Modular curved ramp bridge box girder elastic connecting device

Abstract

The utility model discloses a kind of modularization curved ramp bridge box girder elastic connecting device, including left, right connecting assembly and elastic buffer component, connect two side box girders respectively, left connecting plate groove and right connecting plate boss inlay, built-in spring group absorbs longitudinal vibration displacement;Up and down elastic buffer piece buffer horizontal and vertical impact force, multiple elastic structure cooperates and weakens vibration stress caused by vehicle driving, temperature change, settlement etc., reduce fatigue damage, prolong bridge life, device uses modularization design, component is quickly assembled by bolt, T type block slot, easily damaged part can be individually replaced, reduce construction and maintenance cost, adapt to the curved ramp bridge of limited adaptation space, rubber elastomer weather resistance is strong, can adapt to non-uniform stress and telescopic deformation caused by curvature, T type structure makes elastomer stress uniform, improve carrying capacity.

Description

Technical Field

[0001] This utility model specifically relates to a modular flexible connection device for box girders of curved ramp bridges. Background Technology

[0002] In the field of bridge engineering, especially for the construction of curved ramp bridges, box girder connection technology is crucial. With the acceleration of urbanization and the continuous advancement of transportation infrastructure construction, curved ramp bridges, as a key component of complex transportation hubs, are becoming increasingly numerous.

[0003] Traditional box girder connection structures for curved ramp bridges employ rigid or simple elastic connections. These connection methods exhibit poor adaptability when faced with complex stress conditions. Rigid connections cannot effectively buffer and coordinate the deformation caused by these complex external forces, easily leading to stress concentration at the connection points, which in turn causes structural damage and seriously affects the service life and safety of the bridge. Simple elastic connections often have deficiencies in terms of load-bearing capacity, deformation adaptability, and durability, making it difficult to meet the usage requirements of modular curved ramp bridges.

[0004] Therefore, it is necessary to invent a modular elastic connection device for curved ramp bridge box girders to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a modular elastic connection device for box girders of curved ramp bridges.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a modular curved ramp bridge box girder elastic connection device, comprising a left connection component, a right connection component, and an elastic buffer component, wherein the left connection component and the right connection component are fixedly connected to the left box girder and the right box girder, respectively. The elastic buffer component is disposed between the left connecting component and the right connecting component; The left connecting assembly includes a left connecting plate and a left anchor. A groove is provided on the upper right side of the left connecting plate, and multiple springs are provided in the groove. The right connecting assembly includes a right connecting plate and a right anchor. The left side of the right connecting plate is provided with a protrusion that matches the groove. The protrusion is provided with a spring seat that matches the spring. The protrusion is inserted into the groove, and one end of the spring is connected to the bottom of the groove, and the other end is connected to the spring seat. The elastic buffer assembly includes an upper elastic buffer and a lower elastic buffer, which are respectively disposed between the top and bottom of the left connecting plate and the right connecting plate.

[0007] Preferably, the upper elastic buffer includes an upper left connecting block, an upper right connecting block, and an upper elastic body. The upper left connecting block is fixedly connected to the top of the left connecting plate, and the upper right connecting block is fixedly connected to the top of the right connecting plate. The upper elastic body is disposed between the upper left connecting block and the upper right connecting block, and multiple upper T-shaped fixing blocks are provided on both sides of the upper elastic body. The upper left connecting block and the upper right connecting block are respectively provided with upper T-shaped fixing grooves.

[0008] Preferably, the lower elastic buffer includes a lower left connecting block, a lower right connecting block, and a lower elastic body. The lower left connecting block is fixedly connected to the bottom of the left connecting plate, the lower right connecting block is fixedly connected to the bottom of the right connecting plate, the lower elastic body is disposed between the lower left connecting block and the lower right connecting block, and multiple lower T-shaped fixing blocks are provided on both sides of the lower elastic body. The lower left connecting block and the lower right connecting block are respectively provided with lower T-shaped fixing grooves.

