Bridge expansion joint auxiliary installation device

Abstract

The utility model belongs to bridge construction technical field, concretely relates to a bridge expansion joint auxiliary installation device, including stress working beam, adjusting screw subassembly, support plate subassembly and level gauge, stress working beam is set in the above of bridge expansion joint reserved slot transversely, stress working beam both ends are set on the bridge surface pavement layer of bridge reserved slot both sides, adjusting screw subassembly is connected with stress working beam, support plate subassembly is connected with adjusting screw subassembly, and level gauge is set on the surface of stress working beam, the auxiliary installation device passes through the synergies of stress working beam, adjusting screw subassembly, support plate subassembly and level gauge, has improved installation quality and efficiency significantly, has reduced labour intensity and safety risk, has brought the reduction of comprehensive cost and the promotion of bridge pavement long -term service performance more, has better economic benefit and practicality.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and specifically relates to an auxiliary installation device for bridge expansion joints. Background Technology

[0002] Bridge expansion joints are indispensable key components in bridge structures, primarily functioning to compensate for or absorb structural deformations caused by various factors. During long-term operation, bridges are subjected to a variety of complex environmental factors and loads, leading to deformations such as expansion, bending, and torsion. To ensure the normal functionality, driving comfort, and structural safety of the bridge, expansion joints must be installed.

[0003] Bridge expansion joints are typically located in the center of the road surface, flanked by existing road structures or adjacent bridge components. Limited working space hinders the deployment of large machinery, making installation highly reliant on manual labor and requiring precise manual operation, resulting in relatively low efficiency. Furthermore, the lack of specialized positioning or leveling devices forces operators to rely primarily on visual inspection and measurement, traditional methods that struggle to guarantee high precision. The expansion joints themselves are usually composed of heavy steel structures and rubber, making transportation, placement, and fine-tuning extremely difficult, requiring multiple people and significant time and effort. The dense anchoring steel bars beneath the expansion joints can easily cause jamming, further complicating adjustments. Additionally, the anchoring structure of the expansion joint requires precise alignment and welding with embedded parts in the bridge structure, demanding extremely high precision. Inaccurate alignment can lead to gaps or height differences between the expansion joint and the surrounding road surface, affecting driving comfort and safety. Uneven gaps also increase the impact of vehicles on the expansion joint, accelerating its damage. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, this utility model provides an auxiliary installation device for bridge expansion joints, which solves the problems of low installation efficiency, poor accuracy and difficulty in adjustment of existing expansion joints.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bridge expansion joint auxiliary installation device is provided, including a load-bearing working beam, an adjusting screw assembly, a support plate assembly, and a level; the load-bearing working beam is laterally arranged above the reserved groove of the bridge expansion joint, and the two ends of the load-bearing working beam are arranged on the bridge deck pavement layer on both sides of the reserved groove of the bridge.

[0007] The adjusting screw assembly includes at least a first adjusting screw, a second adjusting screw, and a third adjusting screw. The first adjusting screw and the second adjusting screw are disposed through both ends of the load-bearing working beam, and the third adjusting screw is disposed between the first adjusting screw and the second adjusting screw, and is disposed through the load-bearing working beam.

[0008] The support plate assembly includes at least a first longitudinal support plate, a second longitudinal support plate, and a transverse support plate. The first longitudinal support plate is connected to the lower end of the first adjusting screw and the upper part of the anchoring steel bar. The second longitudinal support plate is connected to the lower end of the second adjusting screw and the lower part of the anchoring steel bar. The transverse support plate is connected to the lower end of the third adjusting screw and the anchoring plate. The anchoring plate, the upper part of the anchoring steel bar, and the lower part of the anchoring steel bar are all set inside the reserved groove.

[0009] The level is set on the upper surface of the stressed working beam.

[0010] The beneficial effects of adopting the above technical solution are as follows: The load-bearing working beam in the auxiliary installation device is horizontally positioned above the reserved slot of the bridge expansion joint, with both ends positioned on the bridge deck pavement on both sides of the reserved slot. This provides stable support for the entire auxiliary installation device. Furthermore, the load-bearing working beam has a certain rigidity and strength, ensuring stability and safety during construction. The first, second, and third adjusting screws, which are installed through the load-bearing working beam, allow operators to adjust the height and level of the expansion joint by rotating the screws. This simple operation not only ensures adjustment accuracy and effectively improves installation efficiency but also meets different installation requirements. In addition, the multiple screws installed simultaneously help to distribute the load during construction, thereby ensuring construction safety and stability. The cooperation between the first longitudinal support plate, the second longitudinal support plate, and the transverse support plate, and the first adjusting screw, the second adjusting screw, and the third adjusting screw, respectively, improves the installation and positioning accuracy of the expansion joint body within the reserved groove. Simultaneously, the first and second longitudinal support plates are connected to the upper and lower parts of the anchoring reinforcement, respectively, while the transverse support plate is connected to the anchoring plate, ensuring stable support of the expansion joint body by the support plate assembly. The level instrument installed on the surface of the load-bearing working beam provides real-time and intuitive level indication, enabling construction personnel to accurately adjust the transverse and longitudinal levelness of the expansion joint. This facilitates timely adjustments by operators, thereby improving adjustment efficiency and accuracy.

