A device for controlling the spacing of reinforcing bars and the thickness of a concrete cover in a slip-form construction

Abstract

A kind of sliding formwork steel bar spacing and concrete cover thickness control device, belong to the technical field of water conservancy and hydropower engineering construction, including positioning angle steel, the positioning angle steel is fixedly connected on jack crossbeam, several positioning blocks evenly arranged are connected on the positioning angle steel along its length direction, positioning hole is opened in the positioning block, the hole wall of the positioning hole is recessed to form recess, several ball bearings are arranged in the recess along its circumferential direction.The positioning angle steel and the positioning hole in the utility model are arranged to accurately control the steel bar spacing and the concrete cover thickness, at the same time, the setting of ball bearing also avoids the steel bar that is inserted into positioning hole from being jammed, to ensure that the quality of sliding formwork construction concrete meets the design standard.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy and hydropower engineering construction technology, and relates to the technology of controlling and guiding the spacing of steel bars and controlling the thickness of concrete protective layer in the slipform construction of hydropower stations. In particular, it relates to a device for controlling the spacing of steel bars and the thickness of concrete protective layer in slipform equipment. Background Technology

[0002] In slipform construction of water conservancy and hydropower projects, the proper spacing of vertical reinforcement bars and the precise control of concrete cover thickness are crucial. Uneven spacing of vertical reinforcement bars affects the load-bearing capacity and seismic performance of the concrete structure, and disordered vertical reinforcement bars seriously affect safe and civilized construction on site. Furthermore, if the concrete cover is too thin, it easily leads to reinforcement corrosion, reducing the structure's durability; while if the cover is too thick, the structural surface is prone to cracking, leading to reinforcement corrosion.

[0003] Traditional construction methods struggle to ensure the precision of rebar spacing and protective layer thickness during rapid slipform construction, which becomes a key factor restricting the quality of slipform construction.

[0004] Therefore, in order to solve this problem, this utility model proposes a device for controlling the spacing of reinforcing bars and the thickness of concrete protective layer in slipform equipment. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a device for controlling the spacing of steel bars and the thickness of concrete cover in slipform equipment, so as to solve the technical problems of disordered vertical steel bar spacing and uneven concrete cover thickness in slipform construction.

[0006] To achieve the above and other related objectives, this utility model provides a device for controlling the spacing of reinforcing bars and the thickness of concrete protective layer in a slipform equipment, including a positioning angle steel, which is fixedly connected to a jack beam. Several evenly arranged positioning blocks are connected to the positioning angle steel along its length. Positioning holes are provided on the positioning blocks, and the wall of the positioning holes is recessed inward to form a groove. Several ball bearings are arranged in the groove along its circumference.

[0007] Preferably, in any of the above embodiments, the positioning angle steel is detachably connected to the jack beam, and the positioning block is welded to the positioning angle steel.

[0008] Preferably, in any of the above solutions, the positioning angle steel is parallel or concentric with the outer edge of the structural concrete.

[0009] In any of the above solutions, the preferred option is that the distance between the welded parts of the positioning angle steel and the positioning block and the outer edge of the structural concrete on the same horizontal projection plane is equal to the design protective layer thickness.

[0010] In any of the above embodiments, it is preferred that the distance between the two balls that are symmetrical about the center of the positioning hole is equal to the diameter of the vertical reinforcing bar.

[0011] In any of the above embodiments, it is preferred that a plurality of horizontally distributed reinforcing bars are provided below the positioning angle steel, and each of the horizontally distributed reinforcing bars is tied to the vertical reinforcing bars.

[0012] As described above, the present invention provides a device for controlling the spacing of reinforcing bars and the thickness of concrete cover in a slipform equipment, which has the following beneficial effects:

[0013] 1. In this utility model, the setting of positioning angle steel and positioning holes can accurately control the spacing of steel bars and the thickness of concrete protective layer. At the same time, the setting of ball bearings can also prevent the steel bars entering the positioning holes from getting stuck, ensuring that the quality of concrete in slipform construction meets the design standards.

[0014] 2. This utility model can effectively avoid vertical reinforcement disorder and improve the on-site safety and civilized construction image.

