Prefabricated concrete column connecting structure

Abstract

The utility model discloses a prefabricated assembly type concrete column connecting structure which effectively solves the problem that calculation cannot pass due to the fact that the pulling force of a column is too large or the column and a foundation are damaged due to tension in the installation process by arranging a connecting plate to transmit the pulling force of the concrete column. The gap of the cup opening and the connecting structure are filled and wrapped through a concrete secondary pouring method, the outer surfaces of all stress components in the connecting structure are covered, corrosion is effectively reduced, and meanwhile the attractive effect is achieved. According to the utility model, the installation of the prefabricated column can be molded at one time, the installation precision does not need to be adjusted through other modes, the construction period in the hoisting process is greatly shortened, the utilization rate of a crane is increased, the arrangement of additional construction measures such as a cable rope is reduced, and the safety risk and labor cost on site are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering, and specifically relates to a prefabricated assembled concrete column connection structure. Background Technology

[0002] Prefabricated buildings are being promoted globally. Their advantages include the ability to industrialize the production of components in factories, allowing them to be directly installed on-site, which greatly shortens the construction period, reduces the need for on-site personnel, and lowers safety risks. The standardized production model of components manufactured in factories ensures higher quality than on-site production and also reduces material waste. Prefabricated components reduce the use of materials such as formwork and scaffolding, lowering rental costs.

[0003] Precast concrete columns are an important component of prefabricated buildings. Currently, the commonly used connection structure for precast concrete columns is the cup-mouth connection, which enables rapid installation of precast concrete columns. However, this type of structure has the following problems:

[0004] 1) The connection between the column and the foundation mainly relies on pouring grout into the reserved gap. This method is prone to insufficient friction when the column is subjected to a large pull-out force, which may lead to tensile failure of the column and the foundation.

[0005] 2) The verticality of the column is difficult to control during hoisting and installation, and special methods are needed to adjust the installation accuracy, which is time-consuming and labor-intensive.

[0006] CN220414675U discloses a precast concrete column with guide positioning bars, comprising an upper precast concrete column, a lower precast concrete column, and grouting sleeves. The upper precast concrete column contains multiple upper connecting reinforcing bars, which extend beyond the top of the column and connect to corresponding grouting sleeves. The connection between the upper and lower precast concrete columns is achieved by grouting the upper connecting reinforcing bars extending beyond the column top. This method can improve installation efficiency to some extent, but it has very high requirements for the positioning of the reinforcing bars, making it prone to positioning deviations, and it fails to solve the problem of excessive column pull-out force.

[0007] CN115045320A discloses a column base for a precast concrete column and its installation method, including a cup-shaped column foundation and steel shims, wherein the steel shims are set at the bottom of the cup-shaped column foundation. It also includes guy ropes, steel wedges, and hydraulic jacks. The installation of the precast column is completed through these three components. This method can solve the safety problem of precast concrete column installation, but the tools used are complex, the column leveling time is long, and it is greatly affected by the skill level of the installers. It also fails to solve the problem of excessive column pull-out force. Utility Model Content

[0008] To address the technical problems existing in the prior art, this utility model provides a precast assembled concrete column connection structure. This utility model's precast assembled concrete column connection structure includes a cup-shaped foundation, precast concrete piles, cup-shaped embedded parts, column embedded parts, and connecting plates. The cup-shaped reinforcement is located inside the cup-shaped foundation, and the cup-shaped embedded parts are located at the top of the cup-shaped foundation. Column embedded parts are installed on the precast concrete piles, which are inserted into the cup-shaped foundation. The connecting plates are connected to the corresponding cup-shaped embedded parts and column embedded parts.

[0009] Preferably, the cup-mouth embedded part, the column embedded part, and the connecting plate are a set of connecting and fixing parts, and more than 4 sets of connecting and fixing parts are set, which can be added as needed.

[0010] Preferably, a secondary pouring layer is also included, which covers the outer side of the cup-shaped embedded parts, column embedded parts, and connecting plates. After the precast concrete column is hoisted and the connecting plates are welded, the gaps in the cup-shaped parts and the connecting structure are filled and wrapped with concrete using a secondary pouring method. The outer surfaces of all load-bearing components in the connecting structure are covered, effectively reducing their degree of corrosion.

