Semi-rigid pier beam connecting structure

Abstract

The utility model relates to a semi-rigid pier-beam connecting structure, which belongs to the technical field of bridge engineering and comprises a beam body, piers are arranged at the bottom of the beam body at equal intervals, fixing frames are arranged on two sides of each pier, and sliding parts are mounted in the fixing frames in a sliding manner. The utility model has the beneficial effects that when the beam body is in an up-and-down micro-vibration state, the beam body is pressed downwards towards the direction of the reinforcing support plate, so that the corresponding sliding piece is pushed to slide in the fixed frame by virtue of the connecting rod, and wind load or vibration load borne by the beam body can be effectively decomposed and unloaded under the action of the bridge damper; compared with a traditional spring mode, the damper for the bridge can reduce vibration through the damping characteristic, so that the whole beam body has certain stability, the service life of the beam body can be prolonged, the situation that a hogging moment area of the pier top of the bridge pier is prone to cracking can be reduced, and the safety of the beam body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a semi-rigid pier-beam connection structure. Background Technique

[0002] In the development history of bridges, the bridge pier is a very important part, which determines the load capacity of the bridge. With the increase in road traffic volume, the loads on highways and bridges have risen, and their bearing capacities are approaching saturation. Many bridges are out of service due to serious overloading problems. The bridge pier is the intermediate support structure other than the abutments connecting to the embankments at both ends in a bridge with two or more spans, and must have sufficient strength and stability.

[0003] After retrieval, a Chinese patent discloses a semi-rigid pier-beam connection structure that does not transfer bending moment (authorization publication number CN216515092U), including a beam body and a bridge pier. A support seat is fixedly installed on the top surface of the bridge pier. A spring is arranged between the support seat and the beam body. One end of the spring is fixedly connected to the top surface of the support seat, and the other end is fixedly connected to the bottom surface of the beam body. An installation groove is vertically opened on the top surface of the support seat. A column is detachably arranged in the installation groove. The column passes through the spring. An installation hole is opened at a position corresponding to the column on the beam body. A sliding rod is arranged in the installation hole. The sliding rod extends vertically downward. A fixing component for connecting the column is sleeved on the sliding rod. Although this patented technology can reduce the cracking condition of the negative moment area at the top of the bridge pier and improve the safety of the bridge pier.

[0004] However, there are still some drawbacks in the actual use of the above device. The more obvious one is that in the above semi-rigid pier-beam connection structure, a semi-rigid connection is formed through the spring and the detachable design. The setting of the spring makes the connection between the entire bridge and the bridge pier unstable, which will make the bridge more likely to crack. Moreover, the detachable design cannot compare with the stability of the concrete pouring method, greatly reducing the safety of the bridge. Content of the Utility Model

[0005] In view of the above problems existing in the prior art, the main purpose of the present utility model is to provide a semi-rigid pier-beam connection structure.

[0006] The technical solution of the present utility model is as follows: A semi-rigid pier-beam connection structure includes a beam body. Bridge piers are equidistantly arranged at the bottom of the beam body. Fixed frames are arranged on both sides of each bridge pier. Sliding members are slidably installed inside the fixed frames. Connecting rods are rotatably installed on both sides of each sliding member. Reinforcing support plates are arranged at the top ends of the bridge piers. One ends of the connecting rods far from the sliding members are rotatably connected to the bottoms of the corresponding reinforcing support plates. A bridge damper is fixedly installed between the fixed frame and the sliding member.

[0007] By adopting the above technical solution, when the beam body is in a slightly vibrating state up and down, it will press downward in the direction of the strengthening support plate. In this way, the corresponding sliding member will be pushed by the connecting rod to slide within the fixed frame, and through the action of the bridge damper, the wind load or vibration load borne by the beam body can be effectively decomposed and unloaded, so as to reduce wear and improve the service life of the beam body.

