A seismic-resistant reinforced memory alloy bridge bearing

Abstract

The present invention discloses an earthquake-resistant reinforced memory alloy bridge bearing, comprising: a lower end connecting plate, which is used to connect the main components of the bridge pier, the upper end of the lower end connecting plate is provided with a resistance base, the upper end of the lower end connecting plate is also connected to a plurality of groups of compression springs, the upper end of the compression spring is provided with a connecting support seat, the upper end of the connecting support seat is provided with a load-bearing shaft, the lower end of the load-bearing shaft is connected with a high-resistance bow plate, the high-resistance bow plate extends to the left and right sides of the load-bearing shaft, the left and right sides of the high-resistance bow plate are connected with a connecting rotating shaft, the earthquake-resistant reinforced memory alloy bridge bearing, using the earthquake-resistant structure of the bow plate and the earthquake-resistant structure of four springs in parallel to significantly improve the earthquake resistance of the bridge bearing, can fully buffer the impact of the bridge deck, and significantly improve the quality, and at the same time, a large amount of high-strength memory alloy is used in the earthquake-resistant structure, which can provide sufficient buffering while greatly improving the life of the equipment, thereby replacing the existing bridge bearing.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, in particular to an earthquake-resistant reinforced memory alloy bridge support. Background Art

[0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It is located between the bridge and the pad stone. It can fully absorb the load and deformation borne by the superstructure of the bridge, avoid fatigue damage of the rigid structure due to long-term activities, and thus significantly improve the service life of the bridge. It is an important force transmission device of the bridge.

[0003] As disclosed in application number 201711073415.1, in order to overcome the deficiencies of existing road and bridge bearings, the present invention provides a road and bridge bearing, which includes a base, a pillar, a receiving seat, a sub-bracket, a buffer seat, a shock absorbing device, a placement block, a pressure sensor, and a material analyzer; the road and bridge bearing can accurately determine the pressure exerted on the bridge bearing and the degree of material erosion, which is helpful for the inspection and maintenance of the bridge.

[0004] The above-mentioned bridge bearings also have the following defects. Although an overly long buffer seat can have a good shock-absorbing effect, an excessively long supporting torque will additionally increase the load on the pier box and the bridge. The lifespan is still limited under long-term use. In addition, since the electronic equipment cannot be adequately protected, the electronic equipment will gradually be corroded by the environment. In addition, a large amount of metal materials are used, and metal fatigue may occur after long-term use. Metal fatigue cannot be detected by the equipment, which may eventually lead to breakage and cause accidents.

[0005] In view of this, the existing structure and defects are studied and improved, and an earthquake-resistant reinforced memory alloy bridge bearing is proposed, in order to achieve a more practical purpose. Summary of the invention

[0006] The object of the present invention is to provide a seismic-resistant reinforced memory alloy bridge bearing to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a seismic reinforced memory alloy bridge bearing, comprising:

[0008] The lower end connecting plate is used to connect the main components of the bridge pier. The upper end of the lower end connecting plate is provided with a resistance base. The upper end of the lower end connecting plate is also connected to multiple groups of compression springs. The upper end of the compression spring is provided with a connecting support seat. The upper end of the connecting support seat is provided with a load-bearing shaft. The lower end of the load-bearing shaft is connected with a high-resistance bow plate. The high-resistance bow plate extends to the left and right sides of the load-bearing shaft. The left and right sides of the high-resistance bow plate are connected with connecting rotating shafts.

[0009] Preferably, an extension pin is provided at the lower end of the lower end connecting plate for further reinforcing the connection with the bridge pier.

[0010] Preferably, a memory sensing plate for resisting pressure and facilitating sensor detection is provided inside the resistive base, and the material of the memory sensing plate is nickel-titanium alloy. A vibration sensor for sensing the vibration of the support and a load-bearing sensor for detecting the deformation of the memory sensing plate are attached to the lower end of the memory sensing plate. A controller for processing data and a storage battery for power supply are also provided inside the resistive base, and the vibration sensor and the load-bearing sensor are connected to the controller via wires.

[0011] Preferably, the material of the compression spring is nickel-titanium alloy.

[0012] Preferably, the controller is provided with a communication module for wirelessly transmitting data.

[0013] Preferably, an extension push head is provided at the lower end of the connecting support seat, and the extension push head extends to the inner side of the resistive base and fits against the upper surface of the detection memory sensor plate.

[0014] Preferably, the lower end of the load-bearing shaft is provided with a connecting hoop for fixing the high-resistance bow plate.

[0015] Preferably, the high-resistance bow plate is formed by a plurality of groups of nickel-titanium alloy steel bars, and a reinforcing steel hoop is provided on the outer side of the bow plate to enhance its strength.

[0016] Preferably, a bridge connecting plate for connecting a bridge is provided at the upper end of the connecting shaft.

