Combined bridge deck slab structure

Abstract

The utility model relates to the technical field of bridges, and discloses a combined bridge deck slab structure which comprises a pavement layer, a structural layer is arranged at the bottom of the pavement layer, a reinforcing mesh is installed in the structural layer, a steel top plate is arranged at the bottom of the structural layer, a compression-resistant assembly is arranged at the bottom of the steel top plate, and a middle steel plate is installed at the bottom of the compression-resistant assembly. A concrete layer is arranged at the bottom of the middle steel plate, a steel bottom plate is arranged at the bottom of the concrete layer, a shear assembly is arranged in the concrete layer, two longitudinal steel girders are arranged at the bottom of the steel bottom plate, the compression-resistant assembly comprises a steel bar truss, and the bottom of the steel bar truss is arranged at the bottom of the steel top plate. And the steel bar truss is wavy. According to the bridge deck structure, due to the unique shape of the wavy steel bar trusses, the structural advantages can be better exerted when the bridge deck structure bears pressure, the pressure is effectively dispersed, the compression resistance of the bridge deck structure is enhanced, and the bridge deck structure can adapt to different load working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge technical field especially relates to a combination bridge deck structure. BACKGROUND

[0002] The combination bridge deck structure is the bridge deck structure that two materials of steel and concrete are combined together.

[0003] In the prior art, the combination bridge deck structure is often difficult to effectively disperse pressure, resulting in poor compression resistance of the bridge deck structure, poor adaptability to different load conditions, and low efficiency of the existing structure in shear force transmission, which makes it difficult to ensure that different material components such as steel and concrete work together, and the interface slip problem is common, which greatly limits the improvement of the overall performance of the bridge deck structure.

[0004] In view of the above problems, a combination bridge deck structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a combination bridge deck structure, which aims to improve the problems in the prior art that the combination bridge deck structure is often difficult to effectively disperse pressure, resulting in poor compression resistance of the bridge deck structure, poor adaptability to different load conditions, and low efficiency of the existing structure in shear force transmission, which makes it difficult to ensure that different material components such as steel and concrete work together, and the interface slip problem is common, which greatly limits the improvement of the overall performance of the bridge deck structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a combination bridge deck structure, comprising a paving layer, the paving layer is provided with a structure layer at the bottom, the structure layer is internally provided with a reinforcing mesh, the structure layer is provided with a steel top plate at the bottom, the steel top plate is provided with a compression resistance assembly at the bottom, the compression resistance assembly is internally provided with a middle steel plate, the middle steel plate is provided with a concrete layer at the bottom, the concrete layer is provided with a steel bottom plate at the bottom, the concrete layer is internally provided with a shear force assembly, and the steel bottom plate is provided with two longitudinal steel main beams at the bottom.

[0007] The compression resistance assembly comprises a reinforcing bar truss, the reinforcing bar truss is arranged at the bottom of the steel top plate, the reinforcing bar truss is in a wave shape, and the reinforcing bar truss is arranged at the top of the middle steel plate.

[0008] Further description of the above technical scheme:

[0009] The shear force assembly comprises a plurality of shear force connecting pieces, and the shear force connecting pieces are arranged in the concrete layer.

[0010] As a further description of the above technical solution:

[0011] The bottom of the shear connector is fixedly connected to the top of the steel bottom plate.

[0012] As a further description of the above technical solution:

[0013] The top of the upper shear connector is fixedly connected to the bottom of the middle steel plate.

[0014] As a further description of the above technical solution:

[0015] The upper shear connector is distributed equidistantly along the bottom of the middle steel plate.

[0016] As a further description of the above technical solution:

[0017] The lower shear connector is distributed equidistantly along the top of the steel bottom plate.

[0018] As a further description of the above technical solution:

[0019] The longitudinal steel girder is in a U-shaped form.

[0020] As a further description of the above technical solution:

[0021] The shear connector is in a dumbbell shape.

