Stable connection assembly type reinforced concrete beam column connection joint

Abstract

The utility model belongs to the technical field of reinforced concrete beam column connection, and particularly relates to a stable connection assembly type reinforced concrete beam column connection node which comprises a concrete column, limiting rods and stirrups, the limiting rods are arranged at the upper end and inside the concrete column, and the stirrups are arranged on the peripheries of the limiting rods. Through the arrangement of the cross-shaped steel rib column, the inserting column, the positioning block, the through hole, the bolt and the preliminary fixing groove, a constructor needs to pour the concrete column to the elevation of the bottom of the steel reinforced concrete upper column, then the positioning block is installed on the upper end face in the concrete column and fixed through the bolt, then the cross-shaped steel rib column is hoisted, and the concrete column is fixed through the bolt. The bottom cross-shaped structure of the cross-shaped steel rib column is embedded into the cross-shaped fixing groove during installation, the inserting column is inserted into the preliminary fixing groove, then the cross-shaped steel rib column is connected with the concrete column, and the structure does not need to be positioned in advance through combination of the preliminary fixing groove and the inserting set. And therefore, the mounting speed and the mounting accuracy during hoisting of the steel skeleton are improved.

Description

Technical Field

[0001] This utility model relates to the field of reinforced concrete beam-column connection technology, specifically a stable connection prefabricated reinforced concrete beam-column connection node. Background Technology

[0002] Reinforced concrete beams and columns are made of reinforced concrete. They can be used independently, or they can form a beam-slab floor system with a reinforced concrete slab, or a single-story or multi-story frame system with reinforced concrete columns. Reinforced concrete beams are typical bending members, subjected to both bending moment and shear force. Structures where multiple beams and columns are connected are called connection nodes, which are more important than ordinary beams and columns.

[0003] The existing technology has the following shortcomings: The existing technology, in the publication number CN210827834U, "A prefabricated reinforced concrete beam-column connection structure", "includes a prefabricated reinforced concrete column and a prefabricated reinforced concrete foundation beam made in one piece, wherein the prefabricated reinforced concrete foundation beam and the prefabricated reinforced concrete beam are interlocked and connected to each other, and the joint between the prefabricated reinforced concrete foundation beam and the prefabricated reinforced concrete beam is provided with a high-toughness fiber-reinforced cement-based material".

[0004] The above structure avoids the problem of weak overall integrity caused by bolted connections by treating the intersecting part of the beam and column as a whole. However, during the process of casting the beam and column and installing the steel column, since there is no structure designed for positioning and connection at the top of the concrete column and the bottom of the steel column, it takes a long time to position them together, resulting in slow installation speed and poor accuracy. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a stable connection for prefabricated reinforced concrete beam-column joints, solving the problems of slow installation speed and low precision of steel columns.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stable connection prefabricated reinforced concrete beam-column connection node, including a concrete column, a limiting rod, and stirrups, wherein the limiting rod is disposed at the upper end and inside of the concrete column, and the stirrups are disposed around the limiting rod.

[0007] A cross-shaped steel frame is provided on the inner side of the concrete column, and a positioning block is provided between the cross-shaped steel frame and the concrete column. A preliminary fixing groove is provided at the top of the concrete column.

[0008] The cross-shaped steel column also includes a crossbeam and a connecting column. The crossbeam is fixedly connected to the side end of the cross-shaped steel column, and the connecting column and the cross-shaped steel column are integrally die-cast.

[0009] As a preferred embodiment of the present invention, the positioning block further includes a cross-shaped fixing groove, a through hole, and a bolt. The cross-shaped fixing groove is formed on the upper end face of the positioning block, the through hole is formed at the intersection of the cross-shaped fixing groove and is vertically continuous, and the bolt passes through the positioning block.

[0010] As a preferred technical solution of this utility model, the cross steel column is columnar and perpendicular to the concrete column, and its upper and lower cross sections both adopt a cross-shaped structure.

[0011] As a preferred technical solution of this utility model, the positioning block is such that after the concrete column is connected, the position of the through hole corresponds to the position of the initial fixing groove and is on the same longitudinal axis.

[0012] As a preferred embodiment of this utility model, after the bottom of the cross steel column is inserted into the cross fixing groove, the insertion column is simultaneously inserted into the initial fixing groove.

[0013] As a preferred embodiment of this utility model, the upper edge of the cross-shaped fixing groove is chamfered, and the bolt establishes a movable connection with the concrete column after penetrating the positioning block.

[0014] As a preferred technical solution of this utility model, the cross steel column needs to be hoisted and kept on the same longitudinal axis as the concrete column during installation, and then slowly lowered for installation.

[0015] Compared with the prior art, this utility model provides a stable connection for prefabricated reinforced concrete beam-column joints, which has the following advantages:

[0016] A stable prefabricated reinforced concrete beam-column connection node is proposed. This node utilizes a cross-shaped steel frame column, insert columns, positioning blocks, through holes, bolts, and a preliminary fixing groove. To establish the connection, construction workers first pour the concrete column to the bottom elevation of the steel-concrete composite column. Then, the positioning blocks are installed on the upper inner surface of the concrete column and secured with bolts. Next, the cross-shaped steel frame column is hoisted. The bottom cross structure of the steel frame column is embedded in the cross fixing groove during installation, while the insert columns are inserted into the preliminary fixing groove. The cross-shaped steel frame column is then connected to the concrete column, and the remaining concrete is poured upwards until the node is complete. This setup and process simplify the connection process. Compared to traditional reinforced concrete beam-column connection nodes, the added positioning blocks and cross-shaped steel frame in this design allow for rapid fitting and connection establishment. The combination of the preliminary fixing groove and the insert assembly eliminates the need for pre-positioning, thereby improving the installation speed and accuracy of the steel frame during hoisting. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the cross-shaped steel column of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the positioning block and the concrete column of this utility model;

[0020] Figure 4 A schematic diagram showing the location and structure of the cross-shaped fixing groove in this utility model.

