Node reinforcing structure of concrete structural beam

Abstract

The utility model discloses a node reinforcing structure of a concrete structural beam, and belongs to the technical field of building reinforcement. Comprising a bending steel sleeve, a reinforcing angle plate, C-shaped channel steel and a chemical anchor bolt, the bent steel sleeve comprises a plate body, a bent connecting part, a bent butt joint part and a bent inserting part; the bending connection part, the bending butt joint part and the bending insertion part are fixedly bent on one side of the plate body; and the C-shaped channel steel is positioned between the bending steel sleeve and the reinforcing angle plate, and is fixedly connected with the structural beam body through the chemical anchor bolt. The bent steel sleeve and the structural beam body are connected and fixed in advance through the chemical anchor bolts, after the base plate is formed, the bent steel sleeve is sleeved with the C-shaped steel channel, and the C-shaped steel channel and the structural beam body form a wrapping type reinforcing structure, so that the reinforcing angle plate is stably connected with the bent steel sleeve and the C-shaped steel channel under the connection of the chemical anchor bolts; the strength reduction caused by too many holes in the structural beam body is relieved, and the mounting convenience of the reinforcing structure is also improved.

Description

Technical Field

[0001] This application relates to the technical field of building reinforcement, and more specifically, to a node reinforcement structure for a concrete structure beam. Background Art

[0002] In the case of the increasing saturation of newly built buildings, the urban housing structures are getting older and older, and the country pays more and more attention to the old structures. Due to various reasons such as many changes in use, increased loads, and natural aging of reinforced concrete structures due to environmental damage, the structural reinforcement and renovation projects will surely become a new direction in the construction field. To increase the flexural and tensile capacities of beams, the reinforcement form of adding bottom steel bars is usually considered.

[0003] The prior art document with the publication (announcement) number of CN213449591U provides a node reinforcement structure for reinforcing a reinforced concrete beam with channel steel. After the L-shaped steel plates are installed, U-shaped steel hoops are sleeved on the plate surface fixed on the reinforced concrete column. The U-shaped hoop plates wrap the two L-shaped steel plates and are then fixed on the reinforced concrete column through chemical anchor bolts. The purpose is to strengthen the connection between the L-shaped steel plates and the reinforced concrete column and ensure the reliability of the connection between the two.

[0004] Although the above prior art solution can achieve relevant beneficial effects through the existing structure, there are still the following defects: The channel steel, steel plates, L-shaped steel plates and U-shaped hoop plates need to be connected to the concrete building body through multiple chemical anchor bolts, resulting in cumbersome installation operations for wall openings.

[0005] In view of this, we propose a node reinforcement structure for a concrete structure beam. Utility Model Content

[0006] To improve the problems proposed in the above background art, this application provides a node reinforcement structure for a concrete structure beam.

[0007] The node reinforcement structure for a concrete structure beam provided by this application adopts the following technical solutions:

[0008] A node reinforcement structure for a concrete structure beam, comprising:

[0009] A bent steel sleeve, a reinforcing angle plate, a C-shaped channel steel and chemical anchor bolts;

[0010] The bent steel sleeve includes a plate body, a bent connecting portion, a bent docking portion and a bent inserting portion;

[0011] The bent connecting portion, the bent docking portion and the bent inserting portion are all fixedly bent on one side of the plate body;

[0012] The C-shaped channel steel is located between the bent steel sleeve and the reinforcing angle plate and is connected and fixed to the structural beam body through chemical anchor bolts.

[0013] By adopting the above technical solution, after the bent steel sleeve and the structural beam body are pre-connected and fixed through chemical anchor bolts to form a base plate, the C-shaped steel channel is sleeved outside the bent steel sleeve and forms a wrapped reinforcement structure with the structural beam body, so that the reinforcement gusset plate stably connects the bent steel sleeve and the C-shaped steel channel under the connection of the chemical anchor bolts, which not only alleviates the strength reduction caused by excessive opening of the structural beam body, but also improves the installation convenience of the reinforcement structure.

[0014] As an alternative solution of the technical solution of this application document, the bent steel sleeve is formed by cutting and bending a steel plate or pressing a steel plate.

[0015] By adopting the above technical solution, the bent steel sleeve formed by cutting and bending a steel plate or pressing a steel plate is used to reinforce and protect the joint connection part of the bent steel sleeve fitting the structural beam body.

[0016] As an alternative solution of the technical solution of this application document, V-grooves that can fit are opened on the side walls of both the bent docking parts.

