Fabricated precast beam tensioning support device

Abstract

The utility model discloses an assembly type precast beam tensioning support device which comprises a support body, the support body is of a vertical frame structure, the support body is a vertical frame formed by detachably connecting stand columns and horizontal connecting rods in a lap joint mode, an access opening is reserved in the front end of the support body, and a baffle is arranged at the rear end of the support body. A horizontal sliding rail extending front and back is arranged in the middle of the top end of the support body, a hoist lifting device is arranged on the horizontal sliding rail in a sliding mode and used for lifting a tensioning jack, a tensioning operation platform is arranged at the lower end of the interior of the support body, and a containing groove used for containing the tensioning jack is formed in the tensioning operation platform in a sinking mode. The tensioning jack can be hoisted through the hoist hoisting device, rapid adjustment of the tensioning jack is achieved, the tensioning construction speed of a precast beam body is increased, the overall stability is high, disassembly and assembly are convenient, the baffle on the rear side can effectively prevent steel strands from breaking and flying out to hurt people, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge prefabricated beam construction, in particular to an assembled prefabricated beam tensioning bracket device. Background Art

[0002] At present, with the rapid development of infrastructure construction in my country, bridge construction applications in municipal, highway, and railway fields are increasing, and prestressed precast beams are becoming increasingly common in bridge design. During the tensioning operation, the tensioning jacks for prestressed steel bars are bulky and inconvenient to operate. The height of the tensioning jacks is difficult to adjust in time, and the safety factor is low, which slows down the tensioning construction of precast beams. Chinese patent CN201420729465.6 proposes a precast beam tensioning bracket. Although this bracket can lift the tensioning jacks, it has poor structural stability, is inconvenient to disassemble and assemble, and is difficult for workers to operate. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the present invention aims to provide an assembled prefabricated beam tensioning support device to solve the problems of poor structural stability and inconvenient assembly and disassembly of the existing tensioning support.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes an assembled prefabricated beam tensioning support device, including a support body, the support body is a vertical frame structure, the support body is a vertical frame composed of detachable columns and horizontal connecting rods, the front end of the support body is provided with an entrance and exit, the rear end of the support body is provided with a baffle, the top middle part of the support body is provided with a horizontal slide rail extending forward and backward, a hoist hoist is slidably provided on the horizontal slide rail, the hoist hoist is used to lift the tensioning jack, the lower end of the interior of the support body is provided with a tensioning operating platform, and the tensioning operating platform is provided with a sunken storage groove for placing the tensioning jack.

[0005] In the above scheme, four uprights are provided and arranged in a rectangular pattern. The horizontal connecting rods are detachably connected to the uprights and include longitudinal and transverse connecting rods. The two left uprights are connected by two longitudinal connecting rods spaced one above the other. The two right uprights are also connected by two longitudinal connecting rods spaced one above the other. The two rear uprights are connected by three transverse connecting rods spaced one above the other, one of which is located at the top of the two uprights. The tops of the two front uprights are also connected by a transverse connecting rod, with the entrance and exit located below this transverse connecting rod. The vertical rectangular frame structure composed of four uprights and multiple horizontal connecting rods has good overall stability and a strong load-bearing capacity.

[0006] In the above scheme: connecting plates are welded at the position where the horizontal connecting rod is connected to the column and at the position where the column is connected to the horizontal connecting rod. The two connecting plates at the corresponding positions are fixed by bolts, thereby realizing a detachable connection between the horizontal connecting rod and the column. The structure is simple and the processing is convenient.

[0007] In the above scheme, the horizontal rail is installed between the two transverse horizontal connecting rods on the top layer. The horizontal rail and the corresponding positions of the transverse horizontal connecting rods are also detachably connected by two connecting plates. The tensioning operation platform is installed between the two longitudinal horizontal connecting rods on the lower layer, near the rear end of the longitudinal horizontal connecting rods. This makes the horizontal rail easy to install and remove, and the tensioning operation platform easy to deploy.

