Socket-and-splice plate mesh device and construction method for preventing concrete slurry leakage at beam-column joints

Abstract

The present invention provides a socket mesh device for preventing concrete leakage at beam-column joints, comprising a handle and a plurality of intercepting rods, a flexible telescopic steel wire mesh being arranged between two adjacent intercepting rods, the intercepting rods being a pair of rod bodies with clamping buckles, the intercepting rods being slidably positioned on the handles by means of sliding buckles, and the intercepting rods being opened and closed and clamped and fixed on the steel skeleton by means of an opening and closing assembly and the clamping buckles. The present invention also provides a construction method using the socket mesh device for preventing concrete leakage at beam-column joints. The present invention improves the installation stability of the device by arranging a slidable and openable intercepting rod on the handle, solves the leakage problem at the beam-column joint, and can fine-tune the spacing of the intercepting rods, thereby enhancing the versatility of the device; by means of the opening and closing assembly, the opening and closing of two rod bodies with clamping buckles on both sides of the steel skeleton at the beam-column joint are controlled, thereby enhancing the interception effect, and the operation is simple, and the device can be used cyclically.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete slurry leakage prevention construction, and specifically relates to a spigot plate mesh device for concrete slurry leakage prevention at a beam-column node and a construction method. Background Art

[0002] In recent years, with the development of the construction industry, the height of building structures has become higher and higher, and the application of concrete frame structures in large public buildings has become more and more extensive. According to the structural design and specification requirements, the concrete strength design at the beam-column joint is inconsistent. During construction, the concrete in the core area of ​​the beam-column joint is poured twice, first pouring the column and then pouring the beam. However, due to the dense steel bars at the beam-column joints, complex nodes, and small construction space, the interception problem of high and low grade concrete at the beam-column joints has become a long-standing technical problem.

[0003] The existing technology usually uses a wire mesh and welded steel bar head fixation method for interception. This method is also a commonly used interception method for the post-cast strip of the foundation slab. In actual construction, if the wire mesh is not reinforced in place, it is easy to cause leakage. The color difference is large after the concrete is formed and demolded, and serious construction cold joints will appear, affecting the safety of the concrete structure. At the same time, it is easy to weld the main reinforcement when welding steel bars, which poses a quality risk. The existing technology also uses plate-type blocking methods such as templates or wooden beams, but this method is not standardized and has a poor interception effect. After the template or wooden beam is inserted, it is extremely difficult to clean it, which has an adverse effect on the strength of the node concrete.

[0004] There is an interception tool that can improve the interception effect of preventing mixed pouring of concrete at beam-column joints. Chinese utility model application number CN202220914357.0 discloses a reusable concrete intercepting tool, which realizes interception between concretes of different grades by arranging a quick and easy closing net under a fork-shaped socket plate. The tool has a simple structure, is easy to disassemble and assemble, and can be reused. However, the quick and easy closing net and the socket plate of the tool are non-adjustable fixed structures, and the spacing of the vertical intercepting rods cannot be adjusted according to the spacing of the steel bars. Moreover, the tool is fixed to the steel bars by tying wire, which is cumbersome to operate, and whether the fixation is firm still depends on the effect of manual tying. If the reinforcement is not in place, the vertical steel bars serving as the intercepting rods will shift due to gravity after tying, and there is still a risk of leakage.

[0005] Therefore, there is an urgent need for a beam-column node concrete leakage prevention socket mesh device and construction method that has good interception effect, is firmly fixed, is easy to operate and disassemble, does not affect the safety of the concrete structure, and can flexibly adjust the spacing between vertical interception rods. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies in the prior art and provide a socket mesh device and a construction method for preventing concrete leakage at beam-column joints, aiming to solve the problems of existing concrete interception devices and construction methods for beam-column joints, such as leakage caused by insufficient reinforcement, easy welding of main reinforcement by welding steel bars, poor plate-type blocking effect and difficulty in dismantling and cleaning, cumbersome operation, and inability to flexibly adjust the spacing between interception rods.