[0008] As a preferred embodiment, a shock absorption mechanism is provided inside the bridge pier. The shock absorption mechanism includes a fixed cavity provided inside the bridge pier. The inside of the fixed cavity is filled with bridge shock absorption glue. A buffer seat is slidably installed inside the fixed cavity, and the top of the buffer seat is fixedly connected to the corresponding strengthening support plate.

[0009] By adopting the above technical solution, when the buffer seat slides within the fixed cavity, it will further squeeze the bridge shock absorption glue, and the bridge shock absorption glue can further play a buffering role.

[0010] As a preferred embodiment, a rigid connection mechanism is provided at the bottom of the beam body. The rigid connection mechanism includes a vertical beam hole provided inside the beam body. A vertical strengthening beam is provided inside the vertical beam hole. The vertical strengthening beam has a loop structure, and a transverse beam hole is provided inside the beam body for cooperating with the vertical beam hole.

[0011] By adopting the above technical solution, through the concrete mortar pouring method, the fixation between the strengthening support plate, the vertical strengthening beam and the beam body can be realized, so as to strengthen the connection strength between the component beam body and the strengthening support plate.

[0012] As a preferred embodiment, a limiting mechanism is provided inside the fixed frame. The limiting mechanism includes limiting grooves opened on both sides of the inner wall of the fixed frame. Limiting members are slidably installed inside the limiting grooves, and the two limiting members are respectively fixedly connected to both sides of the sliding member.

[0013] By adopting the above technical solution, through the cooperation of the limiting member and the limiting groove, an important limiting effect can be achieved on the sliding member.

[0014] As a preferred embodiment, two strengthening ribs are provided between the fixed frame and the bridge pier. Bolts are provided at both ends inside the strengthening ribs, and the fixed frame and the bridge pier are connected by bolts.

[0015] By adopting the above technical solution, through the use of bolts, the installation and disassembly of the strengthening ribs can be facilitated.

[0016] As a preferred embodiment, the two strengthening ribs are respectively provided on both sides of the fixed frame.

[0017] By adopting the above technical solution, the connection strength between the fixed frame and the pier can be strengthened through the arrangement of the reinforcing ribs.

[0018] As a preferred implementation manner, a grouting hole is arranged inside the pier, one end of the grouting hole extends into the interior of the bridge shock-absorbing rubber, and a plug is arranged at the end of the grouting hole far from the bridge shock-absorbing rubber.

[0019] By adopting the above technical solution, through the arrangement of the grouting hole, the staff can use a grouting machine to inject the shock-absorbing rubber into the fixed cavity.

[0020] As a preferred implementation manner, the connecting rod, the reinforcing rib and the sliding member are all steel members, and the vertical reinforcing beams are all arranged on the tops of the corresponding reinforcing support plates.

[0021] By adopting the above technical solution, through the arrangement of the steel members, the connecting rod, the reinforcing rib and the sliding member have high strength.

[0022] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0023] 1. In the present utility model, through the arrangement of the connecting rod, the sliding member, the buffer seat, the bridge shock-absorbing rubber and other components, a stable semi-rigid connection can be formed. And when the beam body is in a state of slight up-and-down vibration, it will press downward in the direction of the reinforcing support plate. In this way, the corresponding sliding member will be pushed by the connecting rod to slide in the fixed frame, and through the action of the bridge damper, the wind load or vibration load borne by the beam body can be effectively decomposed and unloaded, so as to reduce wear and improve the service life of the beam body. Furthermore, the situation that the negative moment area at the top of the pier is prone to cracking can be reduced, the safety of the beam body can be improved. Compared with the traditional spring method, the bridge damper can use the damping characteristic to slow down the vibration, so that the whole beam body has a certain stability.

[0024] 2. In the present utility model, when the reinforcing support plate presses downward, it will push the buffer seat below it to slide in the fixed cavity, and then the bridge shock-absorbing rubber will be squeezed. And the bridge shock-absorbing rubber can further play a buffering role, further improving the stability of the beam body.