[0015] 3. This utility model has a simple structure, makes the installation of vertical steel bars more convenient, has low cost, and the device can be reused, which improves construction efficiency and has high practical value. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic diagram of this utility model.

[0017] Figure 2 The image shown is a side view of this utility model.

[0018] Figure 3 The diagram shows the connection structure between the positioning angle steel and the positioning block.

[0019] Component designation explanation

[0020] 1-Positioning angle steel; 2-Positioning block; 201-Ball bearing; 202-Groove; 203-Positioning hole; 3-Vertical reinforcing bar; 4-Horizontal distribution bar; 5-Jack beam; 6-Structural concrete. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0022] Please see Figures 1 to 3It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] Please see Figure 1-3 This utility model provides a device for controlling the spacing of reinforcing bars and the thickness of concrete protective layer in a slipform equipment, including a positioning angle steel 1, which is fixedly connected to a jack beam 5. Several evenly arranged positioning blocks 2 are connected to the positioning angle steel 1 along its length. The positioning blocks 2 are provided with positioning holes 203. The hole wall of the positioning hole 203 is recessed inward to form a groove 202. Several balls 201 are arranged in the groove 202 along its circumference.

[0024] In this embodiment, the slipform equipment's rebar spacing and concrete cover thickness control device includes a positioning block 2 with positioning holes 203 that controls the spacing of the vertical rebars 3. The positioning block 2 is fixedly connected to the positioning angle steel 1. One end of the vertical rebar 3 is held by the structural concrete 6, and the other end passes through the positioning hole 203. The two points determine a straight line, thereby precisely controlling and guiding the spacing of the vertical rebars 3 to meet the usage requirements. At the same time, it can also effectively prevent the vertical rebars 3 from becoming disordered, improving the image of safe and civilized construction on site.

[0025] In this embodiment, the spacing between two adjacent positioning blocks 2 is determined based on the spacing between two adjacent vertical reinforcing bars 3 in the on-site construction situation.

[0026] To reduce the friction between the vertical reinforcing bar 3 and the positioning hole 203 during the slipform lifting process, thereby reducing friction loss and preventing jamming between the vertical reinforcing bar 3 and the positioning hole 203 during the slipform lifting process, in this embodiment, a groove 202 is formed along the circumferential direction on the wall of the positioning hole 203, and several balls 201 are arranged along the circumferential direction in the groove 202. This transforms the sliding friction between the vertical reinforcing bar 3 and the wall of the positioning hole 203 into rolling friction, effectively reducing friction while ensuring the normal lifting of the slipform, thus ensuring the normal progress of construction.

[0027] In order to ensure that the vertical reinforcing bar 3 can pass smoothly through the positioning hole 203 and remain stable without shaking during the sliding formwork lifting process, in this embodiment, the distance between the two ball bearings 201 that are symmetrical about the center of the positioning hole 203 is set to be equal to the diameter of the vertical reinforcing bar 3.

[0028] As a further description of the above embodiment, the positioning angle steel 1 is detachably connected to the jack beam 5, and the positioning block 2 is welded to the positioning angle steel 1.

[0029] In this embodiment, the positioning angle steel 1 is detachably connected to the jack beam 5 by connecting screws, which facilitates the installation and removal of the positioning angle steel 1 and thus facilitates the reuse of the device.

[0030] In this embodiment, the use of angle steel for positioning angle steel 1 can increase the contact area between the angle steel and the jack beam 5 and the positioning block 2, ensuring the stability of their connection; on the other hand, the angle steel can be made on the construction site, with low cost, effectively saving construction costs.

[0031] Of course, the positioning angle steel 1 is not limited to angle steel; other materials that can be stably connected to the jack beam 5 and the positioning block 2 and are readily available on site are also acceptable. For example, rectangular steel can be used.

[0032] As a further description of the above embodiment, the positioning angle steel 1 is determined according to the shape of the structural concrete 6. The positioning angle steel 1 is parallel or concentric with the outer edge of the structural concrete 6. The distance between the welded parts of the positioning angle steel 1 and the positioning block 2 and the outer edge of the structural concrete 6 on the same horizontal projection plane is equal to the design protective layer thickness.

