A modular composite bridge deck structure

Abstract

This utility model discloses a modular combined structure for the upper and lower decks of a bridge, relating to the field of bridge structure technology. It includes an upper bridge seat and a lower bridge seat. The bottom end of the upper bridge seat is provided with an U-shaped slot, and the lower bridge seat is provided with T-shaped support columns. The top end of the T-shaped support column is inserted into the U-shaped slot. A steel support assembly is provided between two adjacent T-shaped support columns. The top end of the steel support assembly is connected between the two adjacent U-shaped slots, and the bottom end of the steel support assembly is connected between the two adjacent T-shaped support columns. The overall structure of this utility model enables modular combined construction, reducing the complexity of bridge construction and improving construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bridge structure technology, specifically to a modular combined structure bridge deck upper and lower deck structure. Background Technology

[0002] In traditional bridge construction, the upper and lower deck structures are typically completed by on-site casting or assembly of large precast components. These methods not only require specific site conditions and have long construction periods, but also often necessitate significant manpower and machinery, leading to high costs and low efficiency. Furthermore, traditional structures often suffer from uneven stress distribution and poor seismic performance at joints, making them ill-suited to the demands of modern bridges for rapid construction, modular construction, and structural stability.

[0003] With the development of modular building technology, bridge engineering is gradually transforming towards prefabrication and assembly. However, the modular bridge structures currently on the market still have problems such as complex connection methods, high assembly precision requirements, and difficulties in on-site adjustments. In particular, there is a lack of a solution that can both facilitate rapid installation and ensure the overall structural stability in terms of the connection and support between the upper and lower bridge decks.

[0004] Therefore, it is necessary to provide a modular combined structure bridge deck structure that is structurally reasonable, easy to install, has good stability, and is suitable for modular construction. Utility Model Content

[0005] The main purpose of this utility model is to provide a modular combined structure for the upper and lower decks of a bridge to solve the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A modular composite bridge deck structure includes an upper bridge seat and a lower bridge seat. The bottom of the upper bridge seat is provided with an U-shaped slot, and the lower bridge seat is provided with a T-shaped support column. The top of the T-shaped support column is inserted into the U-shaped slot. A steel support assembly is provided between two adjacent T-shaped support columns. The top of the steel support assembly is connected between the two adjacent U-shaped slots, and the bottom of the steel support assembly is connected between the two adjacent T-shaped support columns.

[0007] Furthermore, the upper bridge seat includes an upper base plate, which includes multiple upper bridge panels. The interior of each upper bridge panel is provided with a steel mesh, and the ends of the steel mesh extend out of the upper bridge panel to form connecting ribs. After the connecting ribs of two adjacent upper bridge panels overlap each other, concrete is poured to form the upper base plate. The bottom end of the upper base plate is connected to a slot plate, and two slot plates cooperate with the upper base plate to form the U-shaped slot. The slot plate is provided with steel bars, and the steel mesh is fixedly connected to the steel bars.

[0008] Furthermore, a protective baffle is provided at the top of the upper substrate.

[0009] Furthermore, the steel support assembly includes an upper steel crossbeam and a lower steel crossbeam. The side wall of the slot plate is provided with an upper slot hole that matches the upper steel crossbeam. The upper steel crossbeam is connected between two adjacent U-shaped slots through the upper slot hole. The side wall of the T-shaped support column is provided with a lower slot hole that matches the lower steel crossbeam. The lower steel crossbeam is connected between two adjacent T-shaped support columns through the lower slot hole. The upper and lower steel crossbeams corresponding to each other are connected by a steel connecting assembly.

[0010] Furthermore, the steel connection assembly includes an upper steel seat and a lower steel seat. The upper steel seat is fixedly connected to the middle position of the upper steel beam, and a lower steel seat is fixedly connected to each end of the lower steel beam. The upper steel seat is connected to the two lower steel seats respectively through steel plates to form a triangular support structure.

[0011] Furthermore, a fixing steel component is fixedly connected to the end of the upper steel beam, and a pre-embedded bolt is embedded around the upper slot. The fixing steel component is provided with a round hole for the pre-embedded bolt to pass through, and the fixing steel component is fixedly connected to the pre-embedded bolt by a nut.

