Formwork structure for cast-in-place beam construction

Abstract

The template structure for cast-in-situ beam construction comprises an outer template, a support framework for supporting the outer template, the support framework comprises annular assemblies arranged along the inner contour of the outer template, vertical support rods arranged vertically in the annular assemblies, the upper end of the vertical support rods supports the upper inner edge of the annular assemblies, and the lower end of the vertical support rods supports the lower inner edge of the annular assemblies; the annular assemblies are arranged in parallel and at intervals in the front-rear direction, the annular assemblies arranged at intervals are fixed through connecting rods, the connecting rods are at least two, and each connecting rod is arranged at the inner edge on the left or right side of the annular assembly; the left and right connecting rods are connected through a transverse support rod, and the transverse support rod repels the left and right connecting rods from approaching each other.

Description

Technical Field

[0001] This utility model relates to a formwork structure for cast-in-place beam construction. Background Technology

[0002] In existing technologies, most formwork used for cast-in-place beam construction is made of wood. During construction, formwork workers erect the formwork at the casting location, which typically takes about a week to complete. Casting can only proceed after the formwork is erected. Casting cannot be carried out during the erection period, and the formwork must be dismantled after casting. The dismantled formwork is all waste material, thus causing technical problems such as slow construction. Utility Model Content The technical problem to be solved by this utility model is to provide a formwork structure for cast-in-place beam construction, overcoming the shortcomings of the existing technology.

[0003] The technical solution adopted in this utility model is a template structure for cast-in-place beam construction, comprising an outer template and a support frame for supporting the outer template. The support frame includes an annular component arranged along the inner contour of the outer template. The annular component has a vertically arranged vertical support rod inside, the upper end of which supports the upper inner edge of the annular component, and the lower end of which supports the lower inner edge of the annular component. The annular components are arranged in parallel and spaced apart in the front-back direction. The spaced-apart annular components are fixed together by connecting rods, with at least two connecting rods. Each connecting rod is located on the inner edge of the left and right sides of the annular component. The left and right connecting rods are connected by a transverse support rod, which prevents the left and right connecting rods from getting close together.

[0004] The vertical support rod and the horizontal support rod of this utility model are connected by a connector at their intersection.

[0005] The connector of this utility model includes two rotatably connected base plates, and two cover plates are respectively connected to the outer side of the base plates. A vertical support rod and a horizontal support rod are respectively provided between the base plates and the cover plates. Tightening the fasteners connecting the base plates and the cover plates makes the base plates and the cover plates hug the vertical support rod or the horizontal support rod.

[0006] The annular assembly of this utility model includes annular components, two annular components are spaced apart in the front-back direction, and multiple spaced-apart barriers are provided between the two annular components. Bolts pass through the two annular components and the spacers and are threadedly connected to nuts. Tightening the nuts fixes the two annular components.

[0007] The present invention also includes a diagonal brace, one end of which is connected to the inner side edge of the annular assembly, and the other end of which is connected to the upper or lower inner edge of the annular assembly.

[0008] This utility model's outer template includes template components, each comprising a plate that fits tightly against the cast-in-place beam during use and a profile located near the supporting frame. The profile forms a rectangular frame, and the inner surface of the plate is fixedly connected to the rectangular frame. The profile has multiple openings along its length. When adjacent template components are laid flat, the openings of adjacent profiles are aligned. A threaded screw is provided between two annular components, one end of which is connected to a hook extending laterally. The hook is inserted into the aligned openings or one of the openings of the profile. The other end of the screw passes through a washer connected to the annular assembly and is threadedly connected to a nut. Tightening the nut fixes the template component to the annular assembly. The plate is made of metal.

[0009] The gasket described in this invention is located on the inner edge of the annular assembly.

