Cast-in-situ box girder flange plate formwork support frame

Abstract

The utility model discloses a cast -in -place box girder flange plate formwork support frame, including formwork support frame and support subassembly, the formwork support frame is according to cast -in -place box girder flange plate's design arc adjustment, and including positioning rod, upper chord, lower chord and arc rod, the positioning rod top is detachably connected upper chord and lower chord through first connecting component, the detachable connection arc rod between upper chord and lower chord, the formwork support frame bottom is detachably connected support subassembly through second connecting component, the support subassembly is according to cast -in -place box girder height and adjusts height, the utility model discloses support frame can be adjusted according to cast -in -place box girder flange plate's design arc, satisfies the construction demand of different radian and size, has improved the flexibility and adaptability of construction, and through the detachable connection of first connecting component and second connecting component, and the height adjusting function of support subassembly, has guaranteed the stability and security of formwork support frame in the construction process.

Description

Technical fields:

[0001] This utility model relates to the field of formwork support frame technology, specifically to a formwork support frame for the flange plate of a cast-in-place box girder. Background technology:

[0002] Traditional cast-in-place box girder flange formwork supports mostly adopt a fixed design. While this design simplifies the construction process, its lack of flexibility makes it difficult to adapt to flanges with different curvatures and sizes, leading to material waste and increased construction difficulty. Furthermore, fixed supports require more materials to ensure stability during construction, which not only increases construction costs but may also result in some supports being too tightly packed or too sparsely spaced, further exacerbating material waste. Utility model content:

[0003] Therefore, this utility model provides a formwork support frame for the flange plate of a cast-in-place box girder to overcome the problems of the prior art.

[0004] This utility model is implemented by the following technical solution:

[0005] A formwork support frame for a cast-in-place box girder flange includes a formwork support frame and a support assembly. The formwork support frame is adjusted according to the design arc shape of the cast-in-place box girder flange and includes a positioning rod, an upper chord, a lower chord, and an arc-shaped rod. The top of the positioning rod is detachably connected to the upper chord and the lower chord via a first connecting assembly. The arc-shaped rod is detachably connected between the upper chord and the lower chord. The bottom of the formwork support frame is detachably connected to the support assembly via a second connecting assembly. The height of the support assembly is adjusted according to the height of the cast-in-place box girder.

[0006] Preferably, the first connecting assembly includes multiple upright connecting rods and diagonal connecting rods. The upright connecting rods are detachably connected to the positioning rod and the upper chord rod by bolts. Adjacent upright connecting rods are detachably connected to the diagonal connecting rods by bolts. One end of the lower chord rod is detachably connected to the positioning rod by bolts.

[0007] Preferably, the second connecting component includes a U-shaped plate, with a positioning bolt and a nut threaded through the top of the U-shaped plate and a threaded sleeve fixed at the bottom.

[0008] Preferably, the support assembly includes a support rod, a support sleeve, and a support base. The top of the support rod is screwed into the threaded sleeve, the support rod is slidably inserted into the support sleeve, the support sleeve is fixed to the support rod by a locking bolt, and the support base is fixed to the bottom of the support sleeve.

[0009] Preferably, adjacent support sleeves are fixedly connected by a positioning connecting rod.

[0010] The advantages of this utility model are: the support frame can be adjusted according to the design arc of the cast-in-place box girder flange plate to meet the construction requirements of different arcs and sizes, thus improving the flexibility and adaptability of construction. At the same time, the detachable connection of the first and second connecting components, as well as the height adjustment function of the support components, ensures the stability and safety of the formwork support frame during construction, effectively preventing displacement and deformation of the formwork during the pouring process. Furthermore, the adjustable design of the support frame reduces the need for different specifications of supports during construction, simplifies the construction process, shortens the construction cycle, and improves construction efficiency. Attached image description:

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure described in this utility model;

[0013] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the adjustment and usage structure described in this utility model.

[0015] In the diagram: Positioning rod 1, upper chord rod 2, lower chord rod 3, arc rod 4, upright connecting rod 5, diagonal connecting rod 6, U-shaped plate 8, threaded sleeve 9, support rod 10, support sleeve 11, support base 12, positioning connecting rod 13. Detailed implementation method:

[0016] 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.