[0009] Preferably, a guide assembly is further provided between the left connecting plate and the right connecting plate. The guide assembly includes a guide rod and a guide sleeve. One end of the guide rod is fixedly connected to the left connecting plate, the guide sleeve is disposed inside the right connecting plate, the guide rod is inserted into the guide sleeve, and the guide rod and the guide sleeve are slidably engaged.

[0010] Preferably, both the left and right anchors include multiple anchor bolts and anchor nuts. The anchor bolts pass through the left or right connecting plate and connect to the box girder. The anchor nuts cooperate with the anchor bolts to fix the left or right connecting plate to the box girder.

[0011] Preferably, both the upper and lower elastomers are made of rubber material.

[0012] Preferably, both the left box girder and the right box girder are provided with mounting grooves for installing the left connecting component and the right connecting component.

[0013] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. This utility model achieves buffering of relative displacement between box girders through multiple elastic structures: the spring assembly that cooperates with the groove of the left connecting plate and the protrusion of the right connecting plate can absorb longitudinal vibration and displacement; the upper and lower elastic buffers can buffer lateral and vertical impact forces; the synergistic effect of multiple elastic components effectively weakens the vibration and stress caused by factors such as vehicle driving, temperature changes, and foundation settlement, reduces fatigue damage at the box girder connection, and extends the service life of the bridge; 2. The left connecting component, right connecting component, and elastic buffer component of this utility model are all independent modules. Each component can be quickly assembled by means of bolts, T-shaped fixing blocks and grooves, which reduces the difficulty of on-site construction and improves installation efficiency. The elastic body, spring and other vulnerable parts can be disassembled and replaced separately without the need to dismantle the connecting device as a whole, which greatly reduces maintenance costs and cycle, and is especially suitable for scenarios with limited construction space such as curved ramp bridges. 3. The upper and lower elastomers made of rubber in this utility model have good elastic deformation ability and weather resistance, and can adapt to the non-uniform stress caused by curvature and the expansion and contraction deformation caused by temperature changes in curved ramp bridges; the combination design of spring assembly and elastomer can flexibly cope with displacement requirements in different directions and amplitudes, and is suitable for special structures such as ramp bridges with complex stress states. 4. The upper and lower elastic buffer components of this utility model, through the cooperation of T-shaped fixing blocks and grooves, make the elastic body uniformly stressed, reduce local stress concentration, and improve the overall load-bearing capacity. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall installation and connection structure of this utility model; Figure 2 This is a schematic diagram of the split installation structure of the left and right connecting components of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the left and right connecting components of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the disassembled structure of the left and right connecting components of this utility model. Figure 2 .

[0016] Explanation of reference numerals in the attached figures: 1. Left connecting assembly; 11. Left connecting plate; 12. Left anchor; 13. Groove; 14. Spring; 2. Right connecting assembly; 21. Right connecting plate; 22. Right anchor; 23. Protrusion; 24. Spring seat; 3. Elastic buffer assembly; 31. Upper elastic buffer; 311. Upper left connecting block; 312. Upper right connecting block; 313. Upper elastic body; 314. Upper T-shaped fixing block; 315. Upper T-shaped fixing groove; 32. Lower elastic buffer; 321. Lower left connecting block; 322. Lower right connecting block; 323. Lower elastic body; 324. Lower T-shaped fixing block; 325. Lower T-shaped fixing groove; 4. Guide assembly; 41. Guide rod; 42. Guide sleeve. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figure 1-4 The modular curved ramp bridge box girder elastic connection device shown includes a left connection component 1, a right connection component 2 and an elastic buffer component 3. The left connection component 1 and the right connection component 2 are fixedly connected to the left box girder and the right box girder, respectively. Specifically, the elastic buffer component 3 is disposed between the left connecting component 1 and the right connecting component 2; Specifically, the left connecting assembly 1 includes a left connecting plate 11 and a left anchor 12. A groove 13 is provided on the upper right side of the left connecting plate 11, and a plurality of springs 14 are provided in the groove 13. Specifically, the right connecting component 2 includes a right connecting plate 21 and a right anchor 22. The left side of the right connecting plate 21 is provided with a protrusion 23 that matches the groove 13. The protrusion 23 is provided with a spring seat 24 that matches the spring 14. The protrusion 23 is inserted into the groove 13, and one end of the spring 14 is connected to the bottom of the groove 13, and the other end is connected to the spring seat 24. Specifically, the elastic buffer assembly 3 includes an upper elastic buffer 31 and a lower elastic buffer 32, which are respectively disposed between the top and bottom of the left connecting plate 11 and the right connecting plate 21.