[0010] The vertical support rod or the diagonal brace of this utility model respectively includes two threaded rods and a threaded cylinder disposed between the two threaded rods and threadedly connected to the two threaded rods respectively. Twisting the threaded cylinder makes the two threaded rods move closer or further apart. Alternatively, it includes two threaded cylinders and a threaded rod disposed between the two threaded cylinders and threadedly connected to the two threaded cylinders respectively. Twisting the threaded rod makes the two threaded cylinders move closer or further apart.

[0011] The present invention also includes a connecting seat for connecting the vertical support rod or the diagonal brace. The connecting seat includes a base plate, and two spaced-apart ear plates are provided on the upper part of the base plate. The two ear plates are equipped with mounting posts, and the mounting posts are connected to the threaded rod or the threaded cylinder.

[0012] The mounting post and ear plate of this utility model are rotatably connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the formwork structure for cast-in-place beam construction in this embodiment can be hoisted as a whole, so the formwork can be erected in an area outside the cast-in-place construction site without occupying the location of the cast-in-place construction. When cast-in-place construction is required, the formwork can be hoisted to the construction location without waiting, which greatly improves the construction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0016] Figure 3 This is a structural schematic diagram of the connector described in this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the annular component and the profile of this utility model connected by a screw.

[0018] Figure 5 yes Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 5 As shown, the formwork structure for cast-in-place beam construction in this embodiment includes an outer formwork 1 and a support frame 2 for supporting the outer formwork 1. The support frame 2 includes an annular component 3 arranged along the inner contour of the outer formwork 1. The annular component 3 has vertically arranged vertical support rods 31 inside. The upper end of the vertical support rods 31 supports the upper inner edge of the annular component 3, and the lower end of the vertical support rods 31 supports the lower inner edge of the annular component 3. The annular components 3 are arranged in parallel and spaced apart in the front-back direction. The annular components 3 are fixed together by connecting rods 4. There are at least two connecting rods 4, and each connecting rod 4 is located on the inner edge of the left and right sides of the annular component 3. The left and right connecting rods 4 are connected by a transverse support rod 32, which prevents the left and right connecting rods 4 from getting close. In this embodiment, the annular component 3 is a closed loop. The outer formwork 1 is arranged around the annular component 3 and supported by the annular component 3. The vertical support rods 31 and the transverse support rods 32 inside the annular component 3 support the annular component 3. The annular components 3 are fixedly connected together by connecting rods 4. In this embodiment, the inner edge refers to the inner edge. Taking the annular component 3 as an example, the inner contour of the annular component 3 is the inner edge, the upper part is the upper inner edge, and the lower part is the lower inner edge. Because the annular component 3 is a closed loop, the formwork structure used for cast-in-place beam construction in this embodiment can be hoisted and transported as a whole. In actual construction, the formwork structure for cast-in-place beam construction can be erected on the ground first, and after the overall erection is completed, it can be moved to the cast-in-place beam construction site for on-site casting, thus enabling continuous construction.

[0021] In a preferred embodiment, the vertical support rod 31 and the horizontal support rod 32 are connected at their intersection by a connector 5. The connector 5 includes two rotatably connected base plates 51, with two cover plates 52 connected to the outer sides of each base plate 51. A vertical support rod 31 and a horizontal support rod 32 are respectively positioned between the base plates 51 and the cover plates 52. Tightening the fasteners connecting the base plates 51 and the cover plates 52 causes the base plates 51 and the cover plates 52 to tightly grip the vertical support rod 31 or the horizontal support rod 32. In this embodiment, the vertical support rod 31 and the horizontal support rod 32 are securely joined together by the connector 5, which enhances the load-bearing capacity. They can also be completely separated during disassembly without cutting, allowing for reuse.

