A construction method of a thin-walled steel and fabricated formwork combined concrete pouring mold

Abstract

The application provides a thin-wall steel and fabricated formwork combined concrete pouring mold construction method, characterized by comprising the following steps: S1, part processing in a factory: including a formwork and a thin-wall steel; S2, mold assembling and connecting in the factory: fixing the formwork on the outside of the thin-wall steel, connecting the formwork and the thin-wall steel through self-tapping screws and through screw rods, forming a concrete pouring cavity inside, and uniformly and intervally arranging pull rods on the inside of the thin-wall steel; S3, on-site installation of additional steel bars and joint sealing strip sealing treatment; S4, pipeline and joint sealing inspection; S5, concrete pouring: pouring concrete in the concrete pouring cavity, using the formwork as a mold for concrete pouring, and using the thin-wall steel and the through screw rod for bearing the expansion tensile stress after the concrete pouring; and S6, polishing treatment is performed on local uneven places after the concrete hardens, and the construction is completed. The application does not need to install a support outside the formwork, does not need to improve the rigidity of the system, does not need to be installed on site, and does not need to be removed.

Description

Technical fields:

[0001] This invention relates to the technical field of concrete pouring molds in the construction industry, specifically to a construction method for a concrete pouring mold combining thin-walled steel and prefabricated formwork. Background technology:

[0002] Currently, there are several main types of formwork for concrete pouring, and their construction processes and characteristics are as follows:

[0003] (1) Wooden formwork, made of pine, fir, or other woods; the construction process is as follows: 1. Make the formwork according to the drawings; 2. Install and calibrate on site; 3. Pour concrete; 4. Remove the formwork. Disadvantages include: easy to be affected by moisture and deform, low reusability, and waste of resources.

[0004] (2) Steel formwork: The material is steel plate and structural steel; the construction process is as follows: 1. Precast formwork; 2. On-site installation and fixing; 3. Pouring concrete; 4. Mechanical demolding. Disadvantages include: high initial cost, heavy weight, and the need for mechanical equipment.

[0005] (3) Aluminum formwork: The material is aluminum alloy; the construction process is as follows: 1. Precast formwork; 2. On-site installation and fixing; 3. Pouring concrete; 4. Demolding. Disadvantages include: high initial cost and high requirements for construction technology.

[0006] (4) Plastic formwork: The material is high-strength plastic / composite material; the construction process is: 1. Precast formwork; 2. On-site installation and fixing; 3. Pouring concrete; 4. Demolding. Disadvantages include: low strength and rigidity, only suitable for small projects.

[0007] (5) Plywood formwork: The material is multi-layer plywood; the construction process is as follows: 1. Make the formwork according to the drawings; 2. Install and calibrate on site; 3. Pour concrete; 4. Remove the formwork. Disadvantages include: easy to be affected by moisture and deform, and low reusability.

[0008] (6) Combined steel formwork: The material is a combination of steel plates and structural steel; the construction process is as follows: 1. Precast formwork; 2. Assemble and fix on site; 3. Pour concrete; 4. Mechanical demolding. Disadvantages include: high initial cost, heavy weight, and the need for mechanical equipment.

[0009] Meanwhile, the aforementioned concrete casting molds also share the following drawbacks:

[0010] (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.

[0011] (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. Summary of the Invention:

[0012] 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, requires no on-site installation, and eliminates the need for mold dismantling, thereby reducing labor, construction time, and resource waste. The invention also provides a construction method for a concrete pouring mold combining thin-walled steel and prefabricated formwork, characterized by the following steps:

[0013] S1. Component processing in the factory:

[0014] According to the drawings, the components required for the mold are modularly processed in the factory, including templates and thin-walled steel. The template 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.

[0015] S2. Mold assembly and connection at the factory:

[0016] The template is fixed to the outside of the thin-walled steel. The template and the thin-walled steel are fixedly connected by self-tapping screws and through screws. After the template and the thin-walled steel are assembled, a concrete pouring cavity is formed inside. Tie rods are evenly spaced on the inner side of the thin-walled steel to enhance the stability and deformation resistance of the thin-walled steel. The through screws serve as the connecting parts between the template and the thin-walled steel, and are also used to limit the lateral deformation of the template caused by the expansion pressure of the concrete.

