Bridge pier and abutment embedded steel bar positioning fixture

Abstract

The utility model discloses a bridge pier and abutment embedded steel bar positioning clamp which comprises a middle connecting frame and an end connecting frame which are symmetrically arranged, the middle connecting frame and the end connecting frame are spliced end to end through a connecting mechanism to form an oval structure, and U-shaped openings a for limiting steel bars are formed in the inner ring of the oval structure at equal intervals. And a positioning structure is arranged at the joint of the middle connecting frame and the end connecting frame. The middle connecting frame and the end connecting frame are spliced, after the U-shaped block and the U-shaped groove are in butt joint in place, the U-shaped opening b and the U-shaped opening c are aligned, the T-shaped pin is rotated, the T-shaped pin is pressed into the U-shaped opening c, then the nut is screwed, the middle connecting frame and the end connecting frame are locked together through the nut and the T-shaped pin, assembly is completed, at the moment, a reinforcing steel bar is vertically placed in the U-shaped opening a, and the U-shaped block and the U-shaped groove are in butt joint in place. Equidistant limiting arrangement of the steel bars is guaranteed, subsequent steel bar binding is facilitated, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field especially relates to a bridge pier platform pre -buried steel bar positioning fixture. BACKGROUND

[0002] With the acceleration of urbanization, railway transportation is increasingly important in our country. As an important part of transportation, the safety and stability of railway have been concerned, and the safety and stability of railway bridge pier platform, as an important structure of supporting the upper structure of railway bridge, are directly related to the normal operation of railway.

[0003] Railway bridge pier platform is the structure of supporting the upper structure of railway bridge, and the bridge pier platform is the combination of pier and abutment, the pier is located between adjacent bridge spans, and the abutment is located at the two ends of the bridge. The rear end of the abutment extends into the roadbed, and has the functions of blocking the bridgehead roadbed filling and connecting the roadbed and the bridge span. The pier, abutment and bridge foundation are collectively referred to as the lower structure of the bridge.

[0004] The pier is mainly composed of a top cap and a pier body. The abutment is mainly composed of a top cap and an abutment body. The pier body and the abutment body are the main structures of supporting the bridge span, not only bearing all the loads from the bridge span structure, but also directly bearing various loads such as soil pressure, water flow impact force, ice pressure and ship impact force, so the pier body and the abutment body have sufficient strength, stiffness and stability.

[0005] In the construction of bridge pier platform, the pre-embedded steel bar positioning (fixture) device is an important technical means to improve the stability of railway pier platform, and has important theoretical and engineering application value. The vertical steel bars are easy to bend under the action of gravity, and the spacing is not easy to control, which is not convenient for subsequent steel bar binding. Therefore, it is necessary to limit the vertical steel bars. UTILITY MODEL CONTENT

[0006] The utility model discloses a bridge pier platform pre-embedded steel bar positioning fixture to solve the shortcoming in the prior art.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme:

[0008] A bridge pier platform pre-embedded steel bar positioning fixture, comprising symmetrically arranged middle connecting frames and end connecting frames, the middle connecting frames and the end connecting frames are spliced into an elliptical structure through a connecting mechanism, the inner ring of the elliptical structure is provided with U-shaped openings a for limiting steel bars at equal intervals, and the connecting part of the middle connecting frame and the end connecting frame is provided with a positioning structure.

[0009] Preferably, the intermediate connecting frame and the end connecting frame correspond to include straight strip plates and semicircular plates arranged in parallel, two straight strip plates are connected by a plurality of columns a, and a plurality of columns b are connected between the two semicircular plates, and the U-shaped openings a are uniformly distributed on the straight strip plates and the semicircular plates.

[0010] Preferably, the connecting mechanism comprises a T-shaped pin, a nut is threadedly connected on the T-shaped pin, the T-shaped pin is rotationally connected in the inner wall of the U-shaped opening b provided on the column a, and the column b is provided with a U-shaped opening c corresponding to the T-shaped pin.

[0011] Preferably, the positioning structure comprises a U-shaped block provided at the end of the straight strip plate, and a U-shaped groove embedded with the U-shaped block is provided on the semicircular plate.

[0012] Preferably, the straight strip plate and the semicircular plate are angle iron structures.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the utility model connects the intermediate connecting frame and the end connecting frame, the U-shaped block and the U-shaped groove are docked in place, the U-shaped opening b and the U-shaped opening c are aligned, the T-shaped pin is rotated, the T-shaped pin is pressed into the U-shaped opening c, then the nut is tightened, the intermediate connecting frame and the end connecting frame are locked together by the nut and the T-shaped pin, the assembly is completed, at this time, the reinforcing steel bars are placed in the U-shaped opening a along the vertical direction, the reinforcing steel bars are ensured to be equidistantly positioned, subsequent reinforcing steel bar binding is facilitated, and construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more specifically and intuitively illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below.

