A bridge deck panel
By adopting a design with cavities or low-density fillings inside the concrete bridge deck and an outer protective plate, the problems of deformation, noise, and corrosion of steel structure bridge decks have been solved, achieving higher stability and durability.
Patent Information
- Application Number
- CN202520989961.3
- 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 bridge decks of existing steel structure bridges are prone to deformation, slipperiness, noise, and significant vibration after long-term use, and the materials rust and corrode, leading to structural deterioration and environmental pollution.
The bridge deck is made of concrete and has spaced upper and lower steel reinforcement layers with cavities or low-density fillings in between. Foamed material is used as the low-density filling. It is equipped with an outer protective plate to enhance protection, and combined with ultra-high performance concrete and a hanging nail structure to improve stability and protection.
It effectively reduces bridge deck deformation and noise, improves flatness and seismic resistance, prevents material corrosion, extends service life and reduces environmental pollution.
Smart Images
Figure CN224678521U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bridge deck, and more particularly to a bridge deck for constructing temporary steel structure bridges. Background Technology
[0002] In the existing technology, the bridge deck of steel structure bridges is usually made of metal materials. After long-term use, bridge decks made of metal materials will deform. The bridge surface becomes slippery in the rainy season. After the bridge deck deforms, the assembly gap increases, which leads to problems such as reduced flatness, loud noise and obvious vibration when vehicles pass. With long-term outdoor use, the material rusts and corrodes, causing structural deterioration and environmental pollution. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a new type of bridge deck to overcome the shortcomings of the existing technology.
[0004] The technical solution adopted by this utility model is: a bridge deck, including a main body, wherein the main body is provided with an upper steel bar layer and a lower steel bar layer arranged at intervals, and the main body between the upper steel bar layer and the lower steel bar layer is provided with two or more cavities or low-density filling parts arranged at intervals, and a structural web is formed between two adjacent cavities or low-density filling parts, wherein the main body is made of concrete.
[0005] In this configuration, two adjacent cavities or low-density filling sections are arranged in parallel.
[0006] The low-density filler is made of foamed material.
[0007] The cross-section of the cavity or low-density filling part is triangular, quadrilateral, pentagonal, or hexagonal.
[0008] The cross-section of the cavity or low-density filling part 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 cross-section of the cavity or low-density filling part is triangular, and adjacent cavities or low-density filling parts are laid flat after being vertically mirrored.
[0010] In this structure, adjacent sides of two adjacent trigons overlap vertically, and the web of the structure is inclined.
[0011] The concrete in question is ultra-high performance concrete.
[0012] The foaming material can be polyurethane foam, polystyrene foam, polyethylene foam, polypropylene foam, polyvinyl chloride foam, phenolic foam, silicone foam, or bio-based foam.
[0013] It also includes a protective plate, which includes a vertical plate with a horizontal edge extending toward the main body at its upper or lower end. The protective plate is disposed on the thickness surface of the main body and is fixedly connected to the main body.
[0014] The lower surface of the main body is fixedly connected to a ferrule, and the lower surface of the ferrule is coplanar with the lower surface of the main body or the lower surface of the ferrule is higher than the lower surface of the main body.
[0015] The main body is provided with a hanging nail, the lower end of which is fixedly connected to a hamfer groove. The upper part of the main body is provided with a recessed hole, and the upper end of the hanging nail is located in the recessed hole.
[0016] The low-density filling portion includes a first filling portion and a second filling portion, which are combined to form the low-density filling portion.
[0017] The adjacent low-density filling sections are connected and fixed together.
[0018] Among them, the adjacent low-density filling parts are respectively provided with a first connecting part and a second connecting part on the side close to each other, and the first connecting part and the second connecting part are interference-fitted after the concave and convex parts are matched.
[0019] The low-density filling section has empty space.
[0020] In this triangle, all three sides are of equal length.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: the main material of the bridge deck in this application is concrete, and the concrete material has cavities or low-density filling parts. In addition, a protective plate is provided on the outer periphery of the main body, so that the main body of the concrete material is protected by the protective plate and avoids collision damage during installation or transportation. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 This is a schematic diagram of another embodiment of the present invention.
[0024] Figure 3 This is a structural schematic diagram of the present invention from an axial side view.
[0025] Figure 4 This is a structural schematic diagram of the present invention from another axial perspective.
[0026] Figure 5 This is a schematic diagram of the structure of the low-density filling part described in this utility model.
[0027] Figure 6This is a schematic diagram of the structural state of the low-density filling part described in this utility model.
