Cast-in-situ box girder high-precision arc stamping die plate

Abstract

The utility model provides a cast -in -situ box girder high accuracy arc stamping die plate belongs to the field of pouring form, including form assembly and support component, the utility model: form assembly includes upper arc form, straight form and lower arc form, the bending radius of upper arc form is 60cm, the bending radius of lower arc form is 20cm, the support surface after splicing is compatible with the outer plate surface of cast -in -situ box girder arc flange plate, and the high accuracy of stamping die plate processing ensures that the position and shape after installation meet the design requirement, greatly reduces the rework and adjustment work caused by form error, compared with the installation of traditional box girder arc form greatly shortens the installation period of box girder form, and after concrete pouring, the phenomena such as expansion die and slurry leakage appear in few positions, thereby greatly reducing the artificial mechanical cost of concrete fault polishing, concrete honeycomb pitting repair in the later period.

Description

Technical Field

[0001] This utility model relates to the field of casting templates, specifically a high-precision arc-shaped stamping template for cast-in-place box girders. Background Technology

[0002] With the development of my country's transportation industry, bridge construction engineering, as an important part of the transportation engineering field, can be applied to various complex terrains and geomorphological conditions. Cast-in-place box girders, as an important component of bridge structures, are well-suited for complex superstructure design conditions such as changes in bridge curvature, increases or decreases in bridge deck width, and increases in bridge span. They are widely used in bridge construction engineering. In bridge construction, the flatness and curvature accuracy requirements of box girders are high, and on-site construction is quite difficult. Traditional formwork fabrication methods often require on-site manual processing or splicing when dealing with curved parts. This is not only inefficient but also makes it difficult to guarantee the accuracy of the curvature. If traditional methods are used, each curved part requires a lot of time and manpower for adjustment, which will seriously affect the construction progress and thus fail to meet the requirements of accuracy, efficiency, and material conservation in the construction of cast-in-place box girders for this bridge project. Utility Model Content

[0003] The purpose of this utility model is to provide a high-precision arc-shaped stamping template for cast-in-place box girders to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-precision arc-shaped stamping template for cast-in-place box girders, comprising a template assembly and a support assembly;

[0005] The template assembly includes an upper arc-shaped template, a straight template, and a lower arc-shaped template. The upper and lower arc-shaped templates are respectively connected to both ends of the straight template. The bending radius of the upper arc-shaped template is 60cm, and the bending radius of the lower arc-shaped template is 20cm. The upper and lower arc-shaped templates are respectively installed in opposite directions at both ends of the straight template. The support surface formed by the splicing of the upper arc-shaped template, the straight template, and the lower arc-shaped template is adapted to the outer plate surface of the arc-shaped flange of the cast-in-place box girder.

[0006] The support assembly includes a tray at the bottom of the template assembly. Several horizontal support rods parallel to the installation direction of the template assembly are installed on the surface of the tray. Vertical support rods are installed on the back of the tray. A combined bracket is installed on one side of the vertical support rod. A lifting rod is connected to the top of the combined bracket. The top of the lifting rod is connected to the top of the vertical support rod.

[0007] As a preferred embodiment of this utility model: the combined support includes a base, and a plurality of pillars are arranged and installed on the surface of the base. I-beams are connected to one side of the base and the top side of the pillars, and one end of each of the two I-beams is fixedly connected to a vertical support rod.

[0008] As a preferred embodiment of this utility model, a reinforcing column is also provided between the two I-beams and the vertical support rod.

[0009] As a preferred embodiment of the present invention: the lifting rod comprises a fixed column and a lifting sleeve, the top of the fixed column is equipped with a screw, and the lifting sleeve is provided with a threaded sleeve inside, the threaded sleeve being threadedly connected to the surface of the screw.

[0010] As a preferred embodiment of this utility model: a fixing plate is installed at the bottom of the fixing column and at one end of the lifting sleeve, and fixing bolts are connected around the fixing plate.

[0011] As a preferred embodiment of this utility model, the upper arc-shaped template, the straight template, and the lower arc-shaped template are made of Q345B high-strength alloy steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The template components include an upper arc template, a straight template and a lower arc template. The upper arc template and the lower arc template are made by stamping. When the template is installed, it is spliced ​​at both ends of the straight template. The bending radius of the upper arc template is 60cm and the bending radius of the lower arc template is 20cm. The spliced ​​support surface is compatible with the outer plate surface of the arc flange of the cast-in-place box girder. The high precision of the stamping template processing ensures that its position and shape after installation meet the design requirements, which greatly reduces the rework and adjustment work caused by template error. Compared with the traditional box girder arc template installation, it greatly shortens the installation cycle of the box girder template. At the same time, after the concrete is poured, there are very few places where the formwork bulge and grout leakage occur, which greatly reduces the labor and mechanical costs invested in the later stage of concrete misalignment grinding and concrete honeycomb surface repair.

