Supporting structure of high-strength concrete beam concave type end post-tensioning device

Abstract

The utility model discloses a supporting structure of a high-strength concrete beam concave type end post-tensioning device, which comprises a bottom plate, a plurality of stacked reinforcing supporting pieces and a top sleeve, the bottom plate is fixedly connected to the bottom of the lowermost reinforcing supporting piece, the top sleeve is arranged on the top of the uppermost reinforcing supporting piece, and the reinforcing supporting pieces are fixedly connected to the bottom of the lowermost reinforcing supporting piece. A mounting bracket for fixing a tensioning jack is further mounted above the top sleeve, and moving wheels are fixedly mounted at the four corners of the bottom of the bottom plate. The supporting structure of the high-strength concrete beam concave end post-tensioning device is reasonable in design and convenient to use, the combined design is adopted, the supporting height of the tensioning device can be adjusted according to the construction height of a concrete beam to be subjected to end post-tensioning, and therefore the supporting structure has the wide application range and the use flexibility, the dismounting and mounting efficiency is high, and the practicability is high. And meanwhile, the supporting stability can be guaranteed through the multiple sets of reinforcing structures, damage is not prone to occurring, and the use requirements can be comprehensively met.

Description

Technical Field

[0001] This utility model relates to the technical field of tensioning support equipment, specifically the support structure of a high-strength concrete beam concave end post-tensioning device. Background Technology

[0002] A reinforced concrete beam is a beam made of reinforced concrete. Reinforced concrete beams can be constructed as independent beams, integral with reinforced concrete slabs to form beam-slab floor systems, or integral with reinforced concrete columns to form single-story or multi-story frames. Reinforced concrete beams come in various forms and are the most basic load-bearing components in building construction, bridge construction, and other engineering structures. Currently, when using post-tensioning methods to tension concrete beams, tensioning jacks are always used, and these jacks also require matching support devices.

[0003] A search revealed a patent document CN201620885829.9 which discloses "a support device for prestressing tensioning of the bottom surface of a cap beam," comprising a bracket. The front end of the bracket is connected to the telescopic end of a jack II via a hinge II, and the rear end of the bracket is connected to a movable crossbeam via a hinge I. Its advantages are: simple structure, convenient operation, saving manpower and material resources, safety and stability, and high construction efficiency.

[0004] This patent uses two jacks to adjust the angle of the tensioning jacks. However, during the tensioning of concrete beams, the beam heights vary, so it is necessary to raise the position of the tensioning jacks. This patent only uses jacks to make slight adjustments to the height and angle, which obviously cannot meet different construction needs. Therefore, we propose a support structure for a high-strength concrete beam concave end-post tensioning device to solve the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to provide a support structure for a high-strength concrete beam concave end post-tensioning device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a support structure for a high-strength concrete beam concave end post-tensioning device, comprising a base plate, several stacked reinforcing support members and a top sleeve, wherein the base plate is fixedly connected to the bottom of the lowest reinforcing support member, the top sleeve is installed on the top of the highest reinforcing support member, and an installation support frame for fixing the tensioning jack is also installed above the top sleeve, and movable wheels are fixedly installed at the four corners of the bottom of the base plate.

[0007] Furthermore, the reinforcing support includes a central column and four outer support rods. The four outer support rods are arranged equidistantly around the central column. A reinforcing diagonal rod is installed between the central column and the outer support rods. A reinforcing crossbar is welded between two adjacent outer support rods. The top ends of the central column and the outer support rods are respectively integrally formed with a first connector and a second connector.

[0008] Furthermore, the outer support rod has a beveled groove on one side corresponding to the central column, and the two ends of the reinforcing diagonal rod are welded to the beveled groove and the central column, respectively.

[0009] Furthermore, the bottom ends of the central column and the outer support rod are respectively provided with a first connecting hole and a second connecting hole that are adapted to the first connector and the second connector.

[0010] Furthermore, a first locking member is installed on the surface of the outer support rod at the position corresponding to the second connecting hole, and a first locking hole adapted to the first locking member is opened on the outer side of the second connector.

[0011] Furthermore, a second locking member is installed on the outer side of the top sleeve corresponding to the position of the outer support rod, and a second locking hole adapted to the second locking member is opened on the surface of the outer support rod.