[0008] In the above scheme: three horizontal stiffening rods are arranged at intervals between the upper horizontal connecting rods and the lower horizontal connecting rods of the two rear columns. The horizontal stiffening rods are welded to the columns to enhance the stability of the device.

[0009] In the above solution: a buffer pad is arranged on the front end surface of the baffle, and the buffer pad is clamped between the baffle and the horizontal stiffening rod. The buffer pad can be used to buffer flying steel strands, etc., to further ensure construction safety.

[0010] In the above scheme: the tops of the four columns are equipped with lifting rings to facilitate the lifting of the tensioning bracket device.

[0011] The beneficial effects of the utility model are:

[0012] 1. The original bridge prefabricated beam tensioning construction speed is slow, and the jack is difficult to install and disassemble. This device can lift the tensioning jack through the hoist hoist, realize the rapid adjustment of the tensioning jack, and speed up the prefabricated beam tensioning construction speed; 2. This device is a vertical frame structure with high overall stability. The baffle on the rear side can effectively prevent the steel strand from breaking and flying out to injure people, and it is highly safe. In addition, this device is an assembled structure, and the bracket body and other components can be transported to the construction site and assembled and installed on site. This device can be disassembled and assembled many times and can be reused. It has high installation efficiency and saves time and effort. 3. The inside of the device is also equipped with a construction platform to facilitate workers' construction. The construction platform is provided with a storage slot for the tensioning jack. When the device is moved, the storage slot can store the tensioning jack to prevent it from shaking and prevent safety problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] Figure 2 yes Figure 1 Schematic diagram from another angle. DETAILED DESCRIPTION

[0015] like Figure 1 As shown in FIG. 2 , an assembled prefabricated beam tensioning support device includes a support body. The support body is a vertical frame structure. The support body is a vertical frame composed of a column 1 and a horizontal connecting rod 2 that can be detachably overlapped.

[0016] The front end of the bracket body is provided with an entrance and exit, the rear end of the bracket body is provided with a baffle 3, and the top middle part of the bracket body is provided with a horizontal slide rail 4 extending forward and backward. A hoist hoist 5 is slidably provided on the horizontal slide rail 4, and the hoist hoist 5 is used to lift the tensioning jack.

[0017] The lower end of the bracket body is provided with a tensioning operation platform 6 for the convenience of workers. The tensioning operation platform 6 is provided with a storage slot 61 for placing the tensioning jack. When the device is moved, the storage slot 61 can store the tensioning jack to prevent it from shaking and prevent safety problems.

[0018] Preferably, four uprights 1 are provided, arranged in a rectangular pattern. Horizontal connecting rods 2 are detachably connected to the uprights 1 and comprise longitudinal horizontal connecting rods 21 and transverse horizontal connecting rods 22. The two left uprights 1 are connected by two longitudinal horizontal connecting rods 21 spaced one above the other; the two right uprights 1 are also connected by two longitudinal horizontal connecting rods 21 spaced one above the other; the two rear uprights 1 are connected by three transverse horizontal connecting rods 22 spaced one above the other, one of which is located at the top of the two uprights 1; and the tops of the two front uprights 1 are also connected by a transverse horizontal connecting rod 22, with the entrance and exit located below this transverse horizontal connecting rod 22. The vertical rectangular frame structure, composed of four uprights 1 and multiple horizontal connecting rods 2, offers excellent overall stability and a strong load-bearing capacity.

[0019] Preferably, connecting plates 7 are welded at the position where the horizontal connecting rod 2 is connected to the column 1 and at the position where the column 1 is connected to the horizontal connecting rod 2. The two connecting plates 7 at the corresponding positions are connected and fixed by bolts 8, thereby realizing a detachable connection between the horizontal connecting rod 2 and the column 1, with a simple structure and easy processing.

[0020] Preferably, the horizontal rail 4 is positioned between the two transverse horizontal connecting rods 22 on the top layer. The corresponding positions of the horizontal rail 4 and the transverse horizontal connecting rods 22 are also detachably connected via two connecting plates 7. The tensioning operation platform 6 is positioned between the two longitudinal horizontal connecting rods 21 on the lower layer, near the rear ends of the longitudinal horizontal connecting rods 21. This allows for easy assembly and disassembly of the horizontal rail 4, and for easy deployment of the tensioning operation platform 6.

