A bridge structure connecting assembly
The bridge structure connection components using support platforms and elastic supports solve the problems of stress concentration and uneven settlement at bridge connections, achieving flexible connection and stability of the bridge and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO PLANNING ENG DESIGN RES INST CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-24
AI Technical Summary
The rigid connection method at the existing bridge joints leads to stress concentration and uneven settlement, resulting in tilting or breakage. In addition, the maintenance cost is high and it is difficult to adapt to the relative displacement and deformation of the bridge body.
The bridge structure connection components include support platforms and elastic support members. The bridge body is flexibly connected by elastic plates and curved load-bearing parts. The load impact is buffered by buffer members and buffer rods, and stable support is provided by metal frame and concrete structure layer.
This achieves flexible connection of the bridge structure, adapts to relative displacement and deformation, reduces stress concentration, improves the stability and safety of the bridge connection, and reduces maintenance costs.
Smart Images
Figure CN224548939U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge engineering technology, specifically a component for connecting bridge structures. Background Technology
[0002] Bridge structures are common in road construction, primarily used for vehicle and pedestrian traffic. In bridge engineering, bridge structures are often modular, meaning multiple bridge sections are sequentially joined to form the main structure. During assembly, considerations such as the continuity between the bridge section and the road, the physical characteristics of the bridge structure (e.g., thermal expansion and contraction), usage issues (e.g., settlement), load-bearing capacity, and intended use all necessitate the installation of gaps of varying widths at the joints to accommodate different applications.
[0003] In application, bridge joints often require connecting support structures, such as filling with elastic materials or installing connecting support components (steel-supported expansion joints, modular-supported expansion joints), etc. In existing technologies, the width of the gaps between bridge sections can vary (from 20mm to 2000mm). When installing corresponding connectors, rigid structural components are often used to rigidly connect the bridge sections. However, this type of connection presents the following problems: 1. The rigid structure at the bridge connection point causes stress concentration at the connection point when the two bridge sections are subjected to unequal forces, making the bridge sections and connectors highly susceptible to damage and breakage, leading to connection failure. 2. When uneven settlement occurs on both sides of the bridge, the settlement problem can cause the two bridge sections to tilt, bend, or even break relative to each other. 3. When the two bridge sections are relatively displaced or experience internal stress due to physical properties or geographical factors, they will squeeze or pull on the connectors. Over time, the bridge section connection or connectors are prone to damage, leading to safety hazards. 4. When connectors need to be replaced after damage, the rigid connection makes subsequent maintenance complicated and costly.
[0004] Therefore, in order to improve the connection quality of bridge joints and ensure the long-term safe use of bridges and bridge connectors, this utility model is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a component for connecting bridge structures, which can stably support the bridge splice and flexibly adapt to the relative displacement of the two sides of the bridge body, balance and buffer the load and impact on both sides of the bridge body, and has good load-bearing capacity, elastic adaptability and deformation resistance.
[0006] One of the objectives of this utility model is achieved primarily through the following technical solution: a bridge structure connection component, comprising a support platform and an elastic support member supported on the support platform; wherein, the elastic support member comprises an elastic plate, the middle of which is recessed to form a concave receiving cavity, the two sides of which are bent to form arc-shaped bearing portions, the ends of the arc-shaped bearing portions on both sides are bent to form horizontal connecting portions, and a plurality of connecting through holes are provided at intervals along the length direction of the horizontal connecting portions; two positioning bearing grooves are symmetrically arranged on the support platform, the arc-shaped bearing portions on both sides are respectively installed in the two positioning bearing grooves, and the horizontal connecting portions extend to the outside of the positioning bearing grooves.
[0007] Based on the above technical solution, a buffer component is also provided below the receiving cavity; the buffer component includes a buffer cylinder and a buffer rod respectively provided between the arc-shaped bearing parts on both sides, the buffer cylinder and the buffer rod are horizontally opposite to each other, and the buffer rod extends into the buffer cylinder; the buffer cylinder is filled with shock-absorbing sponge.
[0008] Based on the above technical solution, a sliding plug is provided at the end of the buffer rod that extends into the buffer cylinder; the shock-absorbing sponge is disposed in the cavity between the sliding plug and the buffer cylinder.
