Pouring mold provided with non-dismantling formwork and formed by combining thin-wall steel and steel bars
By using a casting mold that combines thin-walled steel and reinforcing bars with a self-contained, non-removable formwork, the problems of long construction period and resource waste in existing technologies have been solved, achieving an efficient and environmentally friendly concrete casting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BOP NORTH CHINA (TIANJIN) CONSTR TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-12
Smart Images
Figure CN224228251U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the technical field of concrete pouring molds in the construction industry, specifically to a pouring mold that has a self-contained, non-removable template and is made of thin-walled steel and reinforcing steel. Background technology:
[0002] Currently, all concrete pouring formwork construction requires the installation of formwork, with longitudinal reinforcement and stirrups laid inside. After pouring, the tensile force in the concrete structural beams and columns is mainly borne by the longitudinal reinforcement, while the shear force is mainly borne by the stirrups and concrete.
[0003] The above-mentioned concrete structural beam and column members 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) All of the above templates need to be installed on site, and the templates need to be removed after the concrete 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 bars and stirrups need 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 pouring mold that eliminates the need for external supports or brackets to enhance system rigidity, eliminates the need for on-site laying of longitudinal reinforcement and stirrups, and eliminates the need for formwork removal. This reduces labor and construction time, and minimizes resource waste. The invention provides a pouring mold with a self-contained, non-removable formwork, composed of thin-walled steel and reinforcing bars. It includes an outer formwork layer and a thin-walled steel layer disposed inside the formwork layer. After assembly, the formwork layer and the thin-walled steel layer form a concrete pouring cavity. The formwork layer serves as the mold for concrete pouring. Its key features are:
[0008] The thin-walled steel layer is also provided with inwardly bent thin-walled steel plates evenly spaced apart, and stirrups are welded between two opposite thin-walled steel bent plates. The thin-walled steel bent plates and the stirrups, which are fixedly welded together, are used to enhance the stability and deformation resistance of the thin-walled steel layer.
[0009] The thin-walled steel layer is also evenly provided with concrete flow holes to facilitate the flow of poured concrete and enable the concrete to fill all the voids inside the template layer.
[0010] The template layer and the thin-walled steel layer are fixedly connected by screws.
[0011] 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.
[0012] At the inflection points of the thin-walled steel layer, additional vertical reinforcing bars are provided according to structural calculation requirements to enhance the overall strength of the poured concrete column.
[0013] The screw is either a self-tapping screw or a female screw.
[0014] 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.
[0015] Vent holes are also evenly distributed on the thin-walled steel layer.
[0016] In actual construction, this utility model can be divided into concrete column casting molds and concrete beam casting molds. The template layer is provided on all four sides of the concrete column casting mold, while the template layer is not provided on the upper surface of the concrete beam casting mold.
[0017] The features of this utility model are as follows:
[0018] 1. In this utility model, the bending 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 longitudinal reinforcement and part of the stirrups;
[0019] 2. In this utility model, thin-walled steel plates and reinforcing bars are welded together inside beams and columns to form a complete spatial structure;
[0020] 3. In this utility model, the thin-walled steel plate is provided with holes to facilitate concrete flow and ventilation;
[0021] 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.
[0022] 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;
[0023] 6. This utility model eliminates the need for a traditional formwork support system (supports and braces), and eliminates the need for on-site laying of longitudinal reinforcement and stirrups, thus reducing the labor and construction period required for the construction support system;
[0024] 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;
[0025] 8. 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 concrete column casting mold of this utility model;
[0027] Figure 2 This is a schematic diagram showing the unfolded thin-walled steel layer of the concrete column casting mold of this utility model.
[0028] Figure 3 A spatial schematic diagram of the thin-walled steel layer of the concrete column casting mold of this utility model;
[0029] Figure 4 This is a cross-sectional schematic diagram of the concrete beam casting mold of this utility model;
[0030] Figure 5 This is a schematic diagram showing the unfolded thin-walled steel layer of the concrete beam casting mold of this utility model;
[0031] Figure 6 A spatial schematic diagram of the thin-walled steel layer in the concrete beam casting mold of this utility model;
[0032] Figure 7 This is a schematic diagram of the stirrup of this utility model.
[0033] Attached image labels:
[0034] 1. Formwork layer; 2. Thin-walled steel layer; 3. Concrete pouring cavity; 4. Stirrups.