[0025] 3. In the present utility model, when it is necessary to install the shock-absorbing mechanism and the components above it, the vertical reinforcing beam above the reinforcing support plate can be clamped into the vertical beam hole. After the clamping is completed, the concrete mortar can be injected into the horizontal beam hole. Immediately, the concrete mortar will soak into the interiors of the vertical beam hole and the horizontal beam hole. After the concrete mortar sets, the fixation between the reinforcing support plate, the vertical reinforcing beam and the beam body can be realized, so as to strengthen the connection strength between the component beam body and the reinforcing support plate and improve the stability of the beam body. Description of the Drawings

[0026] Figure 1 The utility model provides an overall three-dimensional view of a semi-rigid pier-beam connection structure;

[0027] Figure 2 The utility model provides a schematic diagram of the internal structure of a semi-rigid pier-beam connection structure;

[0028] Figure 3 The utility model provides a sectional view of a semi-rigid pier-beam connection structure;

[0029] Figure 4 The utility model provides a Figure 3 magnified view of part A in a semi-rigid pier-beam connection structure.

[0030] Legend: 1. Beam body; 2. Bridge pier; 3. Fixed frame; 4. Connecting rod; 5. Buffer seat; 6. Bridge shock-absorbing rubber; 7. Vertical strengthening beam; 8. Vertical beam hole; 9. Horizontal beam hole; 10. Fixed cavity; 11. Strengthening support plate; 12. Bridge damper; 13. Sliding part; 14. Limit groove; 15. Limiting part; 16. Grouting hole; 17. Reinforcing rib. Specific implementation manners

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] Refer to Figures 1-4, a semi-rigid pier-beam connection structure, including a beam body 1. Piers 2 are equidistantly arranged at the bottom of the beam body 1. Fixed frames 3 are arranged on both sides of the piers 2. Sliding members 13 are slidably installed inside the fixed frames 3. Connecting rods 4 are rotatably installed on both sides of the sliding members 13. Reinforcing support plates 11 are arranged at the tops of the piers 2. One ends of the connecting rods 4 away from the sliding members 13 are rotatably connected to the bottoms of the corresponding reinforcing support plates 11. A bridge damper 12 is fixedly installed between the fixed frames 3 and the sliding members 13. Through the settings of the connecting rods 4, sliding members 13, buffer seats 5, bridge shock-absorbing rubber 6 and other components, a stable semi-rigid connection can be formed. And when the beam body 1 is in a state of slight up-and-down vibration, it will press downward towards the reinforcing support plate 11. Thus, it will push the corresponding sliding member 13 to slide inside the fixed frame 3 by means of the connecting rod 4. And through the action of the bridge damper 12, the wind load or vibration load borne by the beam body 1 can be effectively decomposed and unloaded, so as to reduce wear and improve the service life of the beam body 1. Furthermore, the situation that the negative moment area at the top of the pier 2 is prone to cracking can be reduced, and the safety of the beam body 1 can be improved. Compared with the traditional spring method, the bridge damper 12 can use the damping characteristics to slow down the vibration, making the beam body 1 as a whole have a certain stability.

[0033] Refer to Figure 2 , a shock-absorbing mechanism is arranged inside the pier 2. The shock-absorbing mechanism includes a fixed cavity 10 arranged inside the pier 2. The fixed cavity 10 is filled with bridge shock-absorbing rubber 6. Buffer seats 5 are slidably installed inside the fixed cavity 10. The tops of the buffer seats 5 are fixedly connected to the corresponding reinforcing support plates 11. When the reinforcing support plate 11 presses downward, it will push the buffer seat 5 below it to slide inside the fixed cavity 10, and then the bridge shock-absorbing rubber 6 will be squeezed. And the bridge shock-absorbing rubber 6 can further play a buffering role, further improving the stability of the beam body 1.

