A filler body provided in a bridge deck
By setting infill bodies of specific shapes and materials inside the concrete bridge deck, the problems of complex demolding and damage are solved, achieving the effect of lightweight construction without compromising the load-bearing performance of the bridge deck.
Patent Information
- Application Number
- CN202520989805.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-20
AI Technical Summary
The demolding process for concrete bridge decks in existing technologies is complex and may damage the concrete, increasing the workload and difficulty of the operation.
An infill material made of foamed material is installed inside the concrete bridge deck. The infill material has empty space, a specific geometric cross-section, and is fixed by connecting parts to form parallel or staggered arrangements to reduce weight and maintain load-bearing performance.
It simplifies the demolding process, reduces the weight of the bridge deck, while maintaining the load-bearing performance of the bridge deck, and reduces the difficulty of demolding and the risk of material damage.
Smart Images
Figure CN224678520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a filler material disposed within a bridge deck. Background Technology
[0002] In existing technologies, concrete bridge decks have internal casting molds. After casting is completed, demolding is required, which increases the workload and may damage the concrete. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a filler material disposed in the bridge deck to overcome the shortcomings of the existing technology.
[0004] The technical solution adopted by this utility model is: a filler material disposed in the bridge deck, wherein the filler material is placed in the concrete when the bridge deck is poured with concrete, the filler material includes an outer wall, the outer wall has a free space, or the filler material is a foamed material.
[0005] The filling element consists of two or more elements, with adjacent filling elements arranged in parallel.
[0006] The outer wall is made of plastic or sheet metal.
[0007] The cross-section of the filler is triangular, quadrilateral, pentagonal, or hexagonal.
[0008] The cross-section of the filler is triangular, and the three sides of the triangle can be straight or curved. The adjacent sides of the triangle intersect at an arc or a sharp angle.
[0009] The infill body consists of two or more infill bodies, which are laid flat after being vertically mirrored and are arranged in parallel.
[0010] The filler is a foaming material, which is polyurethane foam, polystyrene foam, polyethylene foam, polypropylene foam, polyvinyl chloride foam, phenolic foam, silicone foam, or bio-based foam.
[0011] The outer wall includes a first filling part and a second filling part, which are combined to form a filling body. The empty space is located on the side of the first filling part and / or the second filling part that is close to it, or the empty space is located inside the first filling part or the second filling part.
[0012] In this system, adjacent fillers are connected and fixed together.
[0013] The adjacent fillers are provided with a first connecting part and a second connecting part on their adjacent sides, and the first connecting part and the second connecting part are interlocked after the concave and convex parts are matched.
[0014] The filler has a protrusion at one end of its outer wall along its length and a recess at the other end, with the protrusion and recess of the two mating fillers matching each other.
[0015] The infill has a triangular cross-section, and there are two or more infills. Adjacent infills are laid flat after being vertically mirrored, and adjacent infills are arranged in parallel.
[0016] In this case, the adjacent sides of two adjacent trigons overlap vertically.
[0017] The advantages of this utility model over the prior art are as follows: This invention can be easily filled into concrete, reducing the overall weight of the concrete bridge deck without compromising its load-bearing capacity. The filler is lightweight and can remain permanently in the cast-in-place structure, reducing the difficulty of removal. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a structural schematic diagram of the disassembled state of this utility model. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] like Figures 1 to 2 As shown in this embodiment, an infill material disposed within a bridge deck is placed in the concrete during the pouring of the bridge deck. The infill material includes an outer wall 1, and the outer wall 1 has a free space 2 within it. Another embodiment is that the infill material is a foamed material, with a solid or hollow interior. Because foamed materials have low density, they can also be solid. In this application, the infill material is pre-embedded in the concrete. Because the infill material has a cavity or uses a low-density foamed material, the weight of the infill material is reduced compared to a solid bridge deck.
[0022] In a preferred embodiment, there are two or more fillers, with adjacent fillers arranged in parallel. Parallelism in this embodiment includes both absolute parallelism and near-parallelism. Parallelism includes the overall parallelism of the two fillers, as well as the parallelism between their central axes. For example, there are two or more fillers, with adjacent fillers laid flat after being vertically mirrored, and the adjacent fillers are arranged in parallel. The fillers in this structure are not parallel as a whole, but the central axes of the two fillers in the length direction are parallel; this parallelism also falls under the parallelism claimed in this application. Furthermore, the arrangement of adjacent fillers laid flat after being vertically mirrored allows for the formation of a larger area of low-density filler 4 on the main component 1, thereby reducing weight while ensuring the overall strength of the concrete structure.
[0023] In a preferred embodiment, the filler is made of foamed material, plastic material, or sheet metal. Specifically, the outer wall 1 is made of foamed material, plastic material, or sheet metal, and has an internal empty space 2.