[0007] In order to solve the above technical problems, the present invention provides a socket mesh device for preventing concrete leakage at a beam-column joint, comprising a handle and a plurality of intercepting rods, wherein the intercepting rod is slidably installed on the handle through a sliding buckle at the top, and a flexible telescopic steel wire mesh is arranged between two adjacent intercepting rods. The intercepting rod is a pair of rod bodies with clamping buckles, and a tensioning assembly is arranged between the top of the rod body and the sliding buckle. The intercepting rod is slidably positioned on the handle through the sliding buckle, and the intercepting rod is tensioned and clamped on the steel skeleton through the tensioning assembly and the clamping buckle.

[0008] In some embodiments, the opening and closing assembly includes a cross bar and a button, the cross bar is arranged between the sliding buckle and the intercepting rod, the top ends of a pair of the rod bodies are rotatably installed on both ends of the cross bar, the button is connected to the cross bar through a spring and clamps a pair of the rod bodies, and the pair of the rod bodies are rotated and opened and closed by the button and the spring.

[0009] Furthermore, in some embodiments, a pair of driving rods are rotatably mounted between the tops of the pair of rod bodies, and the rotational connection of the pair of driving rods is connected to the bottom end of the spring.

[0010] Furthermore, in some embodiments, a limiting structure adapted to the button is provided on the top of a pair of the rods.

[0011] In some embodiments, two adjacent clamping buckles are connected via an expansion joint.

[0012] In some embodiments, the rod body is provided with a mounting slot adapted to the flexible telescopic steel wire mesh.

[0013] The present invention also provides a construction method using the above beam-column node concrete slurry leakage prevention spigot plate mesh device, comprising:

[0014] Adjust the spacing of the intercepting rods and the state of the flexible telescopic steel wire mesh according to the spacing of the on-site beam reinforcement skeleton, and fix them with fasteners. Insert the socket mesh device obliquely onto the beam reinforcement skeleton, operate the tensioning and closing components to open each pair of rods and clamp the beam reinforcement, then adjust the tightness of the flexible telescopic steel wire mesh and bind it with wire, pour concrete, and operate the tensioning and closing components to remove the socket mesh device when the concrete is initially set.

[0015] In some embodiments, the steps include:

[0016] S1. After the beam reinforcement binding is accepted, the column formwork is closed;

[0017] S2. Loosen the fasteners, adjust the sliding buckle to make the interception rod move horizontally on the handle according to the spacing of the on-site beam reinforcement, adjust the spacing of the interception rods and the state of the flexible telescopic wire mesh, and then tighten the fasteners to fix the position of the interception rod;

[0018] S3, operate the opening and closing components in sequence to open the interception rod, insert the open spigot plate mesh device into the beam reinforcement skeleton, then close the interception rod, clamp the beam reinforcement by clamping buckles, adjust the state of the flexible telescopic wire mesh and fix it with wire ties;

[0019] S4. Pour concrete. When the concrete is initially set, operate the opening and closing assembly to open the intercepting rod and take out the spigot plate mesh device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The socket mesh device and construction method for preventing concrete slurry leakage at the beam-column node provided by the present invention comprises a slidable and expandable intercepting rod on the handle, a sliding buckle is used to realize the sliding positioning of the intercepting rod on the handle, an expansion and contraction assembly and a clamping buckle are used to realize the expansion and contraction and clamping fixation of the intercepting rod on the steel skeleton, and a flexible telescopic steel mesh between the intercepting rods is used to intercept concrete slurry, thereby improving the installation stability of the device and limiting the disassembly and assembly range of the device to the narrower areas on both sides of the steel skeleton of the beam-column node on the socket inclined surface, thereby solving the slurry leakage problem at the beam-column node and ensuring the quality of concrete construction at the node. In addition, the construction personnel can fine-tune the spacing of the intercepting rods according to the different spacings of the steel bars on site, thereby enhancing the versatility of the device.