[0017] S3. On-site installation of additional reinforcing bars and sealing of joints with adhesive strips:

[0018] Vertical additional reinforcing bars are installed at the inflection points of the thin-walled steel to enhance the overall strength of the poured concrete column. Adhesive strips are used to seal the joints of the formwork.

[0019] S4. Pipeline and joint sealing inspection.

[0020] S5. Concrete pouring:

[0021] Concrete is poured into the concrete pouring cavity, the template is used as a mold for concrete pouring, and the thin-walled steel and through screw are used to withstand the expansion tensile stress after the concrete is poured.

[0022] S6. After the concrete has hardened, grind down any uneven areas to complete the construction.

[0023] In step S1, when processing the thin-walled steel, concrete flow holes are also uniformly provided on the thin-walled steel. The concrete flow holes facilitate the flow of poured concrete, so that the concrete can fill all the voids inside the template.

[0024] In step S3, when the concrete pouring cavity is one of an L-shaped cavity, a T-shaped cavity, or a Z-shaped cavity, additional connecting steel bars are provided at the internal corner of the concrete pouring cavity to strengthen the bonding force between the concrete on both sides of the corner, so that they form a whole.

[0025] The tie rod is made of perforated thin-walled steel welded together, which further enhances the stability and deformation resistance of the thin-walled steel layer.

[0026] Vent holes are also evenly distributed on the thin-walled steel layer.

[0027] The present invention also provides a concrete pouring mold with a combination structure of thin-walled steel and prefabricated formwork, including an outer formwork layer and a thin-walled steel layer disposed inside the formwork layer. After the formwork layer and the thin-walled steel layer are assembled together, a concrete pouring cavity is formed inside. The formwork layer is used as a mold for concrete pouring.

[0028] The thin-walled steel layer is also provided with tie rods at uniform intervals on its inner side to enhance the stability and deformation resistance of the thin-walled steel layer.

[0029] 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.

[0030] The template layer and the thin-walled steel layer are fixedly connected by self-tapping screws and through screws. The through screws serve as a connector between the template layer and the thin-walled steel layer, and are also used to limit the lateral deformation of the template layer caused by the expansion pressure of concrete. The thin-walled steel layer and the through screws are used to withstand the expansion tensile stress after the concrete is poured.

[0031] 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.

[0032] At the inflection point of the thin-walled steel layer, additional vertical reinforcing bars are also provided to enhance the overall strength of the concrete column after pouring.

[0033] When the template layer and the thin-walled steel layer are assembled together, and the concrete pouring cavity formed inside is one of an L-shaped cavity, a T-shaped cavity, or a Z-shaped cavity, additional connecting steel bars are also provided at the internal corners of the concrete pouring cavity to strengthen the bonding force between the concrete on both sides of the corner, so that they form a whole.

[0034] The tie rod is made of perforated thin-walled steel welded together, which further enhances the stability and deformation resistance of the thin-walled steel layer.

[0035] Vent holes are also evenly distributed on the thin-walled steel layer.

[0036] The present invention has the following advantages: simple installation, convenient and fast construction, good performance, cost saving, and green environmental protection.

[0037] Its characteristics are as follows:

[0038] 1. When the template system of the present invention is connected on site, since the template system is fixed on the thin-walled steel system, the thin-walled steel system can bear the construction load, and there is no need to make a traditional template support system (support and bracing), which reduces the labor and construction period of the construction support system.

[0039] 2. The main materials of the template system of this invention are calcium silicate board, cement fiber pressure board, lightweight concrete fiber board or other inorganic non-metallic material boards. After the concrete is poured, the template does not need to be removed, which greatly reduces the amount of demolding work and on-site waste disposal. It is a green and environmentally friendly building material.

[0040] 3. The template system of this invention is modularly processed and assembled in the factory according to the detailed drawings. It belongs to a type of prefabricated template building material. The majority of the template installation work is completed in the factory. Only local connection and fixation are required on site. The on-site workload is very small, thereby improving efficiency and reducing costs.

