Prefabricated column and connecting joint of prefabricated columns

Abstract

The connecting joint comprises a lower column body and an upper column body, a plurality of clamping grooves are formed in the upper end face of the lower column body, a plurality of clamping blocks used for being inserted into the clamping grooves are arranged on the lower end face of the upper column body, and the clamping blocks are matched with the clamping grooves in shape; when the upper column body is installed on the lower column body, the clamping blocks are inserted into the multiple clamping grooves in a one-to-one correspondence mode. According to the connecting joint, the upper column body component and the lower column body component can be disassembled and reused.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, in particular to a prefabricated column and a connection node of the prefabricated columns. Background Art

[0002] At present, in order to meet the needs of production and manufacturing, there are a large number of temporary buildings. Temporary building structures are usually assembled from container structures or overlapped with color steel plates. They have poor sound insulation, weak structural bearing capacity and are prone to rust. Compared with concrete buildings, the living experience is poor.

[0003] The construction of structural columns in conventional concrete buildings usually requires that after the floor slab is completed, the steel bars of the upper structural columns are tied in the holes reserved for the structural columns in the floor slab, and then the formwork is set up and the structural column concrete is poured. This method is to pour concrete on site, which involves a lot of wet work, and after the concrete is poured, the components cannot be disassembled and reused.

[0004] The construction of structural columns of conventional prefabricated buildings is to hoist the prefabricated columns above the lower structural columns, insert the reserved steel bars of the lower structural columns into the prefabricated columns, and then inject grouting through the grouting holes to achieve the connection between the upper and lower columns. The connection nodes formed by this construction method make it impossible to disassemble and reuse the structural columns later. Utility Model Content

[0005] Based on the above description, the utility model provides a prefabricated column and a connection node of the prefabricated column to solve the problem that the structural column is difficult to disassemble and reuse after the construction is completed.

[0006] The utility model solves the above technical problems with the following technical solutions: a connection node between prefabricated columns and prefabricated columns, comprising a lower column and an upper column, wherein the upper end surface of the lower column is provided with a plurality of card slots, and the lower end surface of the upper column is provided with a plurality of card blocks for being plugged into the card slots, and the shape of the card blocks matches the shape of the card slots;

[0007] When the upper column is installed on the lower column, the card blocks are plugged into the plurality of card slots in a one-to-one correspondence.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the slots are opened inward from the side wall of the lower column, and the slots are arranged at intervals around the circumference of the lower column.

[0010] Furthermore, the width of the slot near the inside of the lower cylinder is greater than the width of the slot near the outer side wall of the lower cylinder.

[0011] Furthermore, the height of the clamping block is the same as the height of the clamping slot.

[0012] Furthermore, a prefabricated beam is installed on the lower column, and a connector is provided at the end of the prefabricated beam, the shape of the connector matches the shape of the slot, and the connector is plugged into the slot;

[0013] After the upper column is installed, the clamping block is located above the connecting head.

[0014] Furthermore, the sum of the height of the connector and the height of the clamping block is the same as the height of the clamping slot.

[0015] Furthermore, the upper column includes an upper main column and an upper reinforcement member, the upper reinforcement member is fixed to the end of the upper main column, and the clamping block is arranged on the upper reinforcement member;

[0016] The lower column comprises a lower main column and a lower reinforcement member, the lower reinforcement member is fixed to the end of the lower main column, and the clamping slot is provided on the lower reinforcement member.

[0017] Furthermore, a cavity is vertically opened in the middle of the clamping block.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] 1. The present application sets a card slot on the lower column and sets a mounting block on the upper column. When installing the upper column, it is only necessary to insert the mounting blocks on the upper column into the card slot one by one, and then the upper column can be installed on the lower column. The installation is simple, convenient and fast, and the upper column can be easily removed from the lower column later.