[0022] The utility model has the following beneficial effects:

[0023] 1、The utility model discloses a wave-shaped steel bar truss as a compression-resistant component, which has a unique shape and can better play structural advantages when bearing pressure, effectively disperses pressure and enhances the compression resistance of the bridge deck structure, and can adapt to different load conditions.

[0024] 2、The utility model discloses that the dumbbell-shaped shear connector is equidistantly distributed between the concrete layer and the middle steel plate and the steel bottom plate, which can efficiently transfer shear force, ensure the collaborative stress between different material components such as steel and concrete, avoid interface slip and other problems and further improve the overall performance of the bridge deck structure. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A perspective view of a combined bridge deck structure is provided for the utility model;

[0026] Figure 2 A structural schematic view of a steel bar mesh of a combined bridge deck structure is provided for the utility model;

[0027] Figure 3 A Figure 2 An enlarged view of the middle A.

[0028] Legend:

[0029] 1. Longitudinal steel girder; 2. Steel bottom plate; 3. Concrete layer; 4. Shear connector; 5. Middle steel plate; 6. Steel bar truss; 7. Steel top plate; 8. Structural layer; 9. Steel bar mesh; 10. Paving layer. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Referring to Figure 1 - Figure 3 An embodiment provided by the present application: a combined bridge deck structure, comprising a paving layer 10, the bottom of the paving layer 10 is provided with a structural layer 8, the inside of the structural layer 8 is installed with a steel bar mesh 9, the bottom of the structural layer 8 is provided with a steel top plate 7, the bottom of the steel top plate 7 is provided with a compression-resistant assembly, the bottom of the compression-resistant assembly is installed with a middle steel plate 5, the bottom of the middle steel plate 5 is provided with a concrete layer 3, the bottom of the concrete layer 3 is provided with a steel bottom plate 2, the inside of the concrete layer 3 is provided with a shear assembly, and the bottom of the steel bottom plate 2 is provided with two longitudinal steel girders 1.

[0032] The compression-resistant assembly comprises a steel bar truss 6, the bottom of the steel bar truss 6 is arranged at the bottom of the steel top plate 7, the steel bar truss 6 is in a wave shape, and the bottom of the steel bar truss 6 is arranged at the top of the middle steel plate 5.

[0033] Specifically, the paving layer 10 is used to directly bear the vehicle load and external action, and provide a driving surface, the structural layer 8 is used to enhance the strength of the bridge deck structure, and improve the bearing capacity in cooperation with the steel bar mesh 9, the steel bar mesh 9 is used to enhance the tensile strength and integrity of the structural layer 8, the steel top plate 7 is used to transmit the load and work cooperatively with the compression-resistant assembly, the steel bar truss 6 is used as the compression-resistant assembly, disperses and bears the pressure, connects the steel top plate 7 and the middle steel plate 5, the middle steel plate 5 is used to transmit the load, connects the compression-resistant assembly and the concrete layer 3, the concrete layer 3 is used to bear and transmit the load, cooperates with the steel bottom plate 2 and the shear assembly, the steel bottom plate 2 is used to transmit the load to the longitudinal steel girder 1 and cooperates with the concrete layer 3 to bear the force, the shear assembly is used to ensure the effective transmission of shear force between the concrete layer 3 and the middle steel plate 5 and the steel bottom plate 2, so that the components work cooperatively, and the longitudinal steel girder 1 is used to support the bridge deck structure, bear and transmit the load to the lower structure such as a pier.

[0034] Referring to Figure 1 - Figure 3The shear assembly comprises a plurality of shear connectors 4 arranged inside the concrete layer 3.

[0035] Specifically, the plurality of shear connectors 4 in the shear assembly are arranged inside the concrete layer 3, for transmitting shear forces between the concrete layer 3 and the steel bottom plate 2 and the middle steel plate 5, ensuring that the components of different materials work together, avoiding relative displacement between the components due to uneven stress, enhancing the integrity and stability of the composite bridge deck structure, and enabling it to better withstand external forces such as vehicle loads.

