Adjustable inner support for reinforcement cage machining and construction method

Abstract

The invention belongs to the technical field of building construction, and particularly relates to an adjustable inner support for reinforcement cage machining and a construction method.The device comprises a fixing disc, supporting rods and reinforcement clamps, the fixing disc is a center foundation connecting component, the supporting rods are arranged on the fixing disc in a circular array mode, and the reinforcement clamps are arranged at the ends, away from the fixing disc, of the supporting rods; the reinforcing steel bar clamp is a group of symmetrically arranged arc-shaped elastic iron sheets and is used for clamping a main reinforcement of the reinforcing steel bar cage; the method mainly comprises the steps of device arrangement, main reinforcement fixing and stirrup binding. Compared with the prior art, the reinforcement cage diameter shrinkage phenomenon can be improved from the source, the stirrup machining winding deformation phenomenon caused by reduction of reinforcement cage bottom reinforcing bars is avoided, the adjustability and applicability of follow-up reinforcement cage construction are guaranteed, and the parameter change control capacity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an adjustable inner support and a construction method for processing a steel cage. Background Art

[0002] In many fields involving the production of steel cages in concrete structures, such as construction projects and bridge projects, the steel cage is a key component that bears the force of the structure and enhances the integrity of the concrete. The quality of its binding is crucial. Traditional steel cage binding work mainly relies on manual operation. Construction workers rely on experience and simple tools such as wire ties and small crowbars to assemble and bind the steel bars on site according to the designed main reinforcement and stirrup specifications and spacing requirements. In the initial stage of binding, the main reinforcement is mostly long cylindrical steel, without special fixed support, and is simply placed on the ground or operating table. Affected by factors such as site flatness and operation collision, it is very easy to be skewed. In the subsequent process of binding stirrups, construction workers need to repeatedly correct the position of the main reinforcement, which is not only time-consuming, but also difficult to ensure that each main reinforcement always maintains the designed verticality and spacing accuracy throughout the entire binding process. Stirrups are generally closed ring steel bars arranged around the main reinforcement. The traditional method is to manually bend and connect the ends of the stirrups before binding and fixing. However, due to the lack of effective shaping molds or auxiliary fixing structures, it is difficult for stirrups to maintain the standard circular shape or the geometric shape specified by the design during the binding process, and local depression and convex deformation are prone to occur. Especially when tying spiral stirrups, twisting deformation is more frequent, making it impossible for the stirrups to fit tightly with the main bars. After the concrete is poured, the gripping force of the steel cage is greatly reduced, reducing the durability and mechanical properties of the structure. For example, in the construction of steel cages for large bridge piers, this non-standard stirrup binding is prone to cause local stress concentration, threatening the long-term safety of the structure.

[0003] In view of the shortcomings of the existing technology, it is necessary to develop a device that can position the steel bars during the process of tying the steel cage, so as to improve the convenience and accuracy of the steel cage tying operation. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention develops an adjustable inner support and construction method for steel cage processing, which can improve the steel cage diameter shrinkage phenomenon from the source, avoid the stirrup processing winding deformation phenomenon caused by the reduction of reinforcement at the bottom of the steel cage, ensure the adjustability and applicability of subsequent steel cage construction, and improve the control ability of parameter changes.

[0005] The technical solution to the technical problem solved by the present invention is: an adjustable internal support for steel cage processing, including a fixed plate, a support rod and a steel bar clamp, the fixed plate is a central basic connecting component, the circular array of support rods is arranged on the fixed plate, the steel bar clamp is arranged at one end of the support rod away from the fixed plate, and the steel bar clamp is a group of symmetrically arranged arc-shaped elastic iron sheets, which are used to clamp the main bars of the steel cage.

[0006] Preferably, a scale rod is slidably connected inside the support rod, the steel bar clamp is connected to the scale rod, and a fixing knob capable of temporarily fixing the scale rod is provided on the support rod.

[0007] Preferably, the support rods are reinforced by internal support hoops.

[0008] Preferably, the inner support hoop array is provided.

[0009] Preferably, one end of the support rod close to the steel bar clamp is rotatably connected to a plate strip, a locking piece is slidably connected to the support rod, an array of slot holes for temporarily fixing the locking piece are arranged on the support rod, a supporting thin rod is arranged between the plate strip and the locking piece, one end of the supporting thin rod is rotatably connected to the plate strip, and the other end is rotatably connected to the locking piece.

