Temporary prestress tensioning and anchoring device for segmental beam

Abstract

The utility model belongs to the field of anchoring devices, and particularly relates to a temporary prestressed tensioning and anchoring device for a segmental beam, which comprises a device main body, the upper surface of the device main body is fixedly connected with a mounting device, the mounting device comprises a mounting base plate, and the bottom surface of the mounting base plate is fixedly connected with the upper surface of the device main body; a trigger plate is slidably connected to the inner wall of the mounting base plate, the bottom face of the trigger plate is fixedly connected with the upper surface of a reed, and the bottom face of the reed is fixedly connected with the inner wall of the mounting base plate. According to the temporary prestress tensioning and anchoring device for the segmental beam, through the arranged steel noose, when the longitudinal anchoring distance of the steel noose is increased, a force arm can be lengthened, the anti-overturning moment of a variable-cross-section continuous beam can be increased, temporary supports are arranged on the two sides of the pier column, the overturning force arm is reduced, the overturning moment can be effectively reduced, and the cantilever pouring safety of the continuous beam is guaranteed; compared with a traditional anchoring process, the steel noose and the supporting stand column are convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of anchoring devices, in particular to a temporary prestressed tensioning anchoring device for a segment beam. Background Art

[0002] Casting, in civil engineering, refers to the process of pouring concrete or other materials into a mold to form a predetermined shape. During the construction of some bridges, it is generally necessary to temporarily cast bridge piers and beams on site, so a bracket is needed to support the mold.

[0003] At present, in the existing technology, fine-rolled threaded steel bars are pre-embedded on both sides of the pier top, and temporary concrete supports are poured on the edge of the pier top, and the beam body and the pier are temporarily anchored to form a continuous rigid frame. After the construction of the variable-section continuous beam is completed, the temporary supports are manually chiseled out. When the fine-rolled threaded steel bars are pre-embedded, there will be spatial conflicts with the pier column steel bars and the beam body steel bars, and the steel bar spacing cannot be guaranteed, which may cause the concrete to be loose; and because the lever arm is short, it is necessary to ensure sufficient anti-overturning moment, which can only increase the amount of fine-rolled screw steel bars. This increases the difficulty of removing the temporary supports and the need to remove the temporary supports and fine-rolled threaded steel bars after the bridge is closed. Due to limited space, the support is difficult to remove, and the beam body is easily damaged during the removal process. In view of this, we propose a temporary prestressed tensioning anchoring device for segmental beams. Utility Model Content

[0004] The main purpose of the utility model is to provide a temporary prestressed tensioning anchoring device for a segment beam, which can solve the problems raised in the above technical background.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a temporary prestressed tensioning anchoring device for a segmental beam, comprising a device body, the upper surface of which is fixedly connected with a mounting device, and the mounting device comprises:

[0006] The mounting substrate has a bottom surface fixedly connected to the upper surface of the device body, an inner wall of the mounting substrate is slidably connected with a trigger plate, a bottom surface of the trigger plate is fixedly connected to the upper surface of the spring leaf, and a bottom surface of the spring leaf is fixedly connected to the inner wall of the mounting substrate.

[0007] Preferably, the inner wall of the trigger plate is hinged to one end of the connecting plate, and the other end of the connecting plate is hinged to the inner wall of the hook plate.

[0008] Preferably, the surface of the hook plate is hinged to the inner wall of the mounting base plate.

[0009] Preferably, the device body includes a base, the upper surface of the base is fixedly connected to one end of the supporting column, the other end of the supporting column is fixedly connected to one end of the extension column, the other end of the extension column is fixedly connected to one side of the rubber pad, the other end of the rubber pad is fixedly connected to the bottom surface of the casting mold, and a rubber pad is arranged on the top of the extension column through the rubber pad, which is supported on the bottom of the casting mold to avoid local damage to the casting mold, and a stopper is fixedly connected to the inner wall of the casting mold.

[0010] Preferably, the inner wall of the support platform is fixedly connected to one end of the steel cable, and the other end of the steel cable is fixedly connected to a customized anchor, and the surface of the customized anchor is engaged with the inner wall of the stop block.

