Steel reinforcement cage with u-shaped buckle and hoisting process thereof

Abstract

The application relates to a reinforcing cage with a U-shaped buckle and a hoisting process thereof, and belongs to the technical field of subway construction. The reinforcing cage comprises a plurality of main reinforcement and a reinforcing hoop, the main reinforcement is distributed along the circumference of the reinforcing hoop, the reinforcing hoop is provided with a U-shaped buckle, the two sides of the U-shaped buckle are welded with the main reinforcement, and the end of the U-shaped buckle far from the open end is welded with the reinforcing hoop. The application has the effects of preventing the main reinforcement and the reinforcing hoop from being unwelded and reducing the damage or deformation of the reinforcing cage in the hoisting engineering.

Description

Technical Field

[0001] This invention relates to the technical field of subway construction, and in particular to a steel cage with a U-shaped buckle and its hoisting process. Background Technology

[0002] In subway construction, the reinforcing cage plays a similar role to the column in terms of stress, primarily acting as a tensile force. While concrete has high compressive strength, its tensile strength is very low. It serves to restrain the concrete of the pile body, enabling it to withstand a certain amount of axial tensile force.

[0003] In the construction of some large reinforced concrete bored piles, it is necessary to cast a reinforcing cage. One type of reinforcing cage, as shown in the following figure... Figure 1 A steel reinforcement cage includes multiple main bars 1 and one reinforcing stirrup 2. The axial directions of the multiple main bars 1 are parallel to each other, the reinforcing stirrup 2 is in the shape of a ring, the main bars 1 are distributed along the circumference of the reinforcing stirrup 2, and the connection between the reinforcing stirrup 2 and the main bars 1 is welded.

[0004] Because the weight of the steel cage is heavy, reaching tens or even hundreds of tons, the reinforcing stirrups 2 are spot welded to each main bar 1. However, spot welding may result in incomplete welding or false welding, which may cause the reinforcing stirrups 2 and the main bars 1 to detach during hoisting, potentially causing deformation or damage to the steel cage. Summary of the Invention

[0005] To prevent the main reinforcement bars and reinforcing stirrups from detaching from the weld and to reduce damage or deformation of the steel cage during hoisting operations, this invention provides a steel cage with a U-shaped buckle.

[0006] The present invention provides a steel cage with a U-shaped buckle, which adopts the following technical solution:

[0007] A steel cage with a U-shaped buckle includes multiple main bars and a reinforcing stirrup. The main bars are distributed circumferentially along the reinforcing stirrup. The reinforcing stirrup is provided with a U-shaped buckle. The two sides of the U-shaped buckle are welded to the main bars, and the end of the U-shaped buckle away from the open end is welded to the reinforcing stirrup.

[0008] By adopting the above technical solution, during hoisting, the hoisting rope passes through the U-shaped buckle. On the one hand, the tension of the hoisting rope is increased to bear the weight at multiple points, thus dispersing the weight and preventing the reinforcing stirrups from falling off. On the other hand, instead of directly hoisting the reinforcing stirrups in the traditional way, the reinforcing stirrups are used as a second backup hoisting point, which can prevent the steel cage from falling off in time when the U-shaped buckle falls off.

[0009] Optionally, there are two U-shaped buckles, which are symmetrically arranged on the reinforcing stirrups.

[0010] By adopting the above technical solution, the U-shaped buckle should be arranged symmetrically during welding to prevent eccentricity during hoisting and to prevent the steel cage from tilting or overturning.

[0011] Optionally, a positioning mechanism is provided at the connection between the U-shaped buckle and the reinforcing stirrup; the positioning mechanism includes a connecting rod, which is sleeved on the reinforcing stirrup, and the top of the connecting rod is fixed to the reinforcing stirrup by bolts and nuts. A support plate is detachably connected to the side of the connecting rod away from the open end. The support plate is used to support the side of the U-shaped buckle away from the open end. A clearance groove is opened on the connecting rod corresponding to the position of the support plate. The support plate abuts against the side of the U-shaped buckle away from the open end. The support plate is welded to the reinforcing stirrup, and the U-shaped buckle is welded to the connecting plate.

