A reinforcing device for a beam-column joint of a building

Abstract

The utility model relates to reinforcing device technical field, and disclose a kind of building beam column joint reinforcing device, including clad steel reinforcing plate, the inside of clad steel reinforcing plate is equipped with joint reinforcing bolt hole, the inside of clad steel reinforcing plate is provided with structural adhesive, the outside of clad steel reinforcing plate is provided with notched bracket, the inside of notched bracket is equipped with threaded rod with screw thread, the inboard rotation of threaded rod is equipped with pressure plate.This building beam column joint reinforcing device, through the clad steel reinforcing plate, joint reinforcing bolt hole and structural adhesive being set, in use process, by the way of self-adapting punching, can be opened to the joint node of beam column, avoid to avoid miswear pipeline or main reinforcement, only for key stress point using bolt, other area utilizes the mode of sticking, can avoid the concrete local cracking caused by the dense arrangement bolt opening, avoid the situation of subsequent repair, ensure the structural stability of beam column joint.

Description

Technical Field

[0001] This utility model relates to the field of reinforcement device technology, specifically a reinforcement device for building beam-column joints. Background Technology

[0002] The beam-column joint is the connection between beams (horizontal members) and columns (vertical members) in a building structure. It is a key part for transferring loads, coordinating deformation, and ensuring the integrity and stability of the structure. In order to improve structural safety and extend service life, reinforcement devices are needed to strengthen the beam-column joint, such as the external steel reinforcement method, which wraps angle steel or steel plates around the joint to strengthen it.

[0003] In existing technologies, when reinforcing beam-column joints in buildings using the external steel reinforcement method, bolts are typically used. Holes are drilled in the concrete column, and the steel plate is fixed to the outside of the beam-column joint by matching the bolts with the drilled holes. This achieves reinforcement of the beam-column joint. However, in actual use, the bolt connection method, with its dense arrangement of bolts, can easily lead to localized cracking of the concrete if the drilling is too deep or the spacing is inappropriate. Therefore, it is necessary to improve the beam-column joint reinforcement device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a reinforcement device for building beam-column joints to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a building beam-column joint reinforcement device, comprising a steel-clad reinforcement plate, wherein the steel-clad reinforcement plate has joint reinforcement bolt holes inside, structural adhesive is provided inside the steel-clad reinforcement plate, a recessed frame is provided outside the steel-clad reinforcement plate, a threaded rod is threadedly installed inside the recessed frame, and a pressure plate is rotatably installed on the inner side of the threaded rod.

[0006] Preferably, the steel-clad reinforcing plate is composed of four steel plates welded together to form a rectangular frame, and its inner surface is provided with anti-slip corrugations with a corrugation depth of 0.5-1.2mm.

[0007] Preferably, the node reinforcement bolt holes adopt an adaptive drilling design and are embedded with rubber sealing rings.

[0008] Preferably, the structural adhesive is an epoxy resin structural adhesive, which is composed of 50% epoxy resin, 25% polyamide curing agent, 20% quartz powder, 2% silane coupling agent and 3% toughening agent.

[0009] Preferably, the outer side of the steel-clad reinforcing plate is provided with an anti-corrosion and fireproof composite coating with a total coating thickness of 2-3mm, consisting of an epoxy zinc-rich primer, a polyurethane intermediate coat, and an intumescent fireproof topcoat from the inside out.

[0010] Preferably, the outer side of the notch frame is provided with an internally threaded tube, and the threaded rod is threadedly installed inside the internally threaded tube provided on the outer side of the notch frame.

[0011] Compared with the prior art, this utility model provides a reinforcement device for building beam-column joints, which has the following beneficial effects: 1. This beam-column joint reinforcement device, through the use of steel-encased reinforcement plates, joint reinforcement bolt holes, and structural adhesive, can perform self-adaptive drilling (avoiding steel bars and metal pipelines using an electromagnetic rebar scanner) to drill holes at the joints of beams and columns. This avoids accidentally penetrating pipelines or main reinforcement bars. Bolts are only used at key stress points, while other areas are glued together. This avoids localized cracking of concrete caused by densely arranged bolt holes, preventing subsequent repairs and ensuring the structural stability of the beam-column joint.

[0012] 2. This building beam-column joint reinforcement device, through the setting of a notched frame, threaded rod and pressure plate, during use, by tightening the threaded rod, makes the pressure plate fit only against the outside of the steel-clad reinforcement plate, which can fix the edge of the steel-clad reinforcement plate and prevent it from lifting, effectively assisting the structural adhesive to cure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the appearance and structure of this utility model; Figure 2 This is a bottom view of the external structure of this utility model; Figure 3 This is a schematic diagram of the steel-clad reinforcing plate and its connection structure according to this utility model; Figure 4 This is a schematic diagram of the notched frame and its connection structure of the present invention.

[0014] In the diagram: 1. Steel reinforcement plate; 2. Node reinforcement bolt holes; 3. Structural adhesive; 4. Recessed frame; 5. Threaded rod; 6. Pressure plate. Detailed Implementation

[0015] 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.

[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] Example: Please see Figure 1-4 This utility model provides a technical solution: a building beam and column joint reinforcement device, including a steel-clad reinforcement plate 1, with joint reinforcement bolt holes 2 inside the steel-clad reinforcement plate 1, structural adhesive 3 inside the steel-clad reinforcement plate 1, and a notch frame 4 outside the steel-clad reinforcement plate 1. A threaded rod 5 is threaded inside the notch frame 4, and a pressure plate 6 is rotatably installed on the inner side of the threaded rod 5.

