A drop beam prevention based drop reinforcement structure

Abstract

The utility model relates to the field of anti -falling beam, specifically is a kind of based on the drop reinforcement structure of anti -falling beam, including pier, the top of pier is provided with bridge, the inner wall of pier and bridge is all provided with reinforcing mechanism, the reinforcing mechanism includes base, the side of base is contacted with the bottom of bridge, the top of base is fixedly connected with connecting rod, the top of connecting rod is fixedly connected with C-shaped block, the side of sliding plate is fixedly connected with locating plate, the surface of locating plate is contacted with the inner wall of C-shaped block, spring is arranged between the side opposite to bridge of sliding plate;The utility model is set up reinforcing mechanism, due to the non-rigid contact between locating plate and C-shaped block, both can effectively limit beam body too large displacement, prevent falling beam, also can dissipate part seismic energy through slight shaking, reduce the damage of impact load to main body structure and connecting joint.

Description

Technical Field

[0001] This utility model relates to the field of anti-fall beams, specifically a fall-reinforcement structure based on anti-fall beams. Background Technology

[0002] Anti-falling beam devices are an important safety protection measure in bridge engineering. Their main function is to prevent the main beam of the bridge from falling off the piers or abutments when encountering extreme disasters or unexpected loads such as earthquakes, strong winds, vehicle collisions, ship collisions, or uneven foundation settlement, thereby ensuring the overall stability of the bridge and public safety.

[0003] Traditional chain-type anti-fall beams connect bridges and piers with bolts. The chains are made up of multiple hinged links with gaps. When an earthquake causes displacement of the bridge and piers, the chains will repeatedly tighten and loosen, generating violent vibrations. This reciprocating motion causes the links to collide continuously, and the huge impact force is directly transmitted to the bolted connections at both ends without any buffer. This can easily cause the bolts to break due to stress far exceeding their fatigue limits, or to be pulled out of the anchorage zone due to instantaneous high loads, resulting in the failure of the anti-fall function. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional chain-type anti-fall beams connect bridges and piers with bolts. The chains are made up of multiple interlocking links. When an earthquake causes displacement of the bridge and piers, the chains repeatedly tighten and loosen, generating violent vibrations. This reciprocating motion causes continuous impacts between the links, directly transmitting the enormous impact force to the bolted connections at both ends without any buffer. This can easily cause the bolts to break due to stresses far exceeding their fatigue limits, or to be pulled out of the anchorage zone due to instantaneous high loads, resulting in the failure of the anti-fall function. This utility model proposes a fall-prevention reinforcement structure based on the anti-fall beam.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a falling reinforcement structure based on an anti-falling beam, including a bridge pier, a bridge is provided on the top of the bridge pier, and reinforcement mechanisms are provided on the inner walls of the bridge pier and the bridge. The reinforcement mechanism includes a base, one side of which contacts the bottom of the bridge. A connecting rod is fixedly connected to the top of the base, and a C-shaped block is fixedly connected to the top of the connecting rod. A sliding plate is slidably connected to the inner wall of the bridge. A positioning plate is fixedly connected to one side of the sliding plate, and the surface of the positioning plate contacts the inner wall of the C-shaped block. A spring is provided between the sliding plate and the opposite side of the bridge. One end of the spring is fixedly connected to one side of the sliding plate, and the other end of the spring is fixedly connected to the inner wall of the bridge. There are two springs.

[0006] Preferably, a telescopic block is provided between the sliding plate and the side of the bridge opposite to it, with one end of the telescopic block fixedly connected to one side of the sliding plate and the other end fixedly connected to the inner wall of the bridge.

[0007] Preferably, the walls of the bridge and the positioning plate are threaded with positioning pins, and the inner wall of the bridge is provided with a guide groove, the inner wall of the guide groove being in contact with the surface of the C-shaped block.

