Concrete column joint structure

Abstract

The utility model discloses a concrete column node structure, which belongs to the technical field of node structures, the top of a concrete column body is sleeved with a square cover, the top end of the concrete column body is provided with more than one U-shaped bolt, and the top of the square cover is provided with through holes corresponding to the U-shaped bolts. A through hole is formed in the square cover, a threaded part of the U-shaped bolt penetrates through the through hole and extends to the position above the square cover, the threaded part of the U-shaped bolt is in threaded connection with a fixing nut, a plurality of threaded pipes are arranged on the outer wall of the square cover, and threaded rods used for being connected with the steel structure beam are in threaded connection with the interiors of the threaded pipes. The problem can only be solved by cutting a steel structure beam or re-pouring a concrete column.

Description

Technical Field

[0001] The utility model relates to the technical field of node structures, in particular to a concrete column node structure. Background Art

[0002] There are many large building structures composed of concrete columns and steel beams on the market now. At present, in this type of factory building structure on the market, the steel beam is usually poured into the concrete column. Although this method is stable, when the steel beam needs to be replaced, it can only be achieved by cutting the steel beam or re-pouring the concrete column, which not only increases the replacement cost but also brings an additional economic burden to the factory.

[0003] For example, in the Chinese patent with the publication number CN207295999U, a hybrid connection node between a steel beam and a concrete-filled steel tube column is disclosed. The node includes a concrete-filled steel tube column and a steel beam. The steel beam consists of an upper flange, a lower flange, and a web, and the web is fixedly connected to the concrete-filled steel tube column. In addition, an outer ring plate and a sleeve are fixedly arranged on the outer side of the concrete-filled steel tube column, and the sleeve is located below the outer ring plate. The outer ring plate has four welding ends, and an inclined surface is provided between adjacent two welding ends to ensure that the side surface of the welding end is parallel to the side surface of the upper flange, and is fixedly connected to the upper flange by welding. The sleeve is fixedly connected to the lower flange.

[0004] However, in this prior art, the steel beam, the outer ring plate, and the sleeve do not directly penetrate into the concrete structure, but are sleeved on the outer side of the concrete column, which may lead to an unsatisfactory connection strength between the steel beam and the concrete column. Summary of the Utility Model

[0005] In order to solve the problems existing in the prior art, the utility model provides a concrete column node structure.

[0006] The technical solution of the utility model is as follows:

[0007] A concrete column node structure includes a concrete column body. A square cover is sleeved on the top of the concrete column body. One or more U-shaped bolts are fixedly arranged at the top end of the concrete column body. Through holes matching with the U-shaped bolts are arranged on the top of the square cover. The threaded part of the U-shaped bolt (4) passes through the through hole and extends above the square cover, and a fixing nut is threadedly connected to the threaded part of the U-shaped bolt. A plurality of threaded tubes are fixedly arranged on the outer side wall of the square cover, and threaded rods for connecting a steel beam are threadedly connected in the plurality of threaded tubes.

[0008] Furthermore, the U-shaped bolt is fixed at the top of the concrete column body by concrete pouring. A blocking part for increasing the contact area is arranged at the bottom of each U-shaped bolt. The blocking part is a triangular block, and the triangular block is welded on the circumferential outer wall of the bottom of the U-shaped bolt, and the triangular block is arranged in an inverted triangle shape.

[0009] Further, auxiliary plates are welded to both sides of the top of the triangular block, and the height of the auxiliary plates does not exceed the bottom of the threaded part of the U-bolt to ensure that the installation of the fixing nut will not be obstructed.

[0010] Further, connecting rods for enhancing the connection strength between the triangular block and the auxiliary plate are welded to both sides of the U-bolt, and the other ends of the connecting rods are fixed to the auxiliary plate.

[0011] Further, hexagonal blocks are welded to the middle parts of multiple said threaded rods.

[0012] Further, spring washers for preventing the threaded rods from loosening are provided between multiple said hexagonal blocks and the threaded tubes, and the spring washers are sleeved on the circumferential outer walls of the threaded rods.

[0013] Further, multiple threaded tubes are distributed in a rectangular array on the outer side wall of each square cover.

