A self-climbing pier body repairing system

Abstract

The application provides a self-climbing pier body repairing system, comprising a pier body, wherein the pier body comprises a formwork-removing section and a formwork-removing section, the outer side of the formwork-removing section is provided with a steel formwork, the outer side of the steel formwork is provided with a plurality of platform frames in the vertical direction, the outer side of the formwork-removing section is provided with a repairing platform, the inner side of the repairing platform is connected with the formwork-removing section through a hoop, and the outer side of the repairing platform is connected with the platform frame through a lifting device. The self-climbing pier body repairing system climbs and descends through the cooperation of the hoop and the lifting device, has a simple structure and is safe and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of bridge pier construction technology, specifically a self-climbing bridge pier repair system. Background Technology

[0002] Formwork flipping construction is a common construction method in bridge engineering. Its advantage is that it does not require the erection of ground-mounted formwork support frames and external scaffolding. By using the already poured concrete section as the upper formwork support, the concrete pouring of the entire bridge pier can be completed by reasonably organizing the formwork to flip up from the bottom. The higher the bridge pier, the higher the construction efficiency of this method.

[0003] However, formwork flipping requires continuous formwork lifting, unlike climbing formwork or slipform construction where a fixed repair platform can be set up below the bottom formwork and rise together with it. Currently, most construction companies use lifting platforms and other mechanical equipment to repair the pier body, but this method has disadvantages such as high rental costs, long equipment occupation period, high site requirements (not suitable for areas inaccessible to machinery, such as steep slopes), inability to guarantee timely repair of the pier body concrete, and unsuitability for repairing higher pier body concrete.

[0004] How to use a reasonable, safe, and reliable platform for pier formwork repair during pier formwork construction is a topic worthy of study. Summary of the Invention

[0005] In view of the above-mentioned prior art, the present invention proposes a self-climbing bridge pier repair system.

[0006] This invention provides a self-climbing bridge pier repair system, comprising a pier body, which includes an unformed section and a disformed section. The outer end of the unformed section is provided with a steel template, and the outer end of the steel template is provided with several platform frames along the vertical direction. The outer side of the disformed section is provided with a repair platform, and the inner side of the repair platform is connected to the disformed section via a clamp. The outer side of the repair platform is connected to the platform frames via a lifting device.

[0007] Preferably, four repair platforms are provided, which are respectively placed around the demolded section of the pier. Each repair platform includes a bottom frame made of angle steel welded together. A steel mesh is fixed on the upper surface of the bottom frame. A protective fence is provided along the perimeter of the bottom frame. The top inner side of the protective fence is connected to the demolded section of the pier by a clamp.

[0008] Preferably, the clamp is composed of four clamping plates spliced ​​together. The four clamping plates are respectively placed around the perimeter of the demolded section of the pier. Each clamping plate has a connecting seat at its outer ends on both sides. The top and bottom of adjacent clamping plates are connected to the connecting seats by high-strength screws. The high-strength screws pass through two connecting seats in sequence and are fixedly connected to the connecting seats by fixing nuts.

[0009] Preferably, a hexagonal nut is provided on the high-strength screw between adjacent connecting seats.

[0010] Preferably, the top and bottom of the connecting seat are hinged to a connecting rod, the outer end of the connecting rod is provided with a roller, and the outer end of the connecting rod is also connected to the top of the clamping plate through a tension spring. The tension spring is placed between two clamping plates, and a buckle plate is provided between the two clamping plates. One end of the buckle plate is hinged to one of the clamping plates, and the other end of the buckle plate is detachably connected to the other clamping plate.

[0011] Preferably, the inner end of the retaining plate is provided with a rubber pad.

[0012] Preferably, the lifting device includes two rollers, both of which are connected to a motor and fixed to the top outer side of the repair platform. Steel wire ropes are wound around both rollers, and the other ends of the two steel wire ropes are fixedly connected to the platform frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The present invention provides a self-climbing bridge pier repair system, which uses the cooperation of clamps and lifting devices to raise and lower the repair platform. It is especially suitable for the construction of high bridge piers, avoiding the erection of scaffolding and the use of lifting operation platforms. It has the advantages of wide applicability, high safety protection efficiency, high turnover rate, and convenient and quick assembly and disassembly.