[0008] Preferably, a first shock-absorbing pad is fixedly connected to one side of each of the two bases, and one side of each of the two first shock-absorbing pads contacts one side of the pier and the bridge, respectively. A second shock-absorbing pad is fixedly connected to the inner wall of each of the two C-shaped blocks, and there are two second shock-absorbing pads. The surface of the positioning plate contacts the surface of the two second shock-absorbing pads.

[0009] Preferably, each of the two bases is provided with a fixing block on one side, one end of the fixing block extends through the inner wall of the base, and a chain is fixedly connected between the two fixing blocks.

[0010] Preferably, one end of each of the two fixed blocks is fixedly connected to a movable plate, and the inner wall of each of the two bases is provided with a movable groove, the surface of the movable plate being in contact with the inner wall of the movable groove.

[0011] The advantages of this utility model are: This invention employs a reinforcement mechanism to insert two C-shaped blocks into the connection between the pier and the bridge. During insertion, the compression causes the positioning plate to move backward, thereby compressing the spring to store energy. Once the C-shaped blocks are in place, the spring pushes the positioning plate back to its original position and locks it into the inner wall of the C-shaped blocks, thus completing the locking. A space is left between the C-shaped blocks and the positioning plate. When earthquakes cause the pier and bridge to shift back and forth, the inner wall of the C-shaped blocks and the positioning plate can slide and sway within a certain range, forming a flexible contact. Due to the non-rigid contact between the positioning plate and the C-shaped blocks, it can effectively limit excessive displacement of the beam and prevent beam collapse. It can also dissipate some seismic energy through slight swaying, reducing the damage of impact loads to the main structure and connection nodes. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a partial structural diagram of the inner wall of the bridge according to the present invention; Figure 3 This is a partial structural schematic diagram of the reinforcement mechanism of this utility model; Figure 4 This is a partial structural diagram of the connecting rod of this utility model.

[0014] In the diagram: 1. Pier; 2. Reinforcing mechanism; 201. Base; 202. Connecting rod; 203. C-block; 204. Positioning plate; 205. Sliding plate; 206. Spring; 3. Bridge; 4. Telescopic block; 5. Positioning pin; 6. Guide groove; 7. First shock absorber; 8. Second shock absorber; 9. Fixing block; 10. Chain; 11. Movable plate; 12. Movable groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0016] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail. This application discloses a drop reinforcement structure based on an anti-fall beam. (Refer to...) Figure 1 , Figure 2 and Figure 3 A falling reinforcement structure based on an anti-falling beam includes a pier 1, a bridge 3 is provided on the top of the pier 1, and a reinforcement mechanism 2 is provided on the inner wall of both the pier 1 and the bridge 3. The reinforcement mechanism 2 includes a base 201, one side of which contacts the bottom of the bridge 3. A connecting rod 202 is fixedly connected to the top of the base 201, and a C-shaped block 203 is fixedly connected to the top of the connecting rod 202. A sliding plate 205 is slidably connected to the inner wall of the bridge 3. A positioning plate 204 is fixedly connected to one side of the sliding plate 205, and the surface of the positioning plate 204 contacts the inner wall of the C-shaped block 203. A spring 206 is provided between the sliding plate 205 and the opposite side of the bridge 3. One end of the spring 206 is fixedly connected to one side of the sliding plate 205, and the other end is fixedly connected to the inner wall of the bridge 3. There are two springs 206. By setting up the reinforcement mechanism 2, two C-shaped blocks 203 are inserted into the bridge pier 1 and... At the connection point of bridge 3, the positioning plate 204 is pushed backward during insertion, thereby compressing the energy stored in the spring 206. When the C-shaped block 203 is inserted into place, the spring 206 pushes the positioning plate 204 to reset and lock into the inner wall of the C-shaped block 203, thus completing the locking. There is space between the C-shaped block 203 and the positioning plate 204. When the ground vibration causes the pier 1 and bridge 3 to move back and forth, the inner wall of the C-shaped block 203 and the positioning plate 204 can slide and shake within a certain range, forming a flexible contact. Due to the non-rigid contact between the positioning plate 204 and the C-shaped block 203, it can effectively limit the excessive displacement of the beam and prevent the beam from falling. It can also dissipate some of the seismic energy through slight shaking, reducing the damage of the impact load to the main structure and connection nodes.