[0021] Preferably, three horizontal stiffening rods 23 are arranged between the upper horizontal connecting rods 22 and the lower horizontal connecting rods 22 of the two rear columns 1. The horizontal stiffening rods 23 are welded to the columns 1 to enhance the stability of the device.

[0022] Preferably, a buffer pad is provided on the front end surface of the baffle 3, and the buffer pad is clamped between the baffle 3 and the horizontal stiffening rod 23. The buffer pad can be used to cushion the flying steel strands, etc., to further ensure construction safety.

[0023] Preferably, the tops of the four columns 1 are all provided with lifting rings 9 to facilitate lifting the tensioning bracket device.

Claims

1. An assembled prefabricated beam tensioning support device, comprising a support body, wherein the support body is a vertical frame structure, characterized in that: The support body is a vertical frame composed of a column (1) and a horizontal connecting rod (2) that are detachably connected. An entrance and exit are left at the front end of the support body, a baffle (3) is provided at the rear end of the support body, and a horizontal slide rail (4) extending forward and backward is provided at the middle of the top end of the support body. A hoist (5) is slidably provided on the horizontal slide rail (4). The hoist (5) is used to lift the tensioning jack. A tensioning operation platform (6) is provided at the lower end of the interior of the support body. The tensioning operation platform (6) is provided with a storage groove (61) for placing the tensioning jack in an up-down manner.

2. The assembled prefabricated beam tensioning bracket device according to claim 1, characterized in that: The columns (1) are provided with four and are distributed in a rectangular shape. The horizontal connecting rods (2) are detachably connected to the columns (1) and include longitudinal horizontal connecting rods (21) and transverse horizontal connecting rods (22). The two columns (1) on the left are connected by two longitudinal horizontal connecting rods (21) spaced apart one above the other. The two columns (1) on the right are also connected by two longitudinal horizontal connecting rods (21) spaced apart one above the other. The two columns (1) on the rear are connected by three transverse horizontal connecting rods (22) spaced apart one above the other, one of which is located at the top of the two columns (1). The tops of the two columns (1) on the front are also connected by a transverse horizontal connecting rod (22), and the entrance and exit are located below the transverse horizontal connecting rod (22).

3. The assembled prefabricated beam tensioning bracket device according to claim 2, characterized in that: Connecting plates (7) are welded to the position where the horizontal connecting rod (2) is connected to the column (1) and the position where the column (1) is connected to the horizontal connecting rod (2). The two connecting plates (7) at the corresponding positions are connected and fixed by bolts (8), thereby realizing a detachable connection between the horizontal connecting rod (2) and the column (1).

4. The assembled prefabricated beam tensioning bracket device according to claim 3, characterized in that: The horizontal slide rail (4) is arranged between the two transverse horizontal connecting rods (22) on the top layer, and the corresponding positions of the horizontal slide rail (4) and the transverse horizontal connecting rod (22) are also detachably connected through two connecting plates (7); the tensioning operation platform (6) is arranged between the two longitudinal horizontal connecting rods (21) on the lower layer, and is arranged close to the rear end of the longitudinal horizontal connecting rod (21).

5. The assembled prefabricated beam tensioning bracket device according to claim 2, characterized in that: Three horizontal stiffening rods (23) are arranged at intervals between the upper horizontal connecting rods (22) and the lower horizontal connecting rods (22) of the two rear columns (1), and the horizontal stiffening rods (23) are welded to the columns (1).

6. The assembled prefabricated beam tensioning bracket device according to claim 5, characterized in that: A buffer pad is arranged on the front end surface of the baffle (3), and the buffer pad is clamped between the baffle (3) and the horizontal stiffening rod (23).

7. The assembled prefabricated beam tensioning bracket device according to claim 2, characterized in that: The top ends of the four upright posts (1) are all provided with hanging rings (9).

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