[0034] Refer to Figure 2 , a rigid connection mechanism is arranged at the bottom of the beam body 1. The rigid connection mechanism includes a vertical beam hole 8 arranged inside the beam body 1. A vertical reinforcing beam 7 is arranged inside the vertical beam hole 8. The vertical reinforcing beam 7 is in a loop structure. A transverse beam hole 9 is arranged inside the beam body 1 and is used in cooperation with the vertical beam hole 8 when the shock-absorbing mechanism and the components above it need to be installed. The vertical reinforcing beam 7 above the reinforcing support plate 11 can be snapped into the vertical beam hole 8. After the snapping is completed, concrete mortar can be injected into the transverse beam hole 9. Immediately, the concrete mortar will spread into the interiors of the vertical beam hole 8 and the transverse beam hole 9. And after the concrete mortar sets, the fixation between the reinforcing support plate 11, the vertical reinforcing beam 7 and the beam body 1 can be realized, thereby strengthening the connection strength between the component beam body 1 and the reinforcing support plate 11 and improving the stability of the beam body 1.

[0035] Refer to Figure 4, a limiting mechanism is arranged inside the fixed frame 3. The limiting mechanism includes limiting grooves 14 opened on both sides of the inner wall of the fixed frame 3. Limiting members 15 are slidably installed inside the limiting grooves 14. The two limiting members 15 are respectively fixedly connected to both sides of the sliding member 13. By the cooperative use of the limiting members 15 and the limiting grooves 14, an important limiting effect can be exerted on the sliding member 13 to ensure the stable operation of the buffer and shock absorption structure.

[0036] Refer to Figure 1 , two reinforcing ribs 17 are arranged between the fixed frame 3 and the bridge pier 2. Bolts are arranged at both ends inside the reinforcing ribs 17. The fixed frame 3 and the bridge pier 2 are connected by bolts. The two reinforcing ribs 17 are respectively arranged on both sides of the fixed frame 3. By the arrangement of the reinforcing ribs 17, the connection strength between the fixed frame 3 and the bridge pier 2 can be enhanced, and the phenomenon that the fixed frame 3 breaks during long-term bearing capacity can be avoided.

[0037] Refer to Figure 4 , a grouting hole 16 is arranged inside the bridge pier 2. One end of the grouting hole 16 extends into the interior of the bridge shock-absorbing rubber 6. A plug is arranged at the end of the grouting hole 16 far away from the bridge shock-absorbing rubber 6. By the arrangement of the grouting hole 16, the staff can use a grouting machine to inject the shock-absorbing rubber into the fixed cavity 10 and use the plug to block the opening of the grouting hole 16.

[0038] Refer to Figure 2 , the connecting rod 4, the reinforcing rib 17 and the sliding member 13 are all steel components. The vertical reinforcing beams 7 are all arranged on the tops of the corresponding reinforcing support plates 11. By the arrangement of the steel components, the connecting rod 4, the reinforcing rib 17 and the sliding member 13 have relatively high strength.

[0039] Working principle: First, when it is necessary to install the shock-absorbing mechanism and the components above it, the vertical reinforcing beam 7 above the reinforcing support plate 11 can be clamped into the vertical beam hole 8. After the clamping is completed, the concrete mortar can be injected into the horizontal beam hole 9. Immediately afterwards, the concrete mortar will spread into the interiors of the vertical beam hole 8 and the horizontal beam hole 9. After the concrete mortar solidifies, the fixation between the reinforcing support plate 11, the vertical reinforcing beam 7 and the beam body 1 can be realized, thereby enhancing the connection strength between the component beam body 1 and the reinforcing support plate 11 and improving the stability of the beam body 1. Subsequently, by the arrangement of the grouting hole 16, the staff can use a grouting machine to inject the shock-absorbing rubber into the fixed cavity 10 and use the plug to block the opening of the grouting hole 16;

