Post-cast strip support device and construction method thereof

Abstract

This invention relates to the field of building engineering technology and discloses a post-cast strip support device and its construction method. The device includes bar-shaped reinforcing bars, with a reinforcing frame fitted onto the arc-shaped outer wall of each bar. A locking wire is fitted between the bar-shaped reinforcing bars and the reinforcing frame. The reinforcing frame is square-shaped, and four sets of bar-shaped reinforcing bars are provided, each set positioned at one of the four apex corners of the locking wire. A shaping mechanism is incorporated to create multiple sets of equilateral and inverted triangular structures between the two sets of reinforcing cages. This ensures the stability of the upper main bar, lower main bar one and lower main bar two, as well as the lower auxiliary bar, upper auxiliary bar one and upper auxiliary bar two, on the two sets of reinforcing cages after installation. This enhances the compressive strength of the post-cast strip structure after pouring and, to a certain extent, improves the holding force of the internal reinforcing structure on the concrete, ensuring the tensile and shear strength of the post-cast strip.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a post-cast strip support device and its construction method. Background Technology

[0002] With the development of the construction industry, more and more super-long buildings are gradually increasing. In order to ensure the safety of building construction and subsequent use, the construction of post-pouring strips is considered when designing the construction of buildings. Post-pouring strips are constructed in the corresponding positions of foundation slabs, walls and beams in accordance with design or construction specifications to prevent harmful cracks that may occur in reinforced concrete structures due to uneven shrinkage or settlement.

[0003] The existing post-cast strip support device is similar to the ordinary concrete structure during construction. It is enclosed by formwork and a corresponding steel frame is erected inside. Finally, it is constructed by pouring concrete. Generally, the post-cast strip is constructed a certain period of time after the construction on both sides is completed. Therefore, it can provide good tensile and crack resistance to the concrete structure of the building when the construction is completed, thus ensuring the overall safety of the building.

[0004] However, in actual use, the steel reinforcement frame inside the post-cast strip support device only plays an auxiliary role in shaping the post-cast strip. Due to the delayed construction of the post-cast strip, it is easy for it to separate from the buildings on both sides. The post-cast strip needs to bear different torsional forces on both sides, which can easily lead to breakage or deformation of the post-cast strip, thus causing certain safety hazards. In view of this, we propose a post-cast strip support device and its construction method. Summary of the Invention

[0005] The purpose of this invention is to provide a post-pouring strip support device and its construction method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a post-cast strip support device, comprising bar-shaped reinforcing bars, a reinforcing bar frame sleeved on the arc-shaped outer wall of the bar-shaped reinforcing bars, a locking wire sleeved between the bar-shaped reinforcing bars and the reinforcing bar frame, the reinforcing bar frame being square in shape, and four sets of bar-shaped reinforcing bars, the four sets of bar-shaped reinforcing bars being respectively positioned at the four apex corners of the locking wire, the four sets of bar-shaped reinforcing bars and the reinforcing bar frame forming a reinforcing cage, two sets of reinforcing cages being provided, and a shaping mechanism being provided between the two sets of reinforcing cages, the shaping mechanism comprising:

[0007] A steel cable is provided between the two sets of steel cages. The steel cable is arranged in a triangle and a sleeve is provided at the bottom end of the steel cable. An upper main rod passes through the axis of the sleeve and is welded and fixed to the sleeve. Lower main rod one and lower main rod two are respectively provided at the other two apex corners of the steel cable through the sleeve.

[0008] An arc-shaped plate is fixedly installed on the arc-shaped outer wall of the upper main rod;

[0009] A steel sling is provided between the two sets of steel cages. The steel sling is arranged in an inverted triangle. An auxiliary wheel is provided at the bottom corner of the steel sling. A lower auxiliary rod passes through the axis of the auxiliary wheel and is fixedly connected to the auxiliary wheel. An upper auxiliary rod one and an upper auxiliary rod two are respectively provided at the top two corners of the steel sling through the auxiliary wheel.