[0012] By adopting the above technical solution, the U-shaped buckle, the reinforcing stirrup, and the connecting plate are welded together, increasing the contact area between the U-shaped buckle and the reinforcing stirrup. During hoisting, the U-shaped buckle and the reinforcing stirrup share the weight, preventing the reinforcing stirrup and the main reinforcement from detaching from the weld.

[0013] Optionally, a connecting plate is welded to the side of the connecting rod away from the open end, a groove is provided on the connecting plate, a slider is fixedly connected to the support plate, the slider is slidably connected in the groove, and the bottom of the connecting plate is threaded with bolts to fix the support plate and the connecting plate.

[0014] By adopting the above technical solution, the support plate is slidably connected to the connecting plate, and the support plate can be installed on the connecting plate before welding the U-shaped buckle, which reduces the space occupied by the positioning mechanism and facilitates the transportation of the positioning mechanism.

[0015] Optionally, the U-shaped buckle is provided with fasteners on both sides; the fasteners include a first clamping plate and a second clamping plate arranged in a U-shape, the first clamping plate and the second clamping plate are connected together, the opposite sides of the first clamping plate and the second clamping plate are open, the first clamping plate is used to clamp onto the U-shaped buckle, the second clamping plate is used to clamp onto the main rib, and both sides of the open ends of the first clamping plate and the second clamping plate are provided with through holes, bolts are inserted into the through holes, and nuts are threaded onto the bolts after they pass through the through holes.

[0016] By adopting the above technical solution, clamp plate one is attached to the U-shaped buckle, clamp plate two is attached to the main reinforcement, and finally the open ends of clamp plate one and clamp plate two are closed with bolts and nuts, which can fix the U-shaped buckle and the main reinforcement, making the connection between the U-shaped buckle and the main reinforcement more stable and preventing the U-shaped buckle from detaching from the main reinforcement during the hoisting process.

[0017] Optionally, a sleeve plate is fixedly provided on the side of the first card plate near the second card plate, and a slot is provided in the sleeve plate. A telescopic plate is fixedly connected to the side of the second card plate near the first card plate. The telescopic plate is inserted into the slot of the sleeve plate, and bolts for fixing the telescopic plate and the sleeve plate are threaded on the sleeve plate.

[0018] By adopting the above technical solution, bolts are used to fix the telescopic plate and the sleeve plate, which facilitates the fixing of clamp plate one and clamp plate two. Clamp plate one and clamp plate two are respectively installed on the U-shaped buckle and the main reinforcement, which can fix the U-shaped buckle and the main reinforcement, making the connection between the U-shaped buckle and the main reinforcement more stable.

[0019] Optionally, a pre-positioning mechanism is provided at the connection between the reinforcing stirrup and the main reinforcement; the pre-positioning mechanism includes a support column, one end of which is provided with a slot for engaging the reinforcing stirrup, and the other end of which is provided with a positioning component for fixing the reinforcing stirrup and the main reinforcement.

[0020] By adopting the above technical solution, the reinforcing stirrup is snapped into the slot of the support column, and the positioning component fixes the reinforcing stirrup to the main reinforcement, which can fix the reinforcing stirrup to the main reinforcement and facilitates the connection between the reinforcing stirrup and the main reinforcement.

[0021] Optionally, the positioning component includes a first arc-shaped plate fixed on the support column, the first arc-shaped plate being used to snap onto the main reinforcement, a second arc-shaped plate arranged in an arc shape being fitted on the first arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate being fastened together onto the main reinforcement, and through holes being opened at both ends of the first arc-shaped plate and the second arc-shaped plate, and a nut being threadedly connected after the bolt passes through the two through holes.

