Anti-overturning single-column pier bridge structure

Abstract

The utility model discloses an anti-overturning single-column pier bridge structure, which belongs to the technical field of bridge reinforcement, and comprises a pier stand column, a second anchor rod and two semicircular rings, the top of the pier stand column is provided with a box girder, the outer surface of the pier stand column is welded with two symmetrical weldments, and the two weldments are attached to each other. Fastening plates are placed on the upper surfaces of the two weldments, through holes matched with the second anchor rods are formed in the two fastening plates, according to the scheme, a newly-built bridge can be reinforced, the bridge floor can be prevented from overturning, the safety of the bridge in the using process is improved, the constructed bridge can be reinforced, and the safety of the bridge in the using process is improved. Compared with the prior art, the adaptability is greatly improved, and when a vehicle runs on a bridge floor to cause vibration of the bridge, vibration generated by the bridge can be buffered, so that abrasion between parts and looseness of the anchor rod can be reduced, and the service life of the bridge is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge reinforcement, in particular to an anti-overturning single-column pier bridge structure. Background Art

[0002] A single-column pier bridge is a bridge structure that supports the bridge deck with an independent pier. It has a simple structure and is quick to install and build. It is widely used in bridge and viaduct structures. However, as traffic flow continues to increase, the reinforcement of single-column pier bridges is particularly important.

[0003] A single-column pier bridge anti-overturning device with publication number CN214061227U includes a pier and a bridge deck, the bridge deck is installed on the top of the pier, a sleeve is sleeved on the upper outer side of the pier, and triangular brackets are installed at the four corners of the sleeve; a mounting seat is installed on the top of the triangular bracket, mounting holes are opened at the four corners of the mounting seat, and anchor bolts are inserted into the mounting holes.

[0004] The above-mentioned device can effectively prevent the bridge deck from overturning and greatly improve safety. The installation method is simple and convenient, the protection strength is high, and it is stable and reliable. However, the above-mentioned device can only be installed during the construction of the bridge, so it can only reinforce the newly built bridge, but cannot reinforce the bridge that has been built. The adaptability is low, and when the vehicle travels on the bridge deck, it is easy to cause the bridge to vibrate, and the above-mentioned device cannot buffer the vibration of the bridge, which will not only cause easy wear between the parts, but also accelerate the loosening of the anchor rods. Utility Model Content

[0005] The utility model aims to solve the problem that the existing technology cannot reinforce the completed bridge and cannot buffer the vibration generated by the bridge, and proposes an anti-overturning single-column pier bridge structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rollover-resistant single-column pier bridge structure comprises a pier column, a second anchor rod and two semicircular rings, a box beam is installed on the top of the pier column, two symmetrical weldments are welded to the outer surface of the pier column, and the two weldments are fitted together, fastening plates are placed on the upper surfaces of the two weldments, and the two fastening plates are connected by the second anchor rod, the two semicircular rings are symmetrically clamped on the outside of the pier column, and solid blocks are fixedly connected to the outer sides of the two semicircular rings, the solid blocks are connected to the box beam by a reinforcement assembly, and the solid blocks are connected to the fastening plates by a buffer assembly.

[0008] Preferably, the reinforcement assembly includes an anti-overturning support and two first anchor rods, the anti-overturning support is attached to the bottom of the box beam, one end of the two first anchor rods passes through the anti-overturning support and is screwed inside the box beam, the two first anchor rods are threadedly connected with a first fastening cap, and the two first fastening caps are screwed to the bottom of the anti-overturning support.

[0009] Preferably, a reinforcement shaft is fixedly connected to the bottom of the anti-overturning support member, and one end of the reinforcement shaft away from the anti-overturning support member is fixedly connected to the solid block.