[0018] By prioritizing the use of structural adhesive 3 for bonding, replacing some bolts, and using bolts only at critical stress points while using adhesive in other areas, concrete cracking caused by dense bolt installation can be effectively avoided. At the same time, the use of recessed brackets 4, threaded rods 5, and pressure plates 6 to fix the steel reinforcement plate 1 can prevent the structural adhesive 3 from falling off before curing. The dual anchoring method of bolts and structural adhesive 3 can greatly improve the shear bearing capacity of the joint, making it suitable for areas with dense pipelines and avoiding the influence of external water pipes or steel bars embedded in the concrete.

[0019] Furthermore, the steel reinforcement plate 1 is composed of four steel plates welded together to form a rectangular frame. Its inner surface is provided with anti-slip corrugations with a corrugation depth of 0.5-1.2mm. The anti-slip corrugations and structural adhesive 3 form a mechanical and chemical double bond, which can improve the bonding strength compared with traditional pure bolt connection.

[0020] Furthermore, the node reinforcement bolt hole 2 adopts an adaptive drilling design and is embedded with a rubber sealing ring. The node reinforcement bolt hole 2, which adopts adaptive drilling technology, can be positioned and drilled according to the joint node where the steel reinforcement plate 1 is located, avoiding accidental drilling of pipelines or main reinforcement bars. This solves the safety hazards of traditional drilling methods in complex construction environments. The embedded rubber sealing ring can isolate moisture penetration, prevent bolt corrosion, extend the service life of the node, and is suitable for damp construction sites.

[0021] Furthermore, structural adhesive 3 is made of epoxy resin, which is composed of 50% epoxy resin, 25% polyamide curing agent, 20% quartz powder, 2% silane coupling agent and 3% toughening agent. This enables structural adhesive 3 to have wear resistance and shock absorption capabilities, while also repairing micro-cracks in concrete and blocking chloride ion corrosion.

[0022] Furthermore, the outer side of the steel reinforcement plate 1 is provided with an anti-corrosion and fireproof composite coating with a total coating thickness of 2-3mm. From the inside out, it consists of an epoxy zinc-rich primer, a polyurethane intermediate coat, and an intumescent fireproof topcoat. The epoxy zinc-rich primer prevents electrochemical corrosion of the steel plate through cathodic protection. The polyurethane intermediate coat is resistant to ultraviolet aging and is suitable for the open-air construction environment shown in the figure. The intumescent fireproof topcoat foams when exposed to fire to form a carbonized layer, preventing the structural adhesive from failing at high temperatures and causing a chain collapse.

[0023] Furthermore, an internally threaded tube is provided on the outer side of the notch frame 4, and the threaded rod 5 is threaded inside the internally threaded tube provided on the outer side of the notch frame 4. Through the internally threaded tube, the threaded rod 5 can rotate normally and drive the pressure plate 6 to squeeze and fix the outer side of the steel-clad reinforcing plate 1, thus assisting in the curing of the structural adhesive 3.

[0024] In actual operation, when this device is used, first use an angle grinder to grind the concrete surface of the beam-column joint area to remove the laitance layer, expose the solid aggregate, and form a rough interface. After cleaning the inside of the steel reinforcement plate 1, apply structural adhesive 3 evenly to the concrete surface and the inside of the steel reinforcement plate 1. Then install the steel reinforcement plate 1 onto the concrete surface. Drill holes at the joints of the steel reinforcement plate 1 and pass through the concrete layer. Bolts can then be used to fix the joints. After fixing, use a long-handled scraper or glue gun to squeeze the adhesive from the bottom of the steel plate upwards, ensuring no dead corners. At this time, place the notch frame 4 on the outside of the steel reinforcement plate 1, rotate and tighten the threaded rod 5, so that the pressure plate 6 is tightly attached to the outside of the steel reinforcement plate 1, limiting the corners of the steel reinforcement plate 1. Use a construction site support rod to support the notch frame 4 from the ground upwards, so that the notch frame 4 is firmly attached to the steel reinforcement plate 1. After the structural adhesive 3 has completely cured, the notch frame 4 can be disassembled.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A beam-column joint reinforcement device for buildings, comprising a steel-clad reinforcement plate (1), characterized in that: The steel-clad reinforcing plate (1) has a node reinforcing bolt hole (2) inside, and structural adhesive (3) is provided inside the steel-clad reinforcing plate (1). A notch frame (4) is provided outside the steel-clad reinforcing plate (1). A threaded rod (5) is installed inside the notch frame (4). A pressure plate (6) is rotatably installed on the inner side of the threaded rod (5).

2. The beam-column joint reinforcement device according to claim 1, characterized in that: The steel reinforcement plate (1) is composed of four steel plates welded together to form a rectangular frame. Its inner surface is provided with anti-slip corrugations with a corrugation depth of 0.5-1.2mm.

3. The beam-column joint reinforcement device according to claim 1, characterized in that: The node reinforcement bolt hole (2) adopts an adaptive drilling design and is embedded with a rubber sealing ring.

4. The beam-column joint reinforcement device according to claim 1, characterized in that: The outer side of the steel reinforcement plate (1) is provided with an anti-corrosion and fireproof composite coating with a total coating thickness of 2-3mm. From the inside to the outside, it consists of epoxy zinc-rich primer, polyurethane intermediate paint, and intumescent fireproof topcoat.

5. The beam-column joint reinforcement device according to claim 1, characterized in that: The recessed frame (4) is provided with an internally threaded tube on its outer side, and the threaded rod (5) is threadedly installed inside the internally threaded tube provided on the outer side of the recessed frame (4).

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