Flat plate type girder pouring formwork mounting structure

Abstract

The utility model relates to the technical field of building molds, in particular to a flat plate type girder pouring formwork installation structure which comprises a formwork shell, a formwork, a first supporting assembly and a second supporting assembly, the formwork shell is provided with a flange edge, the formwork is provided with a horizontal forming face, the bottom face is provided with latticed reinforcing ribs, and the first supporting assembly and the second supporting assembly are arranged on the formwork shell. A limiting groove or a limiting protrusion is arranged on the bottom face of the formwork, a first connecting hole is formed in the end face of the formwork, the second supporting assembly comprises at least two sets of parallel strip-shaped supporting parts, during installation, the bottom face of the formwork and the supporting parts can directly form limiting, the formwork is fixed in the horizontal direction and does not move, materials of battens and wood molds are omitted, and the construction cost is reduced. The material cost and the labor cost are greatly reduced, the modular design is adopted, rapid installation can be achieved, rapid assembly and disassembly and turnover and repeated use are achieved through standardized modular structure and fastener connection, the construction cost is reduced, and the efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of building mold technology, specifically to a flat main beam casting template installation structure. Background Technology

[0002] In existing technologies, scaffolding is generally used as a support when pouring main beams. A top support is set on top of the scaffolding, and timber is placed inside the top support. Then, wooden formwork is laid on the timber, and finally, formwork for beam forming is laid. When fixing the formwork, a hammer is used to drive nails through the formwork from top to bottom. The nails are connected to the wooden formwork and timber below to ensure a stable connection. However, this construction method requires a large amount of timber and wooden formwork, resulting in high material and labor costs. There is still room for cost savings in construction. Utility Model Content

[0003] The problem solved by this utility model is that the existing construction process requires a stator for fixation, which requires a large amount of timber and wooden formwork, resulting in high material and labor costs. This utility model provides a more efficient and safer flat-plate main beam casting formwork installation structure.

[0004] This utility model is achieved through the following technical solution: a flat-plate main beam casting formwork installation structure, comprising:

[0005] A mold shell, wherein the mold shell is provided with a flange edge; the flange edges of adjacent mold shells abut against each other;

[0006] The template comprises multiple pieces, all integrally molded from plastic. The vertical projection of each template is rectangular. Each template has a horizontal forming surface used for forming the main beam. The bottom surface of the template has mesh-like reinforcing ribs and limiting grooves or protrusions. The limiting grooves are strip-shaped grooves along the length of the template, and the limiting protrusions are scattered block-shaped protrusions or strip-shaped protrusions along the length of the template. Two end faces of the template along its length have first connecting holes, with adjacent templates having the same position of their first connecting holes. Multiple templates can be connected into a whole using fasteners passing through the first connecting holes.

[0007] The first support assembly is used to support the bottom surface of the flange edge of the mold shell;

[0008] The second support assembly includes at least two sets of parallel strip-shaped support portions placed on a C-shaped top support. The length direction of the support portions is consistent with the length direction of the template. The support portions and the bottom surface of the template abut against each other to form support. At least one set of strip-shaped support portions and the limiting portion of the template form a horizontal limiting position. The limiting position includes one or more of the following methods:

[0009] 1. All or part of the support part extends into the limit groove, and the side wall of the limit groove limits the support part or the top support in the horizontal direction;

[0010] 2. The limit protrusions are located on both sides of the support part, and the side walls of the limit protrusions limit the support part or the top support in the horizontal direction;

[0011] During installation, multiple templates are connected into a whole through fasteners passing through the first connection holes and are positioned and supported by the second support assembly. The formwork shells are arranged in an array, and the mating surfaces of adjacent formwork shells are in contact. The flange edges of the formwork shells adjacent to the templates are placed on both sides of the forming surface of the template. The side surfaces of the formwork shells of two rows and the forming surface of the template in the middle enclose an open pouring space for the main beam.

[0012] Further, to ensure the support strength of the formwork shell and prevent the formwork shell from deforming, the width of the overlap between the flange edge of the formwork shell and the upper surface of the template is ≥5 cm.