[0010] Preferably, the plate strips are symmetrically arranged in the direction in which the steel bar clamp passes through, with the support rod as the center.

[0011] A construction method for processing a steel cage, using an adjustable inner support for processing a steel cage to tie the steel cage, comprises the following steps: Step 1: According to the size of the steel cage, adjust the support rod to the corresponding scale, tighten the position of the support rod with the fixing knob, and arrange adjustable inner supports for steel cage processing at intervals in the steel cage processing area; Step 2: Place the main reinforcement in the reinforcement clamp and fix the main reinforcement with the reinforcement clamp to prevent it from tilting and displacement; Step 3: Welding of inner stirrups and main reinforcement; Step 4: After the inner stirrups are welded, the outer stirrups of the steel cage are constructed; Step 5: Complete the construction of external stirrups and form the steel cage; Step 6: To recycle the device, first retract the thin support rod to make the "T" support fall down, then loosen the steel bar clamp and the fixing knob to return the device to its original state for reuse.

[0012] Preferably, in step 4, before the construction of the outer stirrups, the plate strip connected and fixed by the supporting thin rods at the front end of the support rods is opened to form a "T"-shaped support, thereby increasing the outer cross-sectional area of ​​the main reinforcement part, providing more support points for the outer stirrups, and reducing the necking deformation during the processing of the outer stirrups.

[0013] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects: The following are the detailed benefits of this adjustable inner support solution for steel cage processing: 1. The steel bar clamp of the present invention adopts a set of symmetrically arranged arc-shaped elastic iron sheets, which can closely fit the cylindrical surface of the main reinforcement of the steel cage. In the process of steel cage processing, it effectively solves the problem of the main reinforcement being easily skewed and displaced, and avoids the hidden danger of uneven force on the steel cage and affecting the bearing performance due to the deviation of the main reinforcement position; 2. The scale rod is connected by sliding inside the support rod, and the fixed knob set on the support rod can conveniently adjust the radial position of the steel bar clamp from the fixed plate to meet the diversified construction needs and broaden the application scenarios; 3. The internal support hoops are arranged in an array to reinforce the support rods, which significantly enhances the structural rigidity of the entire adjustable internal support. During the steel bar binding process, it can maintain a stable shape, prevent the support rods from deforming and shifting, and reduce the quality problems of the steel cage caused by the instability of the device's own structure; 4. The support rod is rotated near one end of the steel bar clamp to connect the plate belt, and the plate belt is symmetrically arranged in the direction of the steel bar clamp with the support rod as the center, and is matched with the sliding connection locking parts and supporting thin rods to form a multi-directional support system to limit the radial deformation of the stirrups and avoid the phenomenon of diameter shrinkage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is a structural diagram of the support rod of the present invention.

[0015] Among them: 1. fixed plate; 2. support rod; 21. scale rod; 22. fixed knob; 3. steel bar clamp; 4. plate strip; 41. supporting thin rod; 42. locking piece; 43. slot hole; 5. inner support hoop. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Example 1 See also Figures 1 to 3 An adjustable inner support for steel cage processing includes a fixed plate 1, a support rod 2 and a steel bar clamp 3, wherein the fixed plate 1 is a central basic connecting member, the support rod 2 is arranged in a circular array on the fixed plate 1, and the steel bar clamp 3 is arranged at one end of the support rod 2 away from the fixed plate 1. The steel bar clamp 3 is a group of symmetrically arranged arc-shaped elastic iron sheets, which are used to clamp the main bars of the steel cage.

[0018] like Figure 3 As shown, a scale rod 21 is slidably connected inside the support rod 2, the steel bar clamp 3 is connected to the scale rod 21, and a fixing knob 22 capable of temporarily fixing the scale rod 21 is provided on the support rod 2.

[0019] like Figure 1 As shown, the struts 2 are reinforced by inner support hoops 5 .

[0020] like Figure 1 As shown, the inner support hoops 5 are arranged in an array.

[0021] like Figure 2 As shown, one end of the support rod 2 close to the steel bar clamp 3 is rotatably connected to the plate band 4, a locking piece 42 is slidably connected to the support rod 2, and an array of slots 43 for temporarily fixing the locking piece 42 are arranged on the support rod 2. A supporting thin rod 41 is arranged between the plate band 4 and the locking piece 42, and one end of the supporting thin rod 41 is rotatably connected to the plate band 4, and the other end is rotatably connected to the locking piece 42.

[0022] like Figure 2 As shown, the plate strips 4 are symmetrically arranged in the direction in which the steel bar clamps 3 pass through, with the support rod 2 as the center.

