Construction joint structure capable of controlling steel bar elevation

Abstract

The utility model relates to the technical field of engineering construction, in particular to a construction joint structure capable of controlling steel bar elevation, which comprises a base, two vertical plates are symmetrically arranged in the center of the top of the base, and a construction joint area is formed between the two vertical plates; the seam plate is used for being connected between the two vertical plates in an inserted mode so as to seal the construction seam area; and the bracket is fixedly connected to one side of the vertical plate, and an elevation groove for placing a plate surface reinforcing steel bar is formed between the bracket and the vertical plate. The construction joint structure has the advantages that the thickness of the upper-layer plate face steel bar protection layer at the construction joint is controlled while the construction joint structure is completed, steel bar split heads or supports do not need to be additionally arranged, and therefore the floor concrete construction quality and construction efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engineering construction especially to a construction joint structure capable of controlling reinforcement elevation. BACKGROUND

[0002] In building engineering, construction joints (temperature joints) are an important structural configuration, especially in large-area floor concrete pouring, appropriate construction joints can effectively avoid cracks after concrete pouring.

[0003] In the actual construction process, the protective layer cushion block is usually arranged at the bottom of the reinforcement mesh, and only the thickness of the bottom plate reinforcement protective layer can be controlled. Due to the complex and dense formwork and reinforcement at the construction joint, it is not easy to add reinforcement stools or supports to support the upper plate reinforcement, so that the thickness of the upper plate reinforcement protective layer at the construction joint is difficult to control. If the thickness of the plate reinforcement protective layer is too large, pouring is completed or after a long period of pressure load, it may cause the floor to crack, and the construction site usually uses the method of pouring first and then cutting joints to leave construction joints, which may cause the reserved width, spacing and depth of the construction joint to not meet the design requirements due to manual cutting during the period, especially for fine aggregate concrete, due to the small amount of stone, the bonding strength and tensile strength between the concrete are insufficient, and surface expansion cracks often occur after the concrete pouring is completed, affecting the quality of floor concrete construction, resulting in rework or secondary operation, affecting construction efficiency and high cost, which needs to be solved urgently. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application provides a construction joint structure capable of controlling reinforcement elevation.

[0005] The above invention purpose of the present application is realized by the following technical scheme:

[0006] A construction joint structure capable of controlling reinforcement elevation, comprising:

[0007] A base is provided with two vertical plates symmetrically arranged on the top, and a construction joint area is formed between the two vertical plates;

[0008] A joint plate is used for inserting between the two vertical plates to close the construction joint area;

[0009] A support is fixedly connected to one side of the vertical plate and forms an elevation groove for placing the plate reinforcement between the vertical plate and the support.

[0010] By adopting the technical scheme, when the construction joint is constructed, the base is placed on the specified position of the concrete slab surface to be fixed, so that the construction joint area is determined between the two vertical plates, the joint plate is inserted into the construction joint area between the two vertical plates, the construction joint area can be closed, and after pouring is completed, the joint plate is removed, the construction joint can be accurately formed according to the shape and size of the joint plate, the possibility of rework due to size inconsistency is reduced, and cutting is not needed, time and labor are saved, construction cost is reduced, the joint plate can be recycled repeatedly, and by selecting the joint plate with a specified height according to the elevation of the required pouring concrete surface, the elevation of the concrete pouring can be controlled, and then by arranging the support, the elevation groove for placing the slab steel bars can be formed in cooperation with the vertical plate, the slab steel bars near the construction joint can be supported and the thickness of the upper slab steel bar protection layer at the construction joint can be controlled while the construction joint structure is completed, and no additional steel stool or support is needed, so that the quality and efficiency of the floor concrete construction are improved.

[0011] In a preferred example, the vertical plate is provided with a plurality of protrusions.

[0012] By adopting the technical scheme, the plurality of protrusions can increase the contact area between the vertical plate and the concrete, and further improve the pouring quality of the concrete.

[0013] In a preferred example, the protrusions are circular.