[0022] In a preferred embodiment, the annular assembly 3 includes annular members 33, with two annular members 33 spaced apart in the front-to-back direction. Multiple spacer members 34 are spaced apart between the two annular members 33. Bolts 341 pass through the two annular members 33 and the spacer members 34 and are threaded onto nuts. Tightening the nuts fixes the two annular members 33. In this embodiment, the annular assembly 3 is assembled using bolts 341 and nuts, eliminating the need for welding. Therefore, it can be installed in locations without electricity, and disassembly does not require cutting, allowing for reuse. Preferably, the spacer members 34 are small sections of square tubing formed after cutting the square tubing.

[0023] In a preferred embodiment, the device further includes a diagonal brace 35, one end of which is connected to the inner side edge of the annular assembly 3, and the other end of which is connected to the upper or lower inner edge of the annular assembly 3.

[0024] In a preferred embodiment, the outer template 1 includes template components 11, which include a plate 12 that is in close contact with the cast-in-place beam during use and a profile 13 located near the support frame 2. The profile 13 forms a rectangular frame, and the inner surface of the plate 12 is fixedly connected to the rectangular frame. The profile 13 has multiple openings arranged along the length of the profile 13. After adjacent template components 11 are laid flat, the openings of two adjacent profiles 13 are aligned. A threaded screw 36 is provided between two annular components 33. One end of the screw 36 is connected to a hook 37 extending laterally. The hook 37 is inserted into the two aligned openings or one of the openings of the profile 13. The other end of the screw 36 passes through a washer 38 connected to the annular assembly 3 and is threadedly connected to a nut. Tightening the nut fixes the template component 11 to the annular assembly 3.

[0025] In a preferred embodiment, the gasket 38 is located at the inner edge of the annular assembly 3.

[0026] In a preferred embodiment, the vertical support rod 31 or the diagonal brace 35 respectively includes two threaded rods 61 and a threaded cylinder 62 disposed between the two threaded rods 61 and threadedly connected to the two threaded rods 61 respectively. Twisting the threaded cylinder 62 causes the two threaded rods 61 to move closer or further apart. In this embodiment, the threaded cylinder 62 has two threads with opposite helical directions, so twisting the threaded cylinder 62 can cause the two threaded rods 61 to move closer or further apart. In another embodiment, the vertical support rod 31 or the diagonal brace 35 respectively includes two threaded cylinders 62 and a threaded rod 61 disposed between the two threaded cylinders 62 and threadedly connected to the two threaded cylinders 62 respectively. Twisting the threaded rod 61 causes the two threaded cylinders 62 to move closer or further apart. In this embodiment, the helical directions of the threads at both ends of the threaded rod 61 are opposite, so twisting the threaded rod 61 can cause the two threaded cylinders 62 to move closer or further apart.

[0027] In a preferred embodiment, a connecting seat 7 for connecting the vertical support rod 31 or the diagonal brace 35 is also included. The connecting seat 7 includes a base plate 71, and two spaced ear plates 72 are provided above the base plate 71. Mounting posts 73 are installed on the two ear plates 72, and the mounting posts 73 are connected to the threaded rod 61 or the threaded cylinder 62.

[0028] In a preferred embodiment, the mounting post 73 is rotatably connected to the ear plate 72. In another preferred embodiment, the mounting post 73 has a hollow structure, with a pin passing through both the mounting post 73 and the ear plate 72, thereby allowing the mounting post 73 to be rotatably mounted. In yet another preferred embodiment, the mounting post 73 is fixedly connected to the threaded rod 61 or the threaded cylinder 62.

Claims

1. A formwork structure for cast-in-place beam construction, comprising an outer formwork (1) and a support frame (2) for supporting the outer formwork (1), characterized in that, The supporting frame (2) includes an annular component (3) arranged along the inner contour of the outer template (1). The annular component (3) is provided with a vertically arranged vertical support rod (31). The upper end of the vertical support rod (31) supports the upper inner edge of the annular component (3), and the lower end of the vertical support rod (31) supports the lower inner edge of the annular component (3). The annular components (3) are arranged in parallel and spaced apart in the front-back direction. The annular components (3) are fixed together by connecting rods (4). There are at least two connecting rods (4). Each connecting rod (4) is located on the inner edge of the left and right sides of the annular component (3). The left and right connecting rods (4) are connected by a transverse support rod (32). The transverse support rod (32) prevents the left and right connecting rods (4) from getting close.

