A formwork structure suitable for narrow vibration isolation space construction

Abstract

The utility model is suitable for construction technical field provides a kind of formwork structure suitable for narrow vibration isolation space construction, including upper structure, lower structure, bottom form, side form, air bag and sand;The narrow space is formed between the upper structure and lower structure, the periphery of the narrow space is blocked by the side form, the side form is supported by reinforcing structure on the side away from the sand, several air bags spaced apart are laid in the narrow space, the sand is rammed in the narrow space, the air bag is buried in the sand, the bottom form is laid on the sand surface, and the narrow space is covered, the bottom form supports the upper structure.The utility model can solve the problem of narrow cavity formwork well, and can achieve the requirement of complete form removal, save material waste and reduce cost.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a formwork structure suitable for construction in narrow vibration isolation spaces. Background Technology

[0002] In recent years, formwork, as an indispensable reusable material in construction engineering, has significantly impacted project quality, cost, and schedule control. Traditional formwork methods, such as wooden formwork, suffer from high material consumption and low strength, while steel formwork is heavy, lacks flexibility, and is difficult to construct, severely limiting its application. However, with the deepening of sustainable development concepts, aluminum formwork, as a new generation of formwork system, has gained industry recognition. However, during construction, it is unavoidable to encounter formwork support structures in confined spaces. When the distance between the lower and upper structures is narrow, and the structural system requires formwork dismantling, the limited space for personnel operation makes formwork erection and dismantling even more difficult. For confined vibration-isolation cavities where a complete disconnect between the upper and lower structures is required, traditional formwork systems cannot meet the requirements. Therefore, it is essential to develop a support structure that can be dismantled in confined spaces. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a formwork structure suitable for construction in narrow vibration isolation spaces, aiming to solve the problem of the difficulty in setting up and dismantling formwork in narrow space construction in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A formwork structure suitable for construction in narrow vibration isolation spaces includes an upper structure, a lower structure, a bottom formwork, side formwork, airbags, and sand. A narrow space is formed between the upper and lower structures. The narrow space is sealed off by the side formwork. The side of the side formwork facing away from the sand is supported by a reinforcing structure. Several airbags are arranged at intervals within the narrow space. The sand is filled and compacted within the narrow space. The airbags are buried within the sand. The bottom formwork is laid on the surface of the sand and covers the narrow space. The bottom formwork supports the upper structure.

[0005] As a preferred embodiment of this utility model, a layer of tarpaulin is laid on the upper surface of the bottom template.

[0006] In a preferred embodiment of this utility model, the airbag extends toward the side template and is perpendicular to the side template.

[0007] As a preferred embodiment of this utility model, the reinforcing structure includes a first timber and a second timber. One side of the first timber abuts against the side template, one end of the second timber abuts against one side of the lower structure, and the other end of the second timber abuts against the other side of the first timber.

[0008] In a preferred embodiment of this utility model, the edge of the bottom template protrudes beyond the edge of the side template, and the edge of the bottom template is connected to the first wooden block by self-tapping screws.

[0009] In a preferred embodiment of this utility model, a fastener is provided on the lower structure, and the second timber is connected to the fastener by self-tapping screws.

[0010] In a preferred embodiment of this invention, the airbag is an inflatable rubber rod.

[0011] Compared with the prior art, the beneficial effects of this utility model embodiment are as follows: This invention uses a reinforced structure to support the side formwork, which seals the narrow space between the upper and lower structures. Airbags are placed within this narrow space, which is then filled with compacted sand, burying the airbags within the sand. The bottom formwork is then laid on top of the sand, sealing the narrow space. This provides support for the subsequent pouring of the upper structure. After the upper structure is poured, the reinforced structure can be dismantled, and the side formwork removed. Due to the fluidity of the sand, it flows out of the narrow space, exposing the airbags, which can then be easily punctured. This allows the sand to dissipate stress, providing sufficient space for the bottom formwork to be removed. This effectively solves the problem of supporting formwork in narrow cavities and allows for complete demolding, saving material waste and reducing costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the cross-sectional structure of a formwork structure suitable for construction in narrow vibration isolation spaces, provided by an embodiment of this utility model.