[0023] A construction method for processing a steel cage, using an adjustable inner support for processing a steel cage to tie the steel cage, comprises the following steps: Step 1: According to the size of the steel cage, adjust the support rod 2 to the corresponding scale, use the fixing knob 22 to tighten the position of the support rod 2, and arrange adjustable inner supports for steel cage processing at intervals in the steel cage processing area; Step 2: Place the main reinforcement bar in the reinforcement clamp 3, and fix the main reinforcement bar position by the reinforcement clamp 3 to prevent it from being skewed and displaced; Step 3: Welding of inner stirrups and main reinforcement; Step 4: After the inner stirrups are welded, the outer stirrups of the steel cage are constructed. Before the outer stirrups are constructed, the plate strip 4 connected and fixed by the thin support rod 41 at the front end of the support rod 2 is opened to form a "T" support, thereby increasing the outer cross-sectional area of ​​the main reinforcement part, providing more support points for the outer stirrups, and reducing the necking deformation during the processing of the outer stirrups; Step 5: Complete the construction of external stirrups and form the steel cage; Step 6: Recover the device by first retracting the thin support rod 41 to make the "T"-shaped support fall down, and then loosen the steel bar clamp 3 and the fixing knob 22 to return the device to its initial state for reuse.

[0024] Principle and operation process The steel bar clamp 3 of the present invention adopts a group of symmetrically arranged arc-shaped elastic iron sheets, which can closely fit the cylindrical surface of the main reinforcement of the steel cage. In the process of steel cage processing, the problem of the main reinforcement being easily skewed and displaced is effectively solved, ensuring that each main reinforcement always maintains an accurate position during the binding and assembly process, ensuring the structural regularity of the entire steel cage, laying a solid foundation for subsequent construction procedures, and avoiding the hidden dangers of uneven force on the steel cage and affecting the bearing performance due to the deviation of the main reinforcement position; the elastic iron sheet material provides sufficient clamping force to ensure the stability of the main reinforcement, and can adapt to main reinforcements of different diameters within a certain range, enhancing the versatility of the device, and there is no need to frequently replace the clamps for steel cages of various specifications, reducing construction costs and preparation time.

[0025] The scale rod 21 is slidably connected inside the support rod 2, and the radial position of the steel bar clamp 3 from the fixed plate 1 can be conveniently adjusted in conjunction with the fixed knob 22 set on the support rod 2. Construction personnel can accurately adjust the extension length of the support rod 2 according to the radius size of the steel cage design of different specifications, meet diversified construction needs, and broaden the application scenarios of the device; the scale mark facilitates quantitative operation, and workers can intuitively and accurately control the adjustment scale, reduce human estimation errors, improve the processing accuracy and quality consistency of the steel cage, and ensure the stability of the structural performance of the same batch of projects.

[0026] The two struts are reinforced with internal support hoops arranged in an array, which significantly enhances the structural rigidity of the entire adjustable internal support. During the construction process of assembling and transporting the steel cage, even if it is collided or squeezed by external forces, it can still maintain a stable shape, prevent the struts 2 from deforming and shifting, ensure that the steel clamps 3 are reliably positioned on the main bars, ensure the smooth processing process, and reduce the quality problems of the steel cage caused by the instability of the device's own structure; the internal support hoops are evenly distributed and reasonably disperse the force, so that each strut 2 can cooperate to bear the working stress, extend the service life of the device, and can still guarantee good performance after multiple turnovers, which is in line with the concept of reducing costs and increasing efficiency in engineering construction.

[0027] The support rod 2 is rotated to connect the plate belt 4 near one end of the steel bar clamp 3, and the plate belt 4 is symmetrically arranged in the direction of the steel bar clamp 3 with the support rod 2 as the center. With the sliding connection locking piece 42 and the supporting thin rod 41, the symmetrically arranged plate belt 4 can form a "T"-shaped support, providing a fulcrum for the binding of the outer stirrups, forming a multi-directional support system; the plate belt 4 can fit the inner surface of the steel cage, provide additional support from the side, and limit the radial deformation of the steel cage; the supporting thin rod 41 is adjusted and fixed in the slot 43 with the locking piece 42, and the support angle and strength are flexibly adjusted to provide support for the plate belt 4. This structure can effectively cope with the complex internal stress conditions during the processing of the steel cage, especially when binding multi-layer and special-shaped cross-section steel cages, suppress local bulging and deformation, ensure the molding quality and geometric accuracy of the steel cage, improve the coordinated stress performance of the steel cage and concrete after concrete pouring, and enhance the durability and safety of the engineering structure.