[0022] By adopting the above technical solution, the first arc plate and the second arc plate are fastened together on the main reinforcement. Finally, the bolt passes through two through holes and is threaded with a nut, which can fix the support column and the main reinforcement.

[0023] Optionally, a reinforcing rod is welded to the position of the main reinforcement corresponding to the reinforcing bar, the end of the reinforcing rod is welded to the main reinforcement, and the side wall of the reinforcing rod is welded to the main reinforcement.

[0024] By adopting the above technical solution, the reinforcing bar can strengthen the connection between the main reinforcement and the reinforcing stirrup, making the connection between the main reinforcement and the reinforcing stirrup more stable.

[0025] To reduce the detachment of main reinforcement bars and stirrups, and to minimize damage to the steel cage during hoisting, this invention provides a hoisting process for steel cages with U-shaped buckles.

[0026] A hoisting process for a steel cage with a U-shaped buckle includes the following steps:

[0027] S1. Welding main reinforcement and reinforcing stirrups: First, attach the slot to the reinforcing stirrup, then fix the first arc plate and the second arc plate to the main reinforcement with bolts and nuts, then weld the connection between the reinforcing stirrup and the main reinforcement, and finally weld the reinforcing rod to the reinforcing stirrup and the main reinforcement.

[0028] S2. Welding U-shaped buckles: Bolt the connecting rods to the U-shaped buckles at the positions symmetrical to the reinforcing stirrups, fix the support plate on the connecting rods, and finally abut the U-shaped buckles against the support plate. Weld the end of the U-shaped buckle away from the open end to the support plate and the reinforcing stirrups, and finally weld the two sides of the U-shaped buckle to the main reinforcement.

[0029] S3. Reinforced U-shaped buckle: Attach the first clamp to the U-shaped buckle and the second clamp to the main rib. Seal the open ends of the first and second clamps with bolts and nuts.

[0030] S4. Hoisting the steel cage: Pass the hoisting rope through the two U-shaped buckles.

[0031] By adopting the above technical solution, before welding the main reinforcement and reinforcing stirrups, the reinforcing stirrups and main reinforcement are fixed by the support column. Then, the connection between the reinforcing stirrups and main reinforcement is welded together. After that, the reinforcing rod is welded to the reinforcing stirrups and main reinforcement. Then, connecting rods are bolted to the reinforcing stirrups at symmetrical positions, and support plates are fixed to the connecting rods. Finally, U-shaped buckles are abutted against the support plates, and the end of the U-shaped buckle away from the open end is welded to the support plate and the reinforcing stirrup. Finally, the two sides of the U-shaped buckle and the main reinforcement are connected. Welding; finally, clamp plate one is attached to the U-shaped buckle, and clamp plate two is attached to the main reinforcement. The open ends of clamp plate one and clamp plate two are closed with bolts and nuts, which can fix the U-shaped buckle and the main reinforcement for a second time. The lifting rope passes through the two U-shaped buckles. On the one hand, the tension of the lifting rope is increased to bear the weight at one point, which disperses the weight and prevents the reinforcing stirrup from falling off. On the other hand, instead of the traditional direct lifting of the reinforcing stirrup, the reinforcing stirrup is used as a second backup lifting point, which can prevent the steel cage from falling off in time when the U-shaped buckle falls off. Attached Figure Description

[0032] Figure 1 This is a structural diagram from the background technology.

[0033] Figure 2 This is a schematic diagram of the overall structure of this application.

[0034] Figure 3 This is a structural diagram designed to highlight the pre-positioning mechanism.

[0035] Figure 4 This is an exploded view of the pre-positioning mechanism and the reinforcing rod.

[0036] Figure 5 This is a structural diagram designed to highlight the U-shaped buckle, reinforcing stirrups, and main reinforcement bars.

[0037] Figure 6 It is an exploded view of the U-shaped buckle, positioning mechanism, and fasteners.

[0038] Figure 7 This is a cross-sectional view of the U-shaped buckle and positioning mechanism.