[0014] By adopting the technical scheme, the smooth shape of the circular protrusions can reduce stress concentration to reduce the occurrence of cracks around the protrusions.

[0015] In a preferred example, the base is fixedly connected to the concrete slab surface by nailing.

[0016] By adopting the technical scheme, nailing can ensure accurate and stable connection of the base position, improve construction efficiency and accuracy.

[0017] In a preferred example, the base, the vertical plate, the joint plate and the support are made of environmentally friendly plastic materials.

[0018] By adopting the technical scheme, the base, the vertical plate, the joint plate and the support made of environmentally friendly plastic materials can realize accurate control of the construction joint and ensure the thickness of the slab steel bar protection layer, and have the advantages of environmental protection, lightness, corrosion resistance, and meet the environmental protection requirements of modern construction engineering.

[0019] In summary, the present application has at least one of the following beneficial technical effects:

[0020] 1. It can accurately form construction joints according to the shape and size of the joint board, reducing the possibility of rework due to size discrepancies and eliminating the need for cutting joints, saving time and effort, reducing construction costs. At the same time, the joint board can be repeatedly recycled. Furthermore, by selecting a joint board of a specified height according to the required elevation of the concrete surface to be poured, the elevation of the concrete pouring can also be controlled. Then, by setting up supports, it can be combined with vertical plates to form an elevation groove for placing the slab reinforcement. Placing the slab reinforcement on the elevation groove can provide support for the slab reinforcement near the construction joint and achieve control over the thickness of the protective layer of the upper slab reinforcement at the construction joint while completing the construction joint structure. There is no need to add additional reinforcement stirrups or supports, thereby improving the construction quality and efficiency of the floor concrete.

[0021] 2. By setting several protrusions, the contact area between the vertical plate and the concrete can be increased, thereby further improving the quality of concrete pouring.

[0022] 3. The base, vertical plate, joint plate and support are made of environmentally friendly plastic materials, which can achieve precise control of construction joints and ensure the thickness of the protective layer of steel bars on the slab surface. At the same time, it is environmentally friendly, lightweight and corrosion resistant, and meets the environmental protection requirements of modern construction projects. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the on-site construction plan when the construction joint structure in this application is adopted;

[0024] Figure 2 This is a structural schematic diagram of the construction joint structure in this application;

[0025] Figure 3 This is another structural schematic diagram of the construction joint structure in this application;

[0026] Figure 4 This is another on-site construction plan diagram when the construction joint structure in this application is adopted.

[0027] Attached reference numerals: 1. Construction joint structure; 11. Base; 12. Joint plate; 13. Support; 14. Vertical plate; 15. Elevation groove; 16. Protrusion; 2. Construction joint area; 3. Zone; 4. Reinforcing steel; 5. Geotextile. Detailed Implementation

[0028] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application, including various details to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0029] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0030] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.

[0031] The following is a reference appendix. Figure 1 To be continued Figure 3 This application describes a construction joint structure with controllable rebar elevation.

[0032] Reference Figures 1 to 3 The construction joint structure 1, which allows control over the rebar elevation, includes a base 11, a joint plate 12, and a support 13. Two vertical plates 14 are symmetrically positioned at the top center of the base 11, forming a construction joint area 2 between them. The joint plate 12 is inserted between the two vertical plates 14 to close the construction joint area 2. The support 13 is fixedly connected to one side of the vertical plate 14 and forms an elevation groove 15 between it and the vertical plate 14 for placing the rebar on the slab surface. During construction joint construction, the base 11 is placed and fixed at a designated position on the concrete slab surface according to the construction joint location design, thus defining the construction joint area 2 between the two vertical plates 14. By inserting the joint plate 12 into the construction joint area 2 between the two vertical plates 14, the construction joint area 2 can be closed, and the joint plate 12 can be removed after pouring. This allows for precise formation of construction joints based on the shape and dimensions of the joint plate 12, reducing the possibility of rework due to size discrepancies and eliminating the need for cutting joints, saving time and effort, and reducing construction costs. Furthermore, the joint plate 12 can be repeatedly recycled. By selecting a joint plate 12 of a specified height according to the required elevation of the concrete surface, the elevation of the concrete pouring can be controlled. Then, by setting up supports 13, a height groove 15 for placing the slab reinforcement can be formed in conjunction with the vertical plate 14. Placing the slab reinforcement in the height groove 15 provides support for the slab reinforcement near the construction joint and allows for control of the protective layer thickness of the upper slab reinforcement at the construction joint while completing the construction joint structure 1, eliminating the need for additional reinforcement supports or scaffolds, thereby improving the quality and efficiency of the concrete floor construction.