[0015] Figure 1 The structural schematic diagram of the utility model is provided.

[0016] Figure 2 The structural schematic diagram of the utility model is provided. Figure 1 The structural schematic diagram of the utility model is provided.

[0017] Figure 3 The structural schematic diagram of the utility model is provided.

[0018] In the drawings: straight strip plate 1, column a 2, U-shaped opening a 3, semicircular plate 4, U-shaped block 5, U-shaped groove 6, U-shaped opening b 7, T-shaped pin 8, U-shaped opening c 9, nut 10, column b 11. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] Reference Figures 1-3 The utility model provides a bridge pier pre -buried steel bar positioning fixture, including symmetrically arranged intermediate connecting frame and end connecting frame, and the intermediate connecting frame and end connecting frame are spliced into oval structure through connecting mechanism, and the inner circle of oval structure is provided with U mouth a3 for limiting steel bar at equal intervals, and the connecting place of intermediate connecting frame and end connecting frame is provided with positioning structure.

[0021] After splicing the intermediate connecting frame and end connecting frame, butt joint U block 5 and U groove 6 in place, U mouth b7 and U mouth c9 are aligned, rotate T type pin 8, press T type pin 8 into U mouth c9, then tighten nut 10, lock the intermediate connecting frame and end connecting frame together by using nut 10 and T type pin 8, complete the assembly, at this time, the steel bars are placed in U mouth a3 along the vertical direction, ensure that each steel bar is positioned at equal intervals, facilitate subsequent steel bar binding, improve construction efficiency.

[0022] In the embodiment, the intermediate connecting frame and end connecting frame respectively correspond to straight strip plate 1 and semicircular plate 4 arranged in parallel, two straight strip plates 1 are connected by a plurality of stand columns a2, and a plurality of stand columns b11 are connected between two semicircular plates 4, and U mouth a3 is uniformly distributed on the straight strip plate 1 and semicircular plate 4.

[0023] In the embodiment, the connecting mechanism includes T type pin 8, nut 10 is threadedly connected on T type pin 8, T type pin 8 is rotatably connected to the inner wall of U mouth b7 formed in stand column a2, U mouth c9 corresponding to T type pin 8 is arranged on stand column b11, T type pin 8 is freely rotatable in U mouth b7, and T type pin 8 can be rotated to the inner side after construction is completed, so that T type pin 8 is prevented from being bent by being touched by external objects during transportation, and protection is achieved.

[0024] In the embodiment, the positioning structure includes U block 5 arranged at the end of straight strip plate 1, U groove 6 embedded with U block 5 is arranged on semicircular plate 4, U block 5 and U groove 6 are butt joint in place, U mouth b7 and U mouth c9 are aligned, and T type pin 8 is facilitated to enter U mouth c9.

[0025] In the embodiment, the straight strip plate 1 and semicircular plate 4 are angle iron structures, and the bending resistance of the straight strip plate 1 and semicircular plate 4 is enhanced.

[0026] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A positioning fixture for embedded steel bars of a bridge pier, comprising symmetrically arranged middle connecting frames and end connecting frames, characterized in that, The intermediate connecting frame and the end connecting frame are spliced into an elliptical structure through a connecting mechanism, the inner circle of the elliptical structure is provided with U-shaped openings a (3) for limiting steel bars at equal intervals, and the connecting part of the intermediate connecting frame and the end connecting frame is provided with a positioning structure; The connecting mechanism comprises a T-shaped pin (8), a nut (10) is threadedly connected to the T-shaped pin (8), the T-shaped pin (8) is rotationally connected to the inner wall of a U-shaped opening b (7) formed in the stand a (2), and the stand b (11) is provided with a U-shaped opening c (9) corresponding to the T-shaped pin (8). The positioning structure comprises a U-shaped block (5) arranged at the end of the straight strip plate (1), and the semicircular plate (4) is provided with a U-shaped groove (6) embedded with the U-shaped block (5).

2. The positioning fixture for embedded steel bars of a bridge pier according to claim 1, characterized in that, The intermediate connecting frame and the end connecting frame respectively comprise straight strip plates (1) and semicircular plates (4) arranged in parallel, two straight strip plates (1) are connected through a plurality of stands a (2), and a plurality of stands b (11) are connected between two semicircular plates (4), and the U-shaped openings a (3) are uniformly distributed on the straight strip plates (1) and the semicircular plates (4).

3. The positioning fixture for embedded steel bars of a bridge pier according to claim 2, characterized in that, The straight strip plates (1) and the semicircular plates (4) are angle iron structures.

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