[0014] Further, multiple strengthening blocks evenly distributed circumferentially are welded to the circumferential outer walls of the threaded tubes, and the strengthening blocks are fixed to the square cover.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. For a concrete column joint structure of the present utility model, by providing a square cover and threaded rods, the square cover is sleeved on the top of the concrete column, and the square cover is fixed using a fixing nut, thereby completing the setting of the joint. Just install the steel structure beam on the threaded rods on the same side, and the installation of the steel structure beam can be completed. When disassembly is required, there is no need to cut the steel structure beam and re-pour the concrete column, reducing the input cost of the factory.

[0017] 2. By providing a blocking component in the present utility model, the triangular block is arranged in an inverted triangle, which facilitates the downward movement of the triangular block when the concrete is not solidified, and increases the contact area at the top after the concrete column solidifies, making it difficult for the U-bolt to be pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the concrete column joint structure;

[0019] Figure 2 is an exploded view of the concrete column joint structure;

[0020] Figure 3 is a schematic diagram of the structure of the square cover.

[0021] The reference numerals in the drawings are shown as:

[0022] 1. Concrete column body; 2. Square cover; 3. Fixed nut; 4. U-shaped bolt; 5. Reinforcing block; 6. Threaded pipe; 7. Threaded rod; 8. Through hole; 9. Auxiliary plate; 10. Triangular block; 11. Connecting rod; 12. Hexagonal block. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0024] Refer to Figures 1-3 , a concrete column joint structure, including a concrete column body 1. Two U-shaped bolts 4 are provided at the top of the concrete column body 1. The two U-shaped bolts 4 are placed therein during the pouring of the concrete column body 1 or directly fixed at the top of the concrete column body 1, and the threaded parts of the U-shaped bolts 4 are exposed. Blocking components for increasing the contact area are provided at the bottoms of the two U-shaped bolts 4. A square cover 2 is sleeved on the top of the concrete column body 1. A plurality of through holes 8 are opened on the outer wall of the top of the square cover 2. The threaded parts of the two U-shaped bolts 4 both pass through the through holes 8. Fixed nuts 3 are threadedly connected to the threaded parts of the two U-shaped bolts 4, and the fixed nuts 3 are in contact with the square cover 2. A plurality of threaded pipes 6 are provided on the outer wall of the square cover 2. The corresponding square cover 2 is selected and installed according to the size of the concrete column body 1. Threaded rods 7 for connecting steel structure beams are threadedly connected in the plurality of threaded pipes 6. When pouring the concrete column, the two U-shaped bolts 4 are placed upside down at the top of the concrete column, and the threaded parts of the U-shaped bolts 4 are exposed. After the concrete column solidifies, the corresponding square cover 2 is selected according to the actual installation situation. The square cover 2 is sleeved on the top of the concrete column, and the square cover 2 is fixed by using the fixed nut 3, thereby completing the setting of the joint. Just install the steel structure beam on the threaded rods 7 on the same side, and the installation of the steel structure beam can be completed. When disassembly is required, there is no need to cut the steel structure beam and re-pour the concrete column, reducing the input cost of the factory.

[0025] Among them, the blocking component is a triangular block 10. The triangular block 10 is welded on the circumferential outer wall of the bottom of the U-shaped bolt 4, and the triangular block 10 is arranged in an inverted triangle, which is convenient for the triangular block 10 to move downward when the concrete is not solidified during the pouring of the concrete, and increases the contact area at the top after the concrete column solidifies, making it difficult for the U-shaped bolt 4 to be pulled out.

[0026] Among them, auxiliary plates 9 are welded to both sides of the tops of the two triangular blocks 10. The auxiliary plates 9 can guide the movement of the triangular blocks 10, preventing the triangular blocks 10 from loosening and shaking due to insecure welding with the U-bolts 4, which would change the angle of the triangular blocks 10 and reduce the effect of increasing the contact area. The height of the auxiliary plates 9 does not exceed the bottom of the threaded part of the U-bolts 4, so that the auxiliary plates 9 are completely located within the concrete column body 1 to ensure that the installation of the fixing nuts 3 will not be obstructed and the installation of the square cover 2 will not be affected.

[0027] Among them, two connecting rods 11 for enhancing the connection strength between the triangular blocks 10 and the auxiliary plates 9 are welded to both sides of the two U-bolts 4, and the other ends of the connecting rods 11 are fixed to the auxiliary plates 9, strengthening the fixation between the triangular blocks 10 and the U-bolts 4, making the fixation of the triangular blocks 10 more stable, thereby reducing the occurrence of accidents.