[0022] 2. The beam-column joint concrete leakage prevention socket mesh device and construction method provided by the present invention controls the opening and closing of two rods with clamping buckles on both sides of the beam-column joint steel bar skeleton by operating the opening and closing components, so that the intercepting rod can be quickly opened after the steel bars of the beam-column joint are tied, and inserted into the beam steel bar skeleton, and the curved clamping buckle is used to increase the friction with the beam steel bars, thereby improving the installation firmness of the intercepting rod and enhancing the intercepting effect, while simplifying the disassembly and assembly steps, and the operation is simple, and the device can be used in a turnover manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the arrangement of the spigot plate mesh device for preventing concrete slurry leakage at the beam-column joint provided in an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the spigot plate mesh device for preventing concrete slurry leakage at the beam-column joint provided in an embodiment of the present invention;

[0025] Figure 3 for Figure 2 Sectional view of the middle sliding adjustment structure 1-1;

[0026] Figure 4 A side view of the overall structure of a spigot plate mesh device for preventing concrete slurry leakage at a beam-column joint provided in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the structure of the interception rod in a closed state provided by an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of the interception rod in an open state provided by an embodiment of the present invention;

[0029] Figure 7 for Figure 5 An enlarged view of the structure at point A with the flexible telescopic wire mesh removed.

[0030] Among them, 1. column reinforcement; 2. beam reinforcement; 3. socket mesh device; 4. handle; 5. cross bar; 6. reserved groove; 7. sliding buckle; 8. fastening bolt; 9. first pin shaft; 10. button; 11. intercepting rod; 12. clamping buckle; 13. flexible telescopic wire mesh; 14. spring; 15. driving rod; 16. second pin shaft; 17. third pin shaft; 18. limit point. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0033] The present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited thereto.

[0034] The present invention provides a beam-column node concrete leakage prevention socket mesh device 3, comprising a handle 4 and a plurality of intercepting rods 11, the intercepting rod 11 being slidably installed on the handle 4 through a sliding buckle 7 on the top, a flexible telescopic steel wire mesh 13 being arranged between two adjacent intercepting rods 11, the intercepting rod 11 being a pair of rod bodies with clamping buckles 12, a tensioning assembly being arranged between the top of the rod body and the sliding buckle 7, the intercepting rod 11 being slidably positioned on the handle 4 through the sliding buckle 7, and the intercepting rod 11 being tensioned and clamped on the steel skeleton through the tensioning assembly and the clamping buckle 12.

[0035] like Figures 1 to 7As shown, the present application forms an intercepting rod by arranging a sliding buckle 7 and an opening and closing assembly on the top of a pair of rod bodies with clamping buckles 12, and arranging a plurality of slidable and openable intercepting rods on the handle 4, and utilizing the sliding of the sliding buckle 7 on the handle 4 to achieve fine adjustment of the spacing between the intercepting rods 11, and utilizing the opening and closing assembly to control the opening and closing of a pair of rod bodies with clamping buckles 12, which are opened and clamped from both sides of the steel frame located on the same vertical plane, which is equivalent to an intercepting rod acting on a vertical steel mesh, thereby achieving the disassembly and assembly of the intercepting rod 11 on the steel frame, and the operation of the intercepting rod 11 The space is concentrated on the sliding buckle 7 and the opening and closing assembly at the top, which is easy to operate. The operator can fine-tune the distance between the interception rods 11 according to the different spacing of the steel bars on site, and the flexible telescopic wire mesh 13 between the interception rods 11 can also be fine-tuned according to the spacing of the interception rods 11, effectively intercepting the concrete slurry. At the same time, the activity range of the interception rods 11 is also limited to the narrower area on both sides of the steel skeleton of the beam-column node on the socket slope, which improves the interception effect and avoids leakage of the beam-column node to the greatest extent, ensuring the quality of the node concrete construction. The device is easy to disassemble and assemble and can be used in a turnover manner. Figure 2 , Figure 5 and Figure 6 As shown, the curved structure of the clamping buckle 12 increases the friction between the clamping buckle 12 and the steel bar skeleton of the beam, so that the clamping buckle 12 is not easily separated from the steel bar skeleton, the installation is more secure, and the interception is more secure and reliable.