[0020] 2. The slot is arranged around the circumference of the lower column, so that when the mounting block is inserted into the slot, the movement of the upper column can be restricted from multiple directions, thereby improving the ability of the connection between the upper column and the lower column to resist bending moment and torque;

[0021] 3. Set the end of the prefabricated beam with a connector that matches the shape of the slot. When constructing the connection node here, first plug the connector on the prefabricated beam into the lower column, and then install the upper column on the lower column. The upper column can further limit the displacement of the prefabricated beam and reduce the possibility of the connector moving in the slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a plan view of Example 1 of the present application, which includes a top view of a lower column and a bottom view of an upper column from top to bottom, and takes a square column as an example for illustration;

[0023] Figure 2This is a plan view of Example 2 of the present application, which includes a top view of a lower cylinder and a bottom view of an upper cylinder from top to bottom, and takes a circular cylinder as an example for illustration;

[0024] Figure 3 This is a schematic diagram of the overall structure after the installation of Example 3 of the present application is completed;

[0025] Figure 4 This is a schematic diagram of the explosion structure of Example 3 of the present application.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Upper column; 11. Clamping block; 111. Cavity; 12. Upper main column; 13. Upper reinforcement; 2. Lower column; 21. Clamping groove; 22. Lower main column; 23. Lower reinforcement; 3. Prefabricated beam; 31. Connector. DETAILED DESCRIPTION

[0028] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0030] Example 1

[0031] A connection node between precast columns, referring to Figure 1 , including an upper column 1 and a lower column 2. When the upper column 1 is installed above the lower column 2, the construction of the lower column 2 is completed. The end surface of the lower column 2 facing the upper column 1, that is, the upper end surface, is provided with a plurality of card slots 21, and the end surface of the upper column 1 facing the lower column 2, that is, the lower end surface, is provided with a plurality of card blocks 11 for plugging into the card slots 21. The shape of the card blocks 11 matches the shape of the card slots 21.

[0032] When constructing the upper column 1, the multiple card blocks 11 on the upper column 1 are plugged into the multiple card slots 21 one by one to complete the installation construction of the upper column 1. In this application, two types of columns, a circular column and a square column, are used as examples for illustration.

[0033] Preferably, a plurality of slots 21 are arranged at intervals around the circumference of the lower cylinder 2, and each slot 21 is opened inward from the side wall of the lower cylinder 2, and the width of the slot 21 near the inside of the lower cylinder 2 is greater than the width of the slot 21 near the outer wall of the lower cylinder 2. On the one hand, the slots 21 are arranged at intervals, so that the upper cylinder 1 and the lower cylinder 2 are not easy to rotate relative to each other, thereby making the ability of the connection node between the upper cylinder 1 and the lower cylinder 2 to resist torque stronger; on the other hand, the slots 21 are arranged around the lower cylinder 2, so that after the clamping block 11 is inserted into the slots 21, the horizontal displacement of the upper cylinder 1 can be limited from multiple directions, so that the ability to resist bending moment between the upper cylinder 1 and the lower cylinder 2 is enhanced, and the upper cylinder 1 is not easy to tilt and flip relative to the lower cylinder 2, thereby achieving a more stable connection between the upper cylinder 1 and the lower cylinder 2.

[0034] In a preferred embodiment, the height of the snap-in block 11 is the same as the height of the snap-in slot 21. When the snap-in block 11 is inserted into the snap-in slot 21, the lower surface of the upper column 1 abuts against the upper surface of the lower column 2, so that a gap is less likely to appear between the upper column 1 and the lower column 2.

[0035] In another embodiment, a cavity 111 is vertically provided in the middle of the clamping block 11. The provision of the cavity 111 can reduce the material usage of the clamping block 11, making the production more economical, and does not affect the limiting effect of the clamping block 11 on the upper column 1. If the clamping block 11 is designed as a solid structure, there is a surplus in the structural force calculation, and it can be considered to open the cavity 111 in the clamping block 11, which can save more manufacturing materials while meeting the structural connection strength.

[0036] Example 2

[0037] The difference between Example 2 and Example 1 is that, referring to Figure 2 , a prefabricated beam 3 is also installed on the lower column 2. In the embodiment of the present application, four prefabricated beams 3 are installed on the lower column 2. If the lower column 2 is a structural corner column or side column, only two or three prefabricated beams 3 need to be installed. A connector 31 is provided at the end of the prefabricated beam 3. The shape of the connector 31 matches the shape of the slot 21. When installing the prefabricated beam 3, the connector 31 is plugged into the slot 21 to complete the installation.

[0038] The upper column 1 is installed after the prefabricated beam 3 is installed. When the upper column 1 is installed above the lower column 2 , the plurality of clamping blocks 11 are plugged into the clamping slots 21 one by one, and the clamping blocks 11 are located above the connector 31 .