[0019] In this embodiment, the mounting slot of the left box girder is first processed by cleaning debris and dust from the slot to ensure a flat mounting surface. The left connecting plate 11 is then placed into the mounting slot of the left box girder and its position is adjusted to ensure a tight fit between the left connecting plate 11 and the box girder. Next, the left anchor 12 is used for fixation. Multiple anchor bolts of the left anchor 12 pass through pre-drilled holes on the left connecting plate 11 and extend into the box girder. The anchor nuts are then tightened in conjunction with the anchor bolts to ensure the left connecting plate 11 is securely fixed to the left box girder. During installation, care must be taken to ensure that the multiple anchor bolts are evenly stressed to prevent the left connecting plate 11 from tilting.

[0020] Specifically, similar to the installation of the left connecting component, after cleaning the mounting slot of the right box girder, the right connecting plate 21 is placed into the mounting slot. The anchor bolts of the right anchor 22 pass through the right connecting plate 21 and connect it to the right box girder, and then the anchor nuts are tightened to fix it, so that the right connecting plate 21 is firmly installed on the right box girder. Similarly, it is necessary to ensure that the multiple anchor bolts are evenly stressed.

[0021] Reference Figure 3-4The upper elastic buffer 31 includes an upper left connecting block 311, an upper right connecting block 312, and an upper elastic body 313. The upper left connecting block 311 is fixedly connected to the top of the left connecting plate 11, and the upper right connecting block 312 is fixedly connected to the top of the right connecting plate 21. The upper elastic body 313 is disposed between the upper left connecting block 311 and the upper right connecting block 312, and multiple upper T-shaped fixing blocks 314 are provided on both sides of the upper elastic body 313. The upper left connecting block 311 and the upper right connecting block 312 are respectively provided with upper T-shaped fixing grooves 315.

[0022] Specifically, the lower elastic buffer 32 includes a lower left connecting block 321, a lower right connecting block 322, and a lower elastic body 323. The lower left connecting block 321 is fixedly connected to the bottom of the left connecting plate 11, and the lower right connecting block 322 is fixedly connected to the bottom of the right connecting plate 21. The lower elastic body 323 is disposed between the lower left connecting block 321 and the lower right connecting block 322, and multiple lower T-shaped fixing blocks 324 are provided on both sides of the lower elastic body 323. The lower left connecting block 321 and the lower right connecting block 322 are respectively provided with lower T-shaped fixing grooves 325.

[0023] In this embodiment, the upper left connecting block 311 is fixed to the top of the left connecting plate 11 by welding or bolting to ensure a firm connection. The upper right connecting block 312 is fixed to the top of the right connecting plate 21 in the same way as the upper left connecting block 311. Then, the upper T-shaped fixing blocks 314 on both sides of the upper elastic body 313 are inserted into the upper T-shaped fixing grooves 315 on the upper left connecting block 311 and the upper right connecting block 321 respectively, so that the upper elastic body 313 is stably set between the upper left connecting block 311 and the upper right connecting block 312.

[0024] Specifically, following a similar installation method to the upper elastic buffer, the lower left connecting block 321 is fixed to the bottom of the left connecting plate 11, the lower right connecting block 322 is fixed to the bottom of the right connecting plate 21, and then the lower T-shaped fixing blocks 324 on both sides of the lower elastic body 323 are inserted into the corresponding lower T-shaped fixing grooves 325 to complete the installation of the lower elastic buffer 32.

