Fabricated thin-wall steel concrete composite wall pouring mold with non-dismantling formwork

Abstract

The utility model provides an assembly type thin-wall steel concrete composite wall pouring mold with a non-dismantling formwork, which comprises a formwork layer on the outer side and a thin-wall steel layer arranged on the inner side of the formwork layer, and after the formwork layer and the thin-wall steel layer are combined and assembled, a concrete pouring space structure is formed inside. The concrete pouring space structure is characterized in that the concrete pouring space structure comprises a wall body face and a wall end face, the length of the wall body face is larger than that of the wall end face, inward thin-wall steel bent plates are evenly arranged on a thin-wall steel layer forming the wall body face at intervals, and every two opposite thin-wall steel bent plates are fixedly connected through welding. Every two adjacent thin-wall steel bars are fixedly connected through welding, and the formwork layer is made of one of calcium silicate boards, cement fiber pressure boards, lightweight concrete fiber boards or other inorganic non-metal material boards. 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 thin-walled steel-concrete composite wall pouring mold with a self-contained, non-removable template. Background technology:

[0002] Currently, formwork is required during the construction of concrete wall casting molds, with longitudinal reinforcement and stirrups laid inside. After casting, the tensile force of the concrete wall is mainly borne by the longitudinal reinforcement, while the shear force is mainly borne by the stirrups and concrete.

[0003] The above-mentioned concrete wall 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 wall 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 wall casting mold that eliminates the need for external supports or brackets to enhance system rigidity and eliminates the need for formwork removal, thereby reducing labor, construction time, and resource waste. The mold comprises 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 an internal concrete casting space structure. The formwork layer serves as the mold for concrete casting. After concrete is poured into the concrete casting space structure, a thin-walled steel-concrete composite wall is formed. Its key features are:

[0008] The concrete pouring space structure includes a wall surface and a wall end surface. The length of the wall surface is greater than the length of the wall end surface. On the thin-walled steel layer that makes up the wall surface, inwardly bent thin-walled steel plates are evenly spaced. Two opposite thin-walled steel bent plates are fixedly connected by welding, and two adjacent thin-walled steel plates are also fixedly connected by welding to enhance the stability and deformation resistance of the thin-walled steel layer.

[0009] The template layer and the thin-walled steel layer are fixedly connected by screws and through bolts. The through bolts serve as a connector between the template layer and the thin-walled steel layer, and at the same time, they are 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 concrete pouring space structure is one or a combination of several of the following: a straight cavity, an L-shaped cavity, a T-shaped cavity, and a Z-shaped cavity. After concrete is poured into the concrete pouring space structure, the resulting thin-walled steel-concrete composite wall is one or a combination of several of the following: a straight wall, an L-shaped wall, a T-shaped wall, and a Z-shaped wall.

[0012] At the apex of the internal corner of the concrete pouring space structure, additional vertical steel bars are provided according to the structural design calculations to enhance the overall strength of the poured concrete composite wall.

[0013] The screw is either a self-tapping screw or a female screw.

[0014] Vent holes are also evenly distributed on the thin-walled steel layer.

[0015] The holes left on the thin-walled steel layer that makes up the wall surface 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 layer that makes up the wall end face. The concrete flow holes facilitate the flow of poured concrete, so that the concrete can fill all the voids inside the formwork layer.

[0016] 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.

[0017] The through screw is installed at both ends of the straight-line concrete pouring space structure, and at both ends and internal turning points of the L-shaped, T-shaped, and Z-shaped concrete pouring space structures.

[0018] 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.

[0019] This utility model's combined wall system is a formwork-free, support-free, and plaster-free system, and it offers rapid construction, cost savings, and environmental friendliness. Its features are as follows:

[0020] 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.

[0021] 2. In this utility model, the welded thin-walled steel plates form a complete spatial structure;

[0022] 3. In this utility model, the thin-walled steel plate is provided with holes to facilitate concrete flow and ventilation;

[0023] 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.

[0024] 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;

[0025] 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.

[0026] 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;

[0027] 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.

[0028] 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:

[0029] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0030] Figure 2 This is a schematic diagram of the unfolded thin-walled steel layer of this utility model;

[0031] Figure 3 This is a spatial schematic diagram of the present invention;

[0032] Figure 4 This is a cross-sectional schematic diagram of the present invention when it is L-shaped;

[0033] Figure 5 This is a cross-sectional schematic diagram of the present invention when it is T-shaped;

[0034] Figure 6 This is a cross-sectional schematic diagram of the present invention when it is Z-shaped.

[0035] Attached image labels:

[0036] 1. Formwork layer; 2. Thin-walled steel layer; 3. Concrete pouring space structure; 4. Through bolt.

[0037] 5. Concrete flow hole; 6. Screw; 7. Additional reinforcing bar; 8. Vent hole

[0038] 2-1. Thin-walled steel bent plate; 3-1. Wall surface; 3-2. Wall end face. Detailed implementation method:

[0039] like Figures 1 to 6 As shown, this utility model provides a prefabricated thin-walled steel-concrete composite wall casting mold with a self-contained, non-removable template, including 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 space structure 3 is formed inside. The template layer 1 is used as a mold for concrete casting. After cement is poured into the concrete casting space structure 3, a thin-walled steel-concrete composite wall is formed. Its characteristic is:

[0040] The concrete pouring space structure 3 includes a wall surface 3-1 and a wall end surface 3-2. The length of the wall surface 3-1 is greater than the length of the wall end surface 3-2. On the thin-walled steel layer 2 that makes up the wall surface 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. Two opposite thin-walled steel plates 2-1 are fixedly connected by welding, and two adjacent thin-walled steel plates are also fixedly connected by welding to enhance the stability and deformation resistance of the thin-walled steel layer 2.