[0024] In a preferred embodiment, the cross-section of the filler is triangular, quadrilateral, pentagonal, or hexagonal.
[0025] In a preferred embodiment, the cross-section of the filler is triangular, and the three sides of the triangle can be straight lines or curves. The adjacent sides 13 of the triangle intersect at arcs or sharp angles.
[0026] In a preferred embodiment, there are two or more fillers, and adjacent fillers are laid flat after being vertically mirrored, and adjacent fillers are arranged in parallel.
[0027] In a preferred embodiment, the foaming material may be polyurethane foam, polystyrene foam, polyethylene foam, polypropylene foam, polyvinyl chloride foam, phenolic foam, silicone foam, or bio-based foam.
[0028] In a preferred embodiment, the outer wall includes a first filling part 11 and a second filling part 12, which are combined to form a filling body. The empty space 2 is located on the side of the first filling part 11 or / and the second filling part 12 that is close to it, or the empty space 2 is located in the first filling part 11 or the second filling part 12.
[0029] In a preferred embodiment, the infill material has a triangular cross-section, and there are two or more infill materials. Adjacent infill materials are laid flat after being vertically mirrored and are arranged parallel to each other. Adjacent sides of two adjacent triangular shapes overlap vertically, causing the web of the structure to be inclined. This arrangement allows for the formation of a larger area of low-density infill on the main body, thereby reducing weight while maintaining strength. The infill materials are also arranged in a staggered pattern, which allows for a more even distribution of stress under external pressure, resulting in better stress distribution.
[0030] In a preferred embodiment, adjacent fillers are connected and fixed together.
[0031] In a preferred embodiment, adjacent fillers are provided with a first connecting portion 41 and a second connecting portion 42 on their adjacent sides, respectively. The first connecting portion 41 and the second connecting portion 42 are interlocked and press-fitted together. After the first connecting portion 41 and the second connecting portion 42 are press-fitted together, they can be separated or fixedly joined, making disassembly and assembly convenient and quick. In a preferred embodiment, the filler has a protrusion 31 at one end of its outer wall 1 along the length direction and a recess 32 at the other end, with the protrusion 31 and recess 32 of the two mating fillers matching each other. In this embodiment, the fillers can be mated along the length direction, and the mating of the protrusions and recesses after mating restricts radial movement, forming a relatively stable structure after mating.
Claims
1. A filler disposed within a bridge deck, characterized in that, When pouring concrete for a bridge deck, the filler is placed in the concrete. The filler includes an outer wall with an empty space inside, or the filler is a foamed material.
2. The filler disposed within the bridge deck as described in claim 1, characterized in that, The filler consists of two or more fillers, with adjacent fillers arranged in parallel.
3. The filler disposed within the bridge deck as described in claim 1, characterized in that, The outer wall is made of plastic or sheet metal.
4. The filler disposed within the bridge deck as described in claim 1, characterized in that, The cross-section of the infill is triangular, quadrilateral, pentagonal, or hexagonal.
5. The filler disposed within the bridge deck as described in claim 4, characterized in that, The cross-section of the infill is triangular, and the three sides of the triangle can be straight or curved. The adjacent sides of the triangle intersect at an arc or a sharp angle.
6. The filler disposed within the bridge deck as described in claim 1, characterized in that, The infiller consists of two or more infillers, which are laid flat after being vertically mirrored and are arranged in parallel.
7. The filler disposed within the bridge deck as described in claim 1, characterized in that, The filler is a foaming material, which is polyurethane foam, polystyrene foam, polyethylene foam, polypropylene foam, polyvinyl chloride foam, phenolic foam, silicone foam, or bio-based foam.
8. A filler disposed within a bridge deck as described in claim 1 or 7, characterized in that, The outer wall includes a first filling part and a second filling part, which are combined to form a filling body. The empty space is located on the side of the first filling part and / or the second filling part that is close to it, or the empty space is located inside the first filling part or the second filling part.
9. A filler disposed within a bridge deck as described in claim 2 or 6, characterized in that, Adjacent fillers are connected and fixed together.
10. A filler disposed within a bridge deck as described in claim 2 or 6, characterized in that, The adjacent fillers are provided with a first connecting part and a second connecting part on their adjacent sides, and the first connecting part and the second connecting part are interlocked after the concave and convex parts are matched.
11. The filler disposed within a bridge deck as described in claim 1, characterized in that, The filler has a protrusion at one end of its outer wall along the length direction and a concave part at the other end, with the protrusion and concave parts of the two mating fillers matching each other.
12. The filler disposed within a bridge deck as described in claim 1, characterized in that, The cross-section of the infill is triangular, and there are two or more infills. Adjacent infills are laid flat after being vertically mirrored, and adjacent infills are arranged in parallel.
13. A filler disposed within a bridge deck as described in claim 12, characterized in that, The adjacent sides of two adjacent trigons overlap vertically.