[0017] Reference Figure 2 A telescopic block 4 is provided between the sliding plate 205 and the side opposite to the bridge 3. One end of the telescopic block 4 is fixedly connected to one side of the sliding plate 205, and the other end of the telescopic block 4 is fixedly connected to the inner wall of the bridge 3. By setting the telescopic block 4, the extension and retraction of the spring 206 and the sliding of the positioning plate 204 can be guided, preventing the spring 206 and the positioning plate 204 from shifting during the movement. Reference Figure 3 The walls of both the bridge 3 and the positioning plate 204 are threaded with positioning pins 5. The inner wall of the bridge 3 is provided with a guide groove 6. The inner wall of the guide groove 6 is in contact with the surface of the C-shaped block 203. By setting the positioning pins 5, the positioning plate 204, which is inserted into the C-shaped block 203, can be locked to prevent the positioning plate 204 from accidentally coming loose and to ensure the stability of the locking between the positioning plate 204 and the C-shaped block 203. Reference Figure 3Each of the two bases 201 has a first damping pad 7 fixedly connected to one side. One side of each of the two first damping pads 7 contacts one side of the pier 1 and the bridge 3, respectively. The inner walls of each of the two C-shaped blocks 203 have a second damping pad 8 fixedly connected to them. There are two second damping pads 8. The surface of the positioning plate 204 contacts the surface of the two second damping pads 8. Through the setting of the first damping pads 7 and the second damping pads 8, the first damping pads 7 can reduce the rigid contact between the base 201 and the surface of the pier 1 and the bridge 3, avoid concrete spalling, and reduce vibration transmission. The second damping pads 8 are set on the inner wall of the C-shaped block 203, located between the positioning plate 204 and the C-shaped block 203. They can provide an elastic gap during an earthquake, alleviate the impact between the two during the shaking of the beam, and avoid structural damage caused by hard collision. Reference Figure 4 Each of the two bases 201 has a fixing block 9 on one side. One end of the fixing block 9 extends through the inner wall of the base 201. A chain 10 is fixedly connected between the two fixing blocks 9. Through the setting of the fixing blocks 9 and the chain 10, the two originally independent bases 201 are connected into a whole, forming a complete anti-fall beam force transmission path and forming a flexible connection. Reference Figure 4 Each of the two fixed blocks 9 has a movable plate 11 fixedly connected to one end. The inner walls of the two bases 201 are provided with movable grooves 12. The surface of the movable plate 11 contacts the inner wall of the movable groove 12. Through the setting of the movable plate 11 and the movable groove 12, when the vibration causes the bridge 3 structure to shift, the fixed block 9 moves in the movable groove 12 through the movable plate 11, realizing the variable displacement adaptability of the connection node and preventing the fixed block 9 from cracking due to excessive constraint.