[0013] Further, to meet the width requirement of the beam, the width of the template is ≥50 cm.

[0014] Further, to ensure the structural strength of the template, the thickness of the template is ≥5 cm.

[0015] Further, for convenient installation, the second support assembly includes a scaffolding main body, a top support, and a support part. The scaffolding main body includes vertical poles and horizontal bars. A height-adjustable top support is provided at the top of the vertical pole. The top support is C-shaped, and the support part is strip-shaped and is supported by multiple top supports simultaneously.

[0016] Further, the first support assembly and the second support assembly are connected and fixed through a horizontal bar, so that the first support assembly and the second support assembly are connected into one body and the structure is more stable.

[0017] Further, the support part includes one of a wooden square, a square pipe, and a round pipe. Multiple wooden squares or square pipes or round pipes are arranged side by side as a support part. The materials are relatively common and easy to obtain.

[0018] Further, to make the lower surface of the main beam flush with the lower surface of the ribbed beam, the forming surface of the template protrudes upward, higher than the parts on both sides for supporting the formwork shell, and the cross-section forms a "convex" shape. The protruding height is the same as the thickness of the flange edge of the formwork shell.

[0019] Further, this solution is applied to the construction of the main beam at the middle position of a multi-span ribbed floor with column caps.

[0020] Furthermore, the mold shell includes a top surface of the mold shell, and a ring of downwardly extending side surfaces of the mold shell connected around the top surface of the mold shell. The top surface of the mold shell and the side surfaces of the mold shell that surround it form a cavity. The lower edge of the side surfaces of the mold shell continues to extend horizontally outward to form a flange edge. The outer contour of the flange edge is rectangular, and the vertical end face of the free end of the outer edge of the flange edge is the mating surface between the mold shells.

[0021] The beneficial effects of this utility model are:

[0022] 1. This utility model is green and environmentally friendly. Both the mold shell and the template are made of recyclable plastic in one piece. After being scrapped, they can be reprocessed and reused, reducing resource waste and conforming to the concept of sustainable development.

[0023] 2. This utility model adopts a modular design, which can be installed quickly. Through standardized modular structure and fastener connection, it can be quickly assembled and disassembled, reused repeatedly, reduce construction costs and improve efficiency.

[0024] 3. The template of this utility model is provided with a limiting groove or a limiting protrusion, and the bottom surface of the template and the support part can directly form a limiting position, thereby fixing the template in the horizontal direction and preventing it from moving. It eliminates the need for materials such as wooden blocks and wooden molds, and eliminates the need for nailing. The template can be placed directly on the second support component to complete the limiting, which greatly reduces material costs and labor costs. Attached Figure Description

[0025] Figure 1 A structural diagram of the formwork installation structure for a flat main beam (Example 1);

[0026] Figure 2 This is a schematic diagram of the mold shell structure (top-view 3D view);

[0027] Figure 3 This is a schematic diagram of the mold shell structure (3D view from below).

[0028] Figure 4 A schematic diagram of the template structure (top-down 3D view);

[0029] Figure 5 A structural schematic diagram of the template (3D view from below);

[0030] Figure 6 A partially enlarged view of the formwork installation structure for a flat main beam (Example 1);

[0031] Figure 7 A partially enlarged view of the formwork installation structure for a flat main beam (Example 2);

[0032] Figure 8 A partially enlarged view of the formwork installation structure for the flat main beam (Example 3);

[0033] Figure 9 A partially enlarged view of the formwork installation structure for the flat main beam (Example 4).