[0011] During the prefabrication process, several embedded parts are pre-installed at calculated locations for the concrete column. After the prefabricated concrete column is hoisted by a crane and placed into the foundation cup, it is precisely positioned and then welded and fixed to the top of the cup wall of the foundation cup using connecting plates, thus completing the installation. The purpose of the connecting plates is to transfer the pull-out force of the concrete column and fix the prefabricated concrete column, achieving a dual effect. The pull-out force of the concrete column is determined based on the calculation results, thereby calculating the length of the connecting plates, their welds, and the embedded parts. The quantity, size, thickness, and other information of each load-bearing component are determined through calculation. After hoisting and positioning are completed, construction personnel can quickly complete the welding of the connecting plates. Once the welding is completed, the prefabricated concrete column is fixed to the foundation cup, greatly saving construction time and reducing on-site safety risks and labor costs.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model effectively solves the problem of excessive column pull-out force causing calculation failure or tensile damage to the column and foundation during installation by setting a connecting plate to transfer the pull-out force of the concrete column.

[0014] 2. This utility model enables the installation of precast columns in one step without the need to adjust the installation accuracy through other means, which greatly reduces the construction period during hoisting, increases the utilization rate of cranes, and reduces the need for additional construction measures such as guy ropes, thereby reducing on-site safety risks and labor costs.

[0015] 3. The gaps and connecting structures of the cup opening are filled and wrapped by secondary concrete pouring. The outer surfaces of all load-bearing components in the connecting structure are covered, which effectively reduces corrosion and achieves an aesthetic effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] In the diagram: 1. Embedded part for cup opening, 2. Embedded part for column, 3. Connecting plate, 4. Cup opening foundation, 5. Cup opening reinforcement, 6. Precast concrete column, 7. Secondary pouring layer. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings:

[0020] like Figure 1 , Figure 2 As shown, the concrete cup-shaped foundation 4 is internally reinforced with cup-shaped reinforcement 5, which effectively increases the load-bearing capacity of the structure. A cup-shaped embedded part 1 is installed on the top surface of the cup-shaped foundation 4. During the production of the precast concrete column 6, column embedded parts 2 are pre-installed at corresponding positions. After the precast concrete column 6 arrives on site, its position is measured and precisely marked before installation. Based on the positioning data, the connecting plate 3 is welded to the corresponding position of the precast concrete column 6. Subsequently, the precast concrete column 6 is hoisted. After hoisting, the connecting plate 3 is welded to the cup-shaped embedded part 1 of the cup-shaped foundation. After the precast concrete column 6 is hoisted and the connecting plate 3 is welded, a secondary concrete pouring method is used to fill and enclose the connection structure and gaps between the cup-shaped embedded part 1, the column embedded part 2, and the connecting plate 3. The outer surfaces of the cup-shaped embedded part 1, the column embedded part 2, and the connecting plate 3 are all covered by a secondary pouring layer 7, effectively reducing corrosion and achieving an aesthetically pleasing effect.

[0021] In this embodiment, the pull-out force of the precast concrete column 6 itself is transmitted to the cup-shaped embedded part 1 through the column embedded part 2 and the connecting plate 3, so that the column and the cup-shaped foundation 4 form an integral whole and better transmit the pull-out force generated by the superstructure. The cup-shaped embedded part 1, the column embedded part 2, the connecting plate 3 and the connecting weld are all determined by calculation. The connecting plate 3 not only plays the role of transmitting the pull-out force, but also plays the role of determining the installation accuracy and speeding up the construction.

[0022] This utility model is applicable to the connection of precast concrete columns, walls, pool walls and other structural components. Other components of this connection structure are also within the protection scope of this utility model.

[0023] The above descriptions of the embodiments are only intended to help understand the principles of the embodiments of this utility model; those skilled in the art should understand that modifications and alterations can be made to the specific implementation methods and applications without departing from the protection scope and spirit of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A precast assembled concrete column connection structure, characterized in that: It includes a cup-shaped foundation, precast concrete piles, cup-shaped embedded parts, column embedded parts, and connecting plates; the cup-shaped reinforcement is set inside the cup-shaped foundation, and the cup-shaped embedded parts are set on the top of the cup-shaped foundation; the column embedded parts are set on the precast concrete piles, the precast concrete piles are inserted into the cup-shaped foundation, and the connecting plates are connected to the corresponding cup-shaped embedded parts and column embedded parts respectively.

2. The precast assembled concrete column connection structure according to claim 1, characterized in that: It also includes a secondary pouring layer, which covers the outer side of the cup-mouth embedded parts, column embedded parts, and connecting plates.

3. The precast assembled concrete column connection structure according to claim 1, characterized in that: The cup-mouth embedded part, column embedded part, and connecting plate are a set of connecting and fixing parts, and more than 4 sets of connecting and fixing parts are provided.

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