[0036] Referring to Figure 1 Figure 3 The bottom of the lower shear connector 4 is fixedly connected to the top of the steel bottom plate 2, and the top of the upper shear connector 4 is fixedly connected to the bottom of the middle steel plate 5. The upper shear connectors 4 are distributed equidistantly along the bottom of the middle steel plate 5, and the lower shear connectors 4 are distributed equidistantly along the top of the steel bottom plate 2. The longitudinal steel girder 1 is in the shape of a U, and the shear connectors 4 are in the shape of dumbbells.

[0037] Specifically, the bottom of the lower shear connector 4 is fixedly connected to the top of the steel bottom plate 2, and the top of the upper shear connector 4 is fixedly connected to the bottom of the middle steel plate 5. The upper shear connectors 4 are distributed equidistantly along the bottom of the middle steel plate 5, and the lower shear connectors 4 are distributed equidistantly along the top of the steel bottom plate 2. The longitudinal steel girder 1 is in the shape of a U, and the shear connectors 4 are in the shape of dumbbells.

[0038] Working principle: When the composite bridge deck structure is under load, the paving layer 10 first contacts the vehicle load and transmits it to the underlying structural layer 8. The steel reinforcement mesh 9 inside the structural layer 8 enhances its load-bearing capacity and further transmits the load to the steel top plate 7.

[0039] The compression-resistant assembly composed of the wavy steel reinforcement truss 6 arranged below the steel top plate 7 can effectively disperse and withstand pressure, further transmitting the load to the middle steel plate 5, thanks to its unique shape and structural characteristics.

[0040] The middle steel plate 5 transmits the load to the concrete layer 3, and the plurality of dumbbell-shaped shear connectors 4 arranged inside the concrete layer 3 play a key role. The upper ends of these shear connectors 4 are fixedly connected to the bottom of the middle steel plate 5 and are distributed equidistantly, and the lower ends are fixedly connected to the top of the steel bottom plate 2 and are distributed equidistantly. They can effectively transmit the shear forces between the steel top plate 7, the middle steel plate 5, the concrete layer 3, and the steel bottom plate 2, ensuring that the components work together and that the entire bridge deck structure collectively withstands the load.

[0041] ​Finally, the load is transmitted to the bottom two longitudinal U-shaped longitudinal steel girder 1 through the steel bottom plate 2, and the load is transmitted to the lower structure such as the pier by the longitudinal steel girder 1, so as to realize the load bearing and transmission of the whole bridge deck structure.

[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A composite bridge deck structure comprising a pavement layer, characterised in that: The bottom of the pavement layer is provided with a structural layer, a reinforcing mesh is installed in the structural layer, the bottom of the structural layer is provided with a steel top plate, the bottom of the steel top plate is provided with a compression-resistant assembly, the bottom of the compression-resistant assembly is installed with a middle steel plate, the bottom of the middle steel plate is provided with a concrete layer, the bottom of the concrete layer is provided with a steel bottom plate, the concrete layer is internally provided with a shear assembly, and the bottom of the steel bottom plate is provided with two longitudinal steel main beams. The compression-resistant assembly comprises a reinforcing truss, the bottom of the reinforcing truss is arranged at the bottom of the steel top plate, the reinforcing truss is in a wave shape, and the bottom of the reinforcing truss is arranged at the top of the middle steel plate.

2. A composite deck structure as defined in claim 1 wherein: The shear assembly comprises a plurality of shear connectors, and the shear connectors are arranged in the concrete layer.

3. A composite deck structure as defined in claim 2 wherein: The bottom of the lower shear connector is fixedly connected to the top of the steel bottom plate.

4. A composite deck structure as defined in claim 2 wherein: The top of the upper shear connector is fixedly connected to the bottom of the middle steel plate.

5. A composite deck structure as defined in claim 2 wherein: The upper shear connectors are distributed equidistantly along the bottom of the middle steel plate.

6. A composite deck structure as defined in claim 2 wherein: The lower shear connectors are distributed equidistantly along the top of the steel bottom plate.

7. A composite deck structure as defined in claim 1 wherein: The longitudinal steel main beam is in a U shape.

8. A composite deck structure as defined in claim 2 wherein: The shear connector is in a dumbbell shape.

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