Reinforced concrete beam rear opening reinforcing structure
By using the side plate and bottom plate structure of the L-shaped reinforced single body at the hole behind the reinforced concrete beam, the problems of difficult construction, long cycle and high cost of traditional reinforcement methods are solved, and the reinforcement process is simplified and the efficiency is improved. Ensures reinforcement effect and structural stability.
Patent Information
- Application Number
- CN202420477435.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-12
AI Technical Summary
The prior art has problems such as difficult construction, long cycle and high cost in the process of reinforced reinforced concrete beams, which are difficult to meet the reinforcement needs.
The L-shaped reinforcement monomer is used, and the side plate is hooked on the side of the beam to be reinforced by the side plate, and the bottom surface of the beam is reinforced by the connected bottom plate, simplifying the reinforcement process and improving the reinforcement efficiency.
The reinforcement process is simplified, the reinforcement efficiency is improved, the reinforcement effect is ensured, the construction difficulty and cost are reduced, and the stability and reliability of the structure are improved.
Smart Images
Figure CN222478246U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building structure reinforcement, in particular to a reinforced concrete beam rear opening reinforcement structure. Background Art
[0002] Reinforced concrete structures, as the core pillar of modern construction, are widely used in various construction projects such as residential and office buildings. However, with the increasing diversification of people's living and office needs, the functional transformation and addition of existing buildings have become particularly important. In this process, operations such as smashing, breaking and crossing of main structures such as block walls have become frequent and critical. In order to meet the aesthetic requirements and ease of use of modern buildings, the net height and space requirements of buildings are constantly increasing. Therefore, equipment pipelines often need to pass through the main components, which usually involves opening holes in the main structure. However, the planning of these openings is often not fully foreseen in the architectural design stage, resulting in knocking out and opening operations only after the completion of the building.
[0003] These later hole-opening operations will inevitably affect the bearing capacity of the main structure and cause the risk of insufficient strength of the main structure. Traditional reinforcement methods, such as adding steel bars or pasting carbon fiber cloth on the inner wall around the hole, can improve the bearing capacity of the structure to a certain extent, but these methods have many inconveniences during the construction process, such as difficulty in construction, long cycle, high cost, etc., and it is difficult to meet the reinforcement needs of reinforced concrete beams to be reinforced at the hole location. Utility Model Content
[0004] The purpose of the utility model is to provide a reinforced concrete beam rear hole reinforcement structure in view of the defects of the prior art, which adopts an L-shaped reinforcement unit, hooks the side plate on the side of the beam to be reinforced and uses the connected bottom plate to reinforce the bottom surface of the beam, thereby simplifying the reinforcement process, improving the reinforcement efficiency and ensuring the reinforcement effect.
[0005] In order to achieve the above purpose, the following technical solutions are adopted:
[0006] A reinforced concrete beam rear opening reinforcement structure comprises at least two reinforcement units, the reinforcement units comprise side plates and a bottom plate, the plane where the side plates are located is perpendicular to the plane where the bottom plate is located to form an L-shaped structure, a sleeve is provided on the side of the side plate facing the beam to be reinforced, the sleeve is used to cooperate with a blind hole opened on the side of the beam to be reinforced so that the reinforcement unit is hooked in the blind hole, and the bottom plate is located below the beam to be reinforced; two reinforcement units located at the same horizontal position are staggered in the vertical direction, the two reinforcement units are located on the opposite sides of the beam to be reinforced, and their corresponding bottom plates are stacked vertically.
[0007] Furthermore, the side plates and the bottom plate are respectively provided with through holes, and the through holes are matched with chemical bolts.
[0008] Furthermore, the side plates and the bottom plate are respectively provided with a plurality of through holes, and in the same reinforcement unit, the chemical bolts correspond to the through holes one by one.
[0009] Furthermore, in the two reinforcement units located at the same horizontal position, the through holes on the two bottom plates corresponding to the two reinforcement units are correspondingly distributed, and the bolts matching the bottom plates pass through the through holes on one bottom plate and the through holes on the other bottom plate in sequence.
[0010] Furthermore, the side plate is a grid structure formed by two groups of inclined steel bars cross-distributed, and one end of the sleeve is fixed to a hole position of the grid structure.
[0011] Furthermore, each group of inclined steel bars includes two inclined steel bars that are spaced apart and distributed in parallel, and one end of all the inclined steel bars included in the two groups of inclined steel bars are respectively connected to the bottom plate.
