Fabricated floor slab pouring mold with non-dismantling formwork

Abstract

The utility model provides an assembly type floor slab pouring mould with a non-dismantling formwork, which comprises a formwork layer on the lower side and a thin-wall steel space structure on the upper side, concrete pouring cavities are arranged between the formwork layer and the thin-wall steel space structure and inside the thin-wall steel space structure, and each concrete pouring cavity comprises a floor slab plane and a floor slab end face. The length of the floor slab plane is larger than that of the floor slab end face, inward thin-wall steel bent plates are evenly arranged on the thin-wall steel space structure on one side of the floor slab plane at intervals, and the bent ends of the thin-wall steel bent plates are welded and fixed to the opposite thin-wall steel space structure. The template layer is fixedly connected with the thin-wall steel space structure through a through screw rod, and the template layer is one of a calcium silicate plate, a cement fiber pressure plate, a lightweight concrete fiber plate or other inorganic non-metal material plates. According to the utility model, a bracket or a support is not required to be arranged outside the template for improving the system rigidity, and the template is not required to be disassembled.

Description

Technical fields:

[0001] This utility model relates to the technical field of concrete pouring molds in the construction industry, specifically to a prefabricated floor slab pouring mold with a self-contained, non-removable template. Background technology:

[0002] Currently, formwork is required during the construction of concrete floor slabs, and longitudinal reinforcement bars are laid inside. After pouring, the tensile force of the concrete floor slab is mainly borne by the longitudinal reinforcement bars, while the shear force is mainly borne by the concrete.

[0003] The above-mentioned concrete slab casting molds have the following disadvantages:

[0004] (1) It is necessary to install brackets or supports outside the template to improve the rigidity of the system, which results in huge labor and time costs for setting up the support system during construction.

[0005] (2) The formwork needs to be installed on site, and the formwork needs to be removed after the concrete floor slab is poured. This not only causes a huge amount of work on site, but also generates a lot of construction waste on the construction site, resulting in a waste of resources.

[0006] (3) When pouring, longitudinal reinforcement needs to be laid on site, which is time-consuming and labor-intensive. Summary of the Invention:

[0007] To address the aforementioned technical problems, this invention provides a concrete slab casting mold that eliminates the need for external supports or brackets to enhance system rigidity and eliminates the need for mold removal, thereby reducing labor, construction time, and resource waste. The mold features a self-contained, formwork-free prefabricated slab casting mold, characterized by comprising a lower formwork layer and a thin-walled steel space structure positioned above the formwork layer. The formwork layer and the thin-walled steel space structure are assembled together. A concrete casting cavity exists between the formwork layer and the thin-walled steel space structure, and within the thin-walled steel space structure. After concrete is poured into the concrete casting cavity, a prefabricated slab is formed.

[0008] The concrete pouring cavity includes a floor slab plane and a floor slab end face. The length of the floor slab plane is greater than the length of the floor slab end face. On the thin-walled steel space structure on one side of the floor slab plane, inwardly bent thin-walled steel plates are also evenly spaced. The bent ends of the thin-walled steel plates are welded and fixed to the thin-walled steel space structure on the opposite side to enhance the stability and deformation resistance of the thin-walled steel space structure.

[0009] The template layer and the thin-walled steel space structure are fixedly connected by a through bolt. The through bolt serves as a connector between the template layer and the thin-walled steel space structure, and at the same time, it is used to limit the lateral deformation of the template layer caused by the expansion pressure of concrete.

[0010] The template layer is made of one of the following materials: calcium silicate board, cement fiber pressure board, lightweight concrete fiberboard, or other inorganic non-metallic material boards.

[0011] The holes left in the thin-walled steel space structure after the thin-walled steel bending plate is bent inward are used as concrete flow holes. At the same time, the concrete flow holes are also evenly distributed on the thin-walled steel space structure that makes up the end face of the floor slab, which facilitates the flow of poured concrete.

[0012] The shape of the concrete flow hole formed after the thin-walled steel bending plate is bent inward is a circle, a rectangle, or a combination of one or more other geometric shapes.

