A beam-column joint concrete isolation device with different strengths
By designing support crossbars and partition support components, the problem of intercepting concrete of different strengths at beam-column joints was solved, achieving effective interception and material reuse, and improving construction quality and structural safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA HYDROPOWER ELEVENTH ENG BUREAU (ZHENGZHOU) CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-26
AI Technical Summary
During the concrete pouring process at beam-column joints in reinforced concrete structures, existing technologies struggle to effectively intercept concrete of varying strengths between beams and columns, leading to damage, displacement, or detachment of the intercepted sections, resulting in waste of high-strength concrete and reduced strength.
The system employs crossbars and partition support components to resist lateral pressure from concrete through support columns. Combined with anti-tilting support components, it prevents displacement. The spacing and height of the columns are adjusted using lateral and vertical adjustment functions to ensure effective interception. The system is constructed using waste steel bars and sleeve materials.
It enhances the concrete interception strength in beams, prevents waste of high-grade concrete, reduces quality defects, improves construction quality and structural safety, and enables the reuse of materials and green construction.
Smart Images
Figure CN224281963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a concrete isolation device for beam-column joints with different strengths. Background Technology
[0002] During the concrete pouring process of beam-column joints in reinforced concrete structures, due to factors such as the stress design of beam-column joints, the concrete strength used in structural columns is generally greater than that used in structural beams. Conventional pouring methods usually involve two steps: first, pouring the concrete for the structural columns, and then pouring the concrete for the structural beams.
[0003] In existing technologies, wire mesh is typically used to separate high-strength and low-strength concrete at the beam-column interface. This wire mesh is placed once within the reinforcing mesh and does not need to be removed. High-strength concrete is poured on one side of the wire mesh first, and then low-strength concrete is vibrated on the other side. However, in actual pouring and construction, according to the applicant's investigation and statistics, the reason why the different strength concrete in most beams failed to be effectively intercepted is that the strength of the dust-blocking measures is insufficient. Under the impact force, lateral pressure, and vibration of the first poured concrete, the intercepting parts are damaged, displaced, or even fall off. Utility Model Content
[0004] The purpose of this utility model is to provide a concrete isolation device for beam-column joints with different strengths in order to solve the above problems, as detailed below.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] This utility model provides a beam-column joint concrete isolation device with different strengths, including a support crossbar. The support crossbar is horizontally arranged, and multiple partition support components with lateral width adjustment function are sleeved on the periphery of the support crossbar. The partition support components all extend downward to resist the lateral pressure of the concrete in the first-poured area.
[0007] The two sides of the partition support assembly are combined with an anti-tilting support assembly that can be vertically slidably adjusted in height. This anti-tilting support assembly is placed on top of the upper steel reinforcement of the beam to prevent the support crossbar and partition support assembly from shifting or overturning due to concrete impact.
[0008] Preferably, both ends of the support crossbar are fixedly connected with limiting protrusions extending outward.
[0009] Preferably, a handle is fixedly connected to the upper part of the support crossbar.
[0010] Preferably, the handle is an inverted U-shaped steel bar.
[0011] Preferably, the partition support assembly includes a transverse sleeve and a support column. Multiple transverse sleeves are slidably sleeved on the outside of the support crossbar. The support column is fixedly connected to the lower periphery of the transverse sleeve and extends vertically downward. The anti-tilting support assembly is combined between the support columns on both sides.
[0012] Preferably, the anti-tilting support assembly includes an anti-tilting crossbar, a connecting sleeve, and a vertical sliding sleeve. The anti-tilting crossbar is horizontally positioned in front of the partition support assembly. The connecting sleeve is slidably fitted on both sides of the anti-tilting crossbar. A connecting rod is fixedly connected to the rear periphery of each connecting sleeve along the longitudinal direction. The rear end of each connecting rod is fixedly connected to a vertically positioned vertical sliding sleeve, and the vertical sliding sleeve is slidably fitted on the outside of the support column on the corresponding side.
[0013] Preferably, both ends of the anti-tilting crossbar are provided with anti-detachment protrusions extending outwards.
[0014] Preferably, the support columns on both sides are provided with anti-fall protrusions extending outward from the center of their outer perimeter.
[0015] Preferably, the supporting crossbar, the supporting column, the anti-tilting crossbar, the limiting protrusion, the anti-detachment protrusion, and the anti-fall protrusion are all made of steel bars.
[0016] Preferably, the transverse sleeve, the vertical sleeve, and the connecting sleeve are all circular sleeve components.