[0011] Preferably, the upper surface of the support platform is fixedly connected to one end of the support plate, the other end of the support plate is fixedly connected to the bottom surface of the mounting device, and the surface of the support plate is fixedly connected to both ends of the reinforcement frame.

[0012] Beneficial Effects

[0013] The utility model provides a temporary prestressed tensioning anchoring device for segmental beams. It has the following beneficial effects:

[0014] (1) The temporary prestressed tensioning anchoring device of the segment beam is provided with a steel strand. When the longitudinal anchoring spacing of the steel strand is increased, the lever arm can be lengthened, which can increase the anti-overturning moment of the variable-section continuous beam. Temporary supports are provided on both sides of the pier to reduce the overturning lever arm, which can effectively reduce the overturning moment and ensure the safety of the cantilever casting of the continuous beam. Compared with the traditional anchoring process, the steel strand and the supporting column are easy to install and remove without any damage to the beam body.

[0015] (2) The temporary prestressed tensioning anchoring device of the segment beam is provided with an installation device. When the casting mold needs to be installed, the casting mold is placed on the upper surface of the installation device. The casting mold squeezes the trigger plate to move downward, so that the trigger plate compresses the spring leaf, and the trigger plate moves downward to push the connecting plate to move toward both ends. The hook plate is pushed to swing through the connecting plate, so that the hook plate is hooked into the inside of the fixing groove opened on the bottom surface of the casting mold, thereby preliminarily fixing the casting mold and facilitating the installation of supporting columns around the casting mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the casting mold of the utility model when viewed from above;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the installation device of the utility model.

[0021] Explanation of the accompanying drawings: 1. Device body; 2. Installation device; 101. Base; 102. Support column; 103. Extension column; 104. Rubber pad; 105. Casting mold; 106. Stop block; 107. Steel winch; 108. Customized anchor; 109. Support plate; 110. Reinforcement frame; 111. Fixing groove; 201. Installation base plate; 202. Trigger plate; 203. Reed; 204. Connecting plate; 205. Hook plate.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4The utility model proposes a temporary prestressed tensioning anchoring device for a segmental beam, comprising a device body 1, the device body 1 comprising a cap 101, the upper surface of the cap 101 is fixedly connected to one end of a supporting column 102, the other end of the supporting column 102 is fixedly connected to one end of an extension column 103, the other end of the extension column 103 is fixedly connected to one side of a rubber pad 104, the other end of the rubber pad 104 is fixedly connected to the bottom surface of a casting mold 105, a stopper 106 is fixedly connected to the inner wall of the casting mold 105, a fixing groove 111 matching with a hook plate 205 is provided on the bottom surface of the casting mold 105, the inner wall of the cap 101 is fixedly connected to one end of a steel cable 107, and the other end of the steel cable 107 is fixedly connected to It is connected with a customized anchor 108, and through the set steel rope 107, when the longitudinal anchoring spacing of the steel rope 107 is increased, the force arm can be lengthened, and the anti-overturning moment of the variable-section continuous beam can be increased. Temporary supports are set on both sides of the pier to reduce the overturning force arm, which can effectively reduce the overturning moment and ensure the safety of the cantilever casting of the continuous beam. Compared with the traditional anchoring process, the steel rope 107 and the supporting column 102 are easy to install and remove, and there is no damage to the beam body. The surface of the customized anchor 108 is clamped with the inner wall of the block 106, the upper surface of the base 101 is fixedly connected to one end of the support plate 109, and the other end of the support plate 109 is fixedly connected to the bottom surface of the installation device 2, and the surface of the support plate 109 is fixedly connected to both ends of the reinforcement frame 110.