[0039] Figure 8 This is a schematic diagram of the overall structure of the fastener.

[0040] Figure 9 This is a sectional view of the fastener.

[0041] Explanation of reference numerals in the attached drawings: 1. Main reinforcement bar; 2. Reinforcing stirrup; 3. Pre-positioning mechanism; 31. Support column; 311. Slot; 32. First arc-shaped plate; 33. Second arc-shaped plate; 4. Reinforcing rod; 5. U-shaped buckle; 6. Positioning mechanism; 61. Connecting rod; 611. Leaving groove; 62. Connecting plate; 621. Slide groove; 63. Support plate; 631. Sliding block; 7. Fixing component; 71. First clamping plate; 711. Through hole; 712. Sleeve plate; 713. Slot; 72. Second clamping plate; 721. Telescopic plate. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 2-9 The present invention will be described in further detail below.

[0043] Example 1:

[0044] This invention discloses a steel cage with a U-shaped buckle. (Refer to...) Figure 2 A steel cage with a U-shaped buckle includes multiple main bars 1 and one reinforcing stirrup 2. The main bars 1 are distributed circumferentially along the reinforcing stirrup 2. A pre-positioning mechanism 3 is provided at the connection between the reinforcing stirrup 2 and the main bars 1 (only some of the connection between the main bars 1 and the reinforcing stirrup 2 is shown in the figure, but all the connection between the main bars 1 and the reinforcing stirrup 2 is provided with the pre-positioning mechanism 3 in the field construction). The pre-positioning mechanism 3 is used to fix the main bars 1 and the reinforcing stirrup 2 so that the main bars 1 and the reinforcing stirrup 2 can be welded.

[0045] Reference Figure 3 and Figure 4 The pre-positioning mechanism 3 includes a support column 31. A first arc-shaped plate 32 is fixed at one end of the support column 31. The first arc-shaped plate 32 is used to snap onto the main rib 1. A second arc-shaped plate 33 is fitted on the first arc-shaped plate 32. The second arc-shaped plate 33 is also arc-shaped and can snap onto the other side of the main rib 1, so that the first arc-shaped plate 32 and the second arc-shaped plate 33 are fastened onto the main rib 1. Both ends of the first arc-shaped plate 32 and the second arc-shaped plate 33 are provided with through holes. After the bolt passes through the two through holes, a nut is threaded onto it, which can fix the support column 31 and the main rib 1. A slot 311 is provided at the end of the support column 31 away from the first arc plate 32. The slot 311 is located on the side of the support column 31 close to the main reinforcement 1. The slot 311 is semi-arc-shaped and can be engaged with the reinforcing stirrup 2, so that the reinforcing stirrup 2 abuts against the main reinforcement 1. This not only facilitates the welding between the reinforcing stirrup 2 and the main reinforcement 1, but also strengthens the connection between the main reinforcement 1 and the reinforcing stirrup 2, making the connection between the main reinforcement 1 and the reinforcing stirrup 2 more stable.

[0046] A reinforcing rod 4 is welded to the position of the reinforcing stirrup 2 corresponding to the position of the main reinforcement 1. The end of the reinforcing rod 4 is welded to the main reinforcement 1, and the side wall of the reinforcing rod 4 is welded to the main reinforcement 1. The reinforcing rod 4 can strengthen the connection between the main reinforcement 1 and the reinforcing stirrup 2, making the connection between the main reinforcement 1 and the reinforcing stirrup 2 more stable.

[0047] Reference Figure 2 and Figure 5 To improve the safety of hoisting the steel cage, two U-shaped buckles 5 are provided on the reinforcing stirrup 2. The U-shaped buckles 5 are symmetrically arranged on the reinforcing stirrup 2. The two sides of the U-shaped buckles 5 abut against the main reinforcement 1 and are welded together with the main reinforcement 1. A positioning mechanism 6 is provided at the connection between the U-shaped buckles 5 and the reinforcing stirrup 2.