[0009] Based on the above technical solution, a limiting rod is also provided at the bottom of the cavity of the buffer cylinder, and the limiting rod is coaxially spaced from the buffer rod.
[0010] Based on the above technical solution, the bottom of the receiving cavity forms an arc-shaped cavity structure.
[0011] Based on the above technical solution, the support platform is constructed by casting an internal metal frame and an external concrete structural layer.
[0012] Based on the above technical solution, the metal skeleton extends horizontally to the concrete structure layer on both sides to form a limiting part; the limiting parts on both sides are respectively located between the arc-shaped bearing parts on both sides and below the receiving cavity.
[0013] Based on the above technical solution, the metal frame and elastic support are both made of Q500qE steel.
[0014] Compared with existing technologies, the beneficial effects of this utility model's alpine meadow turf stripping and storage system and method are as follows: This utility model utilizes a support platform to stably support elastic support components, providing excellent load-bearing capacity. The elastic support components are supported on the support platform via arc-shaped load-bearing parts on both sides, and their ends can be connected to the two bridge bodies via horizontal connecting parts. Thus, the two sides of the bridge body are flexibly connected based on the elastic support components. Based on its elasticity, it can flexibly adapt to the relative displacement of the two bridge bodies and undergo a certain degree of deformation, providing elastic recovery force for displacement and maintaining the phase position and balance of the two bridge bodies as much as possible. At the same time, based on its elasticity, when the two bridge bodies experience unequal settlement or inconsistent loads, deformations, and displacements, it can also buffer the corresponding load impact based on its deformation and balance the displacement or settlement deformation of the two bridge bodies. It has excellent load-bearing capacity, elastic adaptability, and deformation resistance, which not only protects the structure of the two bridge bodies very well, but is also not easily damaged, has strong adaptability, and is conducive to the stability and safety of the bridge body connection. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of the bridge structure connection components in the embodiment;
[0017] Figure 2 This is a side view of the elastic support member in the embodiment;
[0018] Figure 3 This is a top view of the elastic support member in the embodiment;
[0019] Figure 4 This is a top view of the support platform in the embodiment;
[0020] Figure 5 This is a side view of the support platform in the embodiment;
[0021] Figure 6 This is a schematic diagram illustrating the usage status of the bridge structure connection components in the embodiment;
[0022] The labels in the diagram represent:
[0023] 1. Support platform; 2. Elastic support component; 3. Elastic plate; 4. Receiving cavity; 5. Arc-shaped bearing part; 6. Horizontal connection part; 7. Connecting through hole; 8. Positioning bearing groove; 9. Buffer cylinder; 10. Buffer rod; 11. Shock-absorbing sponge; 12. Sliding plug; 13. Limiting rod; 14. Metal frame; 15. Concrete structural layer; 16. Limiting part. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0025] like Figures 1-6 As shown, this embodiment mainly describes a bridge structure connection component, including a support platform 1 and an elastic support member 2 supported on the support platform 1. The elastic support member 2 includes an elastic plate 3, with the middle of the elastic plate 3 recessed to form a concave receiving cavity 4. The two sides of the elastic plate 3 are bent to form arc-shaped bearing portions 5, and the ends of the arc-shaped bearing portions 5 on both sides are bent to form horizontal connecting portions 6. Several connecting through holes 7 are provided at intervals along the length direction of the horizontal connecting portions 6. Two positioning bearing grooves 8 are symmetrically arranged on the support platform 1, and the arc-shaped bearing portions 5 on both sides are respectively installed in the two positioning bearing grooves 8, with the horizontal connecting portions 6 extending to the outside of the positioning bearing grooves 8.
[0026] In application, the bridge structure connection component is set between the two bridge bodies a that are connected to the bridge. It can be supported on the bridge piers and can be anchored to the bridge pier b by attaching corresponding anchors to the support platform 1. When the whole is set up, the part of the elastic plate 3 with the receiving cavity 4 in the middle is located in the gap between the two bridge bodies a. The arc-shaped bearing part 5 is set at intervals below the two bridge bodies a. The horizontal connecting parts 6 on both sides can be fixed to the inner side of the lower part of the two bridge bodies a by anchors such as anchor bolts through the connecting through holes 7. After completion, the entire support platform 1 is placed or fixed to the bridge pier b by anchors. After completion, the receiving cavity 4 is filled with elastic material (such as TST bridge expansion joint material, elastomeric sealant, elastic concrete, etc.) until the elastic material is higher than the two bridge bodies by a certain height, and the installation is completed.
