Bridge hollow slab bending-resistant reinforcing structure

Abstract

The utility model relates to the technical field of bridge hollow slabs, and discloses a bridge hollow slab anti-bending reinforcing structure which comprises a hollow bridge slab, concrete is arranged on the outer wall of the hollow bridge slab, a plurality of first threaded grooves are formed in the two sides of the outer wall of the hollow bridge slab, and second threaded grooves are formed in the upper end of the concrete and the outer walls of the two sides of the concrete. The hollow slab is filled with the concrete, the bearing capacity and rigidity of the whole structure can be remarkably improved, the hollow slab can bear traffic loads and other external force, the expansion bolts can provide strong connecting force between the concrete and the bridge hollow slab, when the bolts are fastened, the expansion sleeves are unfolded in the concrete, and therefore the hollow slab is prevented from being damaged. And tight mechanical anchoring is formed, so that the shear strength and the tensile strength of the connecting part are enhanced, the bridge hollow slabs are connected through the fixing steel plates and the prestressed bolts, and extra bending strength can be provided.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge hollow slabs, in particular to a bridge hollow slab bending-resistant reinforcement structure. Background Art

[0002] Hollow core bridge slab is a common precast concrete component widely used in various types of bridge construction. The main feature of this slab is that it has a hollow chamber inside. This structural design helps to reduce the overall weight while maintaining sufficient structural strength and rigidity.

[0003] However, traditional hollow slab reinforcement methods for bridges may require complex construction processes and long construction times, which will increase project costs and may cause significant interference to the surrounding environment. Traditional hollow slabs for bridges may exhibit insufficient stiffness when resisting bending and torsional forces, which may lead to large deformations under the influence of traffic loads and external environment.

[0004] Therefore, those skilled in the art provide a bridge hollow slab bending reinforcement structure to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a bridge hollow slab bending reinforcement structure, in which steel grooves are provided on both the upper steel plate and the lower steel plate. These steel grooves match the tooth grooves of the hollow plate, and the upper steel plate and the lower steel plate are firmly connected to the bridge hollow plate by a clamping method to form an integral force system, thereby enhancing the stability of the structure and preventing slippage or falling off. Moreover, through the precise matching of the steel grooves and the tooth grooves, an integral force system can be formed, thereby enhancing the overall stability of the bridge hollow plate and reducing deformation and displacement under load.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bridge hollow slab bending reinforcement structure, comprising a hollow bridge slab, the outer wall of the hollow bridge slab is provided with concrete, a plurality of first thread grooves are provided on both sides of the outer wall of the hollow bridge slab, a second thread groove is provided on the upper end of the concrete and the outer walls on both sides, the second thread groove and the interior of the first thread groove are both threadedly connected with expansion bolts, an upper steel plate is provided on the upper end of the hollow bridge slab, and a lower steel plate is provided on the lower end of the hollow bridge slab;

[0008] The upper steel plate and the lower steel plate are each provided with a plurality of steel grooves at one end near the center, the upper end and the lower end of the hollow bridge plate are each provided with a plurality of tooth grooves, the outer walls of the steel grooves are snap-fitted with the outer walls of the tooth grooves, and a fixed steel plate is provided at the lower part of the outer wall of the hollow bridge plate close to the concrete side, and the fixed steel plate and the inner wall of the hollow bridge plate are both threadedly connected with prestressed bolts.

[0009] Through the above technical solution, by filling the hollow slab with concrete, the bearing capacity and rigidity of the overall structure can be significantly improved, making it more able to withstand traffic loads and other external forces. The expansion bolts can provide a strong connection force between the concrete and the hollow slab of the bridge. When the bolts are tightened, the expansion sleeves are expanded in the concrete to form a tight mechanical anchorage, thereby enhancing the shear and tensile strength of the connection. By connecting the hollow slabs of the bridge with fixed steel plates and prestressed bolts, additional bending strength can be provided, and the prestressed bolts further enhance the stability of the connection through tensioning, thereby improving the bearing capacity of the overall structure.