[0048] Reference Figure 6 and Figure 7 The positioning mechanism 6 includes a U-shaped connecting rod 61, which is sleeved onto the reinforcing stirrup 2 from the bottom. The top of the connecting rod 61 is fixed to the reinforcing stirrup 2 by bolts and nuts. A connecting plate 62 is welded to the side of the connecting rod 61 away from the open end. An L-shaped groove 621 is formed on the connecting plate 62. A support plate 63 is slidably connected in the groove 621. An L-shaped slider 631 is fixedly connected to the support plate 63 and is slidably connected in the groove 621. Bolts are threaded to the bottom of the connecting plate 62 for securing the support plate 63. 3 is fixed to the connecting plate 62. The support plate 63 is used to support the U-shaped buckle 5. The connecting rod 61 has a relief groove 611 at the position corresponding to the support plate 63. The support plate 63 abuts against the side of the U-shaped buckle 5 away from the open end. The support plate 63 abuts against the reinforcing stirrup 2. Then the U-shaped buckle 5 and the connecting plate 62 are welded together. The U-shaped buckle 5 and the reinforcing stirrup 2 are welded together. The welding between the U-shaped buckle 5, the reinforcing stirrup 2 and the connecting plate 62 increases the contact area between the U-shaped buckle 5 and the reinforcing stirrup 2. During hoisting, the U-shaped buckle 5 and the reinforcing stirrup 2 share the weight to prevent the reinforcing stirrup 2 and the main bar 1 from detaching from the weld.

[0049] Reference Figure 5 and Figure 8 The U-shaped buckle 5 has fasteners 7 on both sides. The fasteners 7 are used to fix the U-shaped buckle 5 and the main rib 1, making the connection between the U-shaped buckle 5 and the main rib 1 more stable. The fasteners 7 include a U-shaped clamping plate 71 and a clamping plate 72. The clamping plate 71 and the clamping plate 72 are connected together. The opposite sides of the clamping plate 71 and the clamping plate 72 are open. Both sides of the open end of the clamping plate 71 and the clamping plate 72 have through holes 711. Bolts are inserted into the through holes 711. After the bolts pass through the through holes 711, nuts are threaded onto them. The clamping plate 71 is clamped onto the U-shaped buckle 5, and the clamping plate 72 is clamped onto the main rib 1. Finally, the open ends of the clamping plate 71 and the clamping plate 72 are closed by bolts and nuts, thus fixing the U-shaped buckle 5 and the main rib 1.

[0050] Reference Figure 9 A sleeve plate 712 is fixedly provided on the side of the first clamping plate 71 near the second clamping plate 72. A slot 713 is provided in the sleeve plate 712. A telescopic plate 721 is fixedly connected to the side of the second clamping plate 72 near the first clamping plate 71. The telescopic plate 721 is inserted into the slot 713 of the sleeve plate 712. A bolt is threaded on the sleeve plate 712 to fix the telescopic plate 721 and the sleeve plate 712. The bolt is used to fix the telescopic plate 721 and the sleeve plate 712, which facilitates the fixing of the first clamping plate 71 and the second clamping plate 72. The first clamping plate 71 and the second clamping plate 72 are respectively installed on the U-shaped buckle 5 and the main rib 1, which can fix the U-shaped buckle 5 to the main rib 1, making the connection between the U-shaped buckle 5 and the main rib 1 more stable.