[0010] Preferably, the bar-shaped reinforcing bars and the locking wires are fixed by welding, and the locking wires are made of thin steel wires. The locking wires are made of multiple thin steel wires wound together to increase the strength of the locking wires, thereby ensuring the overall stability of the reinforcing cage during the pouring of the post-pouring strip, so as to avoid the collapse of the shape of the post-pouring strip during construction.

[0011] Preferably, the upper main rod is located at the central axis between the two sets of reinforcing cages, and the steel cable is closely attached to the top bar-shaped reinforcing bars on the side of the two sets of reinforcing cages that are close to each other. The steel cable is made of steel wire with high tensile strength, so that the steel cable can tightly fit the two sets of reinforcing cages.

[0012] Preferably, there are two sets of upper main rods, lower main rod one, lower main rod two, and steel cables. The two sets of upper main rods, lower main rod one, lower main rod two, and steel cables are symmetrically arranged along the central axis of the upper main rods. This allows the two sets of steel cables, together with the sleeves at their apex, to effectively form a triangular shape between the two sets of reinforcing cages. Consequently, the upper main rods, lower main rod one, and lower main rod two can improve the compressive strength of the post-cast strip structure after the post-cast strip is poured.

[0013] Preferably, the bottom apex of the steel sling and the top apex of the steel cable are set in the same plane, and the steel cable and the steel sling are mirror images of each other. Furthermore, the inner surface of the steel sling is closely attached to the arc-shaped outer wall of the bottom bar-shaped steel bars of the two sets of steel cages that are close to each other, so that after the steel cage is placed, the steel sling arranged in an inverted triangle can effectively restrict the lower auxiliary rod, the first upper auxiliary rod, and the second upper auxiliary rod.

[0014] Preferably, the outer arc-shaped walls of the sleeve wheel and the auxiliary wheel are provided with embedding grooves, and toothed rings are fixedly installed on the inner surfaces of the left and right sides of the embedding grooves. The embedding grooves are located at the central axis of the sleeve wheel and the auxiliary wheel to facilitate the fitting and positioning of the steel cable and the steel sling.

[0015] Preferably, the number of toothed rings is set in two sets, and the two sets of toothed rings are mirror images of each other on the left and right sides of the embedding groove. The toothed side of the toothed ring faces the center side of the embedding groove. The outer wall of the toothed ring is provided with a number of contact teeth, and the surface of the contact teeth is provided with a rubber layer to increase the contact efficiency between the toothed ring and the steel cable or steel sling.

[0016] Preferably, a reinforcing ring is fixedly installed on the arc-shaped outer wall of the upper main rod. The reinforcing ring is embedded in the gap between the arc-shaped plate and the upper main rod and is fixed by welding to improve the structural rigidity of the upper main rod. Furthermore, multiple sets of reinforcing rings are provided, and the multiple sets of reinforcing rings are respectively located at the end of the upper main rod and the side of the sleeve wheel, thereby effectively ensuring the strength of the upper main rod.

[0017] Preferably, reinforcing rings are also provided on the arc-shaped outer walls of the lower main rod one, lower main rod two, lower auxiliary rod, upper auxiliary rod one, and upper auxiliary rod two, thereby enabling the shaping mechanism to provide higher structural strength in the post-cast strip.

[0018] A construction method for a post-cast strip support device includes the following steps:

[0019] S1. Clean the reserved position of the post-pouring strip, and place the two sets of steel cages parallel to the reserved position and put them into the reserved position.

[0020] S2. Place the lower main rod one and the lower main rod two at the bottom of the two sets of steel cages respectively, and insert the sleeves into the upper main rod, the lower main rod one and the lower main rod two respectively;

[0021] S3. Spot weld the contact points between the sleeve wheel and the upper main rod, lower main rod one, and lower main rod two.

[0022] S4. Take a section of steel cable and wrap it around the arc-shaped outer wall of the sleeve wheel on the upper main rod, lower main rod one and lower main rod two, so that the steel cable forms a triangle, and spot weld the contact position between the steel cable and the bar-shaped steel bar it contacts.

[0023] S5. Place the lower auxiliary rod on the ground below the upper main rod, and use the form of steel cable winding to form an inverted triangle with the lower auxiliary rod, upper auxiliary rod one and upper auxiliary rod two with auxiliary wheels on the arc-shaped outer wall. Use the same method as in S4 to spot weld the contact part between the steel cable and the bar steel.

