Ship-collision-resistant reinforcing structure for column type pier bridge
By adding a prefabricated steel support structure on the bridge pier, the problem that existing column pier bridges are prone to collapse when ships collided is solved, significantly improving the collision resistance of the bridge pier, reducing displacement and delaying bridge collapse.
Patent Information
- Application Number
- CN202421369251.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-14
AI Technical Summary
Existing column-type pier bridges are prone to large displacements when ships collided, resulting in the overall collapse of the bridge structure, and existing collision-proof facilities are difficult to effectively improve the bridge's collision resistance.
Prefabricated assembled steel support structures are added to the bridge pier, including anti-collision steel pipes, cross braces, oblique braces and node plates. Through the combination of these structures, the overall collision resistance of the bridge pier can be improved and the horizontal displacement of the bridge pier is reduced.
By adding a steel support structure, the collision resistance of the bridge pier has been significantly improved, reducing the horizontal displacement of the bridge pier, delaying and even avoiding the collapse of the bridge structure under the impact of the ship.
Smart Images
Figure CN222796182U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge construction engineering, and in particular relates to a ship collision resistance reinforcement structure of a column pier bridge. Background Art
[0002] With the development of larger ships, the problem of ship collision with bridges has become increasingly prominent, and ship-bridge collision accidents directly endanger the safety of life and property. Most bridges on inland waterways have piers in the water, and the lower structure is mainly column piers. After analyzing previous ship collision accidents on column pier bridges, it was found that ship collisions can cause large displacement of bridge piers, causing the overall collapse of the bridge structure.
[0003] Conventional column pier anti-collision structures are generally divided into two types: independent anti-collision facilities and attached anti-collision facilities. Independent anti-collision facilities block ships outside the bridge, that is, the impact force transmitted to the bridge is zero, while attached anti-collision facilities reduce part of the impact force through the deformation of the facilities, and most of the impact force is still borne by the main body of the bridge. Actual engineering cases show that if independent anti-collision facilities are to completely avoid contact between ships and bridges, the anti-collision facilities must be made very large, otherwise they will cause significant deformation and damage; attached anti-collision facilities can only provide durability protection and cannot substantially improve the anti-collision ability of the bridge itself.
[0004] Therefore, it is necessary to improve the anti-collision ability of the bridge itself by setting up simple and effective anti-collision facilities, so as to minimize the risk level and impact of ship-bridge collision accidents. Utility Model Content
[0005] Based on this, the utility model provides a ship collision resistance reinforcement structure for a columnar pier bridge. By adding a prefabricated assembled steel support structure on the pier, the overall collision resistance of the pier is improved, the horizontal displacement of the pier is reduced, and the collapse of the bridge structure under the action of a ship collision is delayed or even avoided.
[0006] To achieve the above purpose, the solution of the utility model is:
[0007] A ship collision resistance reinforcement structure of a column pier bridge, comprising:
[0008] The first steel support structure includes: two first anti-collision steel pipes, two first cross braces and a first middle cross brace, the two first anti-collision steel pipes are respectively sleeved on two oppositely arranged pier columns, the two ends of each of the first cross braces are connected to the two first anti-collision steel pipes through a node plate 1, and the two first cross braces are oppositely and spaced apart, one of the first cross braces is arranged close to the bottom of the pier cap beam, and the other first cross brace is arranged close to the top of the pier pedestal, the two ends of the first middle cross brace are respectively connected to the two first anti-collision steel pipes and are located between the two first cross braces, a node plate 2 is provided in the middle position of the first middle cross brace, and each of the node plates 1 is connected to the node plate 2 through a diagonal brace.