[0041] 4. The template system of this invention has sufficient rigidity and is not easily deformed, which can ensure the flatness of the structural surface. Attached image description:

[0042] Figure 1 This is a schematic diagram of the cross-section of the standard beam and column of this invention;

[0043] Figure 2 This is a schematic diagram showing the unfolded shape of the standard beam and column of this invention;

[0044] Figure 3 This is a schematic diagram of the cross-section of the L-shaped beam-column of the present invention;

[0045] Figure 4 This is a schematic diagram of the cross-section of the T-shaped beam-column of the present invention;

[0046] Figure 5 This is a schematic cross-sectional view of the Z-shaped beam-column of the present invention;

[0047] Figure 6 This is a cross-sectional schematic diagram of the standard plate of the present invention;

[0048] Figure 7 This is a schematic diagram of the unfolded standard plate of the present invention.

[0049] Attached image labels:

[0050] 1. Template 2. Thin-walled steel 3. Concrete pouring cavity 4. Tie rod

[0051] 5. Concrete flow hole; 6. Self-tapping screw; 7. Through bolt; 8. Additional reinforcement for column.

[0052] 9. Connect additional reinforcing bars 10. Vent holes Detailed implementation method:

[0053] like Figures 1 to 5 As shown, the present invention provides a construction method for a concrete pouring mold combining thin-walled steel and prefabricated formwork, characterized by comprising the following steps:

[0054] S1. Component processing in the factory:

[0055] According to the drawings, the components required for the mold are modularly processed in the factory, including template 1 and thin-walled steel 2. The template 1 is made of one of the following materials: calcium silicate board, cement fiber pressure board, lightweight concrete fiber board or other inorganic non-metallic material boards.

[0056] S2. Mold assembly and connection at the factory:

[0057] The template 1 is fixed to the outside of the thin-walled steel 2. The template 1 and the thin-walled steel 2 are fixedly connected by self-tapping screws 6 and through screws 7. After the template 1 and the thin-walled steel 2 are assembled, a concrete pouring cavity 3 is formed inside. Tie rods 4 are evenly spaced on the inner side of the thin-walled steel 2 to enhance the stability and deformation resistance of the thin-walled steel 2. The through screws 7 serve as the connecting parts between the template 1 and the thin-walled steel 2, and are also used to limit the lateral deformation of the template 1 caused by the expansion pressure of the concrete.

[0058] S3. On-site installation of additional reinforcing bars and sealing of joints with adhesive strips:

[0059] Vertical additional reinforcing bars 8 are installed at the inflection points of the thin-walled steel 2 to enhance the overall strength of the concrete column after pouring. Adhesive strips are used to seal the joints of the template 1.

[0060] S4. Pipeline and joint sealing inspection.

[0061] S5. Concrete pouring:

[0062] Concrete is poured into the concrete pouring cavity 3. The template 1 is used as a mold for concrete pouring. The thin-walled steel 2 and the through screw 7 are used to withstand the expansion tensile stress after the concrete is poured.

[0063] S6. After the concrete has hardened, grind down any uneven areas to complete the construction.

[0064] In step S1, when processing the thin-walled steel 2, concrete flow holes 5 are also uniformly provided on the thin-walled steel 2. The concrete flow holes 5 facilitate the flow of poured concrete, so that the concrete can fill all the voids inside the template 1.

[0065] In step S3, when the concrete pouring cavity 3 is one of an L-shaped cavity, a T-shaped cavity, or a Z-shaped cavity, additional connecting steel bars 9 are provided at the internal corner of the concrete pouring cavity 3 to strengthen the bonding force between the concrete on both sides of the corner, so that they form a whole.

[0066] The tie rod 4 is made of perforated thin-walled steel welded together, which further enhances the stability and deformation resistance of the thin-walled steel layer 2.

[0067] Vent holes 10 are also evenly distributed on the thin-walled steel layer 2.

[0068] The present invention also provides a concrete pouring mold with a combination structure of thin-walled steel and prefabricated formwork, including an outer formwork layer 1 and a thin-walled steel layer 2 disposed on the inner side of the formwork layer 1. After the formwork layer 1 and the thin-walled steel layer 2 are assembled together, a concrete pouring cavity 3 is formed inside. The formwork layer 1 is used as a mold for concrete pouring.