[0012] Furthermore, the top of the inner wall of the top sleeve is provided with a first receiving hole and a second receiving hole corresponding to the positions of the first connector and the second connector, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention fixes the tensioning device used for tensioning concrete beams, namely the tensioning jack, onto the installation support frame. Based on the actual construction height of the concrete beam, multiple reinforcing supports can be used to vertically erect the support structure. During operation, the first connector, second connector, first connecting hole, and second connecting hole are used to connect the upper and lower sets of central columns and outer struts. After vertical erection, the first locking pieces on the surfaces of the multiple outer struts are rotated to form connections with the first locking holes, thereby achieving relative fixation of the upper and lower reinforcing supports. When the predetermined height is reached, the top sleeve is placed on top. The top of the support component is reinforced, and the top sleeve is fixed by using the second locking component and the second locking hole. The tensioning jack can then be moved by the components above the top sleeve to achieve end-to-end tensioning of the concrete beam. The support structure of this high-strength concrete beam concave end-to-end tensioning device is reasonably designed and easy to use. The modular design allows for adjustment of the support height of the tensioning device according to the construction height of the concrete beam to be tensioned, thus giving it a wide range of applications and flexibility. It is also highly efficient in assembly and disassembly, convenient for transportation, and the multiple sets of reinforcing structures ensure support stability and prevent damage, fully meeting the usage requirements. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a first three-dimensional structural diagram of the reinforcing support component of this utility model;

[0017] Figure 3 This is a schematic diagram of the second three-dimensional structure of the reinforcing support component of this utility model;

[0018] Figure 4 This is a bottom view of the top sleeve of this utility model.

[0019] In the diagram: 1. Base plate, 2. Reinforcing support, 21. Central column, 22. External support rod, 23. Reinforcing diagonal rod, 24. Reinforcing crossbar, 25. First connector, 26. Second connector, 27. First connecting hole, 28. Second connecting hole, 29. First locking component, 210. First locking hole, 211. Second locking hole, 3. Top sleeve, 4. Mounting support frame, 5. Second locking component, 6. First receiving hole, 7. Second receiving hole, 8. Rectangular frame, 9. Fixed shaft, 10. Rotating support plate, 11. Lifting jack. Detailed Implementation

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

[0021] Please see Figure 1-4 The support structure for the concave-end post-tensioning device of a high-strength concrete beam includes a base plate 1, several stacked reinforcing support members 2, and a top sleeve 3. The base plate 1 is fixedly connected to the bottom of the lowest reinforcing support member 2, and the top sleeve 3 is installed on the top of the highest reinforcing support member 2. An installation support frame 4 for fixing the tensioning jack is also installed above the top sleeve 3. Moving wheels are fixedly installed at the four corners of the bottom of the base plate 1. The moving wheels are swivel wheels with foot brakes, allowing rotation during transportation and locking during operation to improve the stability of the overall structure. A rectangular frame 8 is symmetrically installed on the top of the sleeve 3. A fixed shaft 9 is welded between the two rectangular frames 8. A rotating support plate 10 is rotatably connected to the fixed shaft 9. A mounting support 4 is welded to the top of the rotating support plate 10. A lifting jack 11 is also fixedly installed on the top of the sleeve 3. The driving end of the lifting jack 11 is rotatably connected to the rotating support plate 10. By starting the lifting jack 11 and cooperating with the connection of the fixed shaft 9, the rotating support plate 10, the mounting support 4 and the tensioning jack on it can be driven to rotate, so as to realize the end tensioning of the concrete beam.

[0022] Specifically, the reinforcing support 2 includes a central column 21 and four outer support rods 22. The four outer support rods 22 are arranged equidistantly around the central column 21. A reinforcing diagonal rod 23 is installed between the central column 21 and the outer support rods 22. A reinforcing crossbar 24 is welded between two adjacent outer support rods 22. The central column 21, outer support rods 22, reinforcing diagonal rods 23 and reinforcing crossbars 24 are all made of steel, which gives the overall support structure a certain strength. The top of the central column 21 and the outer support rods 22 are respectively integrally formed with a first connector 25 and a second connector 26.

[0023] Specifically, the outer support rod 22 has a beveled groove on one side corresponding to the central column 21. The two ends of the reinforcing diagonal rod 23 are welded to the beveled groove and the central column 21 respectively. The number of reinforcing diagonal rods 23 connected between the central column 21 and any one of the outer support rods 22 is two, and the two reinforcing diagonal rods 23 are arranged in a V-shape to form a relatively stable triangular support structure and improve stability.

[0024] Specifically, the bottom ends of the central column 21 and the outer support rod 22 are respectively provided with a first connecting hole 27 and a second connecting hole 28 that are adapted to the first connector 25 and the second connector 26. By using the first connector 25 and the second connector 26 in conjunction with the first connecting hole 27 and the second connecting hole 28, the initial assembly of the upper and lower sets of reinforcing support members 2 can be formed.

[0025] Specifically, a first locking member 29 is installed on the surface of the outer support rod 22 at the position corresponding to the second connecting hole 28. A first locking hole 210 adapted to the first locking member 29 is opened on the outer side of the second connector 26. The first locking member 29 adopts a threaded sleeve and a screw adapted to the threaded sleeve. After rotating the screw, its end is screwed into the first locking hole 210, thus forming an anti-detachment connection between the upper and lower sets of reinforcing support members 2.