[0012] Furthermore, the axes corresponding to the different groups of inclined steel bars are arranged vertically and crosswise.
[0013] Furthermore, the side plate also includes reinforcing steel bars, the axes of the reinforcing steel bars are parallel to the plane where the bottom plate is located, and the reinforcing steel bars are cross-distributed with the inclined steel bars.
[0014] Furthermore, the axis of the sleeve is perpendicular to the plane where the side plate is located, and an opening communicating with the internal channel of the sleeve is provided at the butt joint position between the side plate and the sleeve.
[0015] Furthermore, the bottom plates of the two reinforcement units located at the same horizontal position fit together and abut against the bottom surface of the beam to be reinforced.
[0016] In view of the current problem of difficulty in reinforcing the beam body after opening a hole, the utility model adopts an L-shaped reinforcement unit, hooks the side plate on the side of the beam to be reinforced and uses the connected bottom plate to reinforce the bottom surface of the beam, thereby simplifying the reinforcement process, improving the reinforcement efficiency and ensuring the reinforcement effect.
[0017] The utility model adopts two reinforcement units in the same group to be distributed on both sides of the beam to be reinforced, the bottom plates are superimposed and arranged to support the bottom surface of the reinforced beam, and the side plates are staggered and hooked on the side surface of the reinforced beam through sleeves, so that the two reinforcement units in the same group work together to improve the stability of the reinforced structure.
[0018] The utility model utilizes the characteristics and performance of regional constraints to effectively reduce the loss of strength and ductility caused by opening holes in the wall, ensures the bending and shear bearing capacity of the reinforced concrete beam, and at the same time alleviates the stress concentration around the opening and improves the structural reliability.
[0019] The utility model has the advantages of simple processing, convenient construction, low cost, reasonable force and improved efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1It is a schematic diagram of the rear opening reinforcement structure of the reinforced concrete beam in the embodiment of the utility model.
[0021] Explanation of the numbers (in order of first appearance): 1. Base plate, 2. Chemical bolts, 3. Side plate, 4. Sleeve, 5. Inclined steel bar, 6. Reinforcement steel bar. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0023] As described in the background technology, in the traditional method of reinforcing reinforced concrete beams after opening a hole, additional steel bars are added to the inner wall of the hole or carbon fiber cloth is pasted, which is difficult to construct and has low construction efficiency. Therefore, in this embodiment, a reinforced concrete beam rear opening reinforcement structure is provided, which adopts an integrated reinforcement monomer structure, and the side plate 3 of the reinforcement monomer is attached to the side of the beam to be reinforced to form a hook, and the side plate 3 is connected to the bottom plate 1 of the reinforcement monomer. The bottom plate 1 is located on the bottom surface of the beam to be reinforced to support the beam to be reinforced, thereby achieving the reinforcement of the reinforced concrete beam at the opening position. It only needs to open a blind hole to accommodate the sleeve 4 connected to the side, which reduces the construction difficulty and improves the construction efficiency.
[0024] The beam to be reinforced recorded in this embodiment is the reinforced concrete beam at the location where the rear opening reinforcement structure of the reinforced concrete beam is installed.
[0025] Figure 1 The schematic diagram of the reinforced concrete beam rear hole reinforcement structure is shown. The reinforced concrete beam rear hole reinforcement structure includes at least two reinforcement units, which include side plates 3 and bottom plates 1. The side plates 3 are provided with sleeves 4 for opening blind holes on the sides of the beams to be reinforced. Every two reinforcement units form a group. The two reinforcement units in the same group are arranged at the same horizontal position of the beams to be reinforced. The bottom plates 1 of the two reinforcement units in the same group are arranged in a superimposed manner. After the holes are opened, the reinforced concrete beams are reinforced to maintain the integrity of the beams and prevent cracking, and provide sufficient strength and rigidity after reinforcement.
[0026] A plurality of reinforcement units are used, each of which is composed of a side plate 3 and a bottom plate 1 to form an L-shaped structure. A sleeve 4 is provided on the side of the side plate 3 facing the beam to be reinforced, which is used to cooperate with the blind hole opened on the side of the beam, so that the reinforcement unit can be hooked in the blind hole to achieve the positioning and fixation of the reinforcement unit. The bottom plate 1 is located below the beam to be reinforced and contacts the bottom surface of the beam to provide additional support. The two reinforcement units located at the same horizontal position are staggered in the vertical direction and are located on the opposite sides of the beam. The corresponding bottom plates 1 are stacked vertically, which further enhances the reinforcement effect. Through the combined use of multiple reinforcement units, all-round reinforcement of the beam to be reinforced can be formed, thereby improving the bearing capacity and stability of the beam.