[0017] By adopting the above technical solution, the V-grooves of the bent docking parts are fitted, so that the two bent steel sleeves symmetrically sleeved outside the structural beam body wrap and reinforce the joint connection part of the structural beam body, improving the stability of the reinforcement of the bent steel sleeve to the joint connection part of the structural beam body.

[0018] As an alternative solution of the technical solution of this application document, a plurality of movable connection grooves are opened outside the bent insertion parts, and there is a clearance fit between two adjacent bent insertion parts.

[0019] By adopting the above technical solution, the movable connection grooves opened outside the bent insertion parts can slide and adjust with the chemical anchor bolts, which can avoid adjusting the position of the chemical anchor bolt holes and improve the installation convenience of the bent steel sleeve. And there is a clearance fit between the two bent steel sleeves through the bent insertion parts, so that the two bent steel sleeves stably wrap and reinforce the joint connection part of the structural beam body under the connection of the chemical anchor bolts.

[0020] As an alternative solution of the technical solution of this application document, a compensation plate is fixedly welded to one side of the reinforcement gusset plate.

[0021] By adopting the above technical solution, the compensation plate compensates and fills the gap between the C-shaped steel channel and the bent connection part, improving the strength support of the bent connection part.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. In this application, by pre - connecting and fixing the bent steel sleeve and the structural beam body through chemical anchor bolts to form a base plate, and then sleeving the C - shaped steel channel outside the bent steel sleeve to form a wrapped reinforcement structure with the structural beam body, the reinforcement angle plate can stably connect the bent steel sleeve and the C - shaped steel channel under the connection of chemical anchor bolts. This not only alleviates the strength reduction caused by excessive drilling of the structural beam body but also improves the convenience of installing the reinforcement structure.

[0024] 2. In this application, by using the movable connection groove opened on the outside of the bent insertion part, which can slide and adjust with the chemical anchor bolt, it is possible to avoid adjusting the position of the chemical anchor bolt hole groove, improve the convenience of installing the bent steel sleeve, and the two bent steel sleeves are in clearance fit through the bent insertion part. Under the connection of chemical anchor bolts, the two bent steel sleeves stably wrap and reinforce the joint of the structural beam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the node reinforcement structure of a concrete structural beam disclosed in a preferred embodiment of this application;

[0026] Figure 2 It is a schematic diagram of the clearance fit state of the bent steel sleeve structure of the node reinforcement structure of a concrete structural beam disclosed in a preferred embodiment of this application;

[0027] Figure 3 It is a schematic diagram of the unfolded state of the bent steel sleeve structure of the node reinforcement structure of a concrete structural beam disclosed in a preferred embodiment of this application;

[0028] Figure 4 It is a schematic diagram of the reinforcement angle plate structure of the node reinforcement structure of a concrete structural beam disclosed in a preferred embodiment of this application;

[0029] Reference numeral description in the figure: 1, bent steel sleeve; 2, reinforcement angle plate; 3, C - shaped steel channel; 4, chemical anchor bolt; 11, plate body; 12, bent connection part; 13, bent butt - joint part; 14, bent insertion part; 15, V - groove; 21, compensation plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes this application in detail with reference to the accompanying drawings of the specification.

[0031] Refer to Figures 1-4 , in the node reinforcement structure of a concrete structural beam recorded in the embodiment of this application, a node reinforcement structure of a concrete structural beam includes: a bent steel sleeve 1, a reinforcement angle plate 2, a C - shaped steel channel 3, and a chemical anchor bolt 4;

[0032] The bent steel sleeve 1 includes a plate body 11, a bent connection part 12, a bent butt - joint part 13, and a bent insertion part 14;

[0033] The bent connecting portion 12, the bent docking portion 13, and the bent insertion portion 14 are all fixedly bent on one side of the plate body 11;

[0034] The C-shaped channel steel 3 is located between the bent steel sleeve 1 and the reinforcing angle plate 2, and is fixedly connected to the structural beam body through chemical anchor bolts 4.

[0035] For the node reinforcement structure of the concrete structural beam, after pre-connecting and fixing the bent steel sleeve 1 and the structural beam body through chemical anchor bolts 4 to form a base plate, the C-shaped channel steel 3 is sleeved outside the bent steel sleeve 1 to form a wrapped reinforcement structure with the structural beam body. So that the reinforcing angle plate 2 stably connects the bent steel sleeve 1 and the C-shaped channel steel 3 under the connection of the chemical anchor bolts 4, which not only alleviates the strength reduction caused by excessive opening of the structural beam body, but also improves the convenience of installing the reinforcement structure.

[0036] Refer to Figure 2 and Figure 3 In the node reinforcement structure of the concrete structural beam recorded in the embodiment of the present application, the bent steel sleeve 1 is formed by cutting and bending a steel plate or pressing a steel plate.