[0027] Based on this, this embodiment uses an elastic plate 3 as a flexible connector, and connects the two bridge bodies a through a horizontal connecting part 6, thereby stably connecting the two bridge bodies a and ensuring the stability of the connection between the bridge bodies. At the same time, based on the elastic bearing function of the arc-shaped bearing part 5, when the two bridge bodies a experience unequal bearing, load, or deformation, the arc-shaped bearing part 5 can adapt by deforming, buffering the impact of the corresponding load and balancing the displacement or settlement deformation of the two bridge bodies, thus achieving a good protection and shock absorption effect. After the bearing, load, or deformation is eliminated, it can elastically return to its original position, maintaining the bridge connection state, and also reducing stress concentration between bridge bodies and connecting parts, thus providing excellent protection for the bridge structure and connecting parts. In terms of component integrity, during use, most of the elastic material is supported by the receiving cavity 4, ensuring its long-term filling volume and preventing loss. Simultaneously, the receiving cavity 4 provides support, guaranteeing the load-bearing capacity of the gaps between the bridge bodies a. When the two bridge bodies undergo relative movement or slight changes in shape, the elastic plate 3 deforms, causing a slight change in the volume of the receiving cavity 4. The elastic material within it can adaptively adjust to meet the required gap width. Finally, the elastic support 2 is entirely supported and positioned within the positioning bearing groove 8, and is supported by the support platform 1. Therefore, the entire connection structure not only has excellent load-bearing capacity, elastic adaptability, and deformation resistance, but also provides excellent protection for the bridge body structures on both sides. Furthermore, it is not easily damaged and is suitable for long-term use.
[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the above-mentioned bridge structure connection component also includes a buffer component disposed below the receiving cavity 4; the buffer component includes a buffer cylinder 9 and a buffer rod 10 respectively disposed between the two sides of the arc-shaped bearing parts 5, the buffer cylinder 9 and the buffer rod 10 are horizontally opposite each other, and the buffer rod 10 extends into the buffer cylinder 9; the buffer cylinder 9 is filled with shock-absorbing sponge 11.
[0029] During implementation, in order to ensure that the deformation of the elastic plate 3 is not too large and to reduce the repeated impact loads and deformation effects on the bridge body a and the connecting components, when the arc-shaped bearing parts 5 on both sides are vibrated or deformed, the part of the buffer rod 10 extending into the buffer cylinder 9 changes its extension length, thereby squeezing the shock-absorbing sponge 11. The shock-absorbing sponge 11 provides a certain shock absorption effect. Based on the guiding effect of the buffer cylinder 9 and the buffer rod 10, the deformation direction of the arc-shaped bearing parts 5 on both sides is ensured, and the relative deformation of the two parts is ensured without deviation. This further ensures the connection state of the bridge bodies a on both sides. At the same time, when there is a moving load (such as a moving vehicle), the buffer cylinder 9 and the buffer rod 10 can also quickly respond to the changes in the state of the bridge bodies a on both sides, ensuring that the vertical floating amount at the connection of the bridge bodies a is within a reasonable range, and quickly damping and silencing the generated vibrations and abnormal noises.
[0030] In a specific embodiment, a sliding plug 12 is provided at the end of the buffer rod 10 that extends into the buffer cylinder 9; the shock-absorbing sponge 11 is disposed in the cavity between the sliding plug 12 and the buffer cylinder 9. In application, the sliding plug 12 can provide a certain degree of sealing for the shock-absorbing sponge 11, ensuring the amount of shock-absorbing sponge 11 remaining in the buffer cylinder 9. Simultaneously, as the length of the buffer rod 10 extends, the contact area between the sliding plug 12 and the shock-absorbing sponge 11 increases, resulting in greater resistance and making it more adaptable to use under large loads or large deformations on bridges. It also provides better support to prevent excessive deformation of the curved load-bearing part 5.