[0009] In one of the embodiments, it also includes a second steel support structure, which includes: two second anti-collision steel pipes, two second cross braces and a second middle cross brace, the two second anti-collision steel pipes are respectively sleeved on two oppositely arranged pier foundation piles, the two ends of each of the second cross braces are connected to the two second anti-collision steel pipes through a node plate 1, and the two second cross braces are opposite and spaced apart, one of the first cross braces is arranged close to the bottom of the pier cap, and the other first cross brace is close to the concrete leveling layer, the two ends of the second middle cross brace are respectively connected to the two second anti-collision steel pipes and are located between the two second cross braces, a node plate 2 is provided in the middle position of the second middle cross brace, and each of the node plates 1 is connected to the node plate 2 through a diagonal brace.
[0010] In one of the embodiments, the first anti-collision steel tube and the second anti-collision steel tube are both formed by splicing two semicircular tubes, and wings are respectively provided on both sides of the two semicircular tubes. The two semicircular tubes are fixedly connected by the wings on both sides to form a circular frame and are placed on the outer surfaces of the pier columns and the pier foundation piles.
[0011] In one of the embodiments, the wings of the two semicircular tubes are provided with a plurality of bolt holes in one-to-one correspondence, and the wings on both sides of the two semicircular tubes are fixedly connected with each other by bolts.
[0012] In one embodiment, a buffer component is further included, which includes a plurality of springs and an anti-collision plate. The plurality of springs are evenly and spacedly installed on the outer surface of the semicircular tube, the anti-collision plate is concentric with the semicircular tube and is arranged opposite to it, and the anti-collision plate is connected to the plurality of springs.
[0013] In one of the embodiments, a pressure sensor is further included, and the pressure sensor is connected to the spring to detect the spring deformation pressure.
[0014] In one of the embodiments, an alarm device is further included. The pressure sensor transmits a signal to the alarm device. The alarm device receives the signal and triggers an alarm to remind the ship that the ship has hit the bridge. The alarm device can be a buzzer or other alarm.
[0015] In one embodiment, the anti-collision plate comprises a plurality of small steel plates, and the small steel plates correspond to and are connected to the springs in a one-to-one manner.
[0016] The beneficial effects of the utility model include: by adding a prefabricated and assembled steel support structure to the bridge pier, the overall anti-collision ability of the bridge pier is improved, the horizontal displacement of the bridge pier is reduced, and the collapse of the bridge structure under the action of a ship collision is delayed or even avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic elevation diagram of the ship collision resistance reinforcement structure of the column type pier bridge of the utility model.
[0018] Figure 2 It is a schematic diagram of the AA section of the ship collision resistance reinforcement structure of the column type pier bridge of the utility model.
[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the cross brace.
[0020] FIG. 4( a ) is a schematic diagram of the structure of two semicircular tubes; FIG. 4( b ) is a schematic diagram of the assembly of two semicircular tubes.
[0021] Among them: 1- pier cap beam, 2- horizontal brace, 3- diagonal brace, 4- node plate one, 5- node plate two, 6- stiffening plate, 7- anti-collision steel pipe, 8- pier column, 9- pier cap, 10- pier foundation pile, 11- pebbles, 12- concrete leveling layer, 13- crushed stone cushion layer. DETAILED DESCRIPTION
[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.
[0023] See also Figures 1 to 3The utility model relates to a ship collision-resistant reinforcement structure for a column-type pier bridge, the structure comprising a steel pipe 7 (two semicircular pipes spliced by bolts) installed on a pier column 8 and a pier foundation pile 10, a cross brace 2, a diagonal brace 3, a node plate 1 4 and a node plate 2 5 transversely connected to the anti-collision steel pipe 7, and a stiffening plate 6 for stabilizing the foot of the anti-collision steel pipe 7; the cross brace 2 is H-shaped in cross section and is welded to the node plate 1 4, the diagonal brace 3 is groove-shaped in cross section and is welded to the node plate 2 5, or can be connected by bolts. Before installation, a dry working surface should be formed within a certain range of the pier area, the underwater health inspection and disease treatment of the pier foundation pile 10 should be carried out, a crushed stone cushion layer 13 should be spread, and then a concrete leveling layer 12 should be poured. In order to reduce scouring, pebbles 11 should be laid on the concrete leveling layer 12. The cross brace 2, the diagonal brace 3, the node plate 1 4 and the node plate 2 5 are all made of steel structure.