[0017] Preferably, a plurality of sets of fixing steel bars for strengthening the grip with cement are provided on the outer side of the extension pin.

[0018] Compared with the existing technology, the beneficial effects of the present invention are: the seismic-resistant reinforced memory alloy bridge bearing utilizes the bow plate seismic structure and the four-spring parallel seismic structure to significantly improve the seismic resistance of the bridge bearing, can fully buffer the impact of the bridge deck, and significantly improve the quality. At the same time, a large amount of high-strength memory alloy is used in the seismic structure, which can provide sufficient buffering while greatly improving the life of the equipment, thereby replacing the existing bridge bearings.

[0019] 1. Use high-resistance bow plate. The high-resistance bow plate can use its structural characteristics to greatly offset the impact force in all directions of the upper end. At the same time, because it uses memory alloy, its shock absorption ability and service life are greatly improved. After the shock absorption by the high-resistance bow plate, it can also be further damped by the compression spring, which significantly improves the shock absorption effect and service life of the equipment;

[0020] 2. By extending the push head into the resistant base, the pressure generated at the upper end will cause the push head to press tightly against the memory sensor plate. Due to direct contact, the memory sensor plate can directly transmit the vibration of the upper end and obtain a signal through the vibration sensor. At the same time, the load-bearing sensor is arranged at its lower end and can directly receive the pressure it is subjected to, and collects and processes the signal through the controller to obtain the load-bearing capacity and abnormal movement of the bearing, and outputs the signal through the communication module, so that the working condition of the bridge can be received at a long distance, which is convenient for the inspection and maintenance of the bridge bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the front view structure of the present invention;

[0023] Figure 3 It is a schematic diagram of a cross-sectional structure of a stent of the present invention;

[0024] Figure 4 It is a front view structural schematic diagram of the shock absorbing part of the present invention.

[0025] In the figure: 1. Lower end connecting plate; 2. Resistance base; 4. Compression spring; 5. Connecting support seat; 6. Load-bearing shaft; 7. High-resistance bow plate; 8. Connecting shaft; 9. Bridge connecting plate; 10. Extended push head; 11. Extended pin column; 12. Memory sensor plate; 13. Vibration sensor; 14. Load-bearing sensor; 15. Energy storage battery; 16. Controller; 18. Strengthening steel hoop; 17. Communication module; 19. Fixed steel bar; 20. Connecting hoop; 21. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-4A seismic reinforced memory alloy bridge bearing comprises: a lower end connecting plate 1, which is used to connect the main components of the bridge pier. The upper end of the lower end connecting plate 1 is provided with a resistant base 2. The upper end of the lower end connecting plate 1 is also connected to multiple groups of compression springs 4. The upper end of the compression spring 4 is provided with a connecting support seat 5. The upper end of the connecting support seat 5 is provided with a load-bearing shaft 6. The lower end of the load-bearing shaft 6 is connected with a high-resistance bow plate 7. The high-resistance bow plate extends to the left and right sides of the load-bearing shaft 6. The left and right sides of the high-resistance bow plate 7 are connected with a connecting rotating shaft 8. The lower end of the lower connecting plate 1 is provided with an extended pin 11 for further reinforcing the connection with the pier, which can extend into the interior of the cement pier and be cast and fixed with the cement pier, thereby greatly improving its stability. The interior of the resistance base 2 is provided with a memory sensing plate 12 for resisting pressure and facilitating sensor detection. The material of the memory sensing plate 12 is nickel-titanium alloy. The lower end of the memory sensing plate 12 is attached with a vibration sensor 13 for sensing the vibration of the support and a load-bearing sensor 14 for detecting the deformation of the memory sensing plate 12. The interior of the resistance base 2 is also provided with a controller 16 for processing data and an energy storage battery 15 for power supply. The vibration sensor 13 and the load-bearing sensor 14 are connected to the controller 16 through wires. The extended push head 10 presses the memory sensing plate 12 tightly. Due to direct contact, the memory sensing plate 12 can directly transmit the vibration of the upper end and obtain a signal through the vibration sensor 13. At the same time, the load-bearing sensor 14 is arranged at its lower end and can directly receive the pressure it is subjected to, and collects and processes the signal through the controller 16, thereby obtaining the load-bearing and abnormal movement of the support.

