Prestressed reinforced concrete pier reinforcing device

Abstract

The utility model provides a prestressed reinforced concrete pier reinforcing device, which relates to the technical field of bridge engineering and comprises a pier body, a first limiting block arranged on one side of a first hoop, a first bolt arranged on one side of the first limiting block, a fourth limiting block arranged on one side of the first hoop and a third limiting block arranged on one side of a second hoop. The protection pads are arranged at the two corners of the interior of the first hoop and the two corners of the interior of the second hoop respectively, the five water leakage holes are formed in the protection pads, in this way, rainwater cannot form accumulated water at the tops of the first hoop and the second hoop during use, the corrosion effect of the accumulated water on the pier is reduced, and in a cold region, the bridge pier is protected from being damaged. The damage of frost heaving caused by accumulated water freezing to the bridge pier can be reduced without accumulated water, so that rainwater can be drained in time to prevent the hoop from bearing the weight of the accumulated water for a long time, the reinforcing effect of the hoop on the bridge pier is guaranteed, the hoop can play a role more stably, and the service life of the bridge pier is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering technical field especially relates to a prestressed reinforced concrete pier reinforcing device. BACKGROUND

[0002] According to the utility model of a kind of steel reinforced concrete pier new reinforcing device disclosed by Chinese patent No.CN203346803U, two U-shaped hoops are correspondingly buckled, the ends of the two steel hoops are welded together to form a closed loop hoop that matches the circumference of the steel reinforced concrete pier;It is also provided with a bolt pre-tightening part for applying pre-tension to the steel hoop, and FRP cloth is continuously fixed and attached to the outer side of the steel hoop along the length direction of the steel hoop. After adopting the above technical scheme, the utility model of a kind of steel reinforced concrete pier new reinforcing device, which combines FRP cloth with good tensile strength with steel hoop with good plastic deformation performance, avoids the occurrence of stress hysteresis by pre-tightening the steel hoop, efficiently utilizes the characteristics of FRP cloth, and effectively improves the comprehensive reinforcing strength of the utility model;Meanwhile, FRP cloth effectively protects the steel hoop by its corrosion resistance and durability.

[0003] The above-mentioned comparative document and prior art have the following technical problems:

[0004] 1. In the use process, due to the influence of factors in different regions, such as rain, cracks and deformation may occur, thereby affecting the normal use of the bridge. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems existing in the prior art and provides a prestressed reinforced concrete pier reinforcing device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a prestressed reinforced concrete pier reinforcing device, comprising a pier body, a first hoop, a first limiting block on one side of the first hoop, a first bolt on one side of the first limiting block, a fourth limiting block on one side of the first hoop, a third limiting block on one side of the second hoop, a second bolt on one side of the fourth limiting block, a first nut on one side of the second bolt, a top V-shaped groove on one side of the first hoop, and a bottom V-shaped groove on one side of the first hoop.

[0007] Preferably, the pier body is provided with four protective pads, and the protective pads are arranged in a matrix, and the pier body and the protective pads are treated by bonding.

[0008] Preferably, the protective pad is provided with five water leakage holes, and the length of the water leakage hole is consistent with the length of the protective pad.

[0009] Preferably, the outer wall of the protective pad is provided with a first hoop, and the protective pad is connected with the first hoop by means of close connection.

[0010] Preferably, one side of the protective pad is provided with a second hoop, and the second hoop is close to the protective pad.

[0011] Preferably, the outer wall of the second hoop is provided with a second limiting block, and the protective pad is welded with the second limiting block.

[0012] Preferably, one side of the first bolt is provided with a second nut, and the first bolt is threadedly connected with the second nut by penetrating the first limiting block and the second limiting block.

[0013] Beneficial effects

[0014] In the utility model, the inside of the first hoop and the second hoop is respectively provided with the protective pad, and the inside of the protective pad is provided with five water leakage holes, so that the rainwater cannot form the accumulated water on the top of the first hoop and the second hoop during use, thereby reducing the corrosion effect of the accumulated water on the pier, and the damage of the frost heaving caused by the ice of the accumulated water can be reduced in the cold area, so that the weight of the long-term accumulated water of the hoop can be avoided, the reinforcing effect of the hoop on the pier is ensured, the function of the hoop can be more stably played, and the service life of the pier is greatly prolonged.

