Steel member

Abstract

The utility model discloses a steel member which comprises a round steel pipe and a square steel pipe which are coaxially arranged, the round steel pipe is installed inside the square steel pipe in an internally tangent mode, the peripheral diameter of the round steel pipe is matched with the peripheral length of the square steel pipe, and the center line positions of the four inner walls of the square steel pipe make contact with and are fixedly connected with four buses on the periphery of the round steel pipe respectively. The steel member simultaneously has the advantages of a round steel pipe and a square steel pipe, is higher in axial pressure and flexural bearing capacity, the same in isotropic rigidity, convenient to manufacture, less in welding seam, paint and fireproof coating, better in building appearance, convenient in building arrangement, high in bearing capacity and convenient in building layout, reduces the width-to-thickness ratio of the member, can be thinner in plate thickness, and can be used for manufacturing the steel member. The structural steel consumption is reduced, and the economical efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of building structures, in particular to a steel component. Background Art

[0002] The increasing use of steel components in the field of building structures has brought new requirements for the economy, production efficiency and special usage scenarios of the components.

[0003] In the prior art, steel components generally adopt one of the circular cross-section and the box-shaped cross-section. The circular and box-shaped cross-sections each have their own advantages. For example, the advantages of the circular cross-section are higher axial compression and bending bearing capacity, the same axial stiffness, easy manufacturing, and fewer welds, paints, and fire-retardant coatings. The advantages of the box-shaped cross-section are better building appearance and convenient building layout. However, correspondingly, the use of a steel component with one cross-section cannot reflect the advantages of the other cross-section, resulting in corresponding defects and failing to meet the use requirements of different scenarios at the same time.

[0004] Therefore, how to provide a steel component having the above advantages at the same time is a technical problem that those skilled in the art need to solve at present. Utility Model Content

[0005] The utility model aims to provide a steel component which has high bearing capacity and convenient building layout, reduces the width-to-thickness ratio of the component, reduces the amount of structural steel, and improves economy.

[0006] In order to solve the above technical problems, the utility model provides a steel component, including a coaxially arranged round steel tube and a square steel tube, the round steel tube is inscribed and installed inside the square steel tube, the outer circumference diameter of the round steel tube matches the inner circumference length of the square steel tube, and the centerline positions of the four inner walls of the inner circumference of the square steel tube respectively contact and fix the four busbars on the outer circumference of the round steel tube.

[0007] Preferably, the four sides of the inner circumference of the square steel tube are of equal length, and the outer circumference of the round steel tube and the contact position with the square steel tube are arranged in sequence at an interval of 90 degrees.

[0008] Preferably, the square steel tube includes four axially extending L-shaped steels, the L-shaped steels include two wing plates perpendicular to each other, the widths of the wing plates are equal, the inner edges of the two wing plates close to each other are connected to form the corners of the square steel tube, and the outer edges of the two wing plates far away from each other are spliced ​​with another L-shaped steel to form a hollow rectangular structure.

[0009] Preferably, welds are provided at the joints of the outer edges of the corresponding wing panels of the adjacent L-shaped steels, and the four L-shaped steels are welded.

[0010] Preferably, the weld corresponding to the joint of the outer edges of the two wing panels is close to the outer periphery of the round steel tube, and the outer periphery of the round steel tube is welded to the joint.

[0011] Preferably, an outer edge of the wing plate is provided with a chamfer so that the outer width of the weld is greater than the inner width.

[0012] Preferably, an axially extending reinforcing plate is provided in the gap between the square steel tube and the round steel tube, and the two side edges of the reinforcing plate are respectively connected to the inner periphery of the square steel tube and the outer periphery of the round steel tube.

[0013] Preferably, the four reinforcing plates are evenly distributed on the outer circumference of the round steel tube, and the outer edges of the reinforcing plates are respectively connected to the inner circumference corners of the square steel tube.

[0014] Preferably, the interior of the circular steel tube is filled with poured concrete.

[0015] Preferably, the gap between the square steel tube and the round steel tube is filled with poured concrete.