[0010] The utility model has the following beneficial effects:

[0011] 1. The utility model proposes a bridge hollow slab bending reinforcement structure. Compared with the existing bridge hollow slab reinforcement structure, the bridge hollow slab reinforcement structure can significantly improve the bearing capacity and rigidity of the overall structure by filling concrete in the hollow slab, so that it can better withstand traffic loads and other external forces. The expansion bolts can provide a strong connection force between the concrete and the bridge hollow slab. When the bolts are tightened, the expansion sleeves are expanded in the concrete to form a tight mechanical anchorage, thereby enhancing the shear and tensile strength of the connection parts. The hollow slabs of the bridge are connected by fixing steel plates and prestressed bolts, which can provide additional bending strength. The prestressed bolts further enhance the stability of the connection through tensioning, thereby improving the bearing capacity of the overall structure.

[0012] 2. The utility model proposes a bridge hollow slab bending reinforcement structure. Compared with the existing bridge hollow slab reinforcement structure, the bridge hollow slab reinforcement structure is provided with steel grooves on both the upper and lower steel plates. These steel grooves match the tooth grooves of the hollow slab, and the upper and lower steel plates are firmly connected to the bridge hollow slab by clamping to form an integral force system, thereby enhancing the stability of the structure and preventing slippage or falling off. Moreover, through the precise matching of the steel grooves and the tooth grooves, an integral force system can be formed, thereby enhancing the overall stability of the bridge hollow slab and reducing deformation and displacement under load.

[0013] 3. The utility model proposes a bridge hollow slab bending-resistant reinforcement structure. Compared with the existing bridge hollow slab reinforcement structure, the bridge hollow slab reinforcement structure is reasonable and compact, has a high degree of automation, a wide range of applications, and strong practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric diagram of a bridge hollow slab bending reinforcement structure proposed by the utility model;

[0015] Figure 2 An exploded diagram of a bridge hollow slab bending reinforcement structure proposed by the utility model;

[0016] Figure 3 This is a partial exploded diagram of a bridge hollow slab bending reinforcement structure proposed by the utility model;

[0017] Figure 4 This is a partial axonometric diagram of a bridge hollow slab bending reinforcement structure proposed by the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the local structure of a bridge hollow slab bending reinforcement structure.

[0019] Legend:

[0020] 1. Hollow bridge slab; 2. First thread groove; 3. Tooth groove; 4. Concrete; 5. Upper steel plate; 6. Lower steel plate; 7. Steel groove; 8. Expansion bolt; 9. Second thread groove; 10. Fixed steel plate; 11. Prestressed bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-5 The utility model provides an embodiment: a bridge hollow slab bending reinforcement structure, including a hollow bridge slab 1, the outer wall of the hollow bridge slab 1 is provided with concrete 4, a plurality of first thread grooves 2 are opened on both sides of the outer wall of the hollow bridge slab 1, and second thread grooves 9 are opened on the upper end of the concrete 4 and the outer walls on both sides.

[0023] By filling the hollow slab with concrete 4, the bearing capacity and rigidity of the overall structure can be significantly improved, making it more able to withstand traffic loads and other external forces. The expansion bolts 8 can provide a strong connection force between the concrete 4 and the hollow slab of the bridge. When the bolts are tightened, the expansion sleeves are expanded in the concrete 4 to form a tight mechanical anchor, thereby enhancing the shear and tensile strength of the connection. By connecting the hollow slabs of the bridge with fixed steel plates 10 and prestressed bolts 11, additional bending strength can be provided, and the prestressed bolts 11 further enhance the stability of the connection through tensioning, thereby improving the bearing capacity of the overall structure.