[0013] The thin-walled steel space structure is also provided with vent holes evenly distributed on it.

[0014] The thin-walled steel space structure is also provided with steel plate corrugations on the side near the template layer.

[0015] Based on the structural stress calculation requirements, the following reinforcement measures can be taken: increase the thickness of the thin-walled steel plate; add longitudinal reinforcement bars at the bottom and top of the thin-walled steel plate.

[0016] This utility model's floor slab system is a formwork-free, support-free, and plaster-free system, and it is quick to construct, cost-effective, and environmentally friendly. Its features are as follows:

[0017] 1. In this utility model, the tensile force and part of the shear force are borne by the perforated thin-walled steel plate, which is equivalent to the perforated thin-walled steel replacing the reinforcing steel.

[0018] 2. In this utility model, the welded thin-walled steel plates form a complete spatial structure;

[0019] 3. In this utility model, the thin-walled steel plate is provided with holes to facilitate concrete flow and ventilation;

[0020] 4. The template material of this utility model is calcium silicate board, cement fiber pressure board, lightweight concrete fiber board or other inorganic material board.

[0021] 5. This utility model is modularly processed and assembled in the factory according to the detailed drawings, and then connected and fixed on site, reducing the amount of on-site installation work;

[0022] 6. This utility model eliminates the need for a traditional formwork support system (supports and braces), reducing the labor and construction time required for the support system.

[0023] 7. This utility model belongs to the category of non-removable formwork, which greatly reduces the workload of formwork removal and on-site waste disposal, and is a green and environmentally friendly building material;

[0024] 8. The thin-walled steel space structure of this utility model has high rigidity and high surface flatness, eliminating the need for plastering and leveling, thus reducing on-site workload.

[0025] 9. This utility model is modularly processed and assembled in the factory, and belongs to a type of prefabricated formwork building material. Attached image description:

[0026] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0027] Figure 2 This is a schematic diagram showing the unfolded plan of the thin-walled steel space structure floor slab of this utility model;

[0028] Figure 3 This is a spatial schematic diagram of the thin-walled steel space structure of this utility model;

[0029] Figure 4 This is a schematic diagram showing the unfolded end face of the thin-walled steel space structure floor slab of this utility model;

[0030] Attached image labels:

[0031] 1. Template layer; 2. Thin-walled steel space structure; 3. Concrete pouring cavity; 4. Through bolt.

[0032] 5. Concrete flow hole; 6. Vent hole

[0033] 2-1. Thin-walled steel bent plate; 3-1. Floor slab plane; 3-2. Floor slab end face. Detailed implementation method:

[0034] like Figures 1 to 4 As shown, this utility model provides a prefabricated floor slab casting mold with a self-contained, non-removable template. Its features include a lower template layer 1 and a thin-walled steel space structure 2 disposed on the upper side of the template layer 1. The template layer 1 and the thin-walled steel space structure 2 are assembled together. The space between the template layer 1 and the thin-walled steel space structure 2 and the interior of the thin-walled steel space structure 2 are concrete casting cavities 3. After cement is poured into the concrete casting cavity 3, a prefabricated floor slab is formed.

[0035] The concrete pouring cavity 3 includes a floor slab plane 3-1 and a floor slab end face 3-2. The length of the floor slab plane 3-1 is greater than the length of the floor slab end face 3-2. On the thin-walled steel space structure 2 on one side of the floor slab plane 3-1, inwardly bent thin-walled steel plates 2-1 are also evenly spaced. The arc-shaped dotted line in the attached figure is the inward bending trajectory of the thin-walled steel plate 2-1. The bent end of the thin-walled steel plate 2-1 is fixed to the thin-walled steel space structure 2 on the opposite side by welding to enhance the stability and deformation resistance of the thin-walled steel space structure 2.