[0024] For example, a ship collision-resistant reinforcement structure of a column-type pier bridge includes a first steel support structure, which includes: two first anti-collision steel pipes, two first cross braces and a first middle cross brace. The two first anti-collision steel pipes are respectively sleeved on two oppositely arranged pier columns 8, and the two ends of each first cross brace are connected to the two first anti-collision steel pipes through a node plate 1 4, and the two first cross braces are opposite and spaced apart, one of the first cross braces is arranged close to the bottom of the pier cap beam 1, and the other first cross brace is arranged close to the top of the pier cap 9, the two ends of the first middle cross brace are respectively connected to the two first anti-collision steel pipes and are located between the two first cross braces, and a node plate 2 5 is provided in the middle position of the first middle cross brace, and each node plate 1 4 is connected to the node plate 2 5 through a diagonal brace 3. The first middle cross brace and the node plate 2 can be welded or integrally formed.
[0025] In one embodiment, the anti-ship collision reinforcement structure of the column pier bridge also includes a second steel support structure, which includes: two second anti-collision steel pipes, two second cross braces and a second middle cross brace, the two second anti-collision steel pipes are respectively placed on two oppositely arranged pier foundation piles 9, the two ends of each second cross brace are connected to the two second anti-collision steel pipes through a node plate 1, and the two second cross braces are opposite and spaced apart, one of the first cross braces is set close to the bottom of the pier cap 9, and the other first cross brace is close to the concrete leveling layer 12, the two ends of the second middle cross brace are respectively connected to the two second anti-collision steel pipes and are located between the two second cross braces, a node plate 2 5 is provided in the middle position of the second middle cross brace, and each of the node plates 1 4 is connected to the node plate 2 5 through a diagonal brace 3.
[0026] By adding prefabricated and assembled steel support structures to the pier columns 8 and the pier foundation piles 9, the overall anti-collision capability of the piers is improved, the horizontal displacement of the piers is reduced, and the collapse of the bridge structure under the action of a ship collision is delayed or even avoided.
[0027] As shown in FIG4 , in one embodiment, the first anti-collision steel tube and the second anti-collision steel tube are both formed by splicing two semicircular tubes, and wings are respectively provided on both sides of the two semicircular tubes. The two semicircular tubes are fixedly connected by the wings on both sides to form a circular frame and are sleeved on the outer surface of the pier column and the pier foundation pile. The wings of the two semicircular tubes are provided with a plurality of bolt holes corresponding to each other, and the wings on both sides of the two semicircular tubes are fixedly connected by bolts.
[0028] In one embodiment, the anti-ship collision reinforcement structure of the column pier bridge further includes a buffer component, the buffer component includes a plurality of springs and an anti-collision sheet, the plurality of springs are evenly and spacedly installed on the outer surface of the semicircular tube, the anti-collision sheet is concentric with the semicircular tube and arranged oppositely, and the anti-collision sheet is connected to the plurality of springs. The buffer component is deformed and dissipated to reduce a portion of the impact force, and for micro-collision events, the buffer component can directly avoid collision with the anti-collision steel tube. The anti-collision sheet is a steel structure.
[0029] In one embodiment, the buffer assembly further includes a pressure sensor, and the outer surface of the semicircular tube is connected to the spring through the pressure sensor to detect the deformation pressure of the spring. The pressure sensor can obtain the impact force of the ship to evaluate the damage of the impact force to the column pier bridge. For example, the pressure sensor transmits the impact force of the ship to the service center, and the service center evaluates the damage of the impact force to the column pier bridge based on the detected pressure value and the appearance of the bridge.