[0015] In the utility model, the top V-shaped groove and the bottom V-shaped groove are arranged on the surface of the first hoop and the second hoop, and the corners are all treated, so that the rainwater can flow along the V-shaped groove and flow away when it rains, the rainwater can be prevented from gathering on the surface of the hoop, the corrosion and the pressure of the rainwater on the hoop are reduced, the erosion of the long-term accumulated water on the connecting part of the hoop and the pier can be prevented, and the structural stability of the reinforcing device is ensured.

[0016] In the utility model, the four groups of first bolts, second nuts and second bolt first nuts are arranged on the two sides of the first hoop and the second hoop, and the four groups of bolt nuts are distributed on the two sides of the hoop, so that the stress of the hoop in each direction is more uniform, the stress can be effectively dispersed through the multiple connecting points when the hoop acts on the pier from any direction, the local stress concentration is avoided, the deformation or damage of the hoop is avoided, and the reliability of the whole reinforcing device is improved. DRAWINGS

[0017] Figure 1 It is the isometric view of the utility model;

[0018] Figure 2 It is the isometric view of the utility model;

[0019] Figure 3 It is the plan view of the utility model;

[0020] Figure 4 Front view of the utility model.

[0021] Legend:

[0022] 1, pier body; 2, first hoop; 3, first limiting block; 4, first bolt; 5, second bolt; 6, first nut; 7, second limiting block; 8, second nut; 9, protective pad; 10, water leakage hole; 11, top V-shaped groove; 12, bottom to V-shaped groove; 13, second hoop; 14, third limiting block; 15, fourth limiting block. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following will be further described in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The specific embodiments of the utility model are described below in conjunction with the drawings. Embodiment one:

[0026] Reference Figures 1-4 A prestressed reinforced concrete pier reinforcing device, comprising a pier body 1, one side of the first hoop 2 is provided with a first limiting block 3, one side of the first limiting block 3 is provided with a first bolt 4, one side of the first bolt 4 is provided with a second nut 8, one side of the first bolt 4 is provided with a second limiting block 7, one side of the second limiting block 7 is provided with a second bolt 5, one side of the second bolt 5 is provided with a first nut 6, one side of the first hoop 2 is provided with a fourth limiting block 15, one side of the fourth limiting block 15 is provided with a third limiting block 14, one side of the second hoop 13 is provided with a third limiting block 14, one side of the fourth limiting block 15 is provided with a second bolt 5, one side of the second bolt 5 is provided with a first nut 6, one side of the first hoop 2 is provided with a top V-shaped groove 11, and one side of the first hoop 2 is provided with a bottom to V-shaped groove 12.

[0027] The user is provided with a protective pad 9 inside the two corners of the first and second hoops 2 and 13, and the inside of the protective pad 9 is provided with five water leakage holes 10, which can prevent rainwater from accumulating on the top of the first and second hoops 2 and 13 during use, thereby reducing the corrosion of the bridge pier by the accumulated water. In cold regions, the damage to the bridge pier caused by frost heaving due to the freezing of accumulated water can be reduced without accumulated water. Therefore, timely drainage of rainwater can prevent the hoop from bearing the weight of the accumulated water for a long time, ensuring the reinforcing effect of the hoop on the bridge pier and enabling it to function more stably. This greatly prolongs the service life of the bridge pier. The first and second hoops 2 and 13 are provided with top V-shaped grooves 11 and bottom V-shaped grooves 12 on their surfaces, which are treated with rounded corners. This allows rainwater to flow away along the V-shaped grooves, preventing rainwater from accumulating on the surface of the hoop and reducing the corrosion and pressure on the hoop. It can also prevent the erosion of the connection between the hoop and the bridge pier caused by long-term accumulated water, ensuring the structural stability of the reinforcing device. The first and second hoops 2 and 13 are provided with four sets of first bolts 4, second nuts 8, and second bolts 5 first nuts 6 on their two sides, which are distributed on both sides of the hoop, making the stress on the hoop more uniform in all directions. The hoop can effectively disperse stress through multiple connection points when acting on the bridge pier from any direction, preventing local stress concentration from causing deformation or damage to the hoop, thereby improving the reliability of the entire reinforcing device. Specific embodiment two:

[0029] Referring to Figures 1-4 , a pressure sensor is installed on one side of the pier 1, which can monitor the pressure changes on the bridge pier in real time during use. During the use of the bridge, factors such as vehicle load will continuously act on the bridge pier, and the pressure sensor can capture these changes at any time to provide accurate real-time data for bridge management personnel.