[0028] Among them, hexagonal blocks 12 are welded to the middle parts of multiple threaded rods 7. The hexagonal blocks 12 can drive the threaded rods 7 to rotate, so that the threaded rods 7 can be removed from the threaded tubes 6, facilitating the replacement of the threaded rods 7.

[0029] Among them, spring washers 13 are provided between multiple hexagonal blocks 12 and the threaded tubes 6, and the spring washers 13 are sleeved on the circumferential outer walls of the threaded rods 7. After the threaded rods 7 are fixed, the situation of the threaded rods 7 rotating due to vibration is avoided, further improving the stability of the node.

[0030] Among them, at least two reinforcing blocks 5 are welded to the circumferential outer walls of multiple threaded tubes 6, and the reinforcing blocks 5 are fixed to the square cover 2, strengthening the supporting force of the threaded tubes 6, and thus improving the service life of the node.

[0031] The working principle of the present utility model:

[0032] When assembling the concrete column body 1 and the steel beam, the two U-bolts 4 are fixed to the top end of the concrete column body, and the threaded parts of the U-bolts 4 are exposed. The corresponding square cover 2 is selected according to the size of the concrete column body 1. The square cover 2 is sleeved on the top end of the concrete column, and the square cover 2 is fixed using the fixing nut 3, thus completing the setting of the node. Then the threaded rod 7 is screwed into the threaded tube 6, enabling the steel structure beam to be fixed to the node through hexagonal nuts, achieving the purpose of a detachable steel structure beam.

[0033] Finally, it should be noted that: for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A concrete column node structure, comprising a concrete column body (1), characterized in that: The top of the concrete column body (1) is sleeved with a square cover (2); the top of the concrete column body (1) is fixedly provided with one or more U-shaped bolts (4); the top of the square cover (2) is provided with a through hole (8) that matches the U-shaped bolt (4); the threaded portion of the U-shaped bolt (4) passes through the through hole (8) and extends to the top of the square cover (2); and the threaded portion of the U-shaped bolt (4) is threadedly connected with a fixing nut (3); the outer wall of the square cover (2) is fixedly provided with a plurality of threaded tubes (6); and the plurality of threaded tubes (6) are all threadedly connected with a threaded rod (7) for connecting a steel beam.

2. A concrete column node structure according to claim 1, characterized in that: The U-shaped bolt (4) is fixed to the top of the concrete column body (1) by pouring concrete, and the bottom of the U-shaped bolt (4) is provided with a blocking component for increasing the contact area, the blocking component is a triangular block (10), the triangular block (10) is welded to the circumferential outer wall of the bottom of the U-shaped bolt (4), and the triangular block (10) is arranged in an inverted triangle.

3. A concrete column node structure according to claim 2, characterized in that: Auxiliary plates (9) are welded on both sides of the top of the triangular block (10), and the height of the auxiliary plates (9) does not exceed the bottom of the threaded portion of the U-bolt (4) to ensure that the installation of the fixing nut (3) is not hindered.

4. A concrete column node structure according to claim 3, characterized in that: Connecting rods (11) for enhancing the connection strength between the triangular block (10) and the auxiliary plate (9) are welded on both sides of the U-shaped bolt (4), and the other end of the connecting rod (11) is fixed to the auxiliary plate (9).

5. The concrete column node structure according to claim 1, characterized in that: The middle parts of the plurality of threaded rods (7) are all welded with hexagonal blocks (12).

6. A concrete column node structure according to claim 5, characterized in that: Spring washers for preventing the threaded rod (7) from loosening are arranged between the plurality of hexagonal blocks (12) and the threaded tube (6), and the spring washers are sleeved on the circumferential outer wall of the threaded rod (7).

7. A concrete column node structure according to claim 1, characterized in that: The plurality of threaded tubes (6) on the outer side wall of each square cover (2) are distributed in a rectangular array.

8. The concrete column node structure according to claim 1, characterized in that: A plurality of reinforcement blocks (5) evenly distributed in the circumferential direction are welded to the circumferential outer wall of the threaded tube (6), and the reinforcement blocks (5) are fixed to the square cover (2).

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