[0025] Specifically, a guide assembly 4 is provided between the left connecting plate 11 and the right connecting plate 21. The guide assembly 4 includes a guide rod 41 and a guide sleeve 42. One end of the guide rod 41 is fixedly connected to the left connecting plate 11, and the guide sleeve 42 is disposed inside the right connecting plate 21. The guide rod 41 is inserted into the guide sleeve 42, and the guide rod 41 and the guide sleeve 42 are slidably engaged.

[0026] In this embodiment, one end of the guide rod 41 is fixedly connected to the left connecting plate 11 by welding or bolting, ensuring that the guide rod 41 is firmly installed and perpendicular to the surface of the left connecting plate 11. Then, the guide sleeve 42 is installed in the preset mounting hole in the right connecting plate 21, ensuring that the axis of the guide sleeve 42 is on the same straight line as the axis of the guide rod 41.

[0027] Specifically, both the left anchor 12 and the right anchor 22 include multiple anchor bolts and anchor nuts. The anchor bolts pass through the left connecting plate 11 or the right connecting plate 21 and are connected to the box girder. The anchor nuts cooperate with the anchor bolts to fix the left connecting plate 11 or the right connecting plate 21 to the box girder.

[0028] Specifically, both the upper elastomer 313 and the lower elastomer 323 are made of rubber material.

[0029] Specifically, both the left and right box girders are provided with mounting slots for installing the left connecting component 1 and the right connecting component 2.

[0030] In this embodiment, the left connecting assembly 1 and the right connecting assembly 2 are aligned so that the protrusion 23 on the left side of the right connecting plate 21 is accurately inserted into the groove 13 on the upper right side of the left connecting plate 11. At this time, one end of the spring 14 contacts the bottom of the groove 13, and the other end contacts the spring seat 24 on the protrusion 23. Simultaneously, the guide rod 41 is inserted into the guide sleeve 42, ensuring that the guide rod 41 and the guide sleeve 42 can slide smoothly together. Check whether the connections of each component are in place; if any are loose, adjust and reinforce them in time.

[0031] In this embodiment, the upper elastic body 313 and the lower elastic body 323 in the elastic buffer assembly 3 are made of rubber material, which has good elasticity and toughness. When the bridge expands or vibrates under the influence of factors such as vehicle traffic and temperature changes, the upper elastic body 313 and the lower elastic body 323 will deform, absorbing and buffering most of the impact force, reducing mutual collision and wear between box girders. At the same time, the spring 14 between the groove 13 and the protrusion 23 can also play an auxiliary buffering role, further enhancing the buffering performance of the device, effectively protecting the box girder structure, and improving the service life of the bridge.

[0032] In this embodiment, the guide rod 41 and guide sleeve 42 in the guide assembly 4 are slidably engaged, which can play a precise guiding role when the box girder undergoes relative displacement, ensuring that the displacement direction of the box girder meets the design requirements and avoiding deviation or misalignment. This helps maintain the overall structural stability of the bridge and ensures the safety and comfort of vehicle travel.

[0033] In this embodiment, the left connecting component 1 and the right connecting component 2 are fixedly connected to the left and right box girders respectively via the left anchor 12 and the right anchor 22. The use of multiple anchor bolts and anchor nuts makes the connection more robust and reliable, capable of withstanding larger loads. At the same time, the cooperation between the protrusion 23 and the groove 13, as well as the connection of the elastic buffer component, further enhances the overall connection strength of the device, ensuring that the box girders will not separate under various working conditions.

[0034] In this embodiment, the device adopts a modular design, with simple and reliable connections between components, facilitating installation, disassembly, and maintenance. When a component is damaged, it can be replaced individually without replacing the entire device, reducing maintenance costs and complexity. Furthermore, the device can adapt to varying degrees of displacement and vibration, making it suitable for box girder connection scenarios in various curved ramp bridges, and has broad application prospects.