[0036] The template layer 1 and the thin-walled steel space structure 2 are fixedly connected by a through screw 4. The through screw 4 serves as a connector between the template layer 1 and the thin-walled steel space structure 2, and is also used to limit the lateral deformation of the template layer 1 caused by the expansion pressure of concrete.

[0037] The template layer 1 is made of one of the following materials: calcium silicate board, cement fiber pressure board, lightweight concrete fiberboard, or other inorganic non-metallic material boards.

[0038] After the thin-walled steel bending plate 2-1 is bent inward, the holes left on the thin-walled steel space structure 2 are used as concrete flow holes 5. At the same time, the concrete flow holes 5 are also evenly distributed on the thin-walled steel space structure 2 that makes up the end face 3-2 of the floor slab. The concrete flow holes 5 facilitate the flow of poured concrete.

[0039] The shape of the concrete flow hole 5 formed by the inward bending of the thin-walled steel bending plate 2-1 is a circle, a rectangle, or a combination of one or more other geometric shapes.

[0040] The thin-walled steel space structure 2 is also provided with vent holes 6 evenly distributed on it.

[0041] The thin-walled steel space structure 2 is also provided with steel plate corrugations on the side near the template layer 1.

[0042] The main construction process of this utility model is as follows:

[0043] 1. Modular fabrication and pipeline pre-embedding and assembly are carried out in the factory according to the detailed drawings;

[0044] 2. The equipment is transported from the factory to the construction site for positioning and connection;

[0045] 3. Install additional reinforcing bars on site and seal the joints with adhesive strips;

[0046] 4. Inspect the sealing of pipelines and joints;

[0047] 5. Concrete pouring;

[0048] 6. After the concrete has hardened, grind down any uneven areas.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A prefabricated floor slab casting mold with built-in, non-removable formwork, characterized in that, It includes a lower template layer (1) and a thin-walled steel space structure (2) set on the upper side of the template layer (1). The template layer (1) and the thin-walled steel space structure (2) are assembled together. The space between the template layer (1) and the thin-walled steel space structure (2) and inside the thin-walled steel space structure (2) is a concrete pouring cavity (3). After concrete is poured into the concrete pouring cavity (3), a prefabricated floor slab is formed. The concrete pouring cavity (3) includes a floor slab plane (3-1) and a floor slab end face (3-2). The length of the floor slab plane (3-1) is greater than the length of the floor slab end face (3-2). On the thin-walled steel space structure (2) on one side of the floor slab plane (3-1), inwardly bent thin-walled steel plates (2-1) are evenly spaced. The bent ends of the thin-walled steel plates (2-1) are welded and fixed to the thin-walled steel space structure (2) on the opposite side to enhance the stability and deformation resistance of the thin-walled steel space structure (2). The template layer (1) and the thin-walled steel space structure (2) are fixedly connected by a through screw (4). The through screw (4) serves as a connector between the template layer (1) and the thin-walled steel space structure (2) and is also used to limit the lateral deformation of the template layer (1) caused by the expansion pressure of concrete. The template layer (1) is made of one of the following materials: calcium silicate board, cement fiber pressure board, lightweight concrete fiberboard, or other inorganic non-metallic material boards.

2. The prefabricated floor slab casting mold with self-contained, non-removable formwork as described in claim 1, characterized in that, After the thin-walled steel bent plate (2-1) is bent inward, the holes left on the thin-walled steel space structure (2) are used as concrete flow holes (5). At the same time, the concrete flow holes (5) are also evenly distributed on the thin-walled steel space structure (2) that makes up the end face (3-2) of the floor slab. The concrete flow holes (5) facilitate the flow of the poured concrete.

3. The prefabricated floor slab casting mold with self-contained, non-removable formwork as described in claim 2, is characterized in that... The concrete flow hole (5) formed after the thin-walled steel bending plate (2-1) is bent inward is in the shape of a circle, a rectangle or a combination of other geometric shapes.

4. The prefabricated floor slab casting mold with self-contained, non-removable formwork as described in claim 1, characterized in that, The thin-walled steel space structure (2) is also provided with vent holes (6) evenly distributed.

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