[0028] Figure 7 This is a schematic diagram of the structure of the main body of this utility model connected to the Bailey plate. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0030] like Figures 1 to 6 As shown, a bridge deck according to this embodiment includes a main body 1. The main body 1 has an upper reinforcing bar layer 2 and a lower reinforcing bar layer 3 spaced apart. The upper and lower reinforcing bar layers 2 and 3 are made of metal materials, typically formed by cross-shaped reinforcing bars. The main body 1 between the upper and lower reinforcing bar layers 2 and 3 has two or more spaced cavities 5. In this embodiment, the cavity 5 is a hollow space, which can be filled in the main body 1 and formed by demolding after concrete pouring. The cavity 5 can also be filled with hollow tubing or hollow filler material, but not completely removed; this is also the cavity 5 described in this application. Another embodiment has two or more spaced low-density filling portions 4 between the upper and lower reinforcing bar layers 2 and 3. A structural web 11 is formed between adjacent cavities 5 or low-density filling portions 4. The main body 1 is made of concrete.
[0031] In a preferred embodiment, two adjacent cavities 5 or low-density filling portions 4 are arranged in parallel.
[0032] In a preferred embodiment, the low-density filler 4 is a foamed material. Foamed materials are lightweight, yet can support the concrete during the manufacturing of the bridge deck, and do not require secondary demolding later.
[0033] In a preferred embodiment, the cross-section of the cavity 5 or the low-density filling part 4 is triangular, quadrilateral, pentagonal, or hexagonal.
[0034] In a preferred embodiment, the cavity 5 or the low-density filling part 4 has a triangular cross-section. The three sides of the triangle can be straight lines or curves, and the intersections of adjacent sides of the triangle are either arc-shaped or sharp angles. In this embodiment, the triangular cross-section of the cavity 5 or the low-density filling part 4 forms a relatively stable support structure. The sides 45 of the triangle can be straight lines or curves, and the intersections can directly intersect to form a relatively sharp angle or be transitioned by arcs.
[0035] In a preferred embodiment, the cavity 5 or the low-density filling part 4 has a triangular cross-section, and adjacent cavities 5 or low-density filling parts 4 are laid flat after being vertically mirrored. In this embodiment, a triangular shape is used as an example. Two adjacent low-density filling parts 4 are laid flat and are on the same horizontal plane. The positional relationship between two adjacent low-density filling parts 4 is that one low-density filling part 4 is moved to the side of the other low-density filling part 4 after being vertically mirrored, with the other low-density filling part 4 as a reference. This arrangement structure can form more low-density filling parts 4 on the main body 1, thereby reducing weight while ensuring strength.
[0036] In a preferred embodiment, adjacent sides of two adjacent trigons overlap vertically, and the support beam 11 is inclined.
[0037] In a preferred embodiment, the concrete is ultra-high performance concrete.
[0038] 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.
[0039] In a preferred embodiment, a protective plate 7 is also included. The protective plate 7 includes a vertical plate 71, and the upper or lower end of the vertical plate 71 has a horizontal edge 72 extending towards the main body 1. The protective plate 7 is disposed on the thickness surface of the main body 1 and is fixedly connected to the main body 1. In a preferred embodiment, a protective plate 7 is also wrapped around the periphery of the main body 1, thereby enhancing the load-bearing strength of the bridge deck and preventing lateral damage.
[0040] In a preferred embodiment, a ferrule 8 is fixedly connected to the lower surface of the main body 1. The lower surface of the ferrule 8 is coplanar with the lower surface of the main body 1, or the lower surface of the ferrule 8 is higher than the lower surface of the main body 1. During installation, the lower surface of the main body 1 is supported by the support beam 11, and the ferrule 8 preferably interferes with the support beam 11's support of the main body 1.
[0041] In a preferred embodiment, the main body 1 is provided with a lifting nail 6, the lower end of which is fixedly connected to a ferrule 8. The upper surface of the main body 1 is provided with a recessed hole, and the upper end of the lifting nail 6 is located within the recessed hole. The upper surface of the main body 1 is the road surface, so its flatness should be ensured as much as possible. After the upper end of the lifting nail 6 is located within the recessed hole, the upper end of the lifting nail 6 will not protrude from the road surface, thus not affecting vehicle passability, and also enabling the lifting of the bridge deck.
[0042] In a preferred embodiment, the low-density filling part 4 includes a first filling part 41 and a second filling part 42, which are combined to form the low-density filling part 4. This combination of low-density filling parts 4 in this embodiment facilitates construction and helps to cope with the expansion and contraction stresses during concrete pouring. Preferably, the low-density filling part 4 has a free space 40. When the low-density filling part 4 is formed by combining the first filling part 41 and the second filling part 42, there is a free space 40 between the first filling part 41 and the second filling part 42.
[0043] In a preferred embodiment, the three sides of the triangular shape are of equal length.
[0044] In a preferred embodiment, adjacent low-density filling portions 4 are connected and fixed together.