[0016] The utility model provides a steel component, including a coaxially arranged round steel pipe and a square steel pipe, the round steel pipe is internally installed inside the square steel pipe, the outer diameter of the round steel pipe matches the inner perimeter of the square steel pipe, and the centerline positions of the four inner walls of the inner periphery of the square steel pipe respectively contact and fix the four generatrixes connected to the outer periphery of the round steel pipe. The steel component has the advantages of both round steel pipes and square steel pipes, with higher axial pressure and bending bearing capacity, the same axial stiffness, convenient manufacturing, less welds, paints, and fire-retardant coatings, and a better architectural appearance, which is convenient for architectural layout, and has high bearing capacity and architectural layout convenience, reduces the width-to-thickness ratio of the component, and the thickness of the plate can be made thinner, which reduces the amount of structural steel and improves economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic end view of the first embodiment of the steel component provided by the utility model;

[0018] Figure 2 This is a schematic end view of the second embodiment of the steel component provided by the utility model;

[0019] Figure 3 This is a schematic end view of the third embodiment of the steel component provided by the utility model.

[0020] Among them, round steel pipe 1, square steel pipe 2, L-shaped steel 3, weld 4, reinforcement plate 5. DETAILED DESCRIPTION

[0021] The core of the utility model is to provide a steel component which has high bearing capacity and building layout convenience, reduces the width-to-thickness ratio of the component, reduces the amount of structural steel, and improves economy.

[0022] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Please refer to Figure 1 , Figure 1 This is a schematic end view of the first embodiment of the steel component provided by the utility model.

[0024] The first embodiment of the utility model provides a steel component, including a coaxially arranged round steel tube 1 and a square steel tube 2, the cross section of the round steel tube 1 is annular, the cross section of the square steel tube 2 is U-shaped, the round steel tube 1 is inscribed and installed inside the square steel tube 2, that is, from the cross section, it is two squares and two circles nested in sequence, the outermost layer is a large square, a small square is arranged inside the large square, a large circle is inscribed in the small square, and a small circle is arranged inside the large circle. And the outer diameter of the round steel tube 1 matches the inner circumference of the square steel tube 2, so that the center line positions of the four inner walls of the inner circumference of the square steel tube 2 respectively contact and fix the four busbars on the outer circumference of the round steel tube 1. Among them, the connection can be connected by welding.

[0025] Specifically, the four sides of the inner circumference of the square steel tube 2 are equal in length, and the contact positions of the outer circumference of the round steel tube 1 and the square steel tube 2 are arranged in sequence at intervals of 90 degrees.

[0026] The use of steel components has the advantages of both round steel tubes 1 and square steel tubes 2, with higher axial compression and bending bearing capacity, equal stiffness in all directions, easy manufacture, fewer welds, paints, and fire-retardant coatings, better architectural appearance, convenient building layout, high bearing capacity and architectural layout convenience, and reduced width-to-thickness ratio of components. The thickness of the plate can be made thinner, reducing the amount of structural steel and improving economy.

[0027] Please refer to Figure 2 , Figure 2 This is a schematic end view of the second embodiment of the steel component provided by the utility model.

[0028] The second embodiment of the utility model provides a steel component. For the convenience of processing, the square steel tube 2 includes four axially extending L-shaped steels 3. The L-shaped steels 3 include two wing plates perpendicular to each other, and the width of each wing plate is equal. The inner edges of the two wing plates close to each other are connected to form the corner of the square steel tube 2. The outer edges of the two wing plates far from each other are spliced ​​with another L-shaped steel 3 to form a hollow rectangular parallelepiped structure. That is, the four angle steel structure troughs are all facing the round steel tube 1, and spliced ​​to form a hollow square steel tube 2.

[0029] Furthermore, a weld 4 is provided at the joint of the outer edges of the corresponding wing plates of adjacent L-shaped steels 3, and the four L-shaped steels 3 are connected by welding. The weld 4 at the joint of the outer edges of the corresponding two wing plates is close to the outer periphery of the round steel pipe 1, and the outer periphery of the round steel pipe 1 is welded to the joint, that is, the welding position coincides, which is convenient for welding and improves processing convenience.

[0030] Preferably, the outer edge of the wing plate is provided with a bevel, so that the outer width of the weld 4 is greater than the inner width, and the weld 4 is located on the outer side to facilitate automated welding.

[0031] Please refer to Figure 3 , Figure 3 This is a schematic end view of the third embodiment of the steel component provided by the utility model.