[0025] The upper surface of the device body 1 is fixedly connected with a mounting device 2. Through the provided mounting device 2, when the casting mold 105 needs to be installed, the casting mold 105 is placed on the upper surface of the mounting device 2, and the casting mold 105 squeezes the trigger plate 202 to move downward, so that the trigger plate 202 compresses the spring 203, and the trigger plate 202 moves downward to push the connecting plate 204 to move toward both ends, and the hook plate 205 is pushed to swing through the connecting plate 204, so that the hook plate 205 is hooked into the inside of the fixing groove 111 opened on the bottom surface of the casting mold 105, and the casting mold 105 is preliminarily fixed. In order to install the supporting column 102 around the casting mold 105, the installation device 2 includes: a mounting base plate 201, the bottom surface of the mounting base plate 201 is fixedly connected to the upper surface of the device body 1, the inner wall of the mounting base plate 201 is slidably connected with a trigger plate 202, the bottom surface of the trigger plate 202 is fixedly connected to the upper surface of the spring 203, the bottom surface of the spring 203 is fixedly connected to the inner wall of the mounting base plate 201, the inner wall of the trigger plate 202 is hinged to one end of the connecting plate 204, the other end of the connecting plate 204 is hinged to the inner wall of the hook plate 205, and the surface of the hook plate 205 is hinged to the inner wall of the mounting base plate 201.

[0026] In the utility model, when in use, a steel rope 107 and a supporting column 102 are pre-embedded on the base 101 of the device body 1. After the casting of the casting mold 105 is completed, the supporting plate 109 and the reinforcement frame 110 are removed, and the supporting column 102 is retained. When the casting mold 105 needs to be installed, the casting mold 105 is placed on the upper surface of the installation device 2, and the casting mold 105 squeezes the trigger plate 202 to move downward, so that the trigger plate 202 compresses the spring 203, and the trigger plate 202 moves downward to push the connecting plate 204 to move toward both ends, and the hook plate 205 is pushed to swing through the connecting plate 204, so that the hook plate 205 is hooked into the inside of the fixing groove 111 opened on the bottom surface of the casting mold 105, and the casting mold 105 is preliminarily fixed.

[0027] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A temporary prestressed tensioning anchoring device for a segmental beam, comprising a device body (1), Features: The upper surface of the device body (1) is fixedly connected with a mounting device (2), and the mounting device (2) comprises: A mounting substrate (201), the bottom surface of the mounting substrate (201) being fixedly connected to the top surface of the device body (1), the inner wall of the mounting substrate (201) being slidably connected to a trigger plate (202), the bottom surface of the trigger plate (202) being fixedly connected to the top surface of a spring leaf (203), and the bottom surface of the spring leaf (203) being fixedly connected to the inner wall of the mounting substrate (201).

2. A temporary prestressed tensioning anchoring device for segmental beams according to claim 1, Features: The inner wall of the trigger plate (202) is hinged to one end of the connecting plate (204), and the other end of the connecting plate (204) is hinged to the inner wall of the hook plate (205).

3. A temporary prestressed tensioning anchoring device for segmental beams according to claim 2, Features: The surface of the hook plate (205) is hinged to the inner wall of the mounting base plate (201).

4. A temporary prestressed tensioning anchoring device for segmental beams according to claim 1, Features: The device body (1) comprises a support platform (101), the upper surface of the support platform (101) is fixedly connected to one end of a supporting column (102), the other end of the supporting column (102) is fixedly connected to one end of an extension column (103), the other end of the extension column (103) is fixedly connected to one side of a rubber pad (104), the other end of the rubber pad (104) is fixedly connected to the bottom surface of a casting mold (105), a stopper (106) is fixedly connected to the inner wall of the casting mold (105), and a fixing groove (111) matching with a hook plate (205) is provided on the bottom surface of the casting mold (105).

5. A temporary prestressed tensioning anchoring device for segmental beams according to claim 4, Features: The inner wall of the support platform (101) is fixedly connected to one end of a steel rope (107), and the other end of the steel rope (107) is fixedly connected to a customized anchor (108), and the surface of the customized anchor (108) is clamped with the inner wall of the stopper (106).

6. A temporary prestressed tensioning anchoring device for segmental beams according to claim 5, Features: The upper surface of the support platform (101) is fixedly connected to one end of the support plate (109), the other end of the support plate (109) is fixedly connected to the bottom surface of the mounting device (2), and the surface of the support plate (109) is fixedly connected to both ends of the reinforcement frame (110).

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