[0017] The aforementioned beam-column joint concrete isolation device, in practical application, allows the isolation support components to be erected on the sides of the wire mesh by placing the supporting crossbar on top of the reinforcing cage. This enables the support columns of the isolation support components to resist lateral pressure from the pre-poured concrete, enhancing the interception strength of the beam and ensuring effective interception of concrete of different strengths at the beam-column joint. This prevents mixed pouring, eliminates the risk of waste of high-strength concrete and reduced strength in high-strength areas, and reduces quality defects such as irregularities, holes, peeling, grout leakage, and cold joints at the joints. It improves the construction quality and appearance of the core nodes of the main structure, ensuring the safety and durability of the structure. Furthermore, because the isolation support components have a lateral width adjustment function, the spacing between multiple support columns can be adjusted by sliding the lateral sleeve along the supporting crossbar, ensuring that each support column can be inserted into the beam's main reinforcement intervals, thus enhancing the isolation support components. The anti-tilting support component offers excellent usability and flexibility. Because the supporting columns on both sides are combined with an anti-tilting support assembly that allows for vertical sliding adjustment of the working height, and the anti-tilting crossbar of the anti-tilting support assembly is positioned on top of the upper reinforcing bars of the beam, it prevents the supporting crossbar and the partition support assembly from shifting or overturning due to concrete impact. Furthermore, the anti-tilting support assembly has a vertical working height adjustment function. By sliding the vertical sliding sleeve along the supporting column, the vertical position of the anti-tilting support assembly can be adjusted, ensuring that the bottom of the supporting column can touch the bottom of the beam and that the anti-tilting support assembly is positioned on top of the upper reinforcing bars of the beam. This enhances the usability of the anti-tilting support assembly. Since the supporting crossbar, supporting columns, and anti-tilting support rod are all made from waste reinforcing bars, and the horizontal sliding sleeve, vertical sliding sleeve, and connecting sleeve can all be made from waste sleeves, material reuse is achieved, reducing resource waste and promoting energy conservation, environmental protection, and green construction.
[0018] The beneficial effects are as follows: 1. By placing the support crossbar on the top of the steel cage, the partition support components can be erected on the side of the wire mesh. This allows the support columns of the partition support components to resist the lateral pressure of the concrete in the pre-poured area, enhance the interception strength in the beam, ensure the effective interception of concrete of different strengths at the beam-column joint, prevent mixed pouring, eliminate the risk of waste of high-grade concrete and reduction of concrete strength in high-grade areas, and reduce quality defects such as irregular joints, holes, peeling, grout leakage, and cold joints. This improves the construction quality of the core nodes of the main structure and the appearance quality of the concrete body, ensuring the safety and durability of the structure.
[0019] 2. The isolation support assembly is equipped with a lateral width adjustment function. By using the lateral sliding sleeve to slide laterally along the support crossbar, the spacing between multiple support columns can be adjusted, so that the support columns can be inserted into the main reinforcement interval of the beam, thus improving the applicability and flexibility of the isolation support assembly.
[0020] 3. The two side support columns are combined with anti-tilting support components that can be vertically slidably adjusted for height. The anti-tilting crossbar of the anti-tilting support components is placed on top of the upper steel bars of the beam to prevent the support crossbar and the partition support components from shifting or overturning due to concrete impact.
[0021] 4. The anti-tilting support assembly is equipped with a vertical height adjustment function. By using the vertical sliding sleeve to slide vertically along the support column, the vertical position height of the anti-tilting support assembly can be adjusted, so that the bottom of the support column can touch the bottom of the beam. At the same time, it also ensures that the anti-tilting support assembly can be placed on top of the upper steel bars of the beam, thus improving the applicability of the anti-tilting support assembly.
[0022] 5. The supporting crossbars, supporting columns, and anti-tilting braces are all made from waste steel bars. The horizontal movement sleeves, vertical movement sleeves, and connecting sleeves can all be made from waste sleeves, realizing the reuse of materials, reducing resource waste, and promoting energy conservation, environmental protection, and green construction. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0024] Figure 1 This is an overall isometric schematic diagram of this utility model. Figure 1 ;
[0025] Figure 2 This is an overall isometric schematic diagram of this utility model. Figure 2 ;
[0026] Figure 3 This is a utility model Figure 1 Front view diagram;
[0027] Figure 4 This is a utility model Figure 1 A left-view diagram;
[0028] Figure 5 This is a utility model Figure 1 A top-down view.