[0024] S6. Adjust the positional spacing between the steel cables and steel slings arranged in a triangle to ensure that the spacing between them is the same, and then erect the reinforced concrete structure after the cast-in-place strip.

[0025] S7. Concrete is poured at the reserved position of the post-cast strip to complete the construction work of the post-cast strip.

[0026] Compared with the prior art, the present invention provides a post-pouring strip support device and its construction method, which has the following beneficial effects:

[0027] 1. The post-cast strip support device and its construction method, by setting a shaping mechanism, sets multiple sets of equilateral and inverted triangular structures between two sets of steel cages, so that the upper main rod, lower main rod one and lower main rod two, as well as the lower auxiliary rod, upper auxiliary rod one and upper auxiliary rod two, maintain stability on the two sets of steel cages after being fitted together. This improves the compressive strength of the post-cast strip structure after it is poured, and to a certain extent improves the holding force of the steel reinforcement structure inside the post-cast strip on the concrete, ensuring the tensile and shear strength of the post-cast strip.

[0028] 2. The post-cast strip support device and its construction method involve fitting steel cables and steel slings onto the arc-shaped outer walls of the sling and auxiliary wheels to stably engage them in the embedding groove. This, combined with the toothed rings on both sides of the embedding groove, secures the steel cables and steel slings, preventing slippage during concrete pouring and ensuring the stability of the shaping mechanism during the pouring process. This ensures that the device maintains good tensile strength throughout the construction of the post-cast strip.

[0029] 3. The post-pouring strip support device and its construction method, by setting up reinforcing rings, enable the shaping mechanism to provide higher structural strength in the post-pouring strip. This not only avoids deformation of the steel structure during concrete pouring that could affect the strength of the post-pouring strip, but also enhances the structural strength after the post-pouring strip is constructed. This allows the post-pouring strip to withstand stronger vertical tensile and shear forces, ensuring the construction effect of the post-pouring strip. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the steel reinforcement frame structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the standardized component of the present invention;

[0033] Figure 4 This is a schematic diagram of the upper main rod, lower main rod one, and lower main rod two of the present invention;

[0034] Figure 5This is a schematic diagram of a partial structure of the steel cable of the present invention;

[0035] Figure 6 This is a schematic diagram of the main rod structure of the present invention.

[0036] In the diagram: 1. Bar-shaped steel bar; 2. Locking wire; 3. Steel bar frame; 4. Upper main rod; 5. Steel cable; 6. Sleeve wheel; 7. Lower main rod one; 8. Lower main rod two; 9. Curved plate; 10. Lower auxiliary rod; 11. Steel sleeve; 12. Auxiliary wheel; 13. Upper auxiliary rod one; 14. Upper auxiliary rod two; 15. Embedded groove; 16. Toothed ring; 17. Reinforcing ring. Detailed Implementation

[0037] like Figures 1-6 As shown, the present invention provides a technical solution: a post-cast strip support device and its construction method, including a bar-shaped steel bar 1, a steel bar frame 3 sleeved on the arc-shaped outer wall of the bar-shaped steel bar 1, a locking steel wire 2 sleeved between the bar-shaped steel bar 1 and the steel bar frame 3, the steel bar frame 3 being square in shape, and the number of bar-shaped steel bars 1 being four sets, the four sets of bar-shaped steel bars 1 being respectively set at the four apex corners of the locking steel wire 2, the four sets of bar-shaped steel bars 1 and the steel bar frame 3 forming a steel cage, the number of steel cages being two sets, a shaping mechanism being provided between the two sets of steel cages, the shaping mechanism including a steel cable 5, a sleeve wheel 6, a lower main rod 1 7, a lower main rod 2 8, an arc-shaped plate 9, a steel sleeve 11, an auxiliary wheel 12, a lower auxiliary rod 10, and an upper auxiliary rod 1 13 and an upper auxiliary rod 2 14.