[0040] Through the settings of the connecting rod 4, the sliding member 13, the buffer seat 5, the bridge shock-absorbing rubber 6 and other components, a stable semi-rigid connection can be formed. When the beam body 1 is in a state of slight up-and-down vibration, it will press downward in the direction of the reinforcing support plate 11. In this way, the corresponding sliding member 13 will be pushed by the connecting rod 4 to slide within the fixed frame 3. Through the action of the bridge damper 12, the wind load or vibration load borne by the beam body 1 can be effectively decomposed and unloaded, so as to reduce wear and improve the service life of the beam body 1. Furthermore, the situation that the negative moment area at the top of the pier 2 is prone to cracking can be reduced, and the safety of the beam body 1 can be improved;

[0041] When the reinforcing support plate 11 presses downward, it will push the buffer seat 5 below it to slide within the fixed cavity 10, and then the bridge shock-absorbing rubber 6 will be squeezed. The bridge shock-absorbing rubber 6 can further play a buffering role and further improve the stability of the beam body 1.

[0042] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] The above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A semi-rigid pier-beam connection structure, comprising a beam body (1), characterized in that: The bottom of the beam body (1) is equidistantly provided with bridge piers (2). Both sides of the bridge piers (2) are provided with fixed frames (3). Sliding members (13) are slidably installed inside the fixed frames (3). Connecting rods (4) are rotatably installed on both sides of the sliding members (13). Reinforcing support plates (11) are provided at the tops of the bridge piers (2). One end of each connecting rod (4) away from the sliding member (13) is rotatably connected to the bottom of the corresponding reinforcing support plate (11). A bridge damper (12) is fixedly installed between the fixed frame (3) and the sliding member (13).

2. The semi-rigid pier-beam connection structure according to claim 1, characterized in that: A shock absorption mechanism is arranged inside the bridge pier (2). The shock absorption mechanism includes a fixed cavity (10) arranged inside the bridge pier (2). The fixed cavity (10) is filled with bridge shock absorption glue (6). Buffer seats (5) are slidably installed inside the fixed cavity (10). The top of the buffer seat (5) is fixedly connected to the corresponding reinforcing support plate (11).

3. The semi-rigid pier-beam connection structure according to claim 1, characterized in that: A rigid connection mechanism is arranged at the bottom of the beam body (1). The rigid connection mechanism includes a vertical beam hole (8) arranged inside the beam body (1). A vertical reinforcing beam (7) is arranged inside the vertical beam hole (8). The vertical reinforcing beam (7) is in a loop structure. A transverse beam hole (9) that cooperates with the vertical beam hole (8) is arranged inside the beam body (1).

4. A semi-rigid pier-girder connection structure according to claim 1, characterized in that: A limiting mechanism is arranged inside the fixed frame (3). The limiting mechanism includes limiting grooves (14) opened on both sides of the inner wall of the fixed frame (3). Limiting members (15) are slidably installed inside the limiting grooves (14). The two limiting members (15) are respectively fixedly connected to both sides of the sliding member (13).

5. The semi-rigid pier-girder connection structure according to claim 3, characterized in that: Two reinforcing ribs (17) are arranged between the fixed frame (3) and the bridge pier (2). Bolts are arranged at both ends inside the reinforcing ribs (17). The fixed frame (3) and the bridge pier (2) are connected by bolts.

6. The semi-rigid pier-beam connection structure according to claim 5, wherein: The two reinforcing ribs (17) are respectively arranged on both sides of the fixed frame (3).

7. A semi-rigid pier-girder connection structure according to claim 1, characterized in that: A grouting hole (16) is arranged inside the bridge pier (2). One end of the grouting hole (16) extends into the bridge shock absorption glue (6). A plug is arranged at the end of the grouting hole (16) away from the bridge shock absorption glue (6).

8. A semi-rigid pier-girder connection structure according to claim 5, characterized in that: The connecting rods (4), the reinforcing ribs (17) and the sliding members (13) are all steel components. The vertical reinforcing beams (7) are all arranged on the tops of the corresponding reinforcing support plates (11).

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