[0029] The annotations in the attached figures are explained as follows:
[0030] 1. Support crossbar; 101. Handle; 102. Limiting protrusion; 2. Anti-tilting support assembly; 201. Vertical sliding sleeve; 202. Connecting rod; 203. Anti-detachment protrusion; 204. Connecting sleeve; 205. Anti-tilting crossbar; 206. Anti-fall protrusion; 3. Barrier support assembly; 301. Horizontal sliding sleeve; 302. Support column. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] See Figures 1-5 As shown, this utility model provides a beam-column joint concrete isolation device with different strengths, including a support crossbar 1. The support crossbar 1 is horizontally positioned, and multiple partition support components 3 with lateral width adjustment function are sleeved around the support crossbar 1. The partition support components 3 all extend downward to resist the lateral pressure of the concrete in the first-poured area. Specifically, the partition support component 3 includes a transverse sleeve 301 and a support column 302. Multiple transverse sleeves 301 are slidably sleeved on the outside of the support crossbar 1. The lower part of the outer periphery of the transverse sleeve 301 is fixedly connected to the support column 302, and the support column 302 extends vertically downward. At the same time, the two sides of the support crossbar 1 are also fixedly connected to the support column 302. Anti-tilting support components 2 are combined between the support columns 302. The purpose of this arrangement is to firstly resist the lateral pressure of the concrete in the pre-poured area by using the support columns 302 of the isolation support components 3, thereby enhancing the interception strength in the beam and ensuring the effective interception of concrete of different strengths at the beam-column joint, preventing mixed pouring, and eliminating the risk of waste of high-grade concrete and reduction of concrete strength in high-grade areas. At the same time, the isolation support components are equipped with a lateral width adjustment function. Then, by using the lateral sliding sleeve 301 to slide laterally along the support crossbar 1, the spacing between multiple support columns 302 can be adjusted, so that the support columns 302 can all be inserted into the main reinforcement interval of the beam.
[0033] See Figures 1-2As shown, an anti-tilting support component 2, which can be vertically slidably adjusted for height, is combined between the two side partition support components 3. This is used to prevent the support crossbar 1 and partition support components 3 from shifting or overturning due to concrete impact by placing the anti-tilting support component 2 on top of the upper reinforcing steel bars of the beam. Specifically, the anti-tilting support component 2 includes an anti-tilting crossbar 205, a connecting sleeve 204, and a vertical sliding sleeve 201. The anti-tilting crossbar 205 is horizontally positioned in front of the partition support component 3. Connecting sleeves 204 are slidably fitted on both sides of the anti-tilting crossbar 205. Connecting rods 202 are longitudinally extended and fixed to the rear periphery of each connecting sleeve 204. Each rear end is fixed with a vertically arranged vertical sliding sleeve 201, and the vertical sliding sleeve 201 is slidably sleeved on the outside of the corresponding side support column 302. The purpose of this arrangement is that, firstly, by placing the anti-tilting crossbar 205 of the anti-tilting support component 2 on the top of the upper reinforcement of the beam, it can prevent the support crossbar 1 and the partition support component 3 from shifting or overturning due to concrete impact. At the same time, the anti-tilting support component 2 is equipped with a vertical height adjustment function. Then, by sliding the vertical sliding sleeve 201 along the support column 302 vertically, the vertical position height of the anti-tilting support component 2 can be adjusted, so that the bottom end of the support column 302 can touch the bottom of the beam.
[0034] See Figures 1-5 As shown, the following optimizations have been made to this application. Specifically, both ends of the support crossbar 1 are externally extended and fixedly connected with limiting protrusions 102 to prevent the transverse sleeve 301 from slipping off the outer end of the support crossbar 1. Optionally, a handle 101 is fixedly connected to the upper part of the support crossbar 1 to facilitate moving the entire device by applying force by holding the handle 101. Further optionally, the handle 101 is an inverted U-shaped steel bar to facilitate the manufacturing and processing of the handle 101, and it can be fixedly connected to the support crossbar 1 by welding.
[0035] See Figures 1-5 As shown, both ends of the anti-tilting crossbar 205 are fixedly connected with anti-detachment protrusions 203 to prevent the connecting sleeve 204 from slipping off the outer end of the anti-tilting crossbar 205. Optionally, the outer center of the supporting columns 302 on both sides is fixedly connected with anti-fall protrusions 206 to prevent the vertical sleeve 201 from slipping off the outer end of the supporting column 302. Further optionally, the supporting crossbar 1, supporting column 302, anti-tilting crossbar 205, limiting protrusion 102, anti-detachment protrusion 203, and anti-fall protrusion 206 are all made of steel bars, and the horizontal sleeve 301, vertical sleeve 201, and connecting sleeve 204 are all circular sleeve components. This arrangement allows the entire device to be manufactured using waste steel bars and sleeves, achieving material reuse and reducing resource waste.