[0051] The implementation principle of a steel cage with a U-shaped buckle in this invention is as follows: Before welding the main reinforcement 1 and the reinforcing stirrup 2, the reinforcing stirrup 2 and the main reinforcement 1 are fixed by the support column 31. Then, the connection between the reinforcing stirrup 2 and the main reinforcement 1 is welded together. After that, the reinforcing rod 4 is welded to the reinforcing stirrup 2 and the main reinforcement 1. Then, the connecting rod 61 is bolted to the symmetrical position of the reinforcing stirrup 2, and the support plate 63 is fixed to the connecting rod 61. Finally, the U-shaped buckle 5 is abutted against the support plate 63. The end of the U-shaped buckle 5 away from the open end is welded to the support plate 63 and the reinforcing stirrup 2. Finally, the two sides of the U-shaped buckle 5 are welded to the main reinforcement 1. Finally, the clamping plate 1 71 is clamped to the U-shaped buckle 5, and the clamping plate 2 72 is clamped to the main reinforcement 1. The open ends of the clamping plate 1 71 and the clamping plate 2 72 are closed by bolts and nuts, which can fix the U-shaped buckle 5 and the main reinforcement 1 a second time.

[0052] Example 2:

[0053] Embodiment 2 of the present invention discloses a hoisting process for a steel cage with a U-shaped buckle, comprising the following steps:

[0054] S1. Welding main reinforcement 1 and reinforcing stirrup 2: First, snap the slot 311 onto the reinforcing stirrup 2, then fix the first arc plate 32 and the second arc plate 33 onto the main reinforcement 1 with bolts and nuts, then weld the connection between the reinforcing stirrup 2 and the main reinforcement 1, and finally weld the reinforcing rod 4 onto the reinforcing stirrup 2 and the main reinforcement 1.

[0055] S2. Welding U-shaped buckle 5: Bolt the connecting rod 61 to the U-shaped buckle 5 at the symmetrical position of the reinforcing stirrup 2, fix the support plate 63 on the connecting rod 61, and finally abut the U-shaped buckle 5 against the support plate 63. Weld the end of the U-shaped buckle 5 away from the open end to the support plate 63 and the reinforcing stirrup 2, and finally weld both sides of the U-shaped buckle 5 to the main reinforcement 1.

[0056] S3. Reinforcement of U-shaped buckle 5: Clip plate 1 71 is clipped onto U-shaped buckle 5, and clip plate 2 72 is clipped onto main rib 1. The open ends of clip plate 1 71 and clip plate 2 72 are closed by bolts and nuts, which can fix U-shaped buckle 5 and main rib 1 a second time.

[0057] S4. Hoisting the steel cage: Pass the hoisting rope through the two U-shaped buckles 5 to prevent hoisting eccentricity and ensure more stable hoisting.

[0058] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A steel cage with a U-shaped buckle, comprising multiple main bars (1) and one reinforcing stirrup (2), wherein the main bars (1) are distributed circumferentially along the reinforcing stirrup (2), characterized in that: The reinforcing stirrup (2) is provided with a U-shaped buckle (5), the two sides of the U-shaped buckle (5) are welded to the main bar (1), and the end of the U-shaped buckle (5) away from the open end is welded to the reinforcing stirrup (2); There are two U-shaped buckles (5), and the two U-shaped buckles (5) are symmetrically arranged on the reinforcing stirrups (2); A positioning mechanism (6) is provided at the connection between the U-shaped buckle (5) and the reinforcing stirrup (2); the positioning mechanism (6) includes a connecting rod (61), which is sleeved on the reinforcing stirrup (2). The top of the connecting rod (61) is fixed to the reinforcing stirrup (2) by bolts and nuts. A support plate (63) is detachably connected to the side of the connecting rod (61) away from the open end. The support plate (63) is used to support the side of the U-shaped buckle (5) away from the open end. A relief groove (611) is opened on the connecting rod (61) corresponding to the position of the support plate (63). The support plate (63) abuts against the side of the U-shaped buckle (5) away from the open end. The support plate (63) is welded to the reinforcing stirrup (2), and the U-shaped buckle (5) is welded to the connecting plate (62). A connecting plate (62) is welded to the side of the connecting rod (61) away from the open end. A groove (621) is provided on the connecting plate (62). A slider (631) is fixedly connected to the support plate (63). The slider (631) is slidably connected in the groove (621). The bottom of the connecting plate (62) is threaded with bolts that fix the support plate (63) and the connecting plate (62). The U-shaped buckle (5) is provided with fasteners (7) on both sides; the fasteners (7) include a U-shaped clamping plate one (71) and a clamping plate two (72), the clamping plate one (71) and the clamping plate two (72) are connected together, the opposite sides of the clamping plate one (71) and the clamping plate two (72) are open, the clamping plate one (71) is used to clamp onto the U-shaped buckle (5), the clamping plate two (72) is used to clamp onto the main rib (1), and the two sides of the open ends of the clamping plate one (71) and the clamping plate two (72) are provided with through holes (711), bolts are inserted into the through holes (711), and nuts are threaded onto the bolts after they pass through the through holes (711); A sleeve plate (712) is fixedly provided on the side of the first card plate (71) near the second card plate (72). A slot (713) is provided in the sleeve plate (712). A telescopic plate (721) is fixedly connected on the side of the second card plate (72) near the first card plate (71). The telescopic plate (721) is inserted into the slot (713) of the sleeve plate (712). Bolts for fixing the telescopic plate (721) and the sleeve plate (712) are threaded on the sleeve plate (712).