[0012] Furthermore, a fixing steel component is fixedly connected to the end of the lower steel beam, and a pre-embedded bolt is pre-embedded on the periphery of the lower slot. The fixing steel component is provided with a round hole for the pre-embedded bolt to pass through, and the fixing steel component is fixedly connected to the pre-embedded bolt by a nut.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By using the interlocking connection between the upper bridge abutment and the T-shaped support column, as well as the lateral connection of the steel support components, the bridge structure can be quickly assembled, which significantly reduces the complexity and intensity of on-site construction and improves construction efficiency.

[0014] The bridge adopts an interlocking method of U-shaped slots and T-shaped support columns, combined with the horizontal and vertical connections of steel support components, to form a multi-force system, which effectively improves the overall stiffness and seismic performance of the bridge.

[0015] The upper bridge abutment is formed by casting a whole after multiple precast bridge panels are connected by connecting bars, which enhances the integrity of the bridge deck structure and the uniformity of stress; the steel support components are connected to the fixed steel parts by pre-embedded bolts, which ensures the firmness of the node connection.

[0016] The structure uses standardized, prefabricated components, which facilitates transportation, storage, and on-site adjustments. It also facilitates later maintenance and partial replacement, reduces on-site wet work and the use of large hoisting equipment, lowers construction costs, and shortens the construction period. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the upper and lower deck structures of a modular combined bridge according to the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of part A.

[0019] Among them, 1-upper bridge seat; 11-upper base plate; 111-upper bridge panel; 112-steel mesh; 12-slot plate; 121-steel reinforcement; 13-protective baffle; 2-lower bridge seat; 3-U-shaped slot; 4-T-shaped support column; 5-steel support assembly; 51-upper steel crossbeam; 52-lower steel crossbeam; 53-steel connecting assembly; 531-upper steel seat; 532-lower steel seat; 533-steel plate. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] Combination Figures 1-2 This utility model provides a modular combined structure for the upper and lower decks of a bridge, including an upper bridge seat 1 and a lower bridge seat 2. The bottom end of the upper bridge seat 1 is provided with an U-shaped slot 3, and the lower bridge seat 2 is provided with a T-shaped support column 4. The top end of the T-shaped support column 4 is inserted into the U-shaped slot 3. A steel support assembly 5 is provided between two adjacent T-shaped support columns 4. The top end of the steel support assembly 5 is connected between two adjacent U-shaped slots 3, and the bottom end of the steel support assembly 5 is connected between two adjacent T-shaped support columns 4.

[0023] The plug-in connection between the upper bridge seat 1 and the T-shaped support column 4 facilitates the modular construction of the bridge, and the steel support components further improve the structural stability between the T-shaped support column 4 and the upper bridge seat 1, making construction convenient while maintaining good bridge stability.

[0024] The upper bridge base 1 includes an upper base plate 11, which includes multiple upper bridge panels 111. A steel mesh 112 is provided inside each upper bridge panel 111. The ends of the steel mesh 112 extend out of the upper bridge panel 111 to form connecting ribs. The connecting ribs of two adjacent upper bridge panels 111 overlap and are then poured with concrete to form the upper base plate 11. A slot plate 12 is connected to the bottom of the upper base plate 11, and a protective baffle 13 is provided at the top of the upper base plate 11. Two slot plates 12 cooperate with the upper base plate 11 to form the U-shaped slot 3. A steel bar 121 is provided inside the slot plate 12. The steel mesh 112 is fixedly connected to the steel bar 121. The fixed connection can be achieved by binding or welding, making the connection between the slot plate 12 and the upper base plate 11 more stable and increasing the overall strength.

[0025] By splicing multiple upper bridge panels 111 and pouring concrete, the upper base plate 11 can be cast as a whole during construction. The connecting bars improve the load-bearing performance of the upper base plate 11 at the splicing point. The upper bridge panels 111 can be hoisted by a small crane, making construction more convenient.

[0026] The steel support assembly 5 includes an upper steel crossbeam 51 and a lower steel crossbeam 52. The side wall of the slot plate 12 is provided with an upper slot hole that matches the upper steel crossbeam 51. The upper steel crossbeam 51 is connected between two adjacent U-shaped slots 3 through the upper slot hole. The side wall of the T-shaped support column 4 is provided with a lower slot hole that matches the lower steel crossbeam 52. The lower steel crossbeam 52 is connected between two adjacent T-shaped support columns 4 through the lower slot hole. The upper steel crossbeam 51 and the lower steel crossbeam 52, which are corresponding to each other, are connected by a steel connecting assembly 53.