[0038] In an embodiment of the present invention, a steel cable 5 is sleeved between two sets of reinforcing cages. The steel cable 5 is triangular in shape, and a wheel 6 is sleeved at the bottom end of the steel cable 5. An upper main rod 4 passes through the axis of the wheel 6. The upper main rod 4 and the wheel 6 are welded and fixed together. At the other two apex corners of the steel cable 5, a lower main rod 7 and a lower main rod 8 are respectively sleeved through the wheel 6. An arc plate 9 is fixedly installed on the arc-shaped outer wall of the upper main rod 4. A steel cable 11 is sleeved between the two sets of reinforcing cages. The steel cable 11 is inverted triangular in shape. An auxiliary wheel 12 is sleeved at the bottom apex corner of the steel cable 11. A lower auxiliary rod 10 passes through the axis of the auxiliary wheel 12, and the lower auxiliary rod 10 is fixedly connected to the auxiliary wheel 12. At the top two apex corners of the steel cable 11, an upper auxiliary rod 13 and an upper auxiliary rod 2 14 are respectively sleeved through the auxiliary wheel 12.

[0039] In one embodiment of the present invention, the rod-shaped reinforcing bar 1 and the locking wire 2 are fixed by welding. The locking wire 2 is made of thin steel wire, specifically, it is made of multiple thin steel wires wound together to increase its strength, thereby ensuring the overall stability of the reinforcing cage during the pouring of the post-pouring strip and preventing the post-pouring strip from collapsing during construction. Furthermore, multiple sets of locking wires 2 and reinforcing bar frames 3 are provided, and these sets are evenly distributed in a linear array on the outer wall of the rod-shaped reinforcing bar 1, so that the reinforcing cage as a whole has good compressive and deformation resistance. At the same time, the upper main rod 4 is set at the central axis between the two sets of reinforcing cages, and the steel cable 5 is closely attached to the top rod-shaped reinforcing bar 1 on the side of the two sets of reinforcing cages that are close to each other. Specifically, the steel cable 5 is made of high tensile strength steel wire, thereby ensuring the stability of the reinforcing cage. The cable 5 can tightly clamp the two sets of reinforcing cages, thus facilitating the positioning and erection of the steel cable 5, the upper main rod 4, the lower main rod 1 7, and the lower main rod 2 8. Furthermore, the mutual restraint between the two sets of reinforcing cages allows the steel cable 5 to maintain a triangular configuration. Additionally, there are two sets of the upper main rod 4, the lower main rod 1 7, the lower main rod 2 8, and the steel cable 5, all symmetrically arranged along the central axis of the upper main rod 4. This allows the two sets of steel cables 5, together with the sleeve wheel 6 at their apex, to effectively form a triangular shape between the two sets of reinforcing cages. Consequently, the upper main rod 4, the lower main rod 1 7, and the lower main rod 2 8 can enhance the compressive strength of the post-cast strip structure after its pouring, and to a certain extent, improve the holding force of the reinforcing steel structure within the post-cast strip on the concrete, ensuring the tensile and shear strength of the post-cast strip.

[0040] Furthermore, the bottom apex of the steel cable 11 and the top apex of the steel cable 5 are set in the same plane, and the steel cable 5 and the steel cable 11 are mirror images of each other. Further, the inner surface of the steel cable 11 is tightly fitted to the arc-shaped outer wall of the bottom bar-shaped reinforcing bars 1 of the two sets of reinforcing cages, so that after the reinforcing cage is placed, the inverted triangular steel cable 11 can effectively restrain the lower auxiliary rod 10, the upper auxiliary rod 13, and the upper auxiliary rod 2 14, making them stably positioned inside the reinforcing cage. This ensures relative stability between the reinforcing cage and the shaping mechanism, preventing disintegration or displacement during concrete pouring. Furthermore, the auxiliary wheel 12 and the sleeve wheel 6 are identical, and the center of the auxiliary wheel 12 and the sleeve wheel 6 has through holes that match the outer diameter of the lower auxiliary rod 10 and the upper main rod 4. The sleeve wheel 6 and the upper main rod 4, and the auxiliary wheel 12 and the lower auxiliary rod 14 are also connected. All parts are fixed by welding to ensure the relative stability between the workpieces contained in the shaping mechanism. In addition, there are two sets of steel sleeves 11, and the two sets of steel sleeves 11 are mirror images of each other at both ends of the lower auxiliary rod 10. A certain distance is maintained between the steel sleeves 11 and the ends of the lower auxiliary rod 10, thereby ensuring the stability of the steel sleeves 11 on the lower auxiliary rod 10, as well as the upper auxiliary rod 13 and the upper auxiliary rod 2 14 when they are set on the reinforcing cage. Specifically, during construction, after the steel cables 5 and steel sleeves 11 are set, the workers can spot weld the steel cables 5 and steel sleeves 11 to the surface of the rod-shaped reinforcing bars 1 of the reinforcing cage to prevent the steel cables 5 and steel sleeves 11 from shifting or shaking after being set, thereby ensuring their posture during concrete pouring. This allows the shaping mechanism to effectively play a role in resisting tension and shear within the post-pouring strip.