[0027] like Figure 1 As shown, two reinforcement units located at the same horizontal position are staggered in the vertical direction, which can increase the reinforcement level and strength. At the same time, the two reinforcement units are located on different sides of the beam to form a semi-embracing structure, thereby improving the overall stability.
[0028] It is understandable that the reinforcement unit is an integrated structure and is made in a prefabricated manner, which is convenient and quick to install on site, reducing the construction period and cost. By adjusting the size of the side plate 3 and the bottom plate 1 during prefabrication, it is suitable for reinforced concrete beams of different sizes and shapes, and has strong versatility and adaptability.
[0029] The side plates 3 and the bottom plate 1 in the reinforcement unit are provided with through holes for fixing with chemical bolts 2. The chemical bolts 2 correspond to the through holes one by one, and produce bonding force with concrete through chemical reaction, so as to tightly connect the reinforcement unit and the beam to be reinforced. The coordinated use of the chemical bolts 2 and the sleeves 4 ensures the tight connection between the reinforcement unit and the beam to be reinforced, effectively preventing the cracking and deformation of the beam to be reinforced.
[0030] In addition, in the two reinforcement units located at the same horizontal position, the through holes on the two base plates 1 corresponding to the two reinforcement units are distributed correspondingly, and the chemical bolts 2 cooperating with the base plates 1 pass through the through holes at corresponding positions on the two base plates 1 in sequence, thereby realizing the vertical connection and fixation of the two reinforcement units, so that they can cooperate in force and jointly support the bottom surface of the beam to be reinforced.
[0031] The side panel 3 adopts a grid structure formed by two groups of inclined steel bars 5 cross-distributed to enhance the shear and bending resistance of the side panel 3. At the same time, one end of the sleeve 4 is fixed to the hole position of the grid structure to ensure the stability and precision of the sleeve 4. Each group of inclined steel bars 5 includes two inclined steel bars 5 spaced apart and distributed in parallel, and one end of all inclined steel bars 5 included in the two groups of inclined steel bars 5 is respectively connected to the bottom plate 1, ensuring that each inclined steel bar 5 constituting the side panel 3 can be connected to the bottom plate 1 respectively, thereby improving its stability and integrity.
[0032] The axes corresponding to the different groups of inclined steel bars 5 are arranged vertically and crosswise. Specifically, one group of inclined steel bars 5 is arranged at an angle of 45° relative to the plane where the bottom plate 1 is located, and the other group of inclined steel bars 5 is arranged at an angle of 135° relative to the plane where the bottom plate 1 is located. After the corresponding inclined steel bars 5 of the different groups cross each other, the two inclined steel bars 5 and the bottom plate 1 form a triangular structure, thereby improving the strength of the formed side plate 3.
[0033] The side plate 3 further includes a reinforcing steel bar 6 , which is cross-distributed with the inclined steel bar 5 , and whose axis is parallel to the plane where the bottom plate 1 is located, thereby enhancing the rigidity and bearing capacity of the side plate 3 .
[0034] like Figure 1As shown, the axis of the sleeve 4 connected to the side panel 3 is perpendicular to the plane where the side panel 3 is located, and an opening connecting the internal channel of the sleeve 4 is provided at the docking position between the side panel 3 and the sleeve 4, forming an operable channel space to facilitate subsequent reinforcement operations. After the reinforcement operation is completed, this channel space can also be sealed.
[0035] Among them, the side plate 3 and the bottom plate 1 can be made of 10mm Q235 steel plates, the inclined steel bars 5 and the reinforcing steel bars 6 of the side plate 3 are made of 10mm thick Q235 steel bars, and are reinforced and spliced; the sleeve 4 is a steel cylinder.
[0036] The diameter of the blind hole opened on the side of the beam to be reinforced is larger than the outer diameter of the sleeve 4, and the diameter difference can be selected to be 3mm. Before the sleeve 4 is inserted into the matching blind hole, the blind hole needs to be cleaned in advance, and the modified epoxy adhesive is applied to the inner wall of the blind hole after cleaning. When the modified epoxy adhesive has not yet completely solidified, the sleeve 4 in the reinforced concrete beam rear opening reinforcement structure is inserted into the corresponding blind hole position, and the sleeves 4 corresponding to the integrated reinforced concrete beam rear opening reinforcement structure on both sides need to be inserted separately, and the excess extruded modified epoxy adhesive is cleaned after being stabilized.