[0036] Using the above structure, in practical application, by placing the support crossbar 1 on top of the reinforcing cage, the partition support components 3 can be vertically installed on the side of the wire mesh. This allows the support columns 302 of the partition support components 3 to resist the lateral pressure of the pre-poured concrete, enhancing the interception strength in the beam and ensuring effective interception of concrete of different strengths at the beam-column joint. This prevents mixed pouring, eliminates the risk of waste of high-grade concrete and reduced strength in high-grade areas, and reduces quality defects such as irregularities, holes, peeling, grout leakage, and cold joints at joints. It improves the construction quality of the core nodes of the main structure and the overall appearance of the concrete, ensuring the safety and durability of the structure. Furthermore, because the partition support components have a lateral width adjustment function, the spacing between multiple support columns 302 can be adjusted by sliding the transverse sleeve 301 along the support crossbar 1. This ensures that all support columns 302 can be inserted into the beam's main reinforcement intervals, improving the applicability and flexibility of the partition support components. The anti-tilting support component 2, which can be vertically slidably adjusted for its working height, is combined between the two supporting columns 302. The anti-tilting crossbar 205 of the anti-tilting support component 2 is placed on top of the upper reinforcing steel bars of the beam, preventing displacement and overturning of the supporting crossbar 1 and the partition support component 3 due to concrete impact. Furthermore, the anti-tilting support component 2 has a vertical working height adjustment function. The vertical sliding sleeve 201 slides vertically along the supporting column 302, allowing adjustment of the vertical position of the anti-tilting support component 2. This ensures that the bottom of the supporting column 302 can touch the bottom of the beam and that the anti-tilting support component 2 can be placed on top of the upper reinforcing steel bars, improving its usability. Since the supporting crossbar 1, supporting column 302, and anti-tilting support are all made from waste reinforcing steel bars, and the horizontal sliding sleeve 301, vertical sliding sleeve 201, and connecting sleeve 204 can all be made from waste sleeves, material reuse is achieved, reducing resource waste and promoting energy conservation, environmental protection, and green construction.
[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A beam-column joint concrete isolation device with different strengths, comprising a supporting crossbar (1), characterized in that: The support crossbar (1) is horizontally arranged, and a plurality of partition support components (3) with lateral width adjustment function are sleeved around the support crossbar (1). The partition support components (3) all extend downward to resist the pressure on the side of the concrete in the first-poured area by means of the partition support components (3). The two sides of the partition support assembly (3) are combined with an anti-tilting support assembly (2) that can be vertically slidably adjusted for height, so as to prevent the support crossbar (1) and the partition support assembly (3) from shifting and overturning due to concrete impact by placing the anti-tilting support assembly (2) on the top of the upper reinforcement of the beam.
2. The beam-column joint concrete isolation device of different strengths according to claim 1, characterized in that: Both ends of the support crossbar (1) are fixedly connected to limit protrusions (102) extending outward.
3. The beam-column joint concrete isolation device of different strengths according to claim 2, characterized in that: A handle (101) is fixedly connected to the upper part of the support crossbar (1).
4. The beam-column joint concrete isolation device of different strengths according to claim 3, characterized in that: The handle (101) is an inverted U-shaped steel bar.
5. A beam-column joint concrete isolation device of different strengths according to claim 2, 3 or 4, characterized in that: The partition support assembly (3) includes a transverse sleeve (301) and a support column (302). Multiple transverse sleeves (301) are slidably sleeved on the outside of the support crossbar (1). The support column (302) is fixedly connected to the lower periphery of the transverse sleeve (301), and the support column (302) extends vertically downward. At the same time, the anti-tilting support assembly (2) is combined between the support columns (302) on both sides.
6. The beam-column joint concrete isolation device of different strengths according to claim 5, characterized in that: The anti-tilt support assembly (2) includes an anti-tilt crossbar (205), a connecting sleeve (204), and a vertical sliding sleeve (201). The anti-tilt crossbar (205) is horizontally positioned in front of the partition support assembly (3). The connecting sleeve (204) is slidably sleeved on both sides of the anti-tilt crossbar (205). The connecting sleeve (204) is longitudinally extended and fixedly connected to the rear periphery of the connecting sleeve (204). The rear end of the connecting rod (202) is fixedly connected to the vertically arranged vertical sliding sleeve (201), and the vertical sliding sleeve (201) is slidably sleeved on the outside of the corresponding side support column (302).
7. The beam-column joint concrete isolation device of different strengths according to claim 6, characterized in that: Both ends of the anti-tilting crossbar (205) are fixedly connected with anti-detachment protrusions (203) extending outward.
8. The beam-column joint concrete isolation device of different strengths according to claim 7, characterized in that: The supporting columns (302) on both sides are provided with anti-fall protrusions (206) extending outward from the center of the perimeter.
9. The beam-column joint concrete isolation device of different strengths according to claim 8, characterized in that: The supporting crossbar (1), the supporting column (302), the anti-tilting crossbar (205), the limiting protrusion (102), the anti-detachment protrusion (203), and the anti-fall protrusion (206) are all made of steel bars.
10. A beam-column joint concrete isolation device according to any one of claims 6-9, characterized in that: The horizontal moving sleeve (301), the vertical moving sleeve (201), and the connecting sleeve (204) are all circular sleeve components.