[0041] Furthermore, three sets of arc-shaped plates 9 are provided, and the three sets of arc-shaped plates 9 are evenly distributed in a circular array on the arc-shaped outer wall of the upper main rod 4. The arc-shaped plates 9 extend out of the outer wall of the upper main rod 4 and are set in a curved shape on the outer wall of the upper main rod 4. Specifically, the three sets of arc-shaped plates 9 have the same curvature direction. Furthermore, arc-shaped plates 9 are provided on the arc-shaped outer walls of the lower main rod 1 7, lower main rod 2 8, lower auxiliary rod 10, upper auxiliary rod 1 13, and upper auxiliary rod 2 14 to effectively increase the contact area between the columnar structure in the shaping mechanism and the concrete, so that it can provide stronger structural rigidity and tensile and torsional resistance in the post-pouring strip, thereby ensuring the construction results and use effect of the post-pouring strip.

[0042] In an embodiment of the present invention, an embedding groove 15 is provided on the arc-shaped outer wall of the sleeve wheel 6 and the auxiliary wheel 12. Toothed rings 16 are fixedly installed on the inner surfaces of the left and right sides of the embedding groove 15. Specifically, the embedding groove 15 is located at the central axis of the sleeve wheel 6 and the auxiliary wheel 12 to facilitate the fitting and positioning of the steel cable 5 and the steel sling 11. Specifically, two sets of toothed rings 16 are provided, and the two sets of toothed rings 16 are mirror images of each other on the left and right sides of the embedding groove 15, with the toothed side of the toothed ring 16 facing the center of the embedding groove 15. Furthermore, the outer wall of the toothed ring 16 is provided with several contact teeth, and the surface of these contact teeth is provided with a rubber layer to increase the contact between the toothed ring 16 and the steel cable 5 or the steel sling 11. This improves the contact efficiency, thereby enhancing the outer surfaces of the steel cable 5 and steel sheath 11 on the sleeve wheel 6 and auxiliary wheel 12. Furthermore, the gap between the two sets of toothed rings 16 is matched to the outer diameter of the steel cable 5 and steel sheath 11, allowing them to be stably engaged in the embedding groove 15 when fitted onto the arc-shaped outer wall of the sleeve wheel 6 and auxiliary wheel 12. This, combined with the toothed rings 16 on both sides of the embedding groove 15, secures the steel cable 5 and steel sheath 11, preventing slippage during concrete pouring and ensuring the stability of the shaping mechanism during pouring. This ensures good tensile performance throughout the construction of the post-pouring strip.

[0043] Furthermore, a reinforcing ring 17 is fixedly installed on the arc-shaped outer wall of the upper main rod 4. The reinforcing ring 17 is embedded in the gap between the arc-shaped plate 9 and the upper main rod 4 and is fixed by welding to improve the structural rigidity of the upper main rod 4. Furthermore, multiple sets of reinforcing rings 17 are provided, and multiple sets of reinforcing rings 17 are respectively set at the end of the upper main rod 4 and the side of the sleeve wheel 6, thereby effectively ensuring the strength of the upper main rod 4. Specifically, reinforcing rings 17 are also provided on the arc-shaped outer walls of the lower main rod 1 7, lower main rod 2 8, lower auxiliary rod 10, upper auxiliary rod 1 13, and upper auxiliary rod 2 14. This allows the shaping mechanism to provide higher structural strength in the post-pouring strip. It can not only avoid the deformation of the steel structure during concrete pouring and affect the strength of the post-pouring strip, but also improve the structural strength after the post-pouring strip is constructed, so that the post-pouring strip can withstand stronger vertical tensile and shear forces, ensuring the construction effect of the post-pouring strip.