[0037] In addition, the integrated reinforced concrete beam rear opening reinforcement structure needs to reserve the through hole position in advance according to the position of the chemical bolt 2, and at the same time, the corresponding part of the reinforced concrete beam also needs to reserve the bolt hole position matched with the chemical bolt 2, which corresponds to the through hole position set on the reinforced concrete beam rear opening reinforcement structure. After the sleeve 4 and the blind hole of the reinforced concrete beam rear opening reinforcement structure are stabilized, the chemical bolt 2 is used to further fix the reinforced concrete beam rear opening reinforcement structure and the reinforced concrete beam to be reinforced.
[0038] By utilizing the characteristics and performance of regional constraints, the loss of strength and ductility caused by openings in the wall can be effectively reduced, ensuring the bending and shear bearing capacity of the reinforced concrete beam. At the same time, the stress concentration around the opening is alleviated, and the structural reliability is improved.
[0039] The reinforced concrete beam rear hole reinforcement structure provided in this embodiment is easy to process, convenient to construct, low in cost, reasonable in force, and improves efficiency.
[0040] The above detailed description of the specific implementation of the utility model is only used as an example, and the utility model is not limited to the specific implementation described above. For those skilled in the art, any equivalent modification or substitution of the utility model is also within the scope of the utility model. Therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the utility model should be included in the scope of the utility model.
Claims
1. A reinforced concrete beam rear opening reinforcement structure, characterized in that: It comprises at least two reinforcement units, which comprise side plates and a bottom plate. The plane where the side plates are located is perpendicular to the plane where the bottom plate is located to form an L-shaped structure. A sleeve is provided on the side of the side plate facing the beam to be reinforced. The sleeve is used to cooperate with a blind hole opened on the side of the beam to be reinforced so that the reinforcement unit is hooked in the blind hole. The bottom plate is located below the beam to be reinforced. The two reinforcement units located at the same horizontal position are staggered in the vertical direction. The two reinforcement units are located on the opposite sides of the beam to be reinforced, and their corresponding bottom plates are stacked vertically.
2. The reinforced concrete beam rear opening reinforcement structure according to claim 1, characterized in that: The side plate and the bottom plate are respectively provided with through holes, and the through holes are matched with chemical bolts.
3. The reinforced concrete beam rear opening reinforcement structure according to claim 2, characterized in that: The side plates and the bottom plate are respectively provided with a plurality of through holes, and in the same reinforcement unit, the chemical bolts correspond to the through holes one by one.
4. The reinforced concrete beam rear opening reinforcement structure according to claim 1, 2 or 3, characterized in that: In the two reinforcement units located at the same horizontal position, the through holes on the two bottom plates corresponding to the two reinforcement units are correspondingly distributed, and the bolts matching the bottom plates pass through the through holes on one bottom plate and the through holes on the other bottom plate in sequence.
5. The reinforced concrete beam rear opening reinforcement structure according to claim 1, characterized in that: The side plate is a grid structure formed by two groups of inclined steel bars cross-distributed, and one end of the sleeve is fixed to the hole position of the grid structure.
6. The reinforced concrete beam rear opening reinforcement structure according to claim 5, characterized in that: Each group of inclined steel bars includes two inclined steel bars that are spaced apart and distributed in parallel, and one end of all the inclined steel bars included in the two groups of inclined steel bars is respectively connected to the bottom plate.
7. The reinforced concrete beam rear opening reinforcement structure according to claim 6, characterized in that: The axes corresponding to the different groups of inclined steel bars are arranged vertically and crosswise.
8. The reinforced concrete beam rear opening reinforcement structure according to claim 5, 6 or 7, characterized in that: The side plate also includes a reinforcing steel bar, the axis of the reinforcing steel bar is parallel to the plane where the bottom plate is located, and the reinforcing steel bar is cross-distributed with the inclined steel bar.
9. The reinforced concrete beam rear opening reinforcement structure according to claim 1, characterized in that: The axis of the sleeve is perpendicular to the plane where the side plate is located, and an opening communicating with the internal channel of the sleeve is provided at the butt joint position between the side plate and the sleeve.
10. The reinforced concrete beam rear opening reinforcement structure according to claim 1, characterized in that: The bottom plates of two reinforcement units located at the same horizontal position fit together and abut against the bottom surface of the beam to be reinforced.