[0024] The second thread groove 9 and the first thread groove 2 are both threadedly connected with expansion bolts 8. An upper steel plate 5 is provided at the upper end of the hollow bridge slab 1, and a lower steel plate 6 is provided at the lower end of the hollow bridge slab. The upper steel plate 5 and the lower steel plate 6 are respectively provided at the upper and lower ends of the hollow slab to cooperate with the expansion bolts 8 to form a stable fixing system, thereby improving the stability of the overall structure. A plurality of steel grooves 7 are provided at one end of the upper steel plate 5 and the lower steel plate 6 near the center, and a plurality of tooth grooves 3 are provided at the upper and lower ends of the hollow bridge slab 1. The clamping connection method between the steel grooves 7 and the tooth grooves 3 is relatively simple, thereby reducing the complexity of on-site construction and speeding up the construction. The construction progress is improved, and the requirements for the skills of the construction workers are also reduced. The outer walls of the steel grooves 7 are snap-fitted with the outer walls of the tooth grooves 3. The snap-fit ​​design can effectively prevent the relative slippage between the steel plate and the hollow plate, ensure the stability of the connection, and thus reduce the displacement of the structure under load. The lower part of the outer wall of the hollow bridge slab 1 close to the concrete 4 is provided with a fixed steel plate 10. The inner walls of the fixed steel plate 10 and the hollow bridge slab 1 are threadedly connected with prestressed bolts 11. The prestressed bolts 11 apply prestress to the fixed steel plate 10 and the hollow bridge slab 1 through tensioning, thereby enhancing the bending and shear strength of the entire structure.

[0025] Working principle: The hollow slab reinforcement structure of the bridge can significantly improve the bearing capacity and rigidity of the overall structure by filling the hollow slab with concrete 4, making it more able to withstand traffic loads and other external forces. The expansion bolts 8 can provide a strong connection force between the concrete 4 and the hollow slab of the bridge. When the bolts are tightened, the expansion sleeves unfold in the concrete 4 to form a tight mechanical anchorage, thereby enhancing the shear and tensile strength of the connection. The hollow slabs of the bridge are connected by fixing the steel plates 10 and the prestressed bolts 11, which can provide additional bending strength. The prestressed bolts 11 further enhance the stability of the connection through tensioning, thereby improving the bearing capacity of the overall structure. Steel grooves 7 are provided on the upper steel plate 5 and the lower steel plate 6. These steel grooves 7 cooperate with the tooth grooves 3 of the hollow slab, and the upper steel plate 5 and the lower steel plate 6 are firmly connected to the hollow slab of the bridge by clamping, forming an overall force system, which enhances the stability of the structure and prevents slippage or falling off. Moreover, through the precise cooperation of the steel grooves 7 and the tooth grooves 3, an overall force system can be formed, thereby enhancing the overall stability of the hollow slab of the bridge and reducing deformation and displacement under load.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is 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 bridge hollow slab bending reinforcement structure, comprising a hollow bridge slab (1), characterized in that: The outer wall of the hollow bridge slab (1) is provided with concrete (4), a plurality of first thread grooves (2) are provided on both sides of the outer wall of the hollow bridge slab (1), a second thread groove (9) is provided on the upper end and the outer walls on both sides of the concrete (4), the second thread groove (9) and the interior of the first thread groove (2) are both threadedly connected with expansion bolts (8), an upper steel plate (5) is provided at the upper end of the hollow bridge slab (1), and a lower steel plate (6) is provided at the lower end of the hollow bridge slab (1); The upper steel plate (5) and the lower steel plate (6) are each provided with a plurality of steel grooves (7) at one end near the center, the upper end and the lower end of the hollow bridge plate (1) are each provided with a plurality of tooth grooves (3), the outer walls of the steel grooves (7) are snap-fitted with the outer walls of the tooth grooves (3), the lower part of the outer wall of the hollow bridge plate (1) close to the concrete (4) is provided with a fixed steel plate (10), and the inner wall of the fixed steel plate (10) and the hollow bridge plate (1) are both threadedly connected with prestressed bolts (11).

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