[0010] Preferably, a plurality of first reinforcement blocks arranged at intervals are fixedly connected to the outer surface of the reinforcement shaft near the bottom, and the first reinforcement blocks are arranged around the outside of the reinforcement shaft, and the first reinforcement blocks are fixedly connected to the solid block, and a plurality of second reinforcement blocks arranged at intervals are fixedly connected to the outer surface of the reinforcement shaft near the top, and the second reinforcement blocks are arranged around the outside of the reinforcement shaft, and the second reinforcement blocks are fixedly connected to the anti-overturning support.

[0011] Preferably, the buffer assembly includes a first pad installed on the upper surface of the fastening plate, the first pad is fixedly connected to a piston cylinder on a side away from the fastening plate, a piston rod is slidably connected to the inside of the piston cylinder, and the piston cylinder and the piston rod are elastically connected, the top end of the piston rod is fixedly connected to a second pad, and the second pad is installed at the bottom of the solid block.

[0012] Preferably, one end of the piston rod away from the second pad is fixedly connected to a buffer spring, and one end of the buffer spring away from the piston rod is fixedly connected to the inner bottom wall of the piston cylinder, thereby forming an elastic connection between the piston cylinder and the piston rod.

[0013] Preferably, the two fastening plates are each provided with a through hole adapted to the second anchor rod, and the second anchor rod passes through the two through holes and extends to the outside of the two through holes, two second fastening caps are threadedly connected to the second anchor rod, and the two fastening plates are each provided with a receiving hole adapted to the second fastening cap, and the two second fastening caps are respectively screwed into the inside of the two receiving holes.

[0014] Preferably, the inner diameter of the semicircular ring is larger than the outer diameter of the pier column, so that the semicircular ring forms a sliding connection with the pier column.

[0015] Compared with the prior art, the utility model provides an anti-overturning single-column pier bridge structure, which has the following beneficial effects:

[0016] This solution can not only reinforce newly built bridges to prevent bridge decks from overturning and improve the safety of bridges during use, but also reinforce already built bridges. Compared with existing technologies, it has greatly improved adaptability. When vehicles driving on the bridge deck cause the bridge to vibrate, it can buffer the vibrations generated by the bridge, thereby reducing wear between parts and loosening of anchor rods, and increasing the service life of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the utility model hidden pier column and box beam.

[0019] Figure 3 It is a schematic diagram of the connection between the second anchor rod and the second fastening cap of the utility model.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the piston rod, the second pad and the buffer spring of the utility model.

[0021] In the figure:

[0022] 1. Pier column; 2. Box girder; 3. Weldment; 4. Fastening plate; 5. Semicircular ring; 6. Solid block; 7. Reinforcement assembly; 701. Anti-overturning support; 702. Reinforcement shaft; 703. First anchor rod; 704. First fastening cap; 8. Buffer assembly; 801. First pad; 802. Piston cylinder; 803. Piston rod; 804. Second pad; 805. Buffer spring; 9. Receiving hole; 10. Second anchor rod; 11. Second fastening cap. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4A rollover-resistant single-column pier bridge structure comprises a pier column 1, a second anchor rod 10 and two semicircular rings 5. A box girder 2 is installed on the top of the pier column 1. Two symmetrical weldments 3 are welded to the outer surface of the pier column 1, and the two weldments 3 are fitted together. Fastening plates 4 are placed on the upper surfaces of the two weldments 3. The weldments 3 are used to support the fastening plates 4 and improve the stability of the fastening plates 4 during use. Through holes that are compatible with the second anchor rod 10 are opened inside the two fastening plates 4, and the second anchor rod 10 passes through the two through holes and extends to the outside of the two through holes. The two fastening plates are connected by the second anchor rod 10. Each fastening plate 4 is provided with two through holes, and two second fastening caps 11 are threadedly connected to the second anchor rod 10. The two fastening plates 4 are provided with receiving holes 9 adapted to the second fastening caps 11. The two second fastening caps 11 are screwed into the two receiving holes 9 respectively. After the second anchor rod 10 is passed through the two through holes and the second fastening caps 11 are screwed onto the second anchor rod 10, the two fastening plates 4 can be clamped and fixed on the pier column 1. The second anchor rod 10 and the second fastening caps 11 can be hidden through the cooperation between the through holes and the receiving holes 9, so as to reduce the aging speed of the second anchor rod 10 and the second fastening caps 11. The two semicircular rings 5 ​​are symmetrically clamped on the outside of the pier column 1. The outer sides of the two semicircular rings 5 ​​are respectively fixedly connected with solid blocks 6. The inner diameter of the semicircular rings 5 ​​is larger than the outer diameter of the pier column 1. When the bridge vibrates, the two semicircular rings 5 ​​can slide along the pier column 1.