[0027] The steel connecting assembly 53 includes an upper steel seat 531 and a lower steel seat 532. The upper steel seat 531 is fixedly connected to the middle position of the upper steel beam 51, and a lower steel seat 532 is fixedly connected to each end of the lower steel beam 52. The upper steel seat 531 is connected to the two lower steel seats 532 respectively through steel plates 533 to form a triangular support structure.

[0028] A stable triangular support structure is formed by the upper steel seat 531, the lower steel seat 532 and the steel plate 533. At the same time, the upper steel beam 51 provides lateral support for the upper bridge seat 1 and the lower steel beam 52 provides lateral support for the T-shaped support column 4, which can achieve stable support in multiple directions.

[0029] The upper steel crossbeam 51 is fixedly connected to a fixing steel member at its end. Pre-embedded bolts are embedded around the periphery of the upper slot. The fixing steel member has a circular hole for the pre-embedded bolts to pass through. The fixing steel member is fixedly connected to the pre-embedded bolts by a nut. Similarly, the lower steel crossbeam 52 is fixedly connected to a fixing steel member at its end. Pre-embedded bolts are embedded around the periphery of the lower slot. The fixing steel member has a circular hole for the pre-embedded bolts to pass through. The fixing steel member is fixedly connected to the pre-embedded bolts by a nut. The pre-embedded bolts and nuts further secure the upper steel crossbeam 51 to the slot plate 12 and the lower steel crossbeam 52 to the T-shaped support column, thus improving the overall support of the steel support assembly 5 for the bridge.

[0030] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A modular composite bridge deck structure, characterized in that, The device includes an upper bridge seat and a lower bridge seat. The bottom of the upper bridge seat is provided with an i-shaped slot, and the lower bridge seat is provided with a T-shaped support column. The top of the T-shaped support column is inserted into the i-shaped slot. A steel support assembly is provided between two adjacent T-shaped support columns. The top of the steel support assembly is connected between two adjacent i-shaped slots, and the bottom of the steel support assembly is connected between two adjacent T-shaped support columns.

2. The modular composite bridge deck structure as described in claim 1, characterized in that, The upper bridge base includes an upper base plate, which includes multiple upper bridge panels. The interior of each upper bridge panel is provided with a steel mesh. The ends of the steel mesh extend out of the upper bridge panel to form connecting ribs. The connecting ribs of two adjacent upper bridge panels overlap each other and are then poured with concrete to form the upper base plate. The bottom end of the upper base plate is connected to a slot plate. Two slot plates cooperate with the upper base plate to form the U-shaped slot. The slot plate is provided with steel bars inside, and the steel mesh is fixedly connected to the steel bars.

3. The modular composite bridge deck structure as described in claim 2, characterized in that, A protective baffle is provided at the top of the upper substrate.

4. The modular composite bridge deck structure as described in claim 2, characterized in that, The steel support assembly includes an upper steel crossbeam and a lower steel crossbeam. The side wall of the slot plate is provided with an upper slot hole that matches the upper steel crossbeam. The upper steel crossbeam is connected between two adjacent U-shaped slots through the upper slot hole. The side wall of the T-shaped support column is provided with a lower slot hole that matches the lower steel crossbeam. The lower steel crossbeam is connected between two adjacent T-shaped support columns through the lower slot hole. The upper and lower steel crossbeams corresponding to each other are connected by a steel connecting assembly.

5. The modular composite bridge deck structure as described in claim 4, characterized in that, The steel connection assembly includes an upper steel seat and a lower steel seat. The upper steel seat is fixedly connected to the middle position of the upper steel beam, and a lower steel seat is fixedly connected to each end of the lower steel beam. The upper steel seat is connected to the two lower steel seats respectively through steel plates to form a triangular support structure.

6. The modular composite bridge deck structure as described in claim 4, characterized in that, The end of the upper steel beam is fixedly connected to a fixing steel component, and a pre-embedded bolt is embedded on the periphery of the upper slot. The fixing steel component is provided with a round hole for the pre-embedded bolt to pass through, and the fixing steel component is fixedly connected to the pre-embedded bolt by a nut.

7. The modular composite bridge deck structure as described in claim 4, characterized in that, The lower steel beam is fixedly connected to a fixing steel component at its end. An embedded bolt is pre-embedded on the periphery of the lower slot hole. The fixing steel component has a round hole for the embedded bolt to pass through. The fixing steel component is fixedly connected to the embedded bolt by a nut.

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