Bridge vertical prestress steel strand fixing device

Abstract

The utility model discloses a bridge vertical prestress steel strand fixing device, and relates to the technical field of bridge construction, in particular to a bridge vertical prestress steel strand fixing device which comprises an anchoring end base plate and a fixing base plate, a connecting round hole is formed in the middle of the anchoring end base plate, a screw rod is inserted into the connecting round hole, and the fixing base plate is fixedly connected with the anchoring end base plate. A nut is arranged at one end of the screw, the outer surface of the screw is sleeved with a gasket, a thread is arranged at the end, away from the nut, of the screw, the outer surface of the thread is in threaded connection with a nut, a fixing round hole is formed in the middle of the fixing base plate, the position of the fixing round hole is matched with the position of the connecting through hole, and the connecting through hole is formed in the anchoring end base plate. According to the fixing device for the vertical prestressed steel strand of the bridge, the anchoring end base plate, the fixing base plate, the screw rod, the nut and the extrusion anchor are arranged in a matched mode, the vertical prestressed steel strand can be rapidly installed and fixed, meanwhile, the accuracy of the position of the vertical prestressed steel strand is guaranteed, and the purposes of saving energy, reducing consumption, improving quality and improving efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a fixing device for vertical prestressed steel strands of a bridge. Background Technique

[0002] A bridge generally refers to a structure erected over rivers, lakes and seas, enabling vehicles, pedestrians, etc. to pass smoothly. In order to adapt to the modern rapidly developing transportation industry, bridges now also refer to buildings erected across mountain streams, poor geological conditions or to meet other traffic needs to make passage more convenient. Bridge construction is the process of building a bridge according to the design content, mainly referring to bridge construction technology, construction organization, construction management, construction quality, etc.

[0003] During the vertical prestress construction of a bridge, it is necessary to pre-embed vertical prestressed steel strands in advance. However, since the anchorage end of the steel strand is located in the middle of the structure and there is no support below the extrusion anchor, the whole steel strand is in a suspended state. Relying solely on the prestress positioning bars is not enough to support the steel strand, and the problem of the steel strand sagging cannot be solved. To solve this problem, a fixing device for vertical prestressed steel strands is designed and manufactured. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a fixing device for vertical prestressed steel strands of a bridge, which solves the problems put forward in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A fixing device for vertical prestressed steel strands of a bridge includes an anchorage end backing plate and a fixing backing plate. A connecting round hole is opened in the middle of the anchorage end backing plate. A screw rod is inserted into the connecting round hole. A nut is arranged at one end of the screw rod. A gasket is sleeved on the outer surface of the screw rod. A thread is opened at the end of the screw rod far from the nut. A nut is threadedly connected to the outer surface of the thread. A fixing round hole is opened in the middle of the fixing backing plate. The position of the fixing round hole is adapted to the position of the connecting through hole. A connecting through hole is opened in the anchorage end backing plate. A steel strand is inserted into the connecting through hole. One end of the steel strand is anchored and connected with an extrusion anchor. The extrusion anchor is located between the anchorage end backing plate and the fixing backing plate.

[0006] Optionally, a fixing through hole is opened in the fixing backing plate, and the position of the fixing through hole is adapted to the position of the connecting through hole.

[0007] Optionally, the number of the fixing through holes and the connecting through holes is three each, and they are evenly distributed inside the anchorage end backing plate and the fixing backing plate.

[0008] Optionally, the length and width of the fixing backing plate are both 8 cm, and the thickness is 2 - 3 mm. The size of the anchorage end backing plate is larger than that of the fixing backing plate.

[0009] Optionally, the diameters of the connecting round hole and the fixing round hole are 5 mm.

[0010] Optionally, the material of the fixing backing plate is steel plate.

[0011] Optionally, the size of the extrusion anchor is larger than the size of the connecting through hole.

[0012] The utility model provides a fixing device for vertical prestressed steel strands of a bridge, which has the following beneficial effects:

[0013] In the fixing device for vertical prestressed steel strands of the bridge, through the cooperative setting of the anchoring end backing plate, the fixing backing plate, the screw rod, the nut and the extrusion anchor, during the use process, after the anchored steel strands are passed through the connecting through holes of the anchoring end backing plate, the fixing backing plate is abutted against the lower end of the extrusion anchor. Subsequently, the screw rod passes through the connecting round hole of the anchoring end backing plate and the fixing round hole of the fixing backing plate. Then, the gasket is sleeved on the threaded end of the screw rod and abutted against the bottom surface of the fixing gasket. Subsequently, the nut is threadedly connected to the screw rod while squeezing the gasket. Through the connection of the screw rod, the anchoring end backing plate and the fixing backing plate are connected into a whole, so that the vertical prestressed steel strands can be installed and fixed relatively quickly, and at the same time, the accuracy of the position of the vertical steel strands is ensured, achieving the purposes of energy conservation, consumption reduction, quality improvement and efficiency increase. Description of the Drawings

[0014] Figure 1 is the front view structural schematic diagram of the utility model;

[0015] Figure 2 is the three-dimensional structural schematic diagram of the side view of the utility model;

[0016] Figure 3 is the three-dimensional structural schematic diagram of the bottom view of the utility model;

[0017] Figure 4 is the three-dimensional structural schematic diagram of the utility model.