[0030] In one embodiment, the anti-ship collision reinforcement structure of the column pier bridge also includes an alarm device. The pressure sensor transmits a signal to the alarm device. The alarm device receives the signal and triggers an alarm to remind the ship that it has collided with the bridge. The ship's operating personnel can take corresponding anti-collision measures in time. The alarm device can be a buzzer or other alarm.
[0031] In one embodiment, the anti-collision plate comprises a plurality of small steel plates, and the small steel plates correspond to and are connected to the springs in a one-to-one manner to reduce damage to the overall structure of the bridge.
[0032] The above description of the embodiments is to facilitate the understanding and application of the present invention by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.
Claims
1. A ship collision resistance reinforcement structure for a column pier bridge, characterized in that: include: The first steel support structure includes: two first anti-collision steel pipes, two first cross braces and a first middle cross brace, the two first anti-collision steel pipes are respectively sleeved on two oppositely arranged pier columns, the two ends of each of the first cross braces are connected to the two first anti-collision steel pipes through a node plate 1, and the two first cross braces are oppositely and spaced apart, one of the first cross braces is arranged close to the bottom of the pier cap beam, and the other first cross brace is arranged close to the top of the pier pedestal, the two ends of the first middle cross brace are respectively connected to the two first anti-collision steel pipes and are located between the two first cross braces, a node plate 2 is provided in the middle position of the first middle cross brace, and each of the node plates 1 is connected to the node plate 2 through a diagonal brace.
2. The ship collision resistance reinforcement structure of the column pier bridge according to claim 1 is characterized in that: It also includes a second steel support structure, which includes: two second anti-collision steel pipes, two second cross braces and a second middle cross brace, the two second anti-collision steel pipes are respectively sleeved on two oppositely arranged pier foundation piles, the two ends of each of the second cross braces are connected to the two second anti-collision steel pipes through a node plate 1, and the two second cross braces are opposite and spaced apart, one of the first cross braces is arranged close to the bottom of the pier cap, and the other first cross brace is close to the concrete leveling layer, the two ends of the second middle cross brace are respectively connected to the two second anti-collision steel pipes and are located between the two second cross braces, a node plate 2 is provided in the middle position of the second middle cross brace, and each of the node plates 1 is connected to the node plate 2 through a diagonal brace.
3. The ship collision resistance reinforcement structure of the column pier bridge according to claim 2 is characterized in that: The first anti-collision steel pipe and the second anti-collision steel pipe are both formed by splicing two semicircular tubes, and wings are respectively provided on both sides of the two semicircular tubes. The two semicircular tubes are fixedly connected by the wings on both sides to form a circular frame and are placed on the outer surface of the pier column and the pier foundation pile.
4. The ship collision resistance reinforcement structure of the column pier bridge according to claim 3 is characterized in that: The wings of the two semicircular tubes are provided with a plurality of bolt holes in one-to-one correspondence, and the wings on both sides of the two semicircular tubes are fixedly connected and docked by bolts.
5. The ship collision resistance reinforcement structure of the column pier bridge according to claim 3 is characterized in that: It also includes a buffer component, which includes a plurality of springs and an anti-collision plate. The plurality of springs are evenly and spacedly installed on the outer surface of the semicircular tube. The anti-collision plate is concentric with and opposite to the semicircular tube, and the anti-collision plate is connected to the plurality of springs.
6. The ship collision resistance reinforcement structure of the column pier bridge according to claim 5 is characterized in that: A pressure sensor is also included, and the pressure sensor is connected to the spring to detect the spring deformation pressure.
7. The ship collision resistance reinforcement structure of the column pier bridge according to claim 6 is characterized in that: It also includes an alarm device, the pressure sensor transmits a signal to the alarm device, and the alarm device receives the signal and triggers an alarm to remind the ship that the ship has hit the bridge. The alarm device is a buzzer.
8. The ship collision resistance reinforcement structure of the column pier bridge according to claim 5 is characterized in that: The anti-collision sheet comprises a plurality of small steel sheets, and the small steel sheets correspond to and are connected with the springs in one-to-one quantity.