[0041] The template layer 1 and the thin-walled steel layer 2 are fixedly connected by screws 6 and through screws 4. The through screws 4 serve as a connector between the template layer 1 and the thin-walled steel layer 2, and are also used to limit the lateral deformation of the template layer 1 caused by the expansion pressure of concrete.

[0042] 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.

[0043] The concrete pouring space structure 3 is one or a combination of one or more of the following: a straight cavity, an L-shaped cavity, a T-shaped cavity, and a Z-shaped cavity. After cement is poured into the concrete pouring space structure 3, the thin-walled steel-concrete composite wall formed is one or a combination of one or more of the following: a straight wall, an L-shaped wall, a T-shaped wall, and a Z-shaped wall.

[0044] At the top corner of the internal corner of the concrete pouring space structure 3, additional vertical reinforcing bars 7 are provided according to the structural design calculations to enhance the overall strength of the poured concrete column.

[0045] The screw 6 is either a self-tapping screw or a female screw.

[0046] Vent holes 8 are also evenly distributed on the thin-walled steel layer 2.

[0047] After the thin-walled steel bending plate 2-1 on the thin-walled steel layer 2 that makes up the wall surface 3-1 is bent inward, the holes left on the thin-walled steel layer 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 layer 2 that makes up the wall end surface 3-2. The concrete flow holes 5 facilitate the flow of poured concrete, so that the concrete can fill all the voids inside the formwork layer 1.

[0048] 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.

[0049] The through screw 4 is installed at both ends of the straight-line concrete pouring space structure 3, and at both ends and internal turning points of the L-shaped, T-shaped, and Z-shaped concrete pouring space structures 3.

[0050] The main construction process of this utility model is as follows:

[0051] 1. Modular fabrication and pipeline pre-embedding and assembly are carried out in the factory according to the detailed drawings;

[0052] 2. The equipment is transported from the factory to the construction site for positioning and connection;

[0053] 3. Install additional reinforcing bars on site and seal the joints with adhesive strips;

[0054] 4. Inspect the sealing of pipelines and joints;

[0055] 5. Concrete pouring;

[0056] 6. After the concrete has hardened, grind down any uneven areas.

[0057] 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 thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork, comprising an outer formwork layer (1) and a thin-walled steel layer (2) disposed inside the formwork layer (1), wherein after the formwork layer (1) and the thin-walled steel layer (2) are assembled together, a concrete casting space structure (3) is formed inside, the formwork layer (1) is used as a mold for concrete casting, and after cement is poured into the concrete casting space structure (3), a thin-walled steel-concrete composite wall is formed, characterized in that: The concrete pouring space structure (3) includes a wall surface (3-1) and a wall end surface (3-2). The length of the wall surface (3-1) is greater than the length of the wall end surface (3-2). On the thin-walled steel layer (2) that makes up the wall surface (3-1), inwardly bent thin-walled steel plates (2-1) are evenly spaced apart. Two opposite thin-walled steel plates (2-1) are fixedly connected by welding. Two adjacent thin-walled steel plates are also fixedly connected by welding to enhance the stability and deformation resistance of the thin-walled steel layer (2). The template layer (1) and the thin-walled steel layer (2) are fixedly connected by screws (6) and through screws (4). The through screws (4) serve as a connector between the template layer (1) and the thin-walled steel layer (2) and are 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 thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 1, is characterized in that, The concrete pouring space structure (3) is one or a combination of one or more of the following: a straight cavity, an L-shaped cavity, a T-shaped cavity, and a Z-shaped cavity. After concrete is poured into the concrete pouring space structure (3), the thin-walled steel-concrete composite wall formed is one or a combination of one or more of the following: a straight wall, an L-shaped wall, a T-shaped wall, and a Z-shaped wall.

3. The prefabricated thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 1, is characterized in that... At the top corner of the internal corner of the concrete pouring space structure (3), additional vertical steel bars (7) are provided to enhance the overall strength of the concrete composite wall after pouring.

4. The prefabricated thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 1, is characterized in that... The screw (6) is either a self-tapping screw or a female screw.

5. The prefabricated thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 1, is characterized in that... Vent holes (8) are also evenly distributed on the thin-walled steel layer (2).

6. The prefabricated thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 1, is characterized in that, The holes left on the thin-walled steel layer (2) that makes up the wall surface (3-1) after the thin-walled steel bending plate (2-1) is bent inward 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 layer (2) that makes up the wall end face (3-2). The concrete flow holes (5) facilitate the flow of the poured concrete, so that the concrete can fill all the voids inside the template layer (1).

7. The prefabricated thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 6, 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.

8. The prefabricated thin-walled steel-concrete composite wall casting mold with self-contained, non-removable formwork as described in claim 1, is characterized in that, The through screw (4) is set at both ends of the straight concrete pouring space structure (3), and at both ends and internal turning points of the L-shaped, T-shaped and Z-shaped concrete pouring space structures (3).

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