2. The formwork structure for cast-in-place beam construction as described in claim 1, characterized in that, The vertical support rod (31) and the horizontal support rod (32) are connected at their intersection by a connector (5).

3. The formwork structure for cast-in-place beam construction as described in claim 2, characterized in that, The connector (5) includes two rotatably connected base plates (51), and two cover plates (52) are respectively connected to the outer side of the base plates (51). A vertical support rod (31) and a horizontal support rod (32) are respectively provided between the base plates (51) and the cover plates (52). Tightening the fasteners connecting the base plates (51) and the cover plates (52) makes the base plates (51) and the cover plates (52) hug the vertical support rod (31) or the horizontal support rod (32).

4. The formwork structure for cast-in-place beam construction as described in claim 1, characterized in that, The ring assembly (3) includes a ring part (33), two ring parts (33) are spaced apart in the front-back direction, and a plurality of spaced-apart barriers (34) are provided between the two ring parts (33). A bolt (341) passes through the two ring parts (33) and the barrier (34) and is threadedly connected to a nut. Tightening the nut fixes the two ring parts (33).

5. The formwork structure for cast-in-place beam construction as described in claim 1, characterized in that, It also includes a diagonal brace (35), one end of which is connected to the inner side edge of the annular assembly (3), and the other end of which is connected to the upper or lower inner edge of the annular assembly (3).

6. The formwork structure for cast-in-place beam construction as described in claim 1, characterized in that, The outer formwork (1) includes formwork components (11), which include a plate (12) that is in close contact with the cast-in-place beam during use and a profile (13) located near the supporting frame (2). The profile (13) forms a rectangular frame, and the inner surface of the plate (12) is fixedly connected to the rectangular frame. The profile (13) has multiple openings along the length of the profile (13). When adjacent formwork components (11) are laid flat, the openings of two adjacent profiles (13) are aligned. A threaded screw (36) is provided between the two annular parts (33). One end of the screw (36) is connected to a hook (37) extending to the side. The hook (37) is inserted into the two aligned openings or the opening of one of the profiles (13). The other end of the screw (36) passes through the washer (38) connected to the annular assembly (3) and is threaded to a nut. Tightening the nut fixes the template part (11) to the annular assembly (3). The plate (12) is made of metal.

7. The formwork structure for cast-in-place beam construction as described in claim 6, characterized in that, The gasket (38) is located on the inner edge of the annular assembly (3).

8. The formwork structure for cast-in-place beam construction as described in claim 5, characterized in that, The vertical support rod (31) or the diagonal brace (35) respectively includes two threaded rods (61) and a threaded cylinder (62) respectively threaded between the two threaded rods (61) and threadedly connected to the two threaded rods (61). Twisting the threaded cylinder (62) makes the two threaded rods (61) move closer or further apart. Alternatively, it includes two threaded cylinders (62) and a threaded rod (61) respectively threaded between the two threaded cylinders (62) and threadedly connected to the two threaded cylinders (62). Twisting the threaded rod (61) makes the two threaded cylinders (62) move closer or further apart.

9. The formwork structure for cast-in-place beam construction as described in claim 8, characterized in that, It also includes a connecting seat (7) for connecting the vertical support rod (31) or the diagonal brace (35). The connecting seat (7) includes a base plate (71). Two ear plates (72) are provided on the upper part of the base plate (71) at intervals. Mounting posts (73) are installed on the two ear plates (72). The mounting posts (73) are connected to the threaded rod (61) or the threaded cylinder (62).

10. The formwork structure for cast-in-place beam construction as described in claim 9, characterized in that, The mounting post (73) is rotatably connected to the ear plate (72).

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