[0021] In the diagram: 1. Concrete column; 2. Limiting rod; 3. Stirrup; 4. Cross steel column; 401. Horizontal beam; 402. Inserted column; 5. Positioning block; 501. Cross fixing groove; 502. Through hole; 503. Bolt; 6. Preliminary fixing groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this embodiment: a stable connection prefabricated reinforced concrete beam-column connection node includes a concrete column 1, a limiting rod 2, and stirrups 3. The limiting rod 2 is set at the upper end and inside of the concrete column 1, and the stirrups 3 are set around the limiting rod 2.

[0024] A cross-shaped steel column 4 is installed inside the concrete column 1, and a positioning block 5 is installed between the cross-shaped steel column 4 and the concrete column 1. A preliminary fixing groove 6 is opened at the top of the concrete column 1.

[0025] The cross steel column 4 also includes a crossbeam 401 and a plug-in column 402. The crossbeam 401 is fixedly connected to the side end of the cross steel column 4, and the plug-in column 402 and the cross steel column 4 are integrally die-cast.

[0026] In this embodiment, the positioning block 5 also includes a cross fixing groove 501, a through hole 502 and a bolt 503. The cross fixing groove 501 is opened on the upper end face of the positioning block 5, the through hole 502 is opened at the intersection of the cross fixing groove 501 in the middle and is open from top to bottom, and the bolt 503 passes through the positioning block 5. The cross steel column 4 is columnar and perpendicular to the concrete column 1, and its upper and lower cross sections adopt a cross structure.

[0027] Specifically, such as Figure 1 and Figure 4As shown, the cross-shaped steel column 4 with its cross-shaped design fits into the cross-shaped fixing groove 501, allowing for quick positioning via insertion.

[0028] In this embodiment, after the positioning block 5 is connected to the concrete column 1, the through hole 502 corresponds to the position of the preliminary fixing groove 6 and is on the same longitudinal axis; after the bottom of the cross steel column 4 is inserted into the cross fixing groove 501, the plug-in column 402 is simultaneously inserted into the preliminary fixing groove 6.

[0029] Specifically, such as Figure 2 and Figure 3 As shown, by inserting the plug post 402 into the preliminary fixing groove 6, the cross steel column 4 can be prevented from shifting position after installation and positioning.

[0030] In this embodiment, the upper edge of the cross fixing groove 501 is chamfered, and the bolt 503 establishes a movable connection with the concrete column 1 after penetrating the positioning block 5; the cross steel column 4 needs to be hoisted and kept on the same longitudinal axis as the concrete column 1 during installation, and then slowly lowered for installation.

[0031] The working principle and usage process of this utility model are as follows: When establishing the connection of the structure, the construction personnel need to first pour the concrete column 1 to the bottom elevation of the steel-concrete upper column, then install the positioning block 5 on the upper surface inside the concrete column 1 and fix it with bolts 503, and then hoist the cross steel column 4. The bottom cross structure of the cross steel column 4 is embedded in the cross fixing groove 501 during installation, and the plug-in column 402 is inserted into the initial fixing groove 6. Then, the cross steel column 4 is connected to the concrete column 1, and then the concrete is poured upward until the construction of the node is completed.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stable prefabricated reinforced concrete beam-column connection node, comprising a concrete column (1), a limiting rod (2), and stirrups (3), wherein the limiting rod (2) is disposed at the upper end and inside of the concrete column (1), and the stirrups (3) are disposed around the limiting rod (2), characterized in that: A cross-shaped steel column (4) is provided on the inner side of the concrete column (1), and a positioning block (5) is provided between the cross-shaped steel column (4) and the concrete column (1). A preliminary fixing groove (6) is provided at the top of the concrete column (1). The cross steel column (4) also includes a crossbeam (401) and a plug-in column (402). The crossbeam (401) is fixedly connected to the side end of the cross steel column (4), and the plug-in column (402) and the cross steel column (4) are integrally die-cast.

2. The stable connection prefabricated reinforced concrete beam-column connection node according to claim 1, characterized in that: The positioning block (5) also includes a cross fixing groove (501), a through hole (502) and a bolt (503). The cross fixing groove (501) is opened on the upper end face of the positioning block (5). The through hole (502) is opened at the intersection of the cross fixing groove (501) and is open from top to bottom. The bolt (503) passes through the positioning block (5).

3. The stable connection prefabricated reinforced concrete beam-column connection node according to claim 1, characterized in that: The cross-shaped steel column (4) is columnar and perpendicular to the concrete column (1), and its upper and lower cross sections adopt a cross-shaped structure.

4. The stable connection prefabricated reinforced concrete beam-column connection node according to claim 2, characterized in that: After the positioning block (5) is connected to the concrete column (1), the position of the through hole (502) corresponds to the position of the initial fixing groove (6) and is on the same longitudinal axis.

5. A stable connection prefabricated reinforced concrete beam-column connection node according to claim 1, characterized in that: After the bottom of the cross steel column (4) is inserted into the cross fixing groove (501), the insertion column (402) is simultaneously inserted into the preliminary fixing groove (6).

6. A stable connection prefabricated reinforced concrete beam-column connection node according to claim 2, characterized in that: The upper edge of the cross-shaped fixing groove (501) is chamfered, and the bolt (503) establishes a movable connection with the concrete column (1) after penetrating the positioning block (5).

7. A stable prefabricated reinforced concrete beam-column connection node according to claim 1, characterized in that: The cross-shaped steel column (4) must be hoisted and kept on the same longitudinal axis as the concrete column (1) during installation, and then slowly lowered for installation.

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