[0044] In this invention, during use, the reserved position for the post-pouring strip is cleaned, and two sets of reinforcing cages are aligned parallel to the reserved position and placed into the reserved position. Simultaneously, the two sets of reinforcing cages are mirror-image positioned on both sides of the central axis of the reserved position. Then, the lower main rod 7 and the lower main rod 8 are placed at the bottom of the two sets of reinforcing cages respectively. The sleeve wheels 6 are inserted onto the upper main rod 4, the lower main rod 7, and the lower main rod 8 respectively. After positioning in the predetermined position, the sleeve wheels 6 are fixed by spot welding. At this point, a section of steel cable 5 is taken and wound around the sleeve wheels fitted onto the upper main rod 4, the lower main rod 7, and the lower main rod 8. On the 6-arc outer wall, the steel cable 5 forms a triangle. At this time, the contact part between the steel cable 5 and the bar-shaped steel bar 1 of the steel cage is spot welded and fixed. Then, the lower auxiliary rod 10 is placed on the ground below the upper main rod 4, and the lower auxiliary rod 10, upper auxiliary rod 13 and upper auxiliary rod 2 14 with auxiliary wheels 12 on the arc outer wall are formed into an inverted triangle by using the form of steel loop 11. The position and distance between the triangular steel cable 5 and steel loop 11 are adjusted to form multiple equilateral triangle and inverted triangle structures. With the two sets of steel cages, the strength of the steel reinforcement structure of the post-cast strip is guaranteed.

[0045] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A post-cast strip support device, comprising a bar-shaped steel bar (1), a steel bar frame (3) sleeved on the arc-shaped outer wall of the bar-shaped steel bar (1), a locking wire (2) sleeved between the bar-shaped steel bar (1) and the steel bar frame (3), the steel bar frame (3) being square in shape, and the number of the bar-shaped steel bars (1) being four sets, the four sets of the bar-shaped steel bars (1) being respectively set at the four apex corners of the locking wire (2), the four sets of bar-shaped steel bars (1) and the steel bar frame (3) forming a steel cage, the number of the steel cage being two sets, characterized in that: A shaping mechanism is provided between the two sets of reinforcing cages, and the shaping mechanism includes: A steel cable (5) is provided between the two sets of steel cages. The steel cable (5) is arranged in a triangle and a wheel (6) is provided at the bottom end of the steel cable (5). An upper main rod (4) passes through the axis of the wheel (6). The upper main rod (4) is welded and fixed to the wheel (6). The other two apex corners of the steel cable (5) are respectively provided with a lower main rod one (7) and a lower main rod two (8) through the wheel (6). Arc plate (9), an arc plate (9) is fixedly installed on the arc-shaped outer wall of the upper main rod (4); A steel cable (11) is provided between the two sets of steel cages. The steel cable (11) is arranged in an inverted triangle. An auxiliary wheel (12) is provided at the bottom corner of the steel cable (11). A lower auxiliary rod (10) passes through the axis of the auxiliary wheel (12), and the lower auxiliary rod (10) is fixedly connected to the auxiliary wheel (12). At the two top corners of the steel cable (11), an upper auxiliary rod one (13) and an upper auxiliary rod two (14) are respectively provided through the auxiliary wheel (12).

2. The post-cast strip support device according to claim 1, characterized in that: The bar-shaped steel bar (1) and the locking wire (2) are fixed by welding when connected, and the locking wire (2) is made of thin steel wire, which is formed by winding multiple thin steel wires.