[0017] like Figure 1 , Figure 2 , Figure 3As shown, a formwork support frame for a cast-in-place box girder flange includes a formwork support frame. The formwork support frame is adjusted according to the design arc shape of the cast-in-place box girder flange. The formwork support frame includes a positioning rod 1, an upper chord 2, a lower chord 3, an arc-shaped rod 4, and a first connecting component. The top of the positioning rod is detachably connected to the upper chord and the lower chord through the connecting component, and the upper chord and the lower chord are detachably connected to the arc-shaped rod. The bottom of the formwork support frame is detachably connected to a support component through a second connecting component. The height of the support component is adjusted according to the height of the cast-in-place box girder.

[0018] The first connecting assembly includes multiple upright connecting rods 5 and diagonal connecting rods 6. The multiple upright connecting rods 5 are detachably connected between the positioning rod 1 and the upper chord rod 2 by bolts. The diagonal connecting rods 6 are detachably connected between adjacent upright connecting rods 5 by bolts. One end of the lower chord rod 3 is detachably connected to the positioning rod 1 by bolts.

[0019] The second connecting component includes a U-shaped plate 8, with a positioning bolt and a nut threaded through the top of the U-shaped plate 8, the nut being threaded onto the positioning bolt, and a threaded sleeve 9 fixed to the bottom of the U-shaped plate.

[0020] The support assembly includes a support rod 10, a support sleeve 11, and a support base 12. The top of the support rod 10 is screwed into the threaded sleeve 9, and the support rod 10 is slidably inserted into the support sleeve 11. A locking bolt is screwed onto the support sleeve 11, and the support base 12 is fixed to the bottom of the support sleeve 11.

[0021] A positioning connecting rod 13 is fixedly connected between adjacent support sleeves 11.

[0022] Actual work process:

[0023] By bolting the upright connecting rod 5 and the diagonal connecting rod 6 of the first connecting assembly, the angles of the upper chord rod 2, the lower chord rod 3 and the positioning rod 1 can be flexibly adjusted so that the arc rod 4 forms an arc structure that meets the design requirements.

[0024] The U-shaped plate 8 of the second connecting component is fixed to the support component by positioning bolts and nuts. After the support rod 10 is screwed to the threaded sleeve 9, it is inserted into the support sleeve 11. The height is adjusted by locking bolts to adapt to different box girder height requirements.

[0025] The diagonal connecting rod 6 and the vertical connecting rod 5 form a triangular structure, which enhances the lateral rigidity of the template support frame.

[0026] Adjacent support sleeves 11 are fixed by positioning connecting rods 13 to form a stable overall system and avoid local deformation.

[0027] All connections use bolts or threads, which facilitates quick assembly and disassembly and transportation, reducing construction costs.

[0028] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. A formwork support frame for the flange plate of a cast-in-place box girder, characterized in that: The system includes a template support frame and a support assembly. The template support frame is adjusted according to the arc shape of the flange plate of the cast-in-place box girder and includes a positioning rod (1), an upper chord (2), a lower chord (3), and an arc rod (4). The top of the positioning rod (1) is detachably connected to the upper chord (2) and the lower chord (3) through a first connecting assembly. The arc rod (4) is detachably connected between the upper chord (2) and the lower chord (3). The bottom of the template support frame is detachably connected to the support assembly through a second connecting assembly. The height of the support assembly is adjusted according to the height of the cast-in-place box girder.

2. The formwork support frame for the flange plate of a cast-in-place box girder according to claim 1, characterized in that: The first connecting assembly includes multiple upright connecting rods (5) and diagonal connecting rods (6). The upright connecting rods (5) are detachably connected to the positioning rod (1) and the upper chord rod (2) by bolts. The diagonal connecting rods (6) are detachably connected between adjacent upright connecting rods (5) by bolts. One end of the lower chord rod (3) is detachably connected to the positioning rod (1) by bolts.

3. The formwork support frame for the flange plate of a cast-in-place box girder according to claim 2, characterized in that: The second connecting component includes a U-shaped plate (8), with a positioning bolt and nut threaded through the top of the U-shaped plate (8) and a threaded sleeve (9) fixed at the bottom.

4. The formwork support frame for the flange plate of a cast-in-place box girder according to claim 3, characterized in that: The support assembly includes a support rod (10), a support sleeve (11), and a support base (12). The top of the support rod (10) is screwed into the threaded sleeve (9), the support rod (10) is slidably inserted into the support sleeve (11), the support sleeve (11) is fixed to the support rod (10) by a locking bolt, and the support base (12) is fixed to the bottom of the support sleeve (11).

5. The formwork support frame for the flange plate of a cast-in-place box girder according to claim 4, characterized in that: Adjacent support sleeves (11) are fixedly connected by a positioning connecting rod (13).

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