel pipe.

Description of drawings

Figure 1 is a schematic diagram of a cross-sectional structure of Embodiment 1.

Fig. 2 is a schematic diagram of the cross-sectional structure of the second embodiment.

Fig. 3 is a schematic diagram of the cross-sectional structure of the third embodiment.

Fig. 4 is a schematic diagram of the cross-sectional structure of the fourth embodiment.

Fig. 5 is a schematic diagram of the cross-sectional structure of Embodiment 5.

Fig. 6 is a schematic diagram of the cross-sectional structure of the sixth embodiment.

Fig. 7 is a schematic diagram of the cross-sectional structure of the seventh embodiment.

Fig. 8 is a schematic diagram of the eighth cross-sectional structure of Embodiment 8.

Fig. 9 is a schematic diagram of the cross-sectional structure of the ninth embodiment.

Detailed ways

The first embodiment of the utility model is characterized in that it is composed of a steel pipe 3 poured with concrete inside the body, and longitudinal reinforcing ribs 1 parallel to the center line of the steel pipe are arranged on the peripheral wall of the steel pipe.

The above-mentioned longitudinal reinforcing ribs can be arranged on the inner wall or the outer wall of the steel pipe.

In order to strengthen the strength of the steel pipe, the cross-section of the steel pipe is provided with short opposite tension ribs 2 between the reinforcing ribs on both sides of the steel pipe wall. The cross-section of the steel pipe can be circular, square or rectangular.

In order to reduce the weight of the steel pipe, the steel pipe is made of welded thin-walled steel pipe or cold-formed thin-walled steel pipe. The concrete poured in the steel pipe body is lightweight concrete or ordinary concrete. The light concrete-filled steel pipe column of this structure still has a relatively large bearing capacity due to the effect of strengthening ribs to improve the stability of the pipe wall.

The notable advantages of the embodiment of the utility model are: 1. The use of welded thin-walled steel pipes or cold-formed thin-walled steel pipes can save steel and reduce the workload of welding; Strength and ductility; Third, the use of lightweight concrete can reduce the weight of the structure.

The utility model is novel in conception, reasonable in design, and has considerable market prospects.

Claims (9)

1, a kind of light steel tube concrete column is characterized in that: have concrete steel pipe to constitute by internal casting, be laid with the vertical ribs that parallels with the steel pipe center line on the described steel pipe perisporium.

2, light steel tube concrete column according to claim 1 is characterized in that: described vertical ribs is located on the inwall of steel pipe.

3, light steel tube concrete column according to claim 1 is characterized in that: described vertical ribs is located on the outer wall of steel pipe.

4, according to claim 1,2 or 3 described light steel tube concrete columns, it is characterized in that: be provided with on the cross section of steel pipe between steel pipe walls two side stringers to drawing short muscle.

5, light steel tube concrete column according to claim 1 is characterized in that: described steel pipe cross section is for circular.

6, light steel tube concrete column according to claim 4 is characterized in that: described steel pipe cross section is for circular.

7, light steel tube concrete column according to claim 1 is characterized in that: described steel pipe cross section is a rectangle or square.

8, light steel tube concrete column according to claim 4 is characterized in that: described steel pipe cross section is a rectangle or square.

9, light steel tube concrete column according to claim 1 and 2 is characterized in that: described steel pipe is made of welding thin-wall steel tube or light gauge cold-formed steel shape steel pipe, and the concrete of described steel pipe internal casting is a light weight concrete construction.

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