[0025] The solid block 6 is connected to the box beam 2 through a reinforcement assembly 7, which includes an anti-overturning support 701 and two first anchor rods 703. The anti-overturning support 701 is attached to the bottom of the box beam 2, and one end of the two first anchor rods 703 passes through the anti-overturning support 701 and is screwed into the inside of the box beam 2. The two first anchor rods 703 are threadedly connected with first fastening caps 704, and the two first fastening caps 704 are screwed into the bottom of the anti-overturning support 701. The first anchor rods 703 are passed through the anti-overturning support 701 and screwed into the inside of the box beam 2, and then the first fastening caps 704 are screwed onto the first anchor rods 703 to fix the anti-overturning support 701 to the bottom of the box beam 2.

[0026] The bottom of the anti-overturning support 701 is fixedly connected with a reinforcement shaft 702, and one end of the reinforcement shaft 702 away from the anti-overturning support 701 is fixedly connected to the solid block 6. A plurality of first reinforcement blocks arranged at intervals are fixedly connected to the outer surface of the reinforcement shaft 702 near the bottom, and the first reinforcement blocks are arranged around the outer side of the reinforcement shaft 702, and the first reinforcement blocks are fixedly connected to the solid block 6. A plurality of second reinforcement blocks arranged at intervals are fixedly connected to the outer surface of the reinforcement shaft 702 near the top, and the second reinforcement blocks are arranged around the outer side of the reinforcement shaft 702, and the second reinforcement blocks are fixedly connected to the anti-overturning support 701. The reinforcement shaft 702 and the anti-overturning support 701 can support and reinforce the box girder 2 to prevent the bridge deck from overturning. The first reinforcement block can increase the connection stability between the reinforcement shaft 702 and the solid block 6, and the second reinforcement block can increase the connection stability between the reinforcement shaft 702 and the anti-overturning support 701.

[0027] The solid block 6 is connected to the fastening plate 4 through a buffer assembly 8, and the buffer assembly 8 includes a first pad 801 installed on the upper surface of the fastening plate 4, and the first pad 801 is fixedly connected to a piston cylinder 802 on a side away from the fastening plate 4, and the piston cylinder 802 is slidably connected to a piston rod 803 inside, and the top of the piston rod 803 is fixedly connected to a second pad 804, and the second pad 804 is installed on the bottom of the solid block 6, and the end of the piston rod 803 away from the second pad 804 is fixedly connected to a buffer spring 805, and the end of the buffer spring 805 away from the piston rod 803 is fixedly connected to the inner bottom wall of the piston cylinder 802, so that the piston cylinder 802 and the piston rod 803 form an elastic sliding connection, and the vibration of the bridge is absorbed by the buffer spring 805. The first pad 801 and the fastening plate 4, and the second pad 804 and the solid block 6 are all connected by screws.