[0015] 2. This invention is highly operable, simple in structure, and highly efficient in assembly and disassembly. By improving the repair platform, it can realize the repair of the pier concrete during the pier formwork construction process.

[0016] 3. This invention avoids the cumbersome procedures of erecting and dismantling ground-mounted scaffolding, reduces the use of materials and manpower, and solves the problem of difficulty in repair due to the inability of lifting machinery to reach steep mountain slopes and other conditions. It has wide applicability.

[0017] 4. This invention enables the repair platform to be freely raised and lowered. During formwork construction, it can inspect and repair the concrete of the entire pier below. It can also be used for multiple piers according to the construction schedule, with a high turnover rate. It can also serve as a processing platform for various embedded parts of the pier and an operation platform for the final pier painting. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0019] Figure 2 This is a top view of an embodiment of the present invention.

[0020] Figure 3 , 4 This is a partial structural schematic diagram of an embodiment of the present invention.

[0021] In the diagram: 1. Pier body; 2. Steel formwork; 3. Platform frame; 4. Repair platform; 5. Clamping plate; 6. Connecting seat; 7. High-strength screw; 8. Connecting rod; 9. Roller; 10. Tension spring; 11. Clamping plate; 12. Buckle plate; 13. Steel wire rope; 14. Rubber pad. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations. Example

[0023] A self-climbing bridge pier repair system, such as Figure 1-4 As shown, the pier includes a rectangular pier body 1, which includes an unformed section and a demolded section. A steel formwork 2 is provided at the outer end of the unformed section, and several platform frames 3 are provided at the outer end of the steel formwork 2 in the vertical direction. The steel formwork 2 and the platform frames 3 form a lifting system for pier construction, which is the existing structure.

[0024] Furthermore, such as Figure 1-3 As shown, a repair platform 4 is provided on the outer side of the dismantled section of the pier. Four repair platforms 4 are provided and placed around the dismantled section of the pier. The repair platform 4 includes a bottom frame made of angle steel welded together. A steel mesh is fixed on the upper surface of the bottom frame. A protective fence is provided around the bottom frame. The top inner side of the protective fence is connected to the dismantled section of the pier by a clamp. The clamp is composed of four clamp plates 5 spliced ​​together. The clamp plates 5 are made of steel plates. The four clamp plates 5 are placed around the dismantled section of the pier. A continuous connecting seat 6 is provided at the outer ends of both sides of the clamp plate 5. The connecting seat 6 is triangular in shape. The top and bottom of adjacent clamp plates 5 are connected to the connecting seat 6 by high-strength screws 7. The high-strength screws 7 pass through two connecting seats 6 in sequence and are fixed to the connecting seat 6 at both ends by a fixing nut. A hexagonal nut is provided on the high-strength screw 7 between adjacent connecting seats 6 to improve the stiffness of the high-strength screw 7.

[0025] Furthermore, such as Figure 3 , 4As shown, the top and bottom of the connecting seat 6 are connected to the connecting rod 8 via a rotating shaft. The outer end of the connecting rod 8 is equipped with a roller 9. The outer end of the connecting rod 8 is also connected to the top of the clamping plate 5 via a tension spring 10. The tension spring 10 is placed between two clamping plates 11. The clamping plates 11 are fixed to the top of the clamping plate 5. A buckle plate 12 is provided between the two clamping plates 11. One end of the buckle plate 12 is hinged to one clamping plate 11, and the other end of the buckle plate 12 is detachably connected to the other clamping plate 11, such as by a bolt assembly or a snap-fit ​​assembly.

[0026] Thus, when the clamp is tightened, the roller 9 is pressed against the upper and lower sides of the clamping plate 5 by the pier body 1; when the clamp is loosened, the roller 9 is automatically pulled to the gap between the clamping plate 5 and the pier body 1 by the tension spring 10. At this time, the tension spring 10 retracts to the space between the two clamping plates 11, so that the connecting rod 8 is also placed between the two clamping plates 11. Then, the fastening plate 12 is used to fasten and fix the connecting rod 8 in the two clamping plates 11. At this time, the roller 9 can not only assist the clamp to slide freely along the pier body, but also serve as a horizontal fixing device for the clamp, ensuring the horizontal stability of the clamp and the repair platform 4 when they move up and down.