[0013] The labels for the attached figures are as follows: 1. Upper structure; 2. Lower structure; 3. Bottom template; 4. Side template; 5. Airbag; 6. Sand; 7. Narrow space; 8. Oilcloth; 9. First timber; 10. Second timber; 11. Self-tapping screws; 12. Fasteners. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] like Figure 1 As shown, this utility model embodiment provides a formwork structure suitable for construction in narrow vibration isolation spaces, including an upper structure 1, a lower structure 2, a bottom formwork 3, side formwork 4, airbags 5, and sand 6; a narrow space 7 is formed between the upper structure 1 and the lower structure 2, and the narrow space 7 is sealed around its perimeter by the side formwork 4. The side of the side formwork 4 facing away from the sand 6 is supported by a reinforcing structure. Several airbags 5 are arranged at intervals in the narrow space 7, and the sand 6 is filled and compacted in the narrow space 7. The airbags 5 are buried in the sand 6. The bottom formwork 3 is laid on the surface of the sand 6 and covers the narrow space 7. A layer of tarpaulin 8 is laid on the upper surface of the bottom formwork 3. The bottom formwork 3 supports the upper structure 1. Both the upper structure 1 and the lower structure 2 are formed by concrete pouring.

[0017] In a large concrete structural system within a narrow space 7, this invention utilizes the compressive strength, flowability, and plasticity of sand 6 for formwork erection. First, box-shaped side formwork 4 is arranged around the perimeter of the narrow space 7 structure. Then, sand 6 is evenly layered and laid on the base surface, with airbags 5 placed at certain intervals. The sand 6 is consolidated by segmented water spraying and compacted to the structural bottom elevation. Finally, the bottom formwork 3 and tarpaulin 8 are laid. The tarpaulin 8 isolates the concrete from the sand 6, preventing cement slurry from seeping out and consolidating the sand 6. After the upper structure 1, formed by concrete pouring, reaches its design strength, only the side formwork 4 needs to be dismantled. A high-pressure water gun is then used to flush the sand 6 and puncture the airbags 5, allowing for the removal of the bottom formwork 3. Compared to traditional formwork methods, this technology effectively solves the problem of formwork in narrow cavities and allows for complete formwork removal, greatly improving construction efficiency and progress. It also enables the reuse of formwork materials, saving labor and material waste, thus achieving cost reduction and efficiency improvement.

[0018] In this embodiment, the airbag 5 extends towards and is perpendicular to the side template 4, so that it can be easily burst after the side template is removed. Preferably, the airbag 5 is an inflatable rubber rod.

[0019] In this embodiment, the reinforcing structure includes a first timber 9 and a second timber 10. One side of the first timber 9 abuts against the side template 4, and one end of the second timber 10 abuts against one side of the lower structure 2. The other end of the second timber 10 abuts against the other side of the first timber 9. Specifically, the edge of the bottom template 3 protrudes beyond the edge of the side template 4, and the edge of the bottom template 3 is connected to the first timber 9 by self-tapping screws 11. A fixing member 12 is provided on the lower structure 2, and the second timber 10 is connected to the fixing member 12 by self-tapping screws 11. The reinforcing structure effectively supports the side template 4, supports the plasticity of the sand 6, and prevents uneven lateral displacement during subsequent concrete pouring.

[0020] The construction operation and key technical points of the formwork structure provided by this utility model are as follows: (1) Base treatment: Before construction, use cleaning tools to clean the surface of the base layer of the lower structure 2, removing oil stains, dust and other construction waste. Repair any defects in the concrete surface. The base layer should be flat, free of visible construction waste, and watered. The next process can only be carried out after the acceptance is qualified.

[0021] (2) Positioning and marking lines: The construction personnel shall use an ink line box to mark the outer edge line of the upper structure 1 to be constructed, the layout line of the airbag 5, and the layout line of the fastener 12. The lines shall be marked accurately according to the dimensions in the drawings. The ink lines shall be easy to keep from fading. The lines shall be clear after they are marked. The force applied when lifting the lines shall be even. The two ends of the lines and the lifting point shall be on the same line.