[0033] Furthermore, several protrusions 16 are provided on the outer side of the vertical plate 14. By providing several protrusions 16, the contact area between the vertical plate 14 and the concrete can be increased, thereby further improving the quality of concrete pouring.

[0034] Preferably, the protrusion 16 is circular in shape. The smooth shape of the circular protrusion 16 can reduce stress concentration and reduce the occurrence of cracks in the concrete around the protrusion 16.

[0035] In addition, the base 11 is fixedly connected to the concrete slab by means of nail gun fixing. Fixing with nail gun can ensure that the base 11 is accurately positioned and stably connected, thereby improving construction efficiency and precision.

[0036] Preferably, the base 11, vertical plate 14, seam plate 12 and support 13 are all made of environmentally friendly plastic materials.

[0037] It should be noted that this utility model can control the elevation of the concrete slab surface and the elevation of the reinforcing bars during concrete pouring. After the concrete pouring is completed, the joint plate 12 can be removed and recycled. It is lightweight, convenient, and made of environmentally friendly materials. It is suitable for construction conditions of large-area floor concrete and construction conditions requiring high-precision construction joints.

[0038] Furthermore, the specific steps for using this utility model are as follows:

[0039] 1. Clean the base layer and prepare the construction joint structure 1 with controllable rebar elevation;

[0040] 2. Roughen the surface, especially at the construction joints between sections;

[0041] 3. Set up construction joint structure 1 at the construction site, fix it firmly with nails, and place joint board 12 between the two vertical boards 14 to separate each section;

[0042] 4. Tie the reinforcing bars, place reinforcing bar spacers at the bottom of the reinforcing bars, and spot weld them to prevent the reinforcing bars from shifting and control the height of the concrete cover of the bottom reinforcing bars of the slab.

[0043] 5. Concrete pouring and vibration are carried out, and grouting is performed using a grouting machine for leveling and grouting.

[0044] 6. After the concrete is poured, perform secondary troweling and finishing in a timely manner. After the concrete has set, remove the joint board 12, immediately spray water for curing, and lay geotextile for moisture retention. The curing time shall not be less than 14 days.

[0045] After the curing is completed, the surface layer construction and joint filling will be carried out.

[0046] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A construction joint structure with controllable rebar elevation, characterized in that, include: A base (11) has two vertical plates (14) symmetrically arranged at the top center of the base (11), and a construction joint area (2) is formed between the two vertical plates (14); A seam board (12) is used to be inserted between two vertical boards (14) to close the construction joint area (2); Support (13), which is fixedly connected to one side of the vertical plate (14) and forms an elevation groove (15) between the support (13) and the vertical plate (14) for placing the plate surface reinforcement.

2. The construction joint structure with controllable rebar elevation as described in claim 1, characterized in that, Several protrusions (16) are provided on the outer side of the vertical plate (14).

3. A construction joint structure with controllable rebar elevation as described in claim 2, characterized in that, The protrusion (16) is circular in shape.

4. A construction joint structure with controllable rebar elevation as described in claim 1, characterized in that, The base (11) is fixedly connected to the concrete slab surface by means of nailing.

5. A construction joint structure with controllable rebar elevation as described in claim 1, characterized in that, The base (11), the vertical plate (14), the seam plate (12), and the support (13) are all made of environmentally friendly plastic materials.

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