[0026] Specifically, a second locking member 5 is installed on the outer side of the top sleeve 3 at the position corresponding to the outer support rod 22. The surface of the outer support rod 22 is provided with a second locking hole 211 that matches the second locking member 5. Similarly, the second locking member 5 also uses a threaded sleeve and matching screws to form an anti-detachment connection between the top sleeve 3 and the uppermost reinforcing support member 2.

[0027] Specifically, the top of the inner wall of the top sleeve 3 is provided with a first receiving hole 6 and a second receiving hole 7 corresponding to the positions of the first connector 25 and the second connector 26, respectively.

[0028] The support structure of this high-strength concrete beam concave end-post-tensioning device is reasonably designed and easy to use. The modular design allows for adjustment of the support height of the tensioning device according to the construction height of the concrete beam to be post-tensioned, thus giving it a wide range of applications and flexibility. It is also highly efficient in disassembly and assembly, and easy to transport. At the same time, multiple sets of reinforcing structures can also ensure the stability of the support and prevent damage, thus fully meeting the usage requirements.

[0029] In use, the tensioning device used for tensioning the concrete beam, namely the tensioning jack, is fixed on the installation support 4. According to the actual construction height of the concrete beam, multiple reinforcing support members 2 can be used to vertically erect the support structure. During operation, the first connector 25, the second connector 26, the first connecting hole 27, and the second connecting hole 28 are used to connect the upper and lower sets of central columns 21 and outer support rods 22. After vertical erection, the first locking member 29 on the surface of the multiple outer support rods 22 is rotated to form a connection with the first locking hole 210, thereby achieving relative fixation of the upper and lower reinforcing support members 2. When erected to the predetermined height, the top sleeve 3 is placed on top of the uppermost reinforcing support member 2, and the second locking member 5 is used in conjunction with the second locking hole 211 to fix the top sleeve 3. The tensioning jack can then be moved by controlling the components above the top sleeve 3 to achieve end tensioning of the concrete beam.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A supporting structure of a concave end post-tensioning device in a high-strength concrete beam, comprising a bottom plate (1), a plurality of stacked reinforcing support members (2) and a top sleeve (3), characterized in that: The bottom plate (1) is fixedly connected at the bottom of the lowermost reinforcing support (2), the top sleeve (3) is installed at the top of the uppermost reinforcing support (2), an installation support frame (4) for fixing a tensioning jack is further installed above the top sleeve (3), and a movable wheel is fixedly installed at each corner of the bottom of the bottom plate (1).

2. The support structure for the concave end post-tensioning device of high-strength concrete beams according to claim 1, characterized in that: The reinforcing support (2) comprises a middle column (21) and four outer support rods (22), the four outer support rods (22) are arranged at equal distances around the middle column (21) as the center, a reinforcing inclined rod (23) is installed between the middle column (21) and the outer support rod (22), and reinforcing cross rods (24) are welded between two adjacent outer support rods (22), and the top ends of the middle column (21) and the outer support rod (22) are integrally formed with a first connecting head (25) and a second connecting head (26), respectively.

3. The support structure for the recessed end post-tensioning device of a high-strength concrete beam according to claim 2, characterized in that: The outer support rod (22) is provided with a bevel groove on one side corresponding to the middle column (21), and the two ends of the reinforcing inclined rod (23) are welded with the bevel groove and the middle column (21), respectively.

4. The support structure for the concave end post-tensioning device of a high-strength concrete beam according to claim 3, characterized in that: The bottom ends of the middle column (21) and the outer support rod (22) are provided with a first connecting jack (27) and a second connecting jack (28) matched with the first connecting head (25) and the second connecting head (26), respectively.

5. The support structure for the concave end post-tensioning device of a high-strength concrete beam according to claim 4, characterized in that: The outer support rod (22) is provided with a first locking member (29) on the surface corresponding to the position of the second connecting jack (28), and the outer side of the second connecting head (26) is provided with a first locking hole (210) matched with the first locking member (29).

6. The support structure for the recessed end post-tensioning device of a high-strength concrete beam according to claim 5, characterized in that: The outer side of the top sleeve (3) is provided with a second locking member (5) corresponding to the position of the outer support rod (22), and the surface of the outer support rod (22) is provided with a second locking hole (211) matched with the second locking member (5).

7. The support structure for the recessed end post-tensioning device of a high-strength concrete beam according to claim 6, characterized in that: The inner wall of the top sleeve (3) is provided with a first accommodating hole (6) and a second accommodating hole (7) matched with the positions of the first connecting head (25) and the second connecting head (26), respectively.

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