[0022] (3) Installation of side formwork 4: Arrange timber and side formwork 4 along the edge of the upper structure 1. Arrange the formwork along its entire length, and reinforce it with the first timber 9 along its entire length on the back, ensuring that they are in a straight line. Then, arrange the reinforcement members along the longitudinal direction on the back of the first two, and then arrange the second timber 10 cut to the appropriate size perpendicular to the longitudinal direction of the sand box side formwork 4, and fix it to the reinforcement members with self-tapping screws 11 to prevent uneven stress and lateral displacement during subsequent concrete pouring.

[0023] (4) Sand box support: Sand 6 is laid in layers into the sand box formed by the side template 4. Wooden sand shovels are used to spread it evenly so that the compressive strength meets the requirements. During the process of laying and compacting the sand 6, airbags 5 are arranged at intervals of 2m perpendicular to the side template direction.

[0024] (5) Laying of bottom formwork 3: The top of the sand box is laid with bottom formwork 3, and a layer of tarpaulin 8 is laid on the bottom formwork 3. An additional layer is applied at the joint to prevent cement slurry from overflowing down through the formwork joint and combining with sand 6 during concrete pouring, which would affect the quality of concrete forming and subsequent demolding construction.

[0025] At this point, the formwork structure construction is complete. After acceptance, the rebar binding, beam side formwork assembly, and concrete pouring can begin. Only after the design strength requirements are met can the formwork removal construction begin.

[0026] In summary, this utility model strengthens the side formwork 4 by reinforcing the structure, thus sealing the narrow space 7 between the upper structure 1 and the lower structure 2. Airbags 5 are placed within the narrow space 7, and compacted sand 6 is filled and filled into it, burying the airbags 5 within the sand 6. The bottom formwork 3 is then laid on top of the sand 6, sealing the narrow space 7. This provides formwork support for the subsequent pouring of the upper structure 1. After the upper structure 1 is poured, the side formwork 4 can be removed by dismantling the reinforcing structure. Due to the fluidity of the sand 6, it flows out of the narrow space 7, exposing the airbags 5, which can then be easily punctured. This allows the sand 6 to have sufficient space to release the pressure, enabling the bottom formwork 3 to be removed. This effectively solves the problem of formwork support in narrow cavities, achieves complete demolding, saves on material waste, and reduces costs.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A formwork structure suitable for construction in narrow vibration isolation spaces, characterized in that, The system includes an upper structure, a lower structure, a bottom template, side templates, airbags, and sand. A narrow space is formed between the upper and lower structures. The narrow space is sealed off by the side templates. The side templates facing away from the sand are supported by a reinforcing structure. Several airbags are arranged at intervals within the narrow space. The sand is filled and compacted within the narrow space. The airbags are buried within the sand. The bottom template is laid on the surface of the sand and covers the narrow space. The bottom template supports the upper structure.

2. The formwork structure suitable for construction in narrow vibration isolation spaces according to claim 1, characterized in that, A layer of tarpaulin is laid on the upper surface of the bottom mold.

3. The formwork structure suitable for construction in narrow vibration isolation spaces according to claim 1, characterized in that, The airbag extends toward the side template and is perpendicular to the side template.

4. The formwork structure suitable for construction in narrow vibration isolation spaces according to claim 1, characterized in that, The reinforcement structure includes a first timber and a second timber. One side of the first timber abuts against the side template, one end of the second timber abuts against one side of the lower structure, and the other end of the second timber abuts against the other side of the first timber.

5. The formwork structure suitable for construction in narrow vibration isolation spaces according to claim 4, characterized in that, The edge of the bottom template protrudes beyond the edge of the side template, and the edge of the bottom template is connected to the first timber by self-tapping screws.

6. The formwork structure suitable for construction in narrow vibration isolation spaces according to claim 4, characterized in that, The lower structure is provided with a fastener, and the second timber is connected to the fastener by self-tapping screws.

7. The formwork structure suitable for construction in narrow vibration isolation spaces according to claim 1, characterized in that, The airbag is an inflatable rubber rod.

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