[0069] Tie rods 4 are also evenly spaced on the inner side of the thin-walled steel layer 2 to enhance the stability and deformation resistance of the thin-walled steel layer 2.

[0070] 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.

[0071] The template layer 1 and the thin-walled steel layer 2 are fixedly connected by self-tapping screws 6 and through screws 7. The through screws 7 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 thin-walled steel layer 2 and the through screws 7 are used to withstand the expansion tensile stress after the concrete is poured.

[0072] 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.

[0073] At the inflection point of the thin-walled steel layer 2, additional vertical column reinforcement 8 is also provided to enhance the overall strength of the concrete column after pouring.

[0074] When the template layer 1 and the thin-walled steel layer 2 are assembled together, and the concrete pouring cavity 3 formed inside is one of the L-shaped cavity, T-shaped cavity, or Z-shaped cavity, additional connecting steel bars 9 are also provided at the internal corner of the concrete pouring cavity 3 to strengthen the bonding force between the concrete on both sides of the corner, so that they form a whole.

[0075] The tie rod 4 is made of perforated thin-walled steel welded together, which further enhances the stability and deformation resistance of the thin-walled steel layer 2.

[0076] Vent holes 10 are also evenly distributed on the thin-walled steel layer 2.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method for a concrete pouring mold combining thin-walled steel and prefabricated formwork, characterized in that, It includes the following steps: S1. Component processing in the factory: According to the drawings, the components required for the mold are modularly processed in the factory, including template (1) and thin-walled steel (2). The template (1) is made of calcium silicate board, cement fiber pressure board, lightweight concrete fiber board or other inorganic non-metallic material board. S2. Mold assembly and connection at the factory: The template (1) is fixed to the outside of the thin-walled steel (2). The template (1) and the thin-walled steel (2) are fixedly connected by self-tapping screws (6) and through screws (7). After the template (1) and the thin-walled steel (2) are assembled, a concrete pouring cavity (3) is formed inside. Tie rods (4) are evenly spaced on the inside of the thin-walled steel (2) to enhance the stability and deformation resistance of the thin-walled steel (2). The through screws (7) serve as the connecting parts between the template (1) and the thin-walled steel (2) and are used to limit the lateral deformation of the template (1) caused by the expansion pressure of concrete. S3. On-site installation of additional reinforcing bars and sealing of joints with adhesive strips: Vertical additional column reinforcement (8) is provided at the inflection point of the thin-walled steel (2) to enhance the overall strength of the concrete column after pouring. Adhesive strips are used to seal the joints of the template (1). S4. Pipeline and joint sealing inspection; S5. Concrete pouring: Concrete is poured into the concrete pouring cavity (3), the template (1) is used as a mold for concrete pouring, and the thin-walled steel (2) and the through screw (7) are used to bear the expansion tensile stress after the concrete is poured. S6. After the concrete has hardened, grind down any uneven areas to complete the construction.

2. The construction method for concrete pouring molds combining thin-walled steel and prefabricated formwork according to claim 1, characterized in that, In step S1, when processing the thin-walled steel (2), concrete flow holes (5) are uniformly provided on the thin-walled steel (2). The concrete flow holes (5) facilitate the flow of poured concrete, so that the concrete can fill all the gaps inside the template (1).

3. The construction method for concrete pouring molds combining thin-walled steel and prefabricated formwork according to claim 1, characterized in that, In step S3, when the concrete pouring cavity (3) is one of an L-shaped cavity, a T-shaped cavity, or a Z-shaped cavity, additional connecting steel bars (9) are provided at the internal corner of the concrete pouring cavity (3) to strengthen the bonding force between the concrete on both sides of the corner and make them form a whole.

4. The construction method for concrete pouring molds combining thin-walled steel and prefabricated formwork according to claim 1, characterized in that, The tie rod (4) is made of perforated thin-walled steel welded together, thereby further enhancing the stability and deformation resistance of the thin-walled steel layer (2).

5. The construction method for concrete pouring molds combining thin-walled steel and prefabricated formwork according to claim 1, characterized in that, Vent holes (10) are also evenly distributed on the thin-walled steel layer (2).

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