[0036] In some preferred embodiments, the opening and closing assembly includes a cross bar 5 and a button 10. The cross bar 5 is arranged between the sliding buckle 7 and the intercepting rod 11. The top ends of a pair of rod bodies are rotatably mounted on both ends of the cross bar 5. The button 10 is connected to the cross bar 5 through a spring 14 and clamps the pair of rod bodies. Figure 3 , Figure 5 and Figure 6 As shown, a pair of rod bodies are rotated and opened and closed by a button 10 and a spring 14. The operator adjusts the distance between the cross bar 5 and the button 10, that is, the length of the spring 14, by pressing the button 10 along the extension direction of the spring 14. Figure 5 As shown, in the natural state, the original state of the pair of rods is close together, and the button 10 is clamped between the pair of rods. At this time, the spring 14 is in a natural state without elasticity, as shown in FIG. Figure 6 As shown, the operator presses the button 10 upward, compressing the spring 14, and the upward movement of the button 10 causes the pair of rods to open. When the button 10 is released, the spring 14 rebounds, and the button 10 returns to the initial position, causing the pair of rods to return to and remain as shown. Figure 5 Shown in the closed and clamped state.

[0037] In some preferred embodiments, a pair of driving rods 15 are rotatably mounted between the tops of the pair of rod bodies, and the rotational connection of the pair of driving rods 15 is connected to the bottom end of the spring 14, such as Figure 7As shown, the driving rod 15 limits the pushable range of the button 10 to the extension and contraction direction of the spring 14, thereby improving the operability of the opening and closing of the intercepting rod 11 to the greatest extent.

[0038] In some specific extended embodiments, a pair of rods are provided with a limiting structure adapted to the button 10 at the top, such as Figure 7 As shown, the limiting structure is a limiting portion 18 in a concave-convex shape. When a pair of rods are brought together, the limiting portion 18 forms a locking position for the button 10 .

[0039] In some preferred embodiments, two adjacent clamping buckles 12 are connected by telescopic joints, so that the rod body of the intercepting rod 11 can longitudinally adjust the position of the clamping buckle 12 to cope with the oblique socket installation on the steel frame of the beam-column node, and further adapt to the actual construction site.

[0040] In some preferred embodiments, the rod body is provided with an installation slot adapted to the flexible telescopic steel wire mesh 13. Figure 5 In the state shown, the operator can insert the middle part of the flexible telescopic steel wire mesh 13 into the installation slot to control the flexible telescopic steel wire mesh 13 to reach a stacked and flat state.

[0041] In some specific extended embodiments, the fastener is a fastening bolt 8 .

[0042] The present invention also provides a construction method using the above beam-column node concrete slurry leakage prevention spigot plate mesh device 3, comprising:

[0043] Adjust the spacing of the intercepting rods 11 and the state of the flexible telescopic steel wire mesh 13 according to the spacing of the on-site beam reinforcement 2 skeleton, and fix them with fasteners, insert the socket mesh device 3 obliquely onto the beam reinforcement 2 skeleton, operate the tensioning and closing assembly to open each pair of rods and clamp the beam reinforcement 2, then adjust the tightness of the flexible telescopic steel wire mesh 13 and bind it with wire, pour concrete, and operate the tensioning and closing assembly to take out the socket mesh device 3 when the concrete is initially set.

[0044] In some specific extended embodiments, the following steps are included:

[0045] After the binding of S1 and beam reinforcement 2 is accepted, the column formwork is closed;

[0046] S2, loosen the fastening bolts 8, adjust the sliding buckle 7 according to the spacing of the on-site beam reinforcement 2 to make the interception rod 11 move horizontally on the handle 4, adjust the spacing of the interception rods 11 and the state of the flexible telescopic wire mesh 13, and then tighten the fastening bolts 8 to fix the position of the interception rod 11;

[0047] S3, press the button 10 upwards in sequence to compress the spring 14, open the drive rod 15 to open the interception rod 11, insert the open socket mesh device 3 into the beam reinforcement 2 skeleton, and then release the button 10, the spring 14 rebounds to return the button 10 to the initial position, the drive rod 15 pulls the interception rod 11 back to close the interception rod 11, the interception rod 11 clamps the beam reinforcement 2 through the clamping buckle 12 to complete the fixation of the device, adjust the state of the flexible telescopic wire mesh 13 and fix it with a wire tie;

[0048] S4, pouring concrete, when the concrete is initially set, pressing the buttons 10 upward in sequence to open the interception rod 11, opening the interception rod 11, and taking out the spigot plate mesh device 3.