[0039] In a preferred embodiment, the sum of the height of the connecting head 31 and the height of the snap-in block 11 is the same as the height of the slot 21. After the upper column 1 is installed, the upper end surface of the upper column 1 abuts against the lower end surface of the lower column 2, and the connecting head 31 is clamped between the snap-in block 11 and the bottom wall of the slot 21, forming a more compact installation node, so that the connection between the prefabricated beam 3, the lower column 2 and the upper column 1 is more stable, and they can limit and cooperate with each other, so that the strength of the connection node is higher.

[0040] Example 3

[0041] The difference between Example 3 and Example 1 and Example 2 is that, Figure 3 to Figure 4 The upper column 1 includes an upper main column 12 and an upper reinforcement 13, the upper reinforcement 13 is fixed to the end of the upper main column 12, and the clamping block 11 is arranged on the upper reinforcement 13; the lower column 2 includes a lower main column 22 and a lower reinforcement 23, the lower reinforcement 23 is fixed to the end of the lower main column 22, and the clamping slot 21 is opened on the lower reinforcement 23.

[0042] On the one hand, the upper reinforcement 13 and the lower reinforcement 23 are provided to facilitate the processing and forming of the slot 21 and the clamping block 11. On the other hand, the provision of the slot 21 and the clamping block 11 does not affect the structural strength of the upper main column 12 and the lower main column 22. In addition, if the slot 21 and the clamping block 11 are directly formed on the concrete structure, the strength at the connection node may not be able to meet the structural force calculation. Therefore, the upper reinforcement 13 and the lower reinforcement 23 are provided to improve the connection strength at the connection node.

[0043] The structural material of the upper reinforcement 13 and the lower reinforcement 23 is not limited, and can be steel or a ceramic material whose strength has been verified by structural force calculation, or other new high-strength materials.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connection node between prefabricated columns, characterized in that: It comprises a lower column (2) and an upper column (1), wherein the upper end surface of the lower column (2) is provided with a plurality of card slots (21), and the lower end surface of the upper column (1) is provided with a plurality of card blocks (11) for being plugged into the card slots (21), and the shape of the card blocks (11) matches the shape of the card slots (21); When the upper column (1) is mounted on the lower column (2), the card blocks (11) are plugged into the plurality of card slots (21) in a one-to-one correspondence.

2. A prefabricated column and a connection node of prefabricated columns according to claim 1, characterized in that: The clamping slots (21) are opened inwardly from the side wall of the lower column (2), and the clamping slots (21) are arranged at intervals around the circumference of the lower column (2).

3. The connection node between a prefabricated column and a prefabricated column according to claim 1, characterized in that: The width of the card slot (21) close to the interior of the lower column (2) is greater than the width of the card slot (21) close to the outer side wall of the lower column (2).

4. The connection node between a prefabricated column and a prefabricated column according to claim 3, characterized in that: The height of the clamping block (11) is the same as the height of the clamping slot (21).

5. The connection node between a prefabricated column and a prefabricated column according to claim 1, characterized in that: A prefabricated beam (3) is installed on the lower column (2), and a connector (31) is provided at the end of the prefabricated beam (3), the shape of the connector (31) matches the shape of the slot (21), and the connector (31) is plugged into the slot (21); After the upper column (1) is installed, the clamping block (11) is located above the connecting head (31).

6. The connection node between a prefabricated column and a prefabricated column according to claim 5, characterized in that: The sum of the height of the connecting head (31) and the height of the clamping block (11) is the same as the height of the clamping slot (21).

7. A prefabricated column and a connection node of prefabricated columns according to any one of claims 1 to 6, characterized in that: The upper column (1) comprises an upper main column (12) and an upper reinforcement (13), wherein the upper reinforcement (13) is fixed to an end of the upper main column (12), and the clamping block (11) is arranged on the upper reinforcement (13); The lower column (2) comprises a lower main column (22) and a lower reinforcement (23); the lower reinforcement (23) is fixed to the end of the lower main column (22); and the clamping slot (21) is provided on the lower reinforcement (23).

8. A prefabricated column and a connection node of prefabricated columns according to any one of claims 1 to 6, characterized in that: A cavity (111) is vertically opened in the middle of the clamping block (11).

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