[0034] In the picture:

[0035] 100 Mold shell; 101 Top surface of mold shell; 102 Side surface of mold shell; 103 Cavity; 104 Flange edge; 105 Mating surface;

[0036] 200 Template; 201 Forming surface; 202 First connecting hole; 203 Reinforcing rib; 204 Limiting groove; 205 Limiting protrusion;

[0037] 300 First Support Component;

[0038] 400 Second support component; 401 Support part; 402 Scaffold body; 403 Top support. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Example 1

[0041] like Figure 1-6 As shown, a flat-plate main beam casting formwork 200 installation structure includes: a formwork shell 100, as shown... Figure 2-3As shown, the mold shell includes a top surface 101, and a ring of downwardly extending side surfaces 102 connected around the top surface 101. The top surface 101 and the surrounding side surfaces 102 form a cavity 103, which can reduce weight. The cavity 103 can be provided with crisscrossing reinforcing ribs. The lower edge of the side surfaces 102 continues to extend outward horizontally to form a flange edge 104. The outer contour of the flange edge 104 is rectangular. The vertical end face of the free end of the outer edge of the flange edge 104 is the mating surface 105 between the mold shells 100. The mating surface 105 is vertical and flat. The mold shells 100 are arranged in an array, and the mating surfaces 105 of adjacent mold shells 100 are mated together. The right angles of the four mold shells 100 abut each other, ensuring that there are no leakage points between the mold shells 100 after installation. When the mating surfaces 105 of the two mold shells 100 abut each other, the two adjacent flange edges 104 directly form the bottom surface of the ribbed beam. The width of the flange edge 104 is the width of the ribbed beam. Compared with the prior art, no additional wooden mold is needed between the mold shells 100 and the mold shells 100. The wooden mold is used to fill the gap between the mold shells 100 and the bottom surface of the ribbed beam. Therefore, the use of wooden molds is reduced and the amount of construction work is also reduced.

[0042] Template 200, such as Figure 4-5 As shown, the template 200 consists of multiple pieces, all integrally molded from plastic, with a width of 80cm and a thickness of 5cm. Plastic products are recyclable; if the mold shell 100 or template 200 is scrapped, it can be recycled into new templates 200 and mold shell 100, preventing material waste and making it relatively environmentally friendly. The vertical projection of the template 200 is rectangular. The template 200 has a horizontal forming surface 201, which is used for forming the main beam. The bottom surface of the template 200 is provided with mesh-like reinforcing ribs 203, the main function of which is to ensure structural integrity. While increasing strength, it can also reduce its own weight and save materials. The bottom surface of the template 200 is provided with a limiting groove 204. The limiting groove 204 is a strip-shaped groove along the length direction of the template 200. The two end faces of the template 200 along the length direction are provided with first connecting holes 202. The positions of the first connecting holes 202 of adjacent templates 200 are consistent. Multiple templates 200 can be connected into a whole by fasteners passing through the first connecting holes 202. The number of limiting grooves 204 can be one or more. In this solution, there is only one limiting groove 204, which is set in the middle of the bottom surface of the template 200.

[0043] The first support component 300 is used to support the bottom surface of the flange edge 104 of the mold shell 100. This solution does not impose many restrictions on the first support component 300, as long as it can support the bottom surface of the flange edge 104 of the mold shell 100. The figure of this solution uses scaffolding + top support 403 + strip support part 401, which is consistent with the structure of the second support component 400. This makes the materials universal and facilitates the erection of scaffolding.

[0044] The second support component 400 includes at least two sets of parallel strip-shaped support parts 401. This solution uses three sets of parallel strip-shaped support parts 401. The strip-shaped support parts 401 are generally made of materials readily available on the construction site, such as timber, square tubes, or round tubes. This solution uses round tubes; 48mm outer diameter round tubes are commonly used in scaffolding, have many material acquisition channels, universal specifications, and low cost. Three round tubes are arranged side-by-side as one support part 401. The support part 401 is placed on a C-shaped top support 403. The top support 403 generally has an adjusting nut, allowing the height of the top support 403 to be adjusted according to actual needs to achieve different support heights. The length direction of the support part 401 is consistent with the length direction of the template 200, and the support part 401 and the bottom surface of the template 200 abut against each other to form support.