[0035] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A modular elastic connection device for box girder of a curved ramp bridge, characterized in that: It includes a left connecting component (1), a right connecting component (2) and an elastic buffer component (3), wherein the left connecting component (1) and the right connecting component (2) are fixedly connected to the left box girder and the right box girder respectively; The elastic buffer component (3) is disposed between the left connecting component (1) and the right connecting component (2); The left connecting assembly (1) includes a left connecting plate (11) and a left anchor (12). A groove (13) is provided on the upper right side of the left connecting plate (11), and a plurality of springs (14) are provided in the groove (13). The right connecting assembly (2) includes a right connecting plate (21) and a right anchor (22). A protrusion (23) matching the groove (13) is provided on the left side of the right connecting plate (21). A spring seat (24) matching the spring (14) is provided on the protrusion (23). The protrusion (23) is inserted into the groove (13). One end of the spring (14) is connected to the bottom of the groove (13), and the other end is connected to the spring seat (24). The elastic buffer assembly (3) includes an upper elastic buffer (31) and a lower elastic buffer (32), which are respectively disposed between the top and bottom of the left connecting plate (11) and the right connecting plate (21).

2. The modular curved ramp bridge box girder elastic connection device according to claim 1, characterized in that: The upper elastic buffer (31) includes an upper left connecting block (311), an upper right connecting block (312), and an upper elastic body (313). The upper left connecting block (311) is fixedly connected to the top of the left connecting plate (11), and the upper right connecting block (312) is fixedly connected to the top of the right connecting plate (21). The upper elastic body (313) is disposed between the upper left connecting block (311) and the upper right connecting block (312), and multiple upper T-shaped fixing blocks (314) are provided on both sides of the upper elastic body (313). The upper left connecting block (311) and the upper right connecting block (312) are respectively provided with upper T-shaped fixing grooves (315).

3. The modular curved ramp bridge box girder elastic connection device according to claim 2, characterized in that: The lower elastic buffer (32) includes a lower left connecting block (321), a lower right connecting block (322), and a lower elastic body (323). The lower left connecting block (321) is fixedly connected to the bottom of the left connecting plate (11), and the lower right connecting block (322) is fixedly connected to the bottom of the right connecting plate (21). The lower elastic body (323) is disposed between the lower left connecting block (321) and the lower right connecting block (322), and multiple lower T-shaped fixing blocks (324) are provided on both sides of the lower elastic body (323). The lower left connecting block (321) and the lower right connecting block (322) are respectively provided with lower T-shaped fixing grooves (325).

4. The modular curved ramp bridge box girder elastic connection device according to claim 1, characterized in that: A guide assembly (4) is also provided between the left connecting plate (11) and the right connecting plate (21). The guide assembly (4) includes a guide rod (41) and a guide sleeve (42). One end of the guide rod (41) is fixedly connected to the left connecting plate (11). The guide sleeve (42) is disposed inside the right connecting plate (21). The guide rod (41) is inserted into the guide sleeve (42), and the guide rod (41) and the guide sleeve (42) are slidably engaged.

5. The modular curved ramp bridge box girder elastic connection device according to claim 2, characterized in that: The left anchor (12) and the right anchor (22) each include multiple anchor bolts and anchor nuts. The anchor bolts pass through the left connecting plate (11) or the right connecting plate (21) and are connected to the box girder. The anchor nuts cooperate with the anchor bolts to fix the left connecting plate (11) or the right connecting plate (21) on the box girder.

6. The modular curved ramp bridge box girder elastic connection device according to claim 1, characterized in that: Both the upper elastomer (313) and the lower elastomer (323) are made of rubber material.

7. The modular curved ramp bridge box girder elastic connection device according to claim 1, characterized in that: Both the left and right box girders are provided with mounting slots for installing the left connecting component (1) and the right connecting component (2).

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