[0035] 5. Concrete flow hole; 6. Screw; 7. Additional reinforcing bar; 8. Vent hole
[0036] 2-1. Thin-walled steel bending plate Detailed implementation method:
[0037] like Figures 1 to 7 As shown, this utility model provides a casting mold with a self-contained, non-removable template, composed of thin-walled steel and reinforcing bars. It includes an outer template layer 1 and a thin-walled steel layer 2 disposed inside the template layer 1. After the template layer 1 and the thin-walled steel layer 2 are assembled, a concrete casting cavity 3 is formed inside. The template layer 1 is used as a mold for concrete casting. Its characteristic is:
[0038] The thin-walled steel layer 2 is also evenly spaced with inwardly facing thin-walled steel bent plates 2-1. Figure 1 and appendix Figure 4 The dotted arc in the diagram represents the inward bending trajectory of the thin-walled steel bending plate 2-1. Stirrups 4 are welded between two opposing thin-walled steel bending plates 2-1. The welded thin-walled steel bending plates 2-1 and the stirrups 4 are used to enhance the stability and deformation resistance of the thin-walled steel layer 2.
[0039] The thin-walled steel layer 2 is also provided with concrete flow holes 5 evenly distributed to facilitate the flow of poured concrete and enable the concrete to fill all the voids inside the template layer 1.
[0040] The template layer 1 and the thin-walled steel layer 2 are fixedly connected by screws 6.
[0041] 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.
[0042] At the inflection point of the thin-walled steel layer 2, additional vertical reinforcing bars 7 are provided according to structural calculation requirements to enhance the overall strength of the poured concrete column.
[0043] The screw 6 is either a self-tapping screw or a female screw.
[0044] 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.
[0045] Vent holes 8 are also evenly distributed on the thin-walled steel layer 2.
[0046] In actual construction, this utility model can be divided into concrete column casting molds and concrete beam casting molds. The template layer 1 is provided on all four sides of the concrete column casting mold, while the template layer 1 is not provided on the upper surface of the concrete beam casting mold.
[0047] The main construction process of this utility model is as follows:
[0048] 1. Process thin-walled steel plates in the factory according to the detailed drawings: cutting, hole cutting, bending and welding (welding steel plates to steel plates, welding steel plates to stirrups);
[0049] 2. Based on the detailed drawings, the templates are processed in the factory: cutting and hole cutting;
[0050] 3. Assemble thin-walled steel plates and formwork, and pre-embed pipelines in the factory according to the detailed drawings;
[0051] 4. Transported from the factory to the construction site for positioning and connection;
[0052] 5. Install additional reinforcing bars on site and seal the joints with adhesive strips;
[0053] 6. Inspect the sealing of pipelines and joints;
[0054] 7. Concrete pouring;
[0055] 8. After the concrete has hardened, grind down any uneven areas.
[0056] 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 casting mold with a self-contained, non-removable formwork and composed of thin-walled steel and reinforcing bars, comprising an outer formwork layer (1) and a thin-walled steel layer (2) disposed inside the formwork layer (1), wherein the formwork layer (1) and the thin-walled steel layer (2) are assembled together to form a concrete casting cavity (3), and the formwork layer (1) is used as a mold for concrete casting, characterized in that: The thin-walled steel layer (2) is also provided with inwardly oriented thin-walled steel bent plates (2-1) evenly spaced apart. Stirrups (4) are welded between two opposite thin-walled steel bent plates (2-1). The thin-walled steel bent plates (2-1) and the stirrups (4) are fixedly welded together to enhance the stability and deformation resistance of the thin-walled steel layer (2). The thin-walled steel layer (2) is also uniformly provided with concrete flow holes (5) to facilitate the flow of poured concrete and enable the concrete to fill all the voids inside the template layer (1). The template layer (1) and the thin-walled steel layer (2) are fixedly connected by screws (6); 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 casting mold with self-contained, non-removable formwork and composed of thin-walled steel and reinforcing bars as described in claim 1, is characterized in that, At the inflection point of the thin-walled steel layer (2), additional vertical reinforcing bars (7) are also provided to enhance the overall strength of the concrete column after pouring.
3. The casting mold with self-contained, non-removable formwork and composed of thin-walled steel and reinforcing bars as described in claim 1, is characterized in that... The screw (6) is either a self-tapping screw or a female screw.
4. The casting mold with self-contained, non-removable formwork and composed of thin-walled steel and reinforcing bars as described in claim 1, characterized in that, 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 other geometric shapes.
5. The casting mold with self-contained, non-removable formwork and composed of thin-walled steel and reinforcing bars as described in claim 1, characterized in that, Vent holes (8) are also evenly distributed on the thin-walled steel layer (2).