[0014] (2) A support plate is provided at the bottom of the template assembly. A horizontal support rod is installed on the surface of the support plate. The template assembly is fixed to the surface of the support plate by the horizontal support rod. A vertical support rod is installed on the back of the support plate to support the support plate. The vertical support rod is installed and fixed by a combination bracket on one side. The combination bracket is connected to the top of the vertical support rod by the lifting rod at the top, so that the combination bracket and the vertical support rod can play a role in installing and supporting the support plate, avoiding the phenomenon of grout leakage caused by deformation of the support plate during the pouring process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the template component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the support component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting rod structure of this utility model.

[0019] In the diagram: 1. Template assembly; 101. Upper arc-shaped template; 102. Straight template; 103. Lower arc-shaped template; 2. Support assembly; 21. Support plate; 22. Horizontal support rod; 23. Vertical support rod; 24. Combined bracket; 241. Base; 242. Column; 243. I-beam; 244. Reinforcing column; 25. Lifting rod; 251. Fixed column; 252. Lifting sleeve; 253. Screw; 254. Threaded sleeve; 3. Fixing plate; 4. Fixing bolt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1-4 A high-precision arc-shaped stamping template for cast-in-place box girders includes: template assembly 1 and support assembly 2;

[0022] Please see Figure 1 , Figure 2 The template component 1 includes an upper arc-shaped template 101, a straight template 102, and a lower arc-shaped template 103. The upper arc-shaped template 101 and the lower arc-shaped template 103 are respectively connected to the two ends of the straight template 102. The bending radius of the upper arc-shaped template 101 is 60cm, and the bending radius of the lower arc-shaped template 103 is 20cm. The upper arc-shaped template 101 and the lower arc-shaped template 103 are respectively installed in opposite directions at the two ends of the straight template 102. The support surface formed by the splicing of the upper arc-shaped template 101, the straight template 102, and the lower arc-shaped template 103 is adapted to the outer plate surface of the arc-shaped flange of the cast-in-place box girder.

[0023] In practical use: Template component 1 includes an upper arc-shaped template 101, a straight template 102, and a lower arc-shaped template 103. The upper arc-shaped template 101 and the lower arc-shaped template 103 are made by stamping. During template installation, the upper arc-shaped template 101 and the lower arc-shaped template 103 are spliced ​​at both ends of the straight template 102. The bending radius of the upper arc-shaped template 101 is 60cm, and the bending radius of the lower arc-shaped template 103 is 20cm. The spliced ​​support surface is compatible with the outer plate surface of the arc-shaped flange of the cast-in-place box girder. The high precision of the stamping template processing ensures that its position and shape after installation meet the design requirements, greatly reducing the rework and adjustment work caused by template errors. Compared with the traditional box girder arc template installation, it greatly shortens the installation cycle of the box girder template. At the same time, after the concrete is poured, there are very few instances of formwork bulging and grout leakage, which greatly reduces the labor and mechanical costs invested in the later stages of concrete misalignment grinding and concrete honeycomb surface repair.

[0024] Please see Figure 1 , Figure 3 The support component 2 includes a tray 21 disposed at the bottom of the template component 1. Several horizontal support rods 22 parallel to the installation direction of the template component 1 are installed on the surface of the tray 21. A vertical support rod 23 is installed on the back of the tray 21. A combined bracket 24 is installed on one side of the vertical support rod 23. A lifting rod 25 is connected to the top of the combined bracket 24. The top of the lifting rod 25 is connected to the top of the vertical support rod 23.

[0025] In practical use: A support plate 21 is provided at the bottom of the template assembly 1. A horizontal support rod 22 is installed on the surface of the support plate 21. The template assembly 1 is fixed to the surface of the support plate 21 by the horizontal support rod 22. A vertical support rod 23 is installed on the back of the support plate 21 to support the support plate 21. The vertical support rod 23 is installed and fixed by a combination bracket 24 on one side. The combination bracket 24 is connected to the top of the vertical support rod 23 by a lifting rod 25 at the top. Thus, the combination bracket 24 and the vertical support rod 23 provide installation support for the support plate 21, avoiding deformation of the support plate 21 during the pouring process, which could lead to grout leakage.

[0026] Please see Figure 1 , Figure 3 The combined support 24 includes a base 241, on which several pillars 242 are arranged and installed. I-beams 243 are connected to one side of the base 241 and the top side of the pillars 242. One end of each of the two I-beams 243 is fixedly connected to a vertical support rod 23. A reinforcing column 244 is also provided between the two I-beams 243 and the vertical support rod 23.

[0027] In practical use: The combined support 24 includes a base 241, and several columns 242 are arranged and installed on the surface of the base 241. I-beams 243 are connected to one side of the base 241 and the top side of the columns 242. One end of the I-beams 243 is connected to the vertical support rod 23. A reinforcing column 244 is provided between the I-beams 243 and the vertical support rod 23. The reinforcing column 244 is designed with diagonal bracing between the columns 242 and the vertical support rod 23 to enhance the structural strength of the combined support 24 and meet the load transmitted by the support plate 21 during pouring.