[0028] See also Figure 1-4 , a seismic-resistant reinforced memory alloy bridge support, the material of the compression spring 4 is nickel-titanium alloy, which has greater rebound ability than traditional materials and is not easy to deform, thereby significantly improving the life of the spring, and the controller 16 is provided with a communication module 17 for wireless data transmission, and through the communication module 17, the signal is output, so that the working condition of the bridge can be received at a long distance, which is convenient for the inspection and maintenance of the bridge support. The lower end of the connecting support seat 5 is provided with an extension push head 10, which extends to the inner side of the resistance base 2 and fits the upper surface of the detection memory sensor plate 12. The lower end of the load-bearing shaft 6 is provided with a connecting hoop 20 for fixing the high-resistance bow plate 7. The high-resistance bow plate 7 can use its structural characteristics to greatly offset the impact force in all directions of the upper end. At the same time, because it uses memory alloy, its shock absorption ability and service life are greatly improved. After the shock absorption through the high-resistance bow plate 7, it can also be further damped through the compression spring 4, significantly improving the shock absorption effect and service life of the equipment. The high-resistance bow plate 7 is made of multiple groups of nickel-titanium alloy steel bars, and a reinforcing steel hoop 18 is provided on the outer side of the bow plate 7 to enhance its strength. A bridge connecting plate 9 for connecting the bridge is provided at the upper end of the connecting shaft 8. Multiple groups of fixed steel bars 19 for strengthening the grip with cement are provided on the outer side of the extension pin 11.

[0029] In summary: the bridge support is installed on the bridge pier with the lower end connecting plate 1, the lower end connecting plate 1 and the extension pin 11 are an integrated structure, the extension pin 11 extends into the cement pier, and is tightly attached to the cement by fixing the steel bar 19. The lower end connecting plate 1 is supported by four groups of compression springs 4 to connect the support seat 5, and the compression springs 4 are used to reduce the impact force. The lower end connecting plate 1 maintains the horizontal lifting stability through the resistance base 2, and the extension push head 10 connected to the support seat 5 extends into the resistance base 2 and is directly attached to the memory sensor plate 12 inside it. The memory sensor The response plate 12 offsets the impact force and vibration brought by the extended push head 10, and obtains a signal through the vibration sensor 13. At the same time, the load-bearing sensor 14 is arranged at its lower end to directly receive the pressure it is subjected to, and the signal is processed by the controller 16 and sent out by the communication module 17. The load-bearing shaft 6 is installed on the connecting support seat 5. The load-bearing shaft 6 is connected to the high-resistance bow plate 7 through the connecting hoop 20. The high-resistance bow plate 7 is reinforced by the reinforcing steel hoop 18. The high-resistance bow plate 7 utilizes its own structure and material characteristics to fully absorb the elastic force, and is connected through the connecting shaft 8 and the bridge connecting plate 9.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seismic reinforced memory alloy bridge bearing, characterized in that: include: The lower end connecting plate (1) is used to connect the main components of the bridge pier. The upper end of the lower end connecting plate (1) is provided with a resistance base (2). The upper end of the lower end connecting plate (1) is also connected to a plurality of groups of compression springs (4). The upper end of the compression spring (4) is provided with a connection support seat (5). The upper end of the connection support seat (5) is provided with a load-bearing shaft (6). The lower end of the load-bearing shaft (6) is connected with a high-resistance bow plate (7). The high-resistance bow plate extends to the left and right sides of the load-bearing shaft (6). The left and right sides of the high-resistance bow plate (7) are connected with a connection shaft (8). The lower end of the lower end connecting plate (1) is provided with a connection shaft (9) for further strengthening the connection with the bridge pier. The resistive base (2) is provided with an extended pin (11) connected thereto, a memory sensing plate (12) for resisting pressure and facilitating sensor detection is provided inside the resistive base (2), the material of the memory sensing plate (12) is nickel-titanium alloy, a vibration sensor (13) for sensing vibration of the support and a load-bearing sensor (14) for detecting deformation of the memory sensing plate (12) are attached to the lower end of the memory sensing plate (12), a controller (16) for processing data and an energy storage battery (15) for supplying power are also provided inside the resistive base (2), and the vibration sensor (13) and the load-bearing sensor (14) are connected to the controller (16) through a wire.

2. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 1, characterized in that: The material of the compression spring (4) is nickel-titanium alloy.

3. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 2, characterized in that: The controller (16) is provided with a communication module (17) for wireless data transmission.

4. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 3, characterized in that: An extension push head (10) is provided at the lower end of the connection support seat (5), and the extension push head (10) extends to the inner side of the resistance base (2) and fits on the upper surface of the detection memory sensor plate (12).

5. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 4, characterized in that: The lower end of the load-bearing shaft (6) is provided with a connecting hoop (20) for fixing the high-resistance bow plate (7).

6. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 5, characterized in that: The high-resistance bow plate (7) is formed by binding a plurality of groups of nickel-titanium alloy steel bars, and a reinforcing steel hoop (18) is provided on the outer side of the bow plate (7) to enhance its strength.

7. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 6, characterized in that: The upper end of the connecting shaft (8) is provided with a bridge connecting plate (9) for connecting the bridge.

8. The earthquake-resistant reinforced memory alloy bridge bearing according to claim 7, characterized in that: The outer side of the extension pin (11) is provided with a plurality of sets of fixing steel bars (19) for strengthening the gripping force with cement.

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