[0049] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the specification of the present invention should be included in the protection scope of the present invention.

Claims

1. A socket-and-splice plate device for preventing concrete leakage at beam-column joints, characterized in that: It comprises a handle and a plurality of intercepting rods, wherein the intercepting rods are slidably mounted on the handles through sliding buckles at the tops, a flexible telescopic steel wire mesh is arranged between two adjacent intercepting rods, the intercepting rods are a pair of rod bodies with clamping buckles, a tensioning assembly is arranged between the tops of the rod bodies and the sliding buckles, the intercepting rods are slidably positioned on the handles through the sliding buckles, and the intercepting rods are tensioned and clamped on the steel frame through the tensioning assembly and the clamping buckles; The opening and closing assembly includes a cross bar and a button, wherein the cross bar is arranged between the sliding buckle and the intercepting rod, the top ends of a pair of rod bodies are rotatably installed at both ends of the cross bar, the button is connected to the cross bar through a spring and clamps the pair of rod bodies, and the pair of rod bodies are rotated and opened and closed by the button and the spring.

2. The beam-column joint concrete slurry leakage prevention socket-and-splice plate device according to claim 1 is characterized in that: A pair of driving rods are rotatably mounted between the tops of the pair of rod bodies, and the rotational connection points of the pair of driving rods are connected to the bottom ends of the springs.

3. The beam-column joint concrete slurry leakage prevention socket mesh device according to claim 2 is characterized in that: A limiting structure matched with the button is arranged on the top of a pair of the rod bodies.

4. The beam-column joint concrete slurry leakage prevention socket mesh device according to claim 1 is characterized in that: Two adjacent clamping buckles are connected via an expansion joint.

5. The beam-column joint concrete slurry leakage prevention socket-and-splice plate device according to claim 1 is characterized in that: The rod body is provided with a mounting slot adapted to the flexible telescopic steel wire mesh.

6. A construction method using the socket-and-splice plate device for preventing concrete slurry leakage at a beam-column node according to any one of claims 1 to 5, characterized in that: include: Adjust the spacing of the intercepting rods and the state of the flexible telescopic steel wire mesh according to the spacing of the on-site beam reinforcement skeleton, and fix them with fasteners. Insert the socket mesh device obliquely onto the beam reinforcement skeleton, operate the tensioning and closing components to open each pair of rods and clamp the beam reinforcement, then adjust the tightness of the flexible telescopic steel wire mesh and bind it with wire, pour concrete, and operate the tensioning and closing components to remove the socket mesh device when the concrete is initially set.

7. The construction method of the beam-column joint concrete slurry leakage prevention socket-type plate mesh device according to claim 6 is characterized in that: The steps include: S1. After the beam reinforcement binding is accepted, the column formwork is closed; S2. Loosen the fasteners, adjust the sliding buckle to make the interception rod move horizontally on the handle according to the spacing of the on-site beam reinforcement, adjust the spacing of the interception rods and the state of the flexible telescopic wire mesh, and then tighten the fasteners to fix the position of the interception rod; S3, operate the opening and closing components in sequence to open the interception rod, insert the open spigot plate mesh device into the beam reinforcement skeleton, then close the interception rod, clamp the beam reinforcement by clamping buckles, adjust the state of the flexible telescopic wire mesh and fix it with wire ties; S4. Pour concrete. When the concrete is initially set, operate the opening and closing assembly to open the intercepting rod and take out the spigot plate mesh device.

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