[0027] Furthermore, such as Figure 1 As shown, the top outer side of the repair platform 4 is connected to the bottom platform frame 3 via a lifting device. The lifting device includes two rollers, which are evenly fixed on the repair platform 4. Steel wire ropes 13 are wound around both rollers, and the other end of the steel wire ropes 13 is fixedly connected to the platform frame 3. The rollers are connected to a motor.

[0028] Thus, when the repair platform 4 needs to climb or descend, the fixing nut on the high-strength screw 7 can be loosened appropriately to reduce the friction between the clamp and the dismantled section of the pier. The motor drives the roller to roll, which in turn drives the wire rope 13 to retract or extend. At the same time, the roller 9 slides freely along the dismantled section of the pier, so as to realize the rise or fall of the repair platform 4. When it moves to a suitable position, the motor is turned off, the buckle plate 12 is opened, and the fixing nut on the high-strength screw 7 is tightened. The clamp and the wire rope 13, as a common force-bearing structure, fix the repair platform 4 to the pier 1.

[0029] Furthermore, such as Figure 3 As shown, the clamping band generates friction on the pier body 1, providing tension for the repair platform 4. Furthermore, during the lifting of the steel formwork 2, the wire rope 13 needs to be removed, at which point the clamping band becomes the primary load-bearing structure. To increase the friction between the pier body 1 and the clamping band, and to protect the concrete surface of the pier body 1, a rubber pad 14 is placed between the pier body 1 and the clamping band. The rubber pad 14 is bonded to the inner side of the clamping plate 5 to form a single unit.

[0030] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structures made using the contents of the present invention specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. A self-climbing bridge pier repair system, characterized in that, The pier includes a pier body, which comprises an unformed pier body section and a formed pier body section. The outer end of the unformed pier body section is provided with a steel formwork, and the outer end of the steel formwork is provided with several platform frames along the vertical direction. The outer side of the formed pier body section is provided with a repair platform, and the inner side of the repair platform is connected to the formed pier body section via a clamp. The outer side of the repair platform is connected to the platform frame via a lifting device. The clamp is composed of four clamping plates spliced ​​together. The four clamping plates are respectively placed around the perimeter of the demolded section of the pier. Each clamping plate has a connecting seat at its outer end on both sides. The top and bottom of adjacent clamping plates are connected to the connecting seats by high-strength screws. The high-strength screws pass through two connecting seats in sequence and are fixedly connected to the connecting seats by fixing nuts. The top and bottom of the connecting seat are hinged to connecting rods. The outer end of the connecting rod is provided with a roller. The outer end of the connecting rod is also connected to the top of the clamping plate through a tension spring. The tension spring is placed between two clamping plates. A buckle plate is provided between the two clamping plates. One end of the buckle plate is hinged to one of the clamping plates, and the other end of the buckle plate is detachably connected to the other clamping plate.

2. The self-climbing bridge pier repair system as described in claim 1, characterized in that, Four repair platforms are provided, each placed around the perimeter of the dismantled section of the pier. Each repair platform includes a bottom frame made of angle steel welded together. A steel mesh is fixed to the upper surface of the bottom frame. A protective fence is provided around the perimeter of the bottom frame. The top inner side of the protective fence is connected to the dismantled section of the pier by a clamp.

3. The self-climbing bridge pier repair system as described in claim 1, characterized in that, A hexagonal nut is provided on the high-strength screw between adjacent connecting seats.

4. The self-climbing bridge pier repair system as described in claim 1, characterized in that, The inner end of the retaining plate is provided with a rubber pad.

5. The self-climbing bridge pier repair system as described in claim 1 or 2, characterized in that, The lifting device includes two rollers, both of which are connected to a motor and fixed to the top outer side of the repair platform. Steel wire ropes are wound around both rollers, and the other ends of the two steel wire ropes are fixedly connected to the platform frame.

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