Concrete structure with good anti-cracking effect for bridge floor continuous expansion joint
By setting up reinforced structures in the concrete layer of the bridge deck expansion joint and mixing imitation steel fibers, the problem of poor crack resistance of the existing bridge deck expansion joint concrete is solved, which significantly improves crack resistance and tensile strength and extends the service life of the bridge .
Patent Information
- Application Number
- CN202420106821.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-17
AI Technical Summary
The existing concrete for expansion joints of bridges have poor crack resistance, which leads to prone to cracks and depressions after long-term use, which cannot meet the needs of bridges.
Adopt a reinforced structure composed of reinforced horizontal bars, reinforced vertical bars and reinforced vertical bars to fix each other, and imitation steel fibers are uniformly mixed into the concrete layer, and anti-corrosion coating is sprayed on the outer surface, combining the waterproof layer and the bridge deck layer to improve the resistance of the concrete layer. Cracking properties and structural strength.
Through the use of reinforced structures and imitation steel fibers, the crack resistance and tensile strength of the concrete layer are significantly improved, the service life of the reinforced structure is extended, and the overall performance and corrosion resistance of the bridge are enhanced.
Smart Images
Figure CN222160919U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge deck expansion joint construction, and in particular relates to a concrete structure with good anti-cracking effect for a continuous expansion joint of a bridge deck. Background Art
[0002] The expansion joint of the bridge deck refers to a structural joint set at an appropriate position along the direction of the construction joint of the bridge deck to prevent the bridge from expanding and contracting due to climate temperature changes, causing cracks or damage to the bridge deck. The setting of the expansion joint of the bridge deck divides the bridge into two independent parts, allowing the bridge to expand and contract horizontally along its long direction, thereby offsetting the effects of thermal expansion and contraction.
[0003] However, some existing concrete used for bridge deck expansion joints have poor crack resistance. As the service time continues to increase, cracks and dents are prone to occur after long-term use, so they cannot meet the requirements of existing technologies. Utility Model Content
[0004] The utility model aims to provide a concrete structure with good anti-cracking effect for continuous expansion joints of bridge decks, so as to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, this application adopts the following technical solutions:
[0006] A concrete structure with good anti-cracking effect for continuous expansion joints of bridge decks, comprising a concrete layer, a bridge deck layer arranged above the concrete layer, a waterproof layer arranged between the concrete layer and the bridge deck layer, a bottom plate layer arranged at the bottom of the concrete layer, the bottom plate layer comprising a middle plate, a secondary side plate fixedly arranged on the outer side of the middle plate, a side plate fixedly arranged on the outer side of the secondary side plate, and a reinforcement structure also arranged in the concrete layer.
[0007] Preferably, the reinforcement structure is composed of mutually fixed reinforcing transverse ribs, reinforcing vertical ribs and reinforcing longitudinal ribs, and the reinforcing transverse ribs, reinforcing vertical ribs and reinforcing longitudinal ribs are arranged perpendicular to each other, and the reinforcing vertical ribs are fixedly inserted on the bottom plate layer.
[0008] Preferably, the reinforcing transverse ribs, the reinforcing vertical ribs and the reinforcing longitudinal ribs are fixed by welding.
[0009] Preferably, an anti-corrosion coating is sprayed on the outer surface of the reinforcement structure.
[0010] Preferably, imitation steel fibers are uniformly mixed into the concrete layer.
[0011] Preferably, the waterproof layer is composed of a waterproof coiled material sheet, and the bridge deck layer is carbon fiber cloth.
[0012] In summary, the technical effects and advantages of the utility model are as follows:
[0013] 1. By setting a reinforcement structure composed of reinforced transverse bars, reinforced vertical bars and reinforced longitudinal bars fixed to each other inside the concrete layer, the structural strength of the concrete layer is improved, thereby improving the crack resistance of the concrete layer. The reinforced transverse bars, reinforced vertical bars and reinforced longitudinal bars are arranged perpendicular to each other, so that the force inside the concrete layer can be uniform and dispersed, which can further ensure the crack resistance of the concrete layer.
[0014] 2. By spraying an anti-corrosion coating on the outer surface of the reinforced structure, the anti-corrosion coating can improve the corrosion resistance of the reinforced transverse reinforcements, the reinforced vertical reinforcements and the reinforced longitudinal reinforcements, thereby extending the service life of the reinforced structure and thereby improving the service life of the bridge.
[0015] 3. By uniformly mixing the imitation steel fibers into the concrete layer, the imitation steel fibers can improve the tensile strength of the concrete layer, thereby further improving the crack resistance of the concrete layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the reinforcement structure;
[0018] Figure 3 It is a cross-sectional schematic diagram of the utility model;
[0019] Figure 4 It is a bottom view schematic diagram of the utility model.
[0020] In the figure: 1. Concrete layer; 2. Bridge deck layer; 3. Waterproof layer; 4. Bottom plate layer; 41. Middle plate; 42. Secondary side plate; 43. Side plate; 5. Reinforced structure; 51. Strengthened transverse reinforcement; 52. Strengthened vertical reinforcement; 53. Strengthened longitudinal reinforcement. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0023] like Figure 1-4A concrete structure with good anti-cracking effect for a continuous expansion joint of a bridge deck is shown, comprising a concrete layer 1, a bridge deck layer 2 is arranged above the concrete layer 1, a waterproof layer 3 is arranged between the concrete layer 1 and the bridge deck layer 2, a bottom plate layer 4 is arranged at the bottom of the concrete layer 1, the bottom plate layer 4 comprises a middle plate 41, a secondary side plate 42 is fixedly arranged on the outer side of the middle plate, and a side plate 43 is fixedly arranged on the outer side of the secondary side plate 42.
