Continuous rigid frame bridge cantilever
By setting up a splicing sealing mechanism at the bridge cantilever joints, the problems of leaking and pouring of the cantilever splicing gaps of the continuous rigid structure bridge are solved, and the sealing and construction accuracy of the bridge cantilever joints are improved, the restoration process is simplified, and the bridge base layer is protected.
Patent Information
- Application Number
- CN202421681491.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In the prior art, the continuous rigid bridge cantilever has gap leakage after splicing and the pavement layer is cumbersome to pour, and repair is difficult to control, which can easily damage the base layer and affect flatness and construction accuracy.
A splicing sealing mechanism is adopted, including a first sealing plate, a second sealing plate, a splicing convex teeth and a splicing groove. The contact area is increased by meshing connection, combined with the side baffle and the positioning column, and a sealed cast molding groove is formed to achieve sealing and convenient repair of the joints.
It improves the sealing of the bridge cantilever joints, simplifies the pouring process of the pavement layer, ensures construction accuracy and convenience of subsequent restoration, and protects the integrity of the bridge base layer.
Smart Images
Figure CN223061429U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of the cantilever technology of rigid frame bridges, and particularly relates to a cantilever of a continuous rigid frame bridge. Background Technique
[0002] At present, most medium and small-span bridges adopt simply supported beams or continuous rigid frame bridges. Compared with similar bridges (such as continuous beam bridges and T-shaped rigid frame bridges), multi-span rigid frame bridges maintain the attributes of continuous beams in the superstructure, have large spanning capabilities, low construction difficulty, smooth driving, simple maintenance, and low cost. Multi-span continuous rigid frame bridges are provided with hinges at the mid-span of the main span, and the spans on both sides are continuous systems. The weight of the continuous beam in the side span can be used to make the T-shaped structure into unequal-length cantilevers to increase the span of the main span. After the ends of the cantilever beams are butt-jointed, construction is carried out. In the prior art, on-site casting is used for construction. By building a steel bar frame and formwork between two adjacent cantilever beams, and then injecting a mixture to pour the road surface layer.
[0003] At present, after the butting of two cantilevers of a rigid frame bridge, a splicing gap will be generated. When the mortar is poured on the road surface, it will leak into the gap, affecting the flatness of the road surface. Moreover, the method of building formwork to form a pouring and molding groove for the pouring of the road surface layer at the splicing part is relatively cumbersome. In addition, when the road surface layer at this place ages and is damaged, it needs to be chiseled and re-poured. However, the construction accuracy of strongly damaging the old road surface layer is not easy to control, which makes the chiseling construction easy to damage the base layer of the cantilever of the rigid frame bridge, and the flatness of the pouring base surface of the road surface layer cannot be guaranteed. Content of the Utility Model
[0004] The purpose of the utility model is to provide a cantilever of a continuous rigid frame bridge to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A cantilever of a continuous rigid frame bridge, including a first bridge cantilever and a second bridge cantilever. The second bridge cantilever is arranged on one side of the first bridge cantilever. A splicing and sealing mechanism is arranged between the first bridge cantilever and the second bridge cantilever. The splicing and sealing mechanism includes a first sealing plate, a second sealing plate, splicing convex teeth and splicing tooth grooves. The first sealing plate is arranged on the first bridge cantilever, the second sealing plate is arranged on the second bridge cantilever, the splicing convex teeth are arranged on the first sealing plate, the splicing tooth grooves are arranged on the second sealing plate, and side baffles are fixed at the side edges of the upper end faces of the first sealing plate and the second sealing plate.
[0006] It should be noted in the solution that the first sealing plate and the second sealing plate are distributed oppositely, and the splicing convex teeth of the first sealing plate are meshed and connected with the splicing tooth grooves of the second sealing plate.
[0007] Further, it is worth noting that the upper end surfaces of the first bridge cantilever and the second bridge cantilever are provided with assembly notches, and positioning slots are provided on the bottom walls where the assembly notches are located.
[0008] Furthermore, it should be noted that positioning insertion posts are vertically fixed to the lower end surfaces of the first sealing plate and the second sealing plate, and the positioning insertion posts are adapted to the positioning slots.
[0009] As a preferred implementation manner, the side baffles on the first sealing plate are in contact with the side baffles on the second sealing plate, and both the first sealing plate and the second sealing plate are arranged in the assembly notches.