[0045] This scheme is applied to the construction of the main beam in the middle position of a multi-span Miller floor slab. During installation:

[0046] The first step involves erecting the first support assembly 300 and the second support assembly 400, both employing a structure of scaffold body 402 + top support 403 + support section 401. The scaffold body 402 includes uprights and horizontal bars. Each upright has a height-adjustable top support 403, which is C-shaped. The support section 401 is strip-shaped and supported by multiple top supports 403 simultaneously. The first support assembly 300 and the second support assembly 400 are connected and fixed by horizontal bars. The second support assembly 400 has three support sections 401, with the middle support section 401 higher than the two outer support sections 401. This height difference matches the height difference between the bottom surface of the formwork 100 and the limiting groove 204.

[0047] The second step involves erecting the template 200. Each template 200 has a fixed length (1.2m, 80cm, 5cm in this design). Multiple templates 200 are spliced ​​together to achieve the required length. These multiple templates are connected as a whole via fasteners passing through the first connecting hole 202. This assembly process can be completed on the floor, followed by hoisting. Alternatively, the templates 200 can be placed one by one onto the second support component 400 before assembly. If the dimensions do not meet the requirements, excess length can be cut off on-site, or a custom length can be made. Because it is made of plastic, the cut fragments and non-standard parts can be recycled. The template 200 is placed on the second support component 400, with the central support part 401 extending into the limiting groove 204. The side wall of the limiting groove 204 horizontally limits the top support 403. The bottom two sides of the template 200 are square above the other two support parts 401. The length of the template 200 abuts against the column, and the left and right directions are limited by the support parts 401 and the limiting grooves 204. Therefore, the template 200 is fixed in the horizontal direction and will not move. It saves the materials of wooden blocks and wooden molds, and there is no need to hammer nails. The template 200 can be directly placed on the second support component 400 to complete the limiting, which greatly reduces material costs and labor costs.

[0048] The third step is to erect the mold shell 100. The mold shells 100 are arranged in an array, and the mating surfaces 105 of the mold shells 100 are in close contact with each other. The flange edges 104 of the mold shells 100 adjacent to the template 200 are placed on both sides of the forming surface 201 of the template 200. The width of the overlap between the flange edges 104 of the mold shells 100 and the upper surface of the template 200 is ≥5cm. The side surfaces 102 of the two rows of mold shells 100 and the forming surface 201 of the template 200 in the middle form an open casting space for the main beam.

[0049] After completing the above steps, tie the reinforcing bars, pour the concrete, and after curing for several days, dismantle the scaffolding, formwork 100, and template 200 for reuse.

[0050] Example 2

[0051] like Figure 7 As shown, the difference from Embodiment 1 lies in the number of strip support parts 401 and limiting grooves 204. In this embodiment, two sets of strip support parts 401 are provided because the template 200 of this solution is relatively narrow, only 50cm wide, so only two sets of parallel strip support parts 401 are needed. Similarly, there are also two limiting grooves 204. During installation, the two sets of strip support parts 401 extend into the limiting grooves 204 at the same time, and the template 200 is limited in the horizontal direction.

[0052] Example 3

[0053] like Figure 8 As shown, the difference from the above embodiments is that a limiting protrusion 205 is provided at the bottom of the template 200. There are two rows of the limiting protrusions 205, and three groups of strip-shaped support portions 401 are provided. The limiting protrusions 205 are distributed on both sides of the middle strip-shaped support portion 401, playing a role in limiting.

[0054] Embodiment 4

[0055] As Figure 9 shown, the difference from the above embodiments is that the forming surface 201 of the template 200 bulges upward, higher than the parts on both sides for supporting the formwork shell 100, and the cross-section forms a "convex" shape. The height difference between the protruding height and the thickness of the flange 104 of the formwork shell 100 is not greater than 1 cm. In this solution, the protruding height is equal to the thickness of the flange 104 of the formwork shell 100. In this solution, the flange 104 of the formwork shell 100 places the template 200 on the relatively low sides. Even the fitting surface 105 of the formwork shell 100 abuts against the side surface of the step surface of the formwork shell 100. In this way, the lower surface of the main beam formed is flush with the lower surface of the ribbed beam, presenting the visual sense of a flat slab floor. If the fitting surface 105 of the formwork shell 100 cannot be fitted with the side surface of the step surface of the template 200, fillers can be filled in the gap. The fillers can be materials easily used at the construction site such as wooden squares and wooden molds.