[0037] For the node reinforcement structure of the concrete structural beam, by using a steel plate cut and bent or a steel plate pressed to form the bent steel sleeve 1, the bent steel sleeve 1 fits the node connection of the structural beam body for reinforcement and protection.

[0038] Refer to Figure 3 and Figure 1 In the node reinforcement structure of the concrete structural beam recorded in the embodiment of the present application, V-grooves 15 that can fit are provided on the side walls of both bent docking portions 13, and a plurality of movable connection grooves are provided on the outside of the bent insertion portions 14, and there is a clearance fit between adjacent two bent insertion portions 14.

[0039] For the node reinforcement structure of the concrete structural beam, through the fitting of the V-grooves 15 of the bent docking portions 13, the two bent steel sleeves 1 symmetrically sleeved and installed outside the structural beam body wrap and reinforce the node connection of the structural beam body, improving the stability of the reinforcement of the bent steel sleeve 1 to the node connection of the structural beam body. And the movable connection grooves provided on the outside of the bent insertion portions 14 can slide and adjust with the chemical anchor bolts 4, which can avoid adjusting the hole groove positions of the chemical anchor bolts 4 and improve the convenience of installing the bent steel sleeve 1. And there is a clearance fit between the two bent steel sleeves 1 through the bent insertion portions 14, so that the two bent steel sleeves 1 stably wrap and reinforce the node connection of the structural beam body under the connection of the chemical anchor bolts 4.

[0040] Refer to Figure 4 and Figure 1 In the node reinforcement structure of the concrete structural beam recorded in the embodiment of the present application, a compensation plate 21 is fixedly welded to one side of the reinforcing angle plate 2.

[0041] The node reinforcement structure of the concrete structure beam compensates and fills the gap between the C-channel steel 3 and the bent connection part 12 by using the compensation plate 21, so as to improve the strength support of the bent connection part 12.

[0042] Working principle: First, the two bent steel sleeves 1 are sleeved outside the node connection of the structural beam body, and the bent docking part 13 in the bent steel sleeve 1 is thread-connected by ordinary bolts, so that the two bent steel sleeves 1 form a sleeve structure and are sleeved outside the node connection of the structural beam body for limit;

[0043] Next, for the position of the external hole groove of the bent steel sleeve 1, a hole groove for installing the chemical anchor bolt 4 is opened outside the structural beam body by a gun drill, and the chemical anchor bolt 4 is embedded in the opened hole groove, and the bent insertion part 14 with clearance fit in the bent steel sleeve 1 is pre-connected to the structural beam body to realize the connection and fixation of the bent steel sleeve 1 and the structural beam body;

[0044] Then, the C-channel steel 3 is sleeved outside the cross beam of the structural beam body, the bent connection part 12 in the bent steel sleeve 1 pre-connected and fixed outside the structural beam body is sleeved, the reinforcement angle plate 2 is aligned with the holes of the installed C-channel steel 3, and the chemical anchor bolt 4 is inserted to connect the reinforcement angle plate 2 with the structural beam body, and the C-channel steel 3 and the bent steel sleeve 1 are pressed and closely fitted to reinforce the structural beam body in a wrapped manner.

Claims

1. A node reinforcement structure for a concrete structural beam, characterized in that: include: Bending steel sleeve (1), reinforcing angle plate (2), C-shaped channel steel (3) and chemical anchor bolt (4); The bent steel sleeve (1) comprises a plate body (11), a bent connecting portion (12), a bent butt joint portion (13) and a bent plug-in portion (14); The bent connecting portion (12), the bent docking portion (13) and the bent plug-in portion (14) are all fixedly bent on one side of the plate body (11); The C-shaped channel steel (3) is located between the bent steel sleeve (1) and the reinforced angle plate (2), and is connected and fixed to the structural beam body via chemical anchor bolts (4).

2. The node reinforcement structure of the concrete structural beam according to claim 1, characterized in that: The bent steel sleeve (1) is formed by cutting and bending a steel plate or by pressing a steel plate.

3. The node reinforcement structure of the concrete structural beam according to claim 1, characterized in that: The side walls of the two bent butt joint portions (13) are both provided with V-grooves (15) capable of fitting together.

4. The node reinforcement structure of the concrete structural beam according to claim 1, characterized in that: The outside of the bending plug-in parts (14) is provided with a plurality of movable connection grooves, and two adjacent bending plug-in parts (14) are clearance-matched.

5. The node reinforcement structure of the concrete structural beam according to claim 1, characterized in that: A compensation plate (21) is fixedly welded to one side of the reinforcement angle plate (2).

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