[0010] As a preferred implementation manner, a road surface pouring groove is provided between the first sealing plate and the second sealing plate, and the road surface pouring layer is filled inside the road surface pouring groove.
[0011] Compared with the prior art, a continuous rigid frame bridge cantilever provided by the present utility model has at least the following beneficial effects:
[0012] Through the provided splicing and sealing mechanism, the splicing convex teeth of the first sealing plate are engaged with the splicing tooth grooves of the second sealing plate, which can increase the contact area of the splicing of the first sealing plate and the second sealing plate and improve the tightness, thereby ensuring the sealing performance of the splicing of the first sealing plate and the second sealing plate and realizing the function of isolating the joint of the first bridge cantilever and the second bridge cantilever.
[0013] Through the provided first sealing plate, second sealing plate and side baffles, the first sealing plate, second sealing plate and side baffles form a casting molding groove with bottom sealing, providing implementation conditions for directly pouring the road surface layer. In addition, the rigid isolation effect of the first sealing plate and the second sealing plate also facilitates directly removing and damaging the old road surface subsequently. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 It is a three-dimensional view of the overall structure of a continuous rigid frame bridge cantilever of the present utility model;
[0016] Figure 2 It is a three-dimensional view of the road surface pouring groove structure of a continuous rigid frame bridge cantilever of the present utility model;
[0017] Figure 3 It is a three-dimensional view of the assembly notch structure of a continuous rigid frame bridge cantilever of the present utility model;
[0018] Figure 4 This is a three-dimensional view of the splicing convex teeth and splicing tooth grooves of a continuous rigid-frame bridge cantilever of the present utility model.
[0019] In the figure: 1. First bridge cantilever; 2. Second bridge cantilever; 3. First sealing plate; 4. Second sealing plate; 5. Splicing convex teeth; 6. Splicing tooth grooves; 7. Positioning insertion posts; 8. Side baffles; 9. Assembly notch; 10. Positioning slot; 11. Road surface pouring layer; 12. Road surface pouring groove. Specific embodiments
[0020] The following further describes the present utility model in conjunction with embodiments.
[0021] Please refer to Figures 1-4 , the present utility model provides a continuous rigid-frame bridge cantilever, including a first bridge cantilever 1 and a second bridge cantilever 2. The second bridge cantilever 2 is arranged on one side of the first bridge cantilever 1. A splicing and sealing mechanism is arranged between the first bridge cantilever 1 and the second bridge cantilever 2. The splicing and sealing mechanism includes a first sealing plate 3, a second sealing plate 4, splicing convex teeth 5 and splicing tooth grooves 6. The first sealing plate 3 is arranged on the first bridge cantilever 1, the second sealing plate 4 is arranged on the second bridge cantilever 2, the splicing convex teeth 5 are arranged on the first sealing plate 3, the splicing tooth grooves 6 are arranged on the second sealing plate 4, and side baffles 8 are fixed on the upper end face side edges of the first sealing plate 3 and the second sealing plate 4.
[0022] Further, as shown in Figure 1 , Figure 2 and Figure 3 , it is specifically noted that the first sealing plate 3 and the second sealing plate 4 are distributed oppositely, and the splicing convex teeth 5 of the first sealing plate 3 are meshed and connected with the splicing tooth grooves 6 of the second sealing plate 4.
[0023] Further, as shown in Figure 3 , it is specifically noted that assembly notches 9 are formed on the upper end faces of the first bridge cantilever 1 and the second bridge cantilever 2, and positioning slots 10 are formed on the bottom walls where the assembly notches 9 are located.
[0024] Further, as shown in Figure 1 , Figure 2 and Figure 4 , it is specifically noted that positioning insertion posts 7 are vertically fixed on the lower end faces of the first sealing plate 3 and the second sealing plate 4, and the positioning insertion posts 7 are adapted to the positioning slots 10.
[0025] Further, as shown in Figure 4 , it is specifically noted that the side baffle 8 on the first sealing plate 3 abuts against the side baffle 8 on the second sealing plate 4, and both the first sealing plate 3 and the second sealing plate 4 are arranged in the assembly notch 9.
[0026] Furthermore, as Figure 1 shown, it is worth specifically stating that a road surface pouring groove 12 is provided between the first sealing plate 3 and the second sealing plate 4, and the road surface pouring layer 11 is filled inside the road surface pouring groove 12.