[0018] Working principle: After the bridge 3 is installed on top of the pier 1, the C-shaped blocks 203, connected by the connecting rods 202 to the two bases 201, are inserted into the guide grooves 6 of the pier 1 and the bridge 3 respectively. During the insertion of the C-shaped blocks 203, the arc surface at the front end of the C-shaped blocks 203 will press against the positioning plate 204, causing the positioning plate 204 to gradually move backward along the arc surface of the C-shaped blocks 203. The backward movement of the positioning plate 204 will drive the sliding plate 205 to move backward synchronously. The backward movement of the sliding plate 205 will compress the spring 206. The compressed spring 206 stores elastic potential energy. When the C-shaped blocks 203 are inserted into place, the groove of the C-shaped blocks 203 will align with the position of the compressed positioning plate 204. At this time, the compressed spring 206 releases energy, pushing the positioning plate 204 to reset and lock into the interior of the C-shaped blocks 203, achieving automatic locking. The operator then uses the positioning pin 5 to connect the positioning plate 204 to the bridge pier 3. 3 and pier 1 are locked together to prevent the positioning plate 204 from slipping accidentally and to ensure the reliability of the connection. When an earthquake occurs, pier 1 and bridge 3 will shake, and the positioning plate 204 connected to the inner wall will move synchronously. The space left between the positioning plate 204 and the C-shaped block 203 allows shaking to occur, avoiding the impact force caused by rigid contact. At the same time, the first shock-absorbing pad 7 forms a buffer layer between the base 201 and pier 1 and bridge 3 to prevent the concrete on the surface of pier 1 and bridge 3 from falling off. The second shock-absorbing pad 8 forms a buffer layer on the inner wall of the C-shaped block 203 to absorb the vibration energy when the positioning plate 204 contacts the C-shaped block 203 due to vibration, reducing stress transmission. Meanwhile, the fixed block 9 connected to the chain 10 will slide in the movable groove 12 of the base 201 through the movable plate 11, which not only ensures the necessary freedom of movement of the chain, but also ensures that the chain 10 can be subjected to normal force within the set range, maintaining the stability of the overall connection.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A drop-resistant reinforcement structure based on an anti-fall beam, comprising a bridge pier (1), characterized in that: A bridge (3) is provided on the top of the pier (1), and a reinforcement mechanism (2) is provided on the inner wall of both the pier (1) and the bridge (3). The reinforcement mechanism (2) includes a base (201), one side of which contacts the bottom of the bridge (3), a connecting rod (202) is fixedly connected to the top of the base (201), a C-shaped block (203) is fixedly connected to the top of the connecting rod (202), a sliding plate (205) is slidably connected to the inner wall of the bridge (3), a positioning plate (204) is fixedly connected to one side of the sliding plate (205), the surface of the positioning plate (204) contacts the inner wall of the C-shaped block (203), a spring (206) is provided between the sliding plate (205) and the opposite side of the bridge (3), one end of the spring (206) is fixedly connected to one side of the sliding plate (205), and the other end of the spring (206) is fixedly connected to the inner wall of the bridge (3), and there are two springs (206).

2. The drop reinforcement structure based on the anti-fall beam according to claim 1, characterized in that: A telescopic block (4) is provided between the sliding plate (205) and the side opposite to the bridge (3). One end of the telescopic block (4) is fixedly connected to one side of the sliding plate (205), and the other end of the telescopic block (4) is fixedly connected to the inner wall of the bridge (3).

3. The drop reinforcement structure based on the anti-fall beam according to claim 1, characterized in that: The walls of the bridge (3) and the positioning plate (204) are threaded with positioning pins (5). The inner wall of the bridge (3) is provided with a guide groove (6), and the inner wall of the guide groove (6) is in contact with the surface of the C-shaped block (203).

4. The drop reinforcement structure based on the anti-fall beam according to claim 1, characterized in that: One side of each of the two bases (201) is fixedly connected to a first shock-absorbing pad (7), and one side of each of the two first shock-absorbing pads (7) is in contact with one side of the pier (1) and the bridge (3), respectively. The inner walls of each of the two C-shaped blocks (203) are fixedly connected to a second shock-absorbing pad (8), and there are two second shock-absorbing pads (8). The surface of the positioning plate (204) is in contact with the surface of the two second shock-absorbing pads (8).

5. The drop reinforcement structure based on the anti-fall beam according to claim 1, characterized in that: Each of the two bases (201) is provided with a fixing block (9) on one side. One end of the fixing block (9) extends through the inner wall of the base (201), and a chain (10) is fixedly connected between the two fixing blocks (9).

6. The drop reinforcement structure based on the anti-fall beam according to claim 5, characterized in that: One end of each of the two fixed blocks (9) is fixedly connected to a movable plate (11), and the inner wall of each of the two bases (201) is provided with a movable groove (12), and the surface of the movable plate (11) is in contact with the inner wall of the movable groove (12).

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