[0032] The third embodiment of the utility model provides a steel component, wherein an axially extending reinforcing plate 5 is arranged in the gap between the square steel tube 2 and the round steel tube 1, and the edges on both sides of the reinforcing plate 5 are respectively connected to the inner periphery of the square steel tube 2 and the outer periphery of the round steel tube 1. Specifically, four reinforcing plates 5 are evenly distributed on the outer periphery of the round steel tube 1, and the outer edges of the reinforcing plates 5 are respectively connected to the inner periphery corners of the square steel tube 2.

[0033] The fourth embodiment of the utility model provides a steel component, wherein the square steel tube 2 includes four axially extending L-shaped steels 3, the inner edges of the two wing plates close to each other are connected to form the corners of the square steel tube 2, and the outer edges of the two wing plates far from each other are spliced ​​with other L-shaped steels 3 to form a hollow rectangular parallelepiped structure. That is, the four angle steel structure troughs are all facing the round steel tube 1, and are spliced ​​to form a hollow square steel tube 2. A weld 4 is provided at the splicing of the outer edges of the corresponding wing plates of adjacent L-shaped steels 3, and the four L-shaped steels 3 are connected by welding. And the weld 4 at the splicing of the outer edges of the corresponding two wing plates is close to the outer periphery of the round steel tube 1. An axially extending reinforcing plate 5 is provided in the gap between the square steel tube 2 and the round steel tube 1, and the edges on both sides of the reinforcing plate 5 are respectively connected to the inner periphery of the square steel tube 2 and the outer periphery of the round steel tube 1.

[0034] On the basis of the steel components provided in the above specific embodiments, the inside of the round steel pipe 1 is filled with concrete, and the gap between the square steel pipe 2 and the round steel pipe 1 is also filled with concrete, so as to further improve the strength of the steel pipe.

[0035] The steel structure provided by the utility model is introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A steel component, characterized in that: The invention comprises a coaxially arranged round steel tube (1) and a square steel tube (2), wherein the round steel tube (1) is inscribed and installed inside the square steel tube (2), the outer diameter of the round steel tube (1) matches the inner circumference of the square steel tube (2), and the center lines of the four inner walls of the inner circumference of the square steel tube (2) respectively contact and are fixedly connected to four busbars on the outer circumference of the round steel tube (1).

2. The steel member according to claim 1, characterized in that The four sides of the inner circumference of the square steel tube (2) are of equal length, and the contact positions of the outer circumference of the round steel tube (1) and the square steel tube (2) are arranged in sequence at intervals of 90 degrees.

3. The steel member according to claim 2, characterized in that The square steel tube (2) comprises four axially extending L-shaped steels (3), wherein the L-shaped steels (3) comprise two wing plates perpendicular to each other, each of the wing plates having an equal width, the inner edges of the two wing plates being close to each other being connected to form a corner of the square steel tube (2), and the outer edges of the two wing plates being far away from each other being spliced ​​with another L-shaped steel (3) to form a hollow rectangular parallelepiped structure.

4. The steel member according to claim 3, characterized in that A weld (4) is provided at the joint of the outer edges of the corresponding wing plates of the adjacent L-shaped steels (3), and the four L-shaped steels (3) are welded.

5. The steel member according to claim 4, characterized in that The weld (4) corresponding to the joint of the outer edges of the two wing plates is close to the outer periphery of the round steel tube (1), and the outer periphery of the round steel tube (1) is welded to the joint.

6. The steel member according to claim 5, characterized in that The outer edge of the wing plate is provided with an inclined surface, so that the outer width of the weld (4) is greater than the inner width.

7. The steel member according to claim 1, characterized in that An axially extending reinforcing plate (5) is provided in the gap between the square steel tube (2) and the round steel tube (1), and the two side edges of the reinforcing plate (5) are respectively connected to the inner periphery of the square steel tube (2) and the outer periphery of the round steel tube (1).

8. The steel member according to claim 7, characterized in that The four reinforcing plates (5) are evenly distributed on the outer circumference of the round steel tube (1), and the outer edges of the reinforcing plates (5) are respectively connected to the inner circumferential corners of the square steel tube (2).

9. The steel member according to any one of claims 1 to 8, characterized in that: The interior of the circular steel pipe (1) is filled with poured concrete.

10. The steel member according to claim 9, characterized in that The gap between the square steel tube (2) and the round steel tube (1) is filled with concrete.

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