[0028] When supporting and reinforcing the bridge, firstly, weld the weldment 3 to the designated position on the pier column 1, then place the two fastening plates 4 on the two weldments 3 respectively and clamp the pier column 1 with the two fastening plates 4, then pass the second anchor rod 10 through the two through holes and screw the second fastening cap 11 on the second anchor rod 10, at this time, the two fastening plates 4 can be clamped and fixed on the pier column 1, then attach the anti-overturning support 701 to the designated position at the bottom of the box girder 2, then pass the first anchor rod 703 through the anti-overturning support 701 and screw it into the inside of the box girder 2, and then fasten the first fastening cap 11 to the second anchor rod 10. The cap 704 is screwed onto the first anchor rod 703 to fix the anti-overturning support 701 at the bottom of the box girder 2. Finally, the buffer assembly 8 is installed between the fastening plate 4 and the solid block 6 by screws. At this time, the bridge can be supported and reinforced to prevent the bridge from overturning. When a vehicle travels on the bridge deck and causes the bridge to vibrate, it will drive the piston rod 803 to slide along the piston cylinder 802 and compress the buffer spring 805 and the air inside the piston cylinder 802, thereby buffering the vibration, thereby reducing the wear between parts and the loosening of anchor rods, and increasing the service life of the bridge.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-overturning single-column pier bridge structure, comprising a pier column, a second anchor rod and two semicircular rings, characterized in that: A box beam is installed on the top of the pier column, and two symmetrical weldments are welded on the outer surface of the pier column, and the two weldments are in contact with each other. Fastening plates are placed on the upper surfaces of the two weldments, and the two fastening plates are connected by a second anchor rod. The two semicircular rings are symmetrically arranged on the outside of the pier column, and solid blocks are fixedly connected to the outer sides of the two semicircular rings respectively. The solid blocks are connected to the box beam through a reinforcement component, and the solid blocks are connected to the fastening plates through a buffer component.

2. The anti-overturning single-column pier bridge structure according to claim 1, characterized in that: The reinforcement assembly includes an anti-overturning support and two first anchor rods. The anti-overturning support is attached to the bottom of the box beam. One ends of the two first anchor rods pass through the anti-overturning support and are screwed inside the box beam. The two first anchor rods are threaded with first fastening caps, and the two first fastening caps are screwed to the bottom of the anti-overturning support.

3. The anti-overturning single-column pier bridge structure according to claim 2, characterized in that: A reinforcement shaft is fixedly connected to the bottom of the anti-overturning support member, and one end of the reinforcement shaft away from the anti-overturning support member is fixedly connected to the solid block.

4. The anti-overturning single-column pier bridge structure according to claim 3, characterized in that: A plurality of first reinforcement blocks arranged at intervals are fixedly connected to the outer surface of the reinforcement shaft near the bottom, and the first reinforcement blocks are arranged around the outside of the reinforcement shaft, and the first reinforcement blocks are fixedly connected to the solid block, and a plurality of second reinforcement blocks arranged at intervals are fixedly connected to the outer surface of the reinforcement shaft near the top, and the second reinforcement blocks are arranged around the outside of the reinforcement shaft, and the second reinforcement blocks are fixedly connected to the anti-overturning support.

5. The anti-overturning single-column pier bridge structure according to claim 1, characterized in that: The buffer assembly includes a first pad installed on the upper surface of the fastening plate, a side of the first pad away from the fastening plate is fixedly connected to a piston cylinder, a piston rod is slidably connected to the inside of the piston cylinder, and the piston cylinder and the piston rod are elastically connected, a second pad is fixedly connected to the top end of the piston rod, and the second pad is installed at the bottom of the solid block.

6. The anti-overturning single-column pier bridge structure according to claim 5, characterized in that: One end of the piston rod away from the second pad is fixedly connected to a buffer spring, and one end of the buffer spring away from the piston rod is fixedly connected to the inner bottom wall of the piston cylinder, thereby forming an elastic connection between the piston cylinder and the piston rod.

7. The anti-overturning single-column pier bridge structure according to claim 1, characterized in that: The two fastening plates are each provided with a through hole matched with the second anchor rod, and the second anchor rod passes through the two through holes and extends to the outside of the two through holes, and two second fastening caps are threadedly connected to the second anchor rod, and the two fastening plates are each provided with a receiving hole matched with the second fastening cap, and the two second fastening caps are respectively screwed into the inside of the two receiving holes.

8. The anti-overturning single-column pier bridge structure according to claim 1, characterized in that: The inner diameter of the semicircular ring is greater than the outer diameter of the pier column, so that the semicircular ring forms a sliding connection with the pier column.

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