[0030] In summary:

[0031] 1. The protective pad 9 is provided inside the two corners of the first and second hoops 2 and 13, and the inside of the protective pad 9 is provided with five water leakage holes 10, which can prevent rainwater from accumulating on the top of the first and second hoops 2 and 13 during use, thereby reducing the corrosion of the bridge pier by the accumulated water. In cold regions, the damage to the bridge pier caused by frost heaving due to the freezing of accumulated water can be reduced without accumulated water. Therefore, timely drainage of rainwater can prevent the hoop from bearing the weight of the accumulated water for a long time, ensuring the reinforcing effect of the hoop on the bridge pier and enabling it to function more stably. This greatly prolongs the service life of the bridge pier.

[0032] 2、The first hoop 2 and the second hoop 13 are provided with top V-shaped grooves 11 and bottom V-shaped grooves 12 on surfaces thereof, and are all provided with rounded corners, so that rain can flow along the V-shaped grooves and is prevented from gathering on the surfaces of the hoops, corrosion and pressure on the hoops are reduced, long-term water accumulation is prevented from corroding the connection between the hoops and the bridge pier, and the structural stability of the reinforcing device is ensured.

[0033] 3、The first hoop 2 and the second hoop 13 are provided with four groups of first bolts 4, second nuts 8 and second bolts 5 first nuts 6 on two sides thereof, so that the four groups of bolts and nuts are distributed on the two sides of the hoops, the stress on the hoops in each direction is more uniform, the hoops can effectively disperse stress through multiple connection points from any direction acting on the bridge pier, local stress concentration is avoided to cause deformation or damage of the hoops, and the reliability of the entire reinforcing device is improved.

[0034] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under", can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but are in contact through other features between them. Moreover, first feature "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that the horizontal height of first feature is higher than that of second feature. First feature "under", "below" and "lower surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that the horizontal height of first feature is less than that of second feature.

[0035] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and range of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A device for reinforcing a prestressed reinforced concrete bridge pier, comprising a pier body (1), characterized in that: The four protection pads (9) are arranged around the pier body (1), the outer wall of the protection pad (9) is provided with a first hoop (2), one side of the first hoop (2) is provided with a first limiting block (3), one side of the first limiting block (3) is provided with a first bolt (4), one side of the first hoop (2) is provided with a fourth limiting block (15), one side of the protection pad (9) is provided with a second hoop (13), one side of the second hoop (13) is provided with a third limiting block (14), one side of the fourth limiting block (15) is provided with a second bolt (5), one side of the second bolt (5) is provided with a first nut (6), one side of the first hoop (2) is provided with a top V-shaped groove (11), one side of the first hoop (2) is provided with a bottom V-shaped groove (12), one side of the first bolt (4) is provided with a second nut (8), and the first bolt (4) penetrates the first limiting block (3) and the second limiting block (7) and is threadedly connected with the second nut (8).

2. The pre-stressed reinforced concrete bridge pier reinforcement device according to claim 1, characterized in that: The protection pads (9) are arranged in a matrix, and the pier body (1) and the protection pads (9) are subjected to fitting treatment.

3. The pre-stressed reinforced concrete bridge pier reinforcement device according to claim 1, characterized in that: The inside of the protection pad (9) is provided with five water leakage holes (10), and the length of the water leakage hole (10) is consistent with the length of the protection pad (9).

4. The pre-stressed reinforced concrete bridge pier reinforcement device according to claim 1, characterized in that: The protection pad (9) and the first hoop (2) are connected by fitting.

5. The pre-stressed reinforced concrete bridge pier retrofit device of claim 1, wherein: The second hoop (13) is fitted with the protection pad (9).

6. The pre-stressed reinforced concrete bridge pier retrofit device of claim 1, wherein: The outer wall of the second hoop (13) is provided with a second limiting block (7), and the protection pad (9) and the second limiting block (7) are subjected to welding treatment.

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