[0027] This solution has the following working process: Before use, first suspend and join the first bridge cantilever 1 and the second bridge cantilever 2. Subsequently, the first sealing plate 3 is inserted into the assembly notch 9 of the first bridge cantilever 1, and the second sealing plate 4 is inserted into the assembly notch 9 of the second bridge cantilever 2. At this time, the splicing convex teeth 5 of the first sealing plate 3 are engaged with the splicing tooth grooves 6 of the second sealing plate 4, which can increase the contact area of the splicing of the first sealing plate 3 and the second sealing plate 4 and improve the tightness, thereby ensuring the sealing performance of the splicing of the first sealing plate 3 and the second sealing plate 4 and achieving the function of isolating the joint between the first bridge cantilever 1 and the second bridge cantilever 2; during the construction of the road surface pouring layer 11, the first sealing plate 3, the second sealing plate 4 and the side baffle 8 form a bottom-sealed pouring and molding groove to provide implementation conditions for directly pouring the road surface layer. In addition, the rigid isolation function of the first sealing plate 3 and the second sealing plate 4 also facilitates directly removing and damaging the old road surface subsequently.
[0028] In summary: The splicing convex teeth 5 of the first sealing plate 3 are engaged with the splicing tooth grooves 6 of the second sealing plate 4, which can increase the contact area of the splicing of the first sealing plate 3 and the second sealing plate 4 and improve the tightness, thereby ensuring the sealing performance of the splicing of the first sealing plate 3 and the second sealing plate 4 and achieving the function of isolating the joint between the first bridge cantilever 1 and the second bridge cantilever 2; the first sealing plate 3, the second sealing plate 4 and the side baffle 8 form a bottom-sealed pouring and molding groove to provide implementation conditions for directly pouring the road surface layer. In addition, the rigid isolation function of the first sealing plate 3 and the second sealing plate 4 also facilitates directly removing and damaging the old road surface subsequently.
[0029] The above-mentioned is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A cantilever of a continuous rigid frame bridge, comprising a first bridge cantilever (1) and a second bridge cantilever (2), the second bridge cantilever (2) being arranged on one side of the first bridge cantilever (1), characterized in that: A splicing and sealing mechanism is arranged between the first bridge cantilever (1) and the second bridge cantilever (2). The splicing and sealing mechanism includes a first sealing plate (3), a second sealing plate (4), splicing convex teeth (5) and splicing tooth grooves (6). The first sealing plate (3) is arranged on the first bridge cantilever (1), the second sealing plate (4) is arranged on the second bridge cantilever (2), the splicing convex teeth (5) are arranged on the first sealing plate (3), the splicing tooth grooves (6) are arranged on the second sealing plate (4), and side baffles (8) are fixed at the side edges of the upper end faces of the first sealing plate (3) and the second sealing plate (4).
2. A cantilever of a continuous rigid frame bridge according to claim 1, characterized in that: The first sealing plate (3) and the second sealing plate (4) are distributed oppositely, and the splicing convex teeth (5) of the first sealing plate (3) are meshed and connected with the splicing tooth grooves (6) of the second sealing plate (4).
3. A cantilever of a continuous rigid frame bridge according to claim 2, characterized in that: Assembly notch openings (9) are formed in the upper end faces of the first bridge cantilever (1) and the second bridge cantilever (2), and positioning slot openings (10) are formed in the bottom walls where the assembly notch openings (9) are located.
4. A cantilever of a continuous rigid-frame bridge according to claim 3, characterized in that: Positioning plug posts (7) are vertically fixed on the lower end faces of the first sealing plate (3) and the second sealing plate (4), and the positioning plug posts (7) are adapted to the positioning slot openings (10).
5. A cantilever of a continuous rigid frame bridge according to claim 4, characterized in that: The side baffle (8) on the first sealing plate (3) abuts against the side baffle (8) on the second sealing plate (4), and both the first sealing plate (3) and the second sealing plate (4) are arranged in the assembly notch opening (9).
6. A cantilever of a continuous rigid frame bridge according to claim 5, characterized in that: A road surface pouring groove (12) is arranged between the first sealing plate (3) and the second sealing plate (4), and a road surface pouring layer (11) is filled in the road surface pouring groove (12).