2. A steel cage with a U-shaped buckle according to claim 1, characterized in that: A pre-positioning mechanism (3) is provided at the connection between the reinforcing stirrup (2) and the main reinforcement (1); the pre-positioning mechanism (3) includes a support column (31), one end of the support column (31) is provided with a slot (311) for engaging the reinforcing stirrup (2), and the other end of the support column (31) is provided with a positioning component for fixing the reinforcing stirrup (2) and the main reinforcement (1).

3. A steel cage with a U-shaped buckle according to claim 2, characterized in that: The positioning component includes a first arc-shaped plate (32) fixed on the support column (31), the first arc-shaped plate (32) is used to snap onto the main reinforcement (1), and a second arc-shaped plate (33) arranged in an arc shape is fitted on the first arc-shaped plate (32). The first arc-shaped plate (32) and the second arc-shaped plate (33) are fastened together on the main reinforcement (1). Both ends of the first arc-shaped plate (32) and the second arc-shaped plate (33) are provided with through holes, and a bolt passes through the two through holes and is threaded with a nut.

4. A steel cage with a U-shaped buckle according to claim 1, characterized in that: The reinforcing stirrup (2) is welded with a reinforcing rod (4) at the position corresponding to the main reinforcement (1). The end of the reinforcing rod (4) is welded to the main reinforcement (1), and the side wall of the reinforcing rod (4) is welded to the main reinforcement (1).

5. A hoisting process for a steel cage with a U-shaped buckle as described in any one of claims 1 to 4, characterized in that: The steps include: S1, welding the main reinforcement (1) and the reinforcing stirrup (2): first, attach the slot (311) to the reinforcing stirrup (2), then fix the first arc plate (32) and the second arc plate (33) to the main reinforcement (1) with bolts and nuts, then weld the connection between the reinforcing stirrup (2) and the main reinforcement (1), and finally weld the reinforcing rod (4) to the reinforcing stirrup (2) and the main reinforcement (1); S2, welding the U-shaped buckle (5): fix the connecting rod (61) with the U-shaped buckle (5) at the symmetrical position of the reinforcing stirrup (2), and fix the connecting rod (61) on the connecting rod (61). Set the support plate (63), and finally attach the U-shaped buckle (5) to the support plate (63). Weld the end of the U-shaped buckle (5) away from the open end to the support plate (63) and the reinforcing stirrup (2). Finally, weld the two sides of the U-shaped buckle (5) to the main reinforcement (1). S3, Reinforce the U-shaped buckle (5): Attach the first clamp (71) to the U-shaped buckle (5) and attach the second clamp (72) to the main reinforcement (1). Close the open ends of the first clamp (71) and the second clamp (72) with bolts and nuts. S4, Hoist the steel cage: Pass the hoisting rope through the two U-shaped buckles (5).

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