[0045] In a preferred embodiment, adjacent low-density filling portions 4 are provided with a first connecting portion 43 and a second connecting portion 44 on their adjacent sides, respectively. The first connecting portion 43 and the second connecting portion 44 are interlocked after their concave and convex shapes are matched. After the first connecting portion 43 and the second connecting portion 44 are interlocked, they can be separated or fixedly joined, making disassembly and assembly convenient and quick.
[0046] As a preferred embodiment, such as Figure 7 As shown, a Bailey plate 9 is provided below the main body 1, and a pad 92 is provided below the upper chord 91 of the Bailey plate 9. A Haven groove 8 is located above the upper chord 91. One end of a fastener 93 is connected to the Haven groove 8, and the other end is connected to the pad 92, thereby fixing the main body 1 and the Bailey plate 9 together. In this embodiment, the fasteners are bolts and nuts, which are threaded together. Specifically, the bolt head is located in the Haven groove 8, and the bolt shank passes through the upper chord 91 and the pad 92 and is threadedly connected to the nut. In another embodiment, the positions of the nut and bolt are interchanged, with the nut located in the Haven groove 8 and the bolt head located below the pad 92. As a preferred embodiment, the upper chord 91 and the Haven groove 8 are intersecting, more preferably cross-shaped. After the upper chord 91 and the Haven groove 8 cross-shaped, the position of the fastener 93 can be adjusted along the Haven groove 8. During installation, the fastener 93 can be adjusted to the optimal position to achieve the positional correspondence with the pad 92 and the threaded connection between the bolt and the nut.
Claims
1. A bridge deck, comprising a main body, wherein the main body has an upper reinforcing steel layer and a lower reinforcing steel layer spaced apart, characterized in that, The main component between the upper and lower steel reinforcement layers has two or more spaced cavities or low-density filling parts, and a structural web is formed between two adjacent cavities or low-density filling parts. The main component is made of concrete. It also includes a protective plate, which is disposed on the thickness surface of the main body and fixedly connected to the main body.
2. A bridge deck as described in claim 1, characterized in that, Adjacent cavities or low-density filling sections are arranged in parallel.
3. A bridge deck as described in claim 1, characterized in that, The low-density filler is made of foam material.
4. A bridge deck as described in claim 1, characterized in that, The cross-section of the cavity or low-density filling part is triangular, quadrilateral, pentagonal, or hexagonal.
5. A bridge deck as described in claim 4, characterized in that, The cross-section of the cavity or low-density filling part is triangular. 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. A bridge deck as described in claim 1, characterized in that, The cross-section of the cavity or low-density filling part is triangular, and adjacent cavities or low-density filling parts are laid flat after being vertically mirrored.
7. A bridge deck as described in claim 5 or 6, characterized in that, The adjacent sides of two adjacent trigons overlap vertically, and the web of the structure is inclined.
8. A bridge deck as described in claim 1, characterized in that, The concrete is ultra-high performance concrete.
9. A bridge deck as described in claim 3, characterized in that, The foaming material can be polyurethane foam, polystyrene foam, polyethylene foam, polypropylene foam, polyvinyl chloride foam, phenolic foam, silicone foam, or bio-based foam.
10. A bridge deck as claimed in claim 1, characterized in that, The guard plate includes a vertical plate, the upper or lower end of which has a horizontal edge extending toward the main body.
11. A bridge deck as claimed in claim 1, characterized in that, The lower surface of the main body is fixedly connected to a ferrule, and the lower surface of the ferrule is coplanar with the lower surface of the main body or the lower surface of the ferrule is higher than the lower surface of the main body.
12. A bridge deck as claimed in claim 1, characterized in that, The main body is provided with a hanging nail, the lower end of which is fixedly connected to a ferrule. The upper part of the main body is provided with a recessed hole, and the upper end of the hanging nail is located in the recessed hole.
13. A bridge deck as claimed in claim 1, characterized in that, The low-density filler includes a first filler and a second filler, which are combined to form the low-density filler.
14. A bridge deck as described in claim 1 or 13, characterized in that, Adjacent low-density fillers are connected and fixed together.
15. A bridge deck as described in claim 14, characterized in that, The adjacent low-density filling portions are respectively provided with a first connecting portion and a second connecting portion on the side close to each other, and the first connecting portion and the second connecting portion are interference-fitted after the concave and convex parts are matched.
16. A bridge deck as claimed in claim 1, characterized in that, The low-density filling section has empty space.
17. A bridge deck as described in claim 5, characterized in that, The three sides of a triangle are of equal length.
18. A bridge deck as claimed in claim 11 or 12, characterized in that, A Bailey plate is provided below the main body, and a pad is provided below the upper chord of the Bailey plate. A Haven groove is located above the upper chord. One end of the fastener is connected to the Haven groove, and the other end is connected to the pad, thereby fixing the main body and the Bailey plate together.
19. A bridge deck as claimed in claim 18, characterized in that, The upper chord is set to intersect with the hapten groove.