[0018] In the figure: 1, anchoring end backing plate; 2, fixing backing plate; 3, screw rod; 4, nut; 5, gasket; 6, thread; 7, nut; 8, steel strand; 9, extrusion anchor. Specific Embodiments

[0019] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Embodiment

[0020] A fixing device for the vertical prestressed steel strand 8 of a bridge, comprising an anchoring end backing plate 1 and a fixing backing plate 2. A connecting round hole is provided in the middle of the anchoring end backing plate 1, a screw rod 3 is inserted into the inside of the connecting round hole, a nut 4 is arranged at one end of the screw rod 3, a gasket 5 is sleeved on the outer surface of the screw rod 3, a thread 6 is provided at the end of the screw rod 3 away from the nut 4, and a nut 7 is threadedly connected to the outer surface of the thread 6. A fixing round hole is provided in the middle of the fixing backing plate 2, and the position of the fixing round hole is adapted to the position of the connecting through hole. A connecting through hole is provided in the inside of the anchoring end backing plate 1, and the steel strand 8 is inserted into the inside of the connecting through hole. One end of the steel strand 8 is anchored and connected with an extrusion anchor 9, and the extrusion anchor 9 is located between the anchoring end backing plate 1 and the fixing backing plate 2. A fixing through hole is provided in the inside of the fixing backing plate 2, and the position of the fixing through hole is adapted to the position of the connecting through hole. The number of the fixing through holes and the connecting through holes is three, and they are evenly distributed in the inside of the anchoring end backing plate 1 and the fixing backing plate 2. The length and width of the fixing backing plate 2 are both 8 cm, and the thickness is 2-3 mm. The size of the anchoring end backing plate 1 is larger than that of the fixing backing plate 2. The diameters of the connecting round hole and the fixing round hole are 5 mm. The material of the fixing backing plate 2 is steel plate, and the size of the extrusion anchor 9 is larger than that of the connecting through hole.

[0021] In order to achieve the quick installation and fixation of the vertical prestressed steel strand 8, and at the same time ensure the accuracy of the position of the vertical steel strand 8, so as to achieve the purpose of energy conservation, consumption reduction, quality improvement and efficiency increase. As shown in the appendix Figures 1-4 As shown, the present application adopts the following structure. Through the cooperative setting of the anchoring end backing plate 1, the fixing backing plate 2, the screw rod 3 and the nut 7, during the use process, after the anchored steel strand 8 is inserted into the connecting through hole of the anchoring end backing plate 1, the fixing backing plate 2 is abutted against the lower end of the extrusion anchor 9. Subsequently, the screw rod 3 is passed through the connecting round hole of the anchoring end backing plate 1 and the fixing round hole of the fixing backing plate 2. Then, the gasket 5 is sleeved on the threaded end of the screw rod 3 and abutted against the bottom surface of the fixing gasket 5. Subsequently, the nut 7 is threadedly connected to the screw rod 3 while squeezing the gasket 5. Through the connection of the screw rod 3, the anchoring end backing plate 1 and the fixing backing plate 2 are connected into a whole, so that the vertical prestressed steel strand 8 will not drop during the installation process and can be accurately installed and positioned.

[0022] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A vertical prestressed steel strand fixing device for a bridge, comprising an anchor end pad and a fixing pad, characterized in that: A connecting circular hole is provided in the middle of the anchor end pad, a screw is inserted into the connecting circular hole, a nut is provided at one end of the screw, a gasket is sleeved on the outer surface of the screw, a thread is provided at the end of the screw away from the nut, a nut is threadedly connected to the outer surface of the thread, a fixing circular hole is provided in the middle of the fixing pad, the position of the fixing circular hole is matched with the position of the connecting through hole, a connecting through hole is provided inside the anchor end pad, a steel strand is inserted into the connecting through hole, one end of the steel strand is anchored and connected to an extrusion anchor, and the extrusion anchor is located between the anchor end pad and the fixing pad.

2. A vertical prestressed steel strand fixing device for a bridge according to claim 1, characterized in that: A fixing through hole is provided inside the fixing pad, and the position of the fixing through hole matches the position of the connecting through hole.

3. A vertical prestressed steel strand fixing device for a bridge according to claim 2, characterized in that: The number of the fixing through holes and the connecting through holes is three, and they are evenly distributed inside the anchoring end pad and the fixing pad.

4. The vertical prestressed steel strand fixing device for a bridge according to claim 1 is characterized in that: The length and width of the fixed pad are both 8 cm, and the thickness is 2-3 mm. The size of the anchor end pad is larger than that of the fixed plate pad.

5. The vertical prestressed steel strand fixing device for bridges according to claim 1 is characterized in that: The diameters of the connecting circular holes and the fixing circular holes are 5 mm.

6. The vertical prestressed steel strand fixing device for bridges according to claim 1 is characterized in that: The material of the fixing pad is a steel plate.

7. The vertical prestressed steel strand fixing device for a bridge according to claim 1 is characterized in that: The size of the extrusion anchor is larger than the size of the connecting through hole.

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