[0031] In a specific embodiment, a limiting rod 13 is also provided at the bottom of the cavity of the buffer cylinder 9, and the limiting rod 13 is coaxially spaced from the buffer rod 10. In application, when the arc-shaped bearing part 5 deforms excessively, the buffer rod 10 can abut against the buffer rod 10 to form an arc-shaped bearing part 5 that has undergone excessive deformation. This effectively ensures that the elastic support 2 deforms within a reasonable range, preventing long-term excessive deformation and damage or failure, and ensuring the safety and service life of the entire connecting assembly.
[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the bottom of the receiving cavity 4 forms an arc-shaped cavity structure. When the elastic material is filled, and the arc-shaped bearing parts 5 on both sides undergo opposite or reverse displacement deformation, the arc-shaped cavity structure can be squeezed or stretched by the arc-shaped bearing parts 5 on both sides, thereby adapting to the displacement deformation. At the same time, the elastic material inside can also adapt to the change in cavity volume to adjust its height and width at the upper end face of the bridge body a, thereby adapting to small changes in the width of the weld. The elastic force of the arc-shaped cavity structure itself is also increased, resulting in better load-bearing capacity and better recovery of its initial state.
[0033] like Figure 4 , Figure 5 As shown, the support platform 1 is formed by casting an internal metal frame 14 and an external concrete structural layer 15. The metal frame 14 can be designed to conform to the shape of the overall support platform 1 or be set as a boss structure. The concrete structural layer 15 is cast on both its inner and outer sides, so that it has better load-bearing capacity and deformation resistance when bearing load, and plays a better role in stable support.
[0034] In a specific embodiment, the metal frame 14 extends horizontally to the concrete structure layer 15 on both sides to form limiting portions 16; the limiting portions 16 on both sides are respectively located between the two arc-shaped bearing portions 5 and below the receiving cavity 4. In application, in order to further prevent problems in the connection of bridge body a due to excessive formation of the arc-shaped bearing portion 5, or the arc-shaped bearing portion 5 from excessive deformation and elastic failure, this embodiment sets the limiting portions 16 to limit the maximum deformation of the arc-shaped bearing portion 5, and can support the arc-shaped bearing portion 5 after contact to prevent damage, thus achieving a good protection and limiting effect.
[0035] In a specific embodiment, both the metal frame 14 and the elastic support 1 are made of Q500qE steel.
[0036] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A component for connecting bridge structures, characterized in that, Includes a support platform and elastic support components supported on the support platform; in, The elastic support includes an elastic plate, with the center of the elastic plate recessed downward to form a concave receiving cavity, and the two sides of the elastic plate bent to form arc-shaped bearing portions. The ends of the arc-shaped bearing portions on both sides are bent to form horizontal connecting portions, and a plurality of connecting through holes are provided at intervals along the length direction of the horizontal connecting portions. Two positioning bearing grooves are symmetrically arranged on the support platform. The arc-shaped bearing parts on both sides are respectively installed in the two positioning bearing grooves, and the horizontal connecting part extends to the outside of the positioning bearing groove.
2. The bridge structural connection component according to claim 1, characterized in that, It also includes a buffer component located below the receiving cavity; The buffer component includes a buffer cylinder and a buffer rod respectively disposed between the two arc-shaped bearing portions on both sides. The buffer cylinder and the buffer rod are horizontally opposite to each other, and the buffer rod extends into the buffer cylinder. The buffer cylinder is filled with shock-absorbing sponge.
3. The bridge structural connection component according to claim 2, characterized in that, The end of the buffer rod that extends into the buffer cylinder is provided with a sliding plug; The shock-absorbing sponge is disposed in the cavity between the sliding plug and the buffer cylinder.
4. The bridge structural connection component according to claim 3, characterized in that, A limiting rod is also provided at the bottom of the cavity of the buffer cylinder, and the limiting rod is coaxially spaced from the buffer rod.
5. The bridge structural connection component according to claim 1, characterized in that, The bottom of the receiving cavity forms an arc-shaped cavity structure.
6. The bridge structural connection component according to claim 1, characterized in that, The support platform is constructed from an internal metal frame and an external concrete structural layer.
7. The bridge structural connection component according to claim 6, characterized in that, The metal frame extends horizontally to the concrete structure layer on both sides of its middle section to form a limiting part; The limiting portions on both sides are located between the arc-shaped bearing portions on both sides and below the receiving cavity.
8. The bridge structural connection component according to claim 6 or 7, characterized in that, The metal frame and elastic support components are both made of Q500qE steel.