[0028] During the processing of the steel cage, first adjust the support rod 2 to the appropriate diameter scale according to the design requirements of the steel cage diameter, tighten it with the fixing knob 22, and evenly arrange the invention according to the spacing required by the drawing; during processing, first fix the main steel bar with the steel clamp 3, and then weld the inner stirrups to the main bars (the inner support hoops and the invention are arranged alternately). After the welding of the inner stirrups is completed, the outer stirrups of the steel cage are constructed. During the construction of the outer stirrups, the plate strip 4 connected and fixed by the supporting thin rod 41 at the front end of the support rod 2 of the present invention is opened to form a "T" support to increase the outer cross-sectional area of ​​the main reinforcement part, which helps to reduce necking deformation during the processing of the outer stirrups; after the outer stirrups are completed, the steel cage is formed. During the recovery process of the device, the "T" support is first dropped by contracting the supporting thin rod 41, and then the steel clamp 3 and the fixing knob 22 are loosened to return the device to its original state for use in the next steel cage processing.

[0029] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. An adjustable inner support for steel cage processing, characterized in that: The invention comprises a fixing plate (1), a support rod (2) and a steel bar clamp (3), wherein the fixing plate (1) is a central foundation connection component, the support rods (2) are arranged in a circular array on the fixing plate (1), and the steel bar clamp (3) is arranged at one end of the support rod (2) away from the fixing plate (1), and the steel bar clamp (3) is a group of symmetrically arranged circular arc-shaped elastic iron sheets, which are used to clamp the main steel bars of the steel cage.

2. The adjustable inner support for steel cage processing according to claim 1 is characterized in that: A scale rod (21) is slidably connected inside the support rod (2), the steel bar clamp (3) is connected to the scale rod (21), and a fixing knob (22) capable of temporarily fixing the scale rod (21) is provided on the support rod (2).

3. The adjustable inner support for steel cage processing according to claim 2 is characterized in that: The support rods (2) are reinforced by inner support hoops (5).

4. The adjustable inner support for steel cage processing according to claim 3 is characterized in that: The inner support hoops (5) are arranged in an array.

5. The adjustable inner support for steel cage processing according to claim 4 is characterized in that: One end of the support rod (2) close to the steel bar clamp (3) is rotatably connected to a plate strip (4), a locking piece (42) is slidably connected to the support rod (2), and slot holes (43) for temporarily fixing the locking piece (42) are arranged in an array on the support rod (2), and a thin support rod (41) is arranged between the plate strip (4) and the locking piece (42), and one end of the thin support rod (41) is rotatably connected to the plate strip (4), and the other end is rotatably connected to the locking piece (42).

6. The adjustable inner support for steel cage processing according to claim 5, characterized in that: The plate strips (4) are symmetrically arranged in the direction in which the steel bar clamp (3) penetrates, with the support rod (2) as the center.

7. A construction method for processing a steel cage, characterized in that: The method of using the adjustable inner support for steel cage processing as claimed in claim 6 to tie the steel cage is characterized in that it includes the following steps: Step 1: According to the size of the steel cage, adjust the support rod (2) to the corresponding scale, use the fixing knob (22) to tighten the position of the support rod (2), and arrange adjustable inner supports for steel cage processing at intervals in the steel cage processing area; Step 2: placing the main reinforcement bar in the reinforcement bar clamp (3), and fixing the main reinforcement bar position by the reinforcement bar clamp (3) to prevent the main reinforcement bar from tilting and displacement; Step 3: Welding of inner stirrups and main reinforcement; Step 4: After the inner stirrups are welded, the outer stirrups of the steel cage are constructed; Step 5: Complete the construction of external stirrups and form the steel cage; Step 6: The device is recovered by first retracting the thin support rod (41) to make the "T"-shaped support fall down, and then loosening the steel bar clamp (3) and the fixing knob (22) to return the device to its initial state for reuse.

8. A construction method for processing a steel cage according to claim 7, characterized in that: In the step 4, before the construction of the outer stirrups, the front end of the support rod (2) is opened to connect and fix the plate strip (4) with the thin support rod (41), so as to form a "T"-shaped support, thereby increasing the outer cross-sectional area of ​​the main reinforcement part, providing more support points for the outer stirrups, and reducing the shrinkage deformation during the processing of the outer stirrups.

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