[0024] Furthermore, a reinforcement structure 5 is provided in the concrete layer 1, wherein the reinforcement structure is composed of mutually fixed reinforcing transverse ribs 51, reinforcing vertical ribs 52 and reinforcing longitudinal ribs 53, and the reinforcing transverse ribs 51, the reinforcing vertical ribs 52 and the reinforcing longitudinal ribs 53 are arranged perpendicular to each other. The reinforcing transverse ribs 51, the reinforcing vertical ribs 52 and the reinforcing longitudinal ribs 53 are fixed by welding, and the reinforcing vertical ribs 52 are fixedly inserted on the bottom plate layer 4.
[0025] It should be noted that: by arranging a reinforcement structure 5 composed of reinforced transverse bars 51, reinforced vertical bars 52 and reinforced longitudinal bars 53 fixed to each other inside the concrete layer 1, the structural strength of the concrete layer 1 is improved, and then the crack resistance of the concrete layer 1 is improved, wherein the reinforced transverse bars 51, the reinforced vertical bars 52 and the reinforced longitudinal bars 53 are arranged perpendicular to each other, so that the force inside the concrete layer 1 can be uniform and dispersed, and the crack resistance of the concrete layer 1 can be further guaranteed. The reinforced transverse bars 51, the reinforced vertical bars 52 and the reinforced longitudinal bars 53 are fixed together by welding, which can improve the structural strength of the reinforcement structure 5, indirectly guarantee the strength of the concrete layer 1, and then ensure its crack resistance.
[0026] The outer surface of the reinforcement structure 5 is sprayed with an anti-corrosion coating, which can improve the corrosion resistance of the reinforcing transverse ribs 51, the reinforcing vertical ribs 52 and the reinforcing longitudinal ribs 53, thereby extending the service life of the reinforcement structure 5 and thus improving the service life of the bridge.
[0027] The imitation steel fibers are uniformly mixed into the concrete layer 1. The imitation steel fibers can improve the tensile strength of the concrete layer 1, and further improve the crack resistance of the concrete layer 1.
[0028] The waterproof layer 3 is composed of a waterproof coiled material board, and the bridge deck layer 2 is a carbon fiber cloth. The waterproof layer 3 is composed of a waterproof coiled material board, which is a waterproof material made of high molecular polymer as a basic raw material and has excellent waterproof effect; the carbon fiber cloth can strengthen the concrete layer 1 and improve the stress performance, which can reduce the original structural stress and reduce the occurrence of cracks.
[0029] Working principle: A reinforcement structure 5 consisting of mutually fixed reinforcing transverse bars 51, reinforcing vertical bars 52 and reinforcing longitudinal bars 53 is arranged inside the concrete layer 1 to improve the structural strength of the concrete layer 1 and further improve the crack resistance of the concrete layer 1. The reinforcing transverse bars 51, the reinforcing vertical bars 52 and the reinforcing longitudinal bars 53 are arranged perpendicular to each other, so that the force inside the concrete layer 1 can be uniform and dispersed, and the crack resistance of the concrete layer 1 can be further guaranteed. The reinforcing transverse bars 51, the reinforcing vertical bars 52 and the reinforcing longitudinal bars 53 are fixed together by welding, which can improve the structural strength of the reinforcement structure 5 and indirectly ensure the strength of the concrete layer 1 and further ensure its crack resistance.
[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A concrete structure with good crack resistance for continuous expansion joints on bridge decks, comprising a concrete layer (1), Features: A bridge deck layer (2) is arranged above the concrete layer (1), a waterproof layer (3) is arranged between the concrete layer (1) and the bridge deck layer (2), a bottom plate layer (4) is arranged at the bottom of the concrete layer (1), the bottom plate layer (4) comprises a middle plate (41), a secondary side plate (42) is fixedly arranged on the outer side of the middle plate, a side plate (43) is fixedly arranged on the outer side of the secondary side plate (42), and a reinforcement structure (5) is also arranged in the concrete layer (1).
2. A concrete structure with good crack resistance for continuous expansion joints on bridge decks according to claim 1, Features: The reinforcement structure is composed of mutually fixed reinforcing transverse ribs (51), reinforcing vertical ribs (52) and reinforcing longitudinal ribs (53), and the reinforcing transverse ribs (51), the reinforcing vertical ribs (52) and the reinforcing longitudinal ribs (53) are arranged perpendicular to each other, and the reinforcing vertical ribs (52) are fixedly inserted on the bottom plate layer (4).
3. A concrete structure with good crack resistance for continuous expansion joints on bridge decks according to claim 2, Features: The reinforcing transverse ribs (51), the reinforcing vertical ribs (52) and the reinforcing longitudinal ribs (53) are fixed by welding.
4. The concrete structure with good crack resistance for continuous expansion joints on bridge decks according to claim 1, Features: An anti-corrosion coating is sprayed on the outer surface of the reinforcement structure (5).
5. The concrete structure with good crack resistance for continuous expansion joints on bridge decks according to claim 1, Features: Imitation steel fibers are evenly mixed into the concrete layer (1).
6. The concrete structure with good crack resistance for continuous expansion joints on bridge decks according to claim 1, Features: The waterproof layer (3) is composed of a waterproof coiled material plate, and the bridge deck layer (2) is carbon fiber cloth.