[0033] As a further description of the above embodiment, a plurality of horizontally distributed reinforcing bars 4 are provided below the positioning angle steel 1, and each of the horizontally distributed reinforcing bars 4 is tied to the vertical reinforcing bar 3.

[0034] In this embodiment, the horizontal distribution reinforcement 4 is tied to the vertical reinforcement 3 to prevent the vertical reinforcement 3 from deforming during the concrete pouring process, thereby further ensuring that the reinforcement spacing meets the design requirements.

[0035] In summary, the working process of the slipform equipment's rebar spacing and concrete cover thickness control device is as follows:

[0036] Based on the diameter of the vertical reinforcing bar 3, appropriate positioning holes 203 are made on the positioning block 2. The positioning block 2 is welded to the positioning angle steel 1, and the spacing of the positioning blocks 2 is determined according to the design spacing of the vertical reinforcing bars 3.

[0037] The positioning angle steel 1 with positioning block 2 is installed on the jack beam 5 of the slipform equipment. The positioning angle steel 1 is determined according to the shape of the structural concrete 6 and is always parallel or concentric with the outer edge of the structural concrete 6. The distance between the welding part of the positioning block 2 and the positioning angle steel 1 and the outer edge of the structural concrete 6 on the same horizontal projection plane is the design protective layer thickness.

[0038] After completing the above operations, during the slipform lifting process, the vertical reinforcing bars 3 are sequentially passed through the positioning holes 203. The ball bearings 201 roll between the groove 202 and the vertical reinforcing bars 3 to prevent jamming and damage. Below the positioning holes 203, the vertical reinforcing bars 3 are mechanically connected, and the horizontal distribution bars 4 are tied to ensure that the spacing of the reinforcing bars meets the design requirements. The positions of the positioning holes 203 and the positioning angle steel 1 remain fixed, ensuring that the spacing of the vertical reinforcing bars 3 and the thickness of the concrete cover remain constant.

[0039] In summary, the positioning angle steel and positioning holes of this invention can precisely control the spacing of the reinforcing bars and the thickness of the concrete cover. Furthermore, the ball bearings prevent the reinforcing bars from getting stuck when inserted into the positioning holes, ensuring that the quality of the slipform concrete meets design standards. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A device for controlling the spacing of reinforcing bars and the thickness of concrete cover in a slipform equipment, characterized in that: The system includes a positioning angle steel (1), which is fixedly connected to the jack beam (5). Several evenly arranged positioning blocks (2) are connected to the positioning angle steel (1) along its length. The positioning blocks (2) are provided with positioning holes (203). The hole wall of the positioning hole (203) is recessed inward to form a groove (202). Several balls (201) are arranged in the groove (202) along its circumference.

2. The device for controlling the spacing of reinforcing bars and the thickness of the concrete cover in a slipform equipment according to claim 1, characterized in that: The positioning angle steel (1) is detachably connected to the jack beam (5), and the positioning block (2) is welded to the positioning angle steel (1).

3. The device for controlling the spacing of reinforcing bars and the thickness of the concrete cover in a slipform equipment according to claim 1, characterized in that: The positioning angle steel (1) is parallel or concentric with the outer edge of the structural concrete (6).

4. The device for controlling the spacing of reinforcing bars and the thickness of the concrete cover in a slipform equipment according to claim 1, characterized in that: The distance between the welded parts of the positioning angle steel (1) and the positioning block (2) and the outer edge of the structural concrete (6) on the same horizontal projection plane is equal to the design protective layer thickness.

5. The device for controlling the spacing of reinforcing bars and the thickness of concrete cover in slipform equipment according to claim 1, characterized in that: The distance between the two balls (201) that are symmetrical about the center of the positioning hole (203) is equal to the diameter of the vertical reinforcing bar (3).

6. The device for controlling the spacing of reinforcing bars and the thickness of concrete cover in slipform equipment according to claim 1, characterized in that: The positioning angle steel (1) is provided with several parallel horizontal distribution bars (4), and each horizontal distribution bar (4) is tied to the vertical steel bar (3).

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