3. The post-cast strip support device according to claim 1, characterized in that: The upper main rod (4) is set at the central axis between the two sets of steel cages, and the steel cable (5) is closely attached to the top bar-shaped steel bar (1) on the side of the two sets of steel cages that are close to each other. The steel cable (5) is made of steel wire with high tensile strength.

4. The post-cast strip support device according to claim 1, characterized in that: The number of the upper main rod (4), lower main rod one (7), lower main rod two (8) and steel cable (5) is set in two sets, and the central axis of the upper main rod (4) of the two sets of upper main rod (4), lower main rod one (7), lower main rod two (8) and steel cable (5) is symmetrically set.

5. The post-cast strip support device according to claim 1, characterized in that: The bottom apex of the steel cable (11) and the top apex of the steel cable (5) are set in the same plane, and the steel cable (5) and the steel cable (11) are mirror images of each other. The inner surface of the steel cable (11) is closely attached to the arc-shaped outer wall of the bottom bar-shaped steel bar (1) of the two sets of steel cages that are close to each other.

6. The post-cast strip support device according to claim 1, characterized in that: An embedding groove (15) is provided on the arc-shaped outer wall of the sleeve wheel (6) and the auxiliary wheel (12). A toothed ring (16) is fixedly installed on the inner surface of the left and right sides of the embedding groove (15). The embedding groove (15) is located at the central axis of the sleeve wheel (6) and the auxiliary wheel (12).

7. A post-cast strip support device according to claim 6, characterized in that: The number of toothed rings (16) is set in two sets, and the two sets of toothed rings (16) are mirror images of each other on the left and right sides of the embedding groove (15). The toothed side of the toothed ring (16) faces the center side of the embedding groove (15). The outer wall of the toothed ring (16) is provided with a number of contact teeth, and the surface of the contact teeth is provided with a rubber layer.

8. A post-cast strip support device according to claim 1, characterized in that: A reinforcing ring (17) is fixedly installed on the arc-shaped outer wall of the upper main rod (4). The reinforcing ring (17) is embedded in the gap between the arc plate (9) and the upper main rod (4) and is fixed by welding. There are multiple sets of reinforcing rings (17), and the multiple sets of reinforcing rings (17) are respectively located at the end of the upper main rod (4) and the side of the sleeve wheel (6).

9. A post-cast strip support device according to claim 1, characterized in that: The lower main rod (7), lower main rod (8), lower auxiliary rod (10), upper auxiliary rod (13) and upper auxiliary rod (14) are all provided with reinforcing rings (17) on their arc-shaped outer walls.

10. A construction method for a post-cast strip support device as described in any one of claims 1 to 9, characterized in that: Includes the following steps: S1. Clean the reserved position of the post-pouring strip, and place the two sets of steel cages parallel to the reserved position and put them into the reserved position. S2. Place the lower main rod 1 (7) and the lower main rod 2 (8) at the bottom of the two sets of steel cages respectively, and insert the sleeve wheel (6) into the upper main rod (4), the lower main rod 1 (7) and the lower main rod 2 (8) respectively; S3. Spot welding is performed on the contact positions of the sleeve wheel (6) with the upper main rod (4), the lower main rod one (7) and the lower main rod two (8); S4. Take a section of steel cable (5) and wrap it around the arc-shaped outer wall of the sleeve wheel (6) fitted on the upper main rod (4), the lower main rod one (7) and the lower main rod two (8), so that the steel cable (5) forms a triangle, and spot weld the contact position between the steel cable (5) and the contact bar (1); S5. Place the lower auxiliary rod (10) on the ground below the upper main rod (4), and use the steel cable (11) to wrap the lower auxiliary rod (10), upper auxiliary rod one (13) and upper auxiliary rod two (14) with the auxiliary wheel (12) on the arc-shaped outer wall to form an inverted triangle. Use the same method as in S4 to spot weld the contact part between the steel cable (11) and the bar steel (1). S6. Adjust the positional spacing between the steel cables (5) and steel slings (11) arranged in a triangle to ensure that the spacing between them is the same, and then erect the reinforcing steel structure of the cast strip; S7. Concrete is poured at the reserved position of the post-cast strip to complete the construction work of the post-cast strip.

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