[0028] Please see Figure 3 , Figure 4 The lifting rod 25 consists of a fixed column 251 and a lifting sleeve 252. A screw 253 is installed at the top of the fixed column 251. A threaded sleeve 254 is provided inside the lifting sleeve 252. The threaded sleeve 254 is threadedly connected to the surface of the screw 253. A fixing plate 3 is installed at the bottom of the fixed column 251 and at one end of the lifting sleeve 252. Fixing bolts 4 are connected around the fixing plate 3.

[0029] In practical use: A screw 253 is installed at the top of the fixed column 251. A threaded sleeve 254 is provided inside the lifting sleeve 252. The threaded sleeve 254 inside the lifting sleeve 252 is threadedly connected to the surface of the screw 253. By rotating the lifting sleeve 252, the height can be adjusted along the screw 253, thereby satisfying the height adjustment of the lifting rod 25. A fixing plate 3 is installed at one end of the fixed column 251 and the lifting sleeve 252. The fixing bolts 4 around the fixing plate 3 fix the fixed column 251 and the lifting sleeve 252 between the support column 242 and the vertical support rod 23.

[0030] Please see Figure 2 The upper arc-shaped template 101, the straight template 102, and the lower arc-shaped template 103 are made of Q345B high-strength alloy steel.

[0031] In practical use: the upper arc-shaped template 101, the straight template 102 and the lower arc-shaped template 103 are all made of Q345B high-strength alloy steel. Combined with advanced stamping technology, the mechanical properties of the material are fully utilized. Under the influence of harsh environments such as temperature and humidity, the material properties, corrosion resistance and deformation resistance of the template can ensure its normal use. At the same time, its high durability and wear resistance can support its repeated use.

[0032] The template component 1 includes an upper arc-shaped template 101, a straight template 102, and a lower arc-shaped template 103. The upper arc-shaped template 101 and the lower arc-shaped template 103 are made by stamping. During template installation, the upper arc-shaped template 101 and the lower arc-shaped template 103 are spliced ​​at both ends of the straight template 102. The bending radius of the upper arc-shaped template 101 is 60cm, and the bending radius of the lower arc-shaped template 103 is 20cm. The spliced ​​support surface is compatible with the outer plate surface of the arc-shaped flange of the cast-in-place box girder. The high precision of the stamping template processing ensures that its position and shape after installation meet the design requirements, greatly reducing rework and adjustment work caused by template errors. Compared with the traditional box girder arc-shaped template installation, it greatly shortens the installation cycle of the box girder template. At the same time, after concrete pouring, there are very few instances of formwork bulging and grout leakage, which greatly reduces the labor and mechanical costs invested in the later stages of concrete misalignment grinding and concrete honeycomb surface repair.

[0033] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 high-precision arc-shaped stamping template for cast-in-place box girders, characterized in that, include: Template component (1), the template component (1) includes an upper arc template (101), a straight template (102) and a lower arc template (103), the upper arc template (101) and the lower arc template (103) are respectively connected to the two ends of the straight template (102), the bending radius of the upper arc template (101) is 60cm, the bending radius of the lower arc template (103) is 20cm, the upper arc template (101) and the lower arc template (103) are respectively installed in opposite directions at the two ends of the straight template (102), the support surface formed by the splicing of the upper arc template (101), the straight template (102) and the lower arc template (103) is adapted to the outer plate surface of the arc flange plate of the cast-in-place box girder; The support assembly (2) includes a tray (21) disposed at the bottom of the template assembly (1). Several horizontal support rods (22) parallel to the installation direction of the template assembly (1) are installed on the surface of the tray (21). A vertical support rod (23) is installed on the back of the tray (21). A combined bracket (24) is installed on one side of the vertical support rod (23). A lifting rod (25) is connected to the top of the combined bracket (24). The top of the lifting rod (25) is connected to the top of the vertical support rod (23).

2. The high-precision arc-shaped stamping template for cast-in-place box girders according to claim 1, characterized in that: The combined support (24) includes a base (241), and several pillars (242) are arranged on the surface of the base (241). I-beams (243) are connected to one side of the base (241) and the top side of the pillars (242). One end of each of the two I-beams (243) is fixedly connected to a vertical support rod (23).

3. The high-precision arc-shaped stamping template for cast-in-place box girders according to claim 2, characterized in that: A reinforcing column (244) is also provided between the two I-beams (243) and the vertical support rod (23).

4. The high-precision arc-shaped stamping template for cast-in-place box girders according to claim 1, characterized in that: The lifting rod (25) consists of a fixed column (251) and a lifting sleeve (252). A screw (253) is installed at the top of the fixed column (251). A threaded sleeve (254) is provided inside the lifting sleeve (252). The threaded sleeve (254) is threadedly connected to the surface of the screw (253).

5. A high-precision arc-shaped stamping template for cast-in-place box girders according to claim 4, characterized in that: The bottom of the fixed column (251) and one end of the lifting sleeve (252) are both equipped with a fixing plate (3), and the fixing plate (3) is connected with fixing bolts (4) around its perimeter.

6. The high-precision arc-shaped stamping template for cast-in-place box girders according to claim 1, characterized in that: The upper arc-shaped template (101), the straight template (102), and the lower arc-shaped template (103) are made of Q345B high-strength alloy steel.

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