[0056] In summary, the installation structure of the flat-type main beam pouring template 200 described in the present invention has the advantages of simple structure, convenient installation, automatic positioning, reusable turnover, and meeting the construction requirements of ribbed floor main beams with different spans.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments are only for explaining the technical concept and features of the present invention, and the purpose is to enable those familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A slab girder formwork installation structure, characterized by: The shell (100) is provided with a flange (104), and the flanges (104) of adjacent shells (100) abut each other. The formwork (200) is integrally formed by plastic processing, and the vertical projection of the formwork (200) is a rectangle. The formwork (200) is provided with a horizontal forming surface (201) for forming a main beam. The formwork (200) is provided with a grid-shaped reinforcing rib (203) on the bottom surface. The formwork (200) is provided with a limiting groove (204) or a limiting protrusion (205) on the bottom surface. The limiting groove (204) is a strip-shaped groove along the length direction of the formwork (200). The first support assembly (300) is used for supporting the bottom surface of the flange (104) of the shell (100).

2. The flat slab girder formwork installation structure according to claim 1, characterized in that: The second support assembly (400) includes at least two groups of parallel strip-shaped support parts (401). The length direction of the support part (401) is consistent with the length direction of the formwork (200).

3. The flat slab girder formwork installation structure according to claim 1, characterized in that: The support part (401) and the bottom surface of the formwork (200) abut to form a support. At least one group of strip-shaped support parts (401) and the limiting part of the formwork (200) form horizontal limiting.

4. The flat slab girder formwork installation structure according to claim 1, characterized in that: The limiting form includes one or more of the following ways: All or part of the support part (401) extends into the limiting groove (204), and the side wall of the limiting groove (204) limits the support part (401) or the top support (403) in the horizontal direction.

5. The flat slab girder formwork installation structure according to claim 1, characterized in that: The limiting protrusion (205) is located on both sides of the support part (401), and the side wall of the limiting protrusion (205) limits the support part (401) or the top support (403) in the horizontal direction. The width of the flange (104) of the shell (100) and the upper surface of the formwork (200) is greater than or equal to 5 cm.

6. A flat slab girder formwork installation structure according to claim 5, wherein: The width of the formwork (200) is greater than or equal to 50 cm. The thickness of the formwork (200) is greater than or equal to 5 cm.

7. The flat slab girder formwork installation structure according to claim 1, characterized in that: The second support assembly (400) includes a scaffold main body (402), a top support (403), and a support part (401). The first support assembly (300) and the second support assembly (400) are connected and fixed by a cross bar. The support part (401) comprises one of a square timber, a square tube and a round tube, and the square timber or the square tube or the round tube is made of multiple parallel rods as one support part (401).

8. The flat slab girder formwork installation structure according to claim 1, characterized in that: It comprises: The forming surface (201) of the template (200) is upwardly convex, higher than the parts on both sides for supporting the formwork (100), and the cross section forms a "convex" shape, the convex height is consistent with the thickness of the flange edge (104) of the formwork (100).

9. The flat slab girder formwork installation structure according to claim 1, characterized in that: It comprises: The formwork (100) comprises a formwork top surface (101), a formwork side surface (102) extending downwardly connected around the formwork top surface (101), the formwork top surface (101) and the formwork side surface (102) enclosed therearound form an internal cavity (103), the lower edge of the formwork side surface (102) continues to extend outwardly horizontally to form a flange edge (104), the outer contour of the flange edge (104) is rectangular, and the vertical end surface of the free end of the outer edge of the flange edge (104) is a lapping surface (105) for mutual abutment between the formworks (100).

10. The flat slab girder formwork installation structure according to claim 1, characterized in that: It is applied to the girder construction at the middle position of the Miller floor system with multi-span column caps. ​

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