[0011] This auxiliary installation device, through the coordinated work of the load-bearing working beam, adjusting screw assembly, support plate assembly, and level, can not only monitor the height and level of the expansion joint in real time, ensuring the installation accuracy of the expansion joint in the plane, but also reduce the reliance on operators, improve construction efficiency, and thus shorten the construction period.

[0012] Furthermore, the first adjusting screw, the second adjusting screw, and the third adjusting screw are respectively connected to the load-bearing working beam via the first fixing bolt; the first adjusting screw is connected to the first longitudinal support plate, and the second adjusting screw is connected to the second longitudinal support plate via the second fixing bolt; the third adjusting screw is connected to the transverse support plate via the third fixing bolt.

[0013] The beneficial effects of adopting the above technical solution are as follows: the bolt connection method not only provides stable support, but also facilitates installation and disassembly, which helps operators to quickly complete the assembly and debugging of auxiliary installation devices, improves construction efficiency, and effectively avoids the displacement of expansion joints caused by the self-weight of concrete and vibration during subsequent concrete pouring, thus fundamentally ensuring the installation quality and the final road surface flatness.

[0014] Furthermore, gaskets are provided between the first fixing bolt and the load-bearing working beam, between the second fixing bolt and the first longitudinal support plate and the second longitudinal support plate, and between the third fixing bolt and the transverse support plate.

[0015] The beneficial effects of adopting the above technical solution are as follows: the gasket can not only disperse pressure and avoid damage or deformation caused by excessive local pressure, but also help reduce the risk of bolt loosening, thereby ensuring connection stability and reliability.

[0016] Furthermore, the first longitudinal support plate, the second longitudinal support plate, and the transverse support plate are all provided with several mounting holes.

[0017] The beneficial effects of adopting the above technical solution are as follows: the first longitudinal support plate, the second longitudinal support plate, and the transverse support plate are all provided with several mounting holes. By selecting different mounting holes, the position of the support plate assembly can be adjusted. This not only adapts to different installation requirements but also helps operators to position the support plate assembly in the required position, ensuring that the expansion joint body is accurately aligned in the reserved groove. This helps to reduce errors during the installation process, improves installation accuracy, and avoids difficulties in later corrections caused by misalignment.

[0018] Furthermore, the third adjusting screw is installed inside the expansion joint side beam, the transverse support plate is installed at the lower end of the anchor plate, and the anchor plate is installed on both sides of the expansion joint side beam.

[0019] The beneficial effects of adopting the above technical solution are as follows: the transverse support plate is set below the anchor plate, which makes it easier for operators to adjust the position of the transverse support plate and thus accurately control the alignment accuracy of the expansion joint in the transverse direction, thereby improving installation efficiency and quality.

[0020] Furthermore, the lower and upper parts of the anchoring steel bars are connected to the anchoring plates on both sides of the expansion joint edge beam, respectively.

[0021] The beneficial effects of adopting the above technical solution are as follows: by connecting the lower part and the upper part of the anchoring steel bar to the anchoring plates on both sides of the expansion joint edge beam, the installation of the expansion joint can be accurately positioned, thereby helping to reduce installation errors and improve the installation quality and accuracy of the expansion joint.

[0022] Furthermore, the upper and lower parts of the anchoring steel bars are connected to the bridge abutment through reserved steel bars, and the bridge abutment is located below the bridge deck pavement layer.

[0023] The beneficial effects of adopting the above technical solution are: by connecting the anchoring steel bars and the reserved steel bars, the positioning accuracy between the expansion joint and the bridge abutment is ensured.

[0024] In summary, the beneficial effects of the bridge expansion joint auxiliary installation device provided by this utility model are as follows:

[0025] (1) The auxiliary installation device, through the synergistic effect of the load-bearing working beam, adjusting screw assembly, support plate assembly and level, not only significantly improves the installation quality and efficiency, reduces labor intensity and safety risks, but also brings about a reduction in overall cost and an improvement in the long-term service performance of the bridge pavement, thus having better economic benefits and practicality.

[0026] (2) The adjustment screw assembly of the auxiliary installation device includes a first adjustment screw, a second adjustment screw and a third adjustment screw, and the first adjustment screw, the second adjustment screw and the third adjustment screw are all set through the load-bearing working beam, which realizes the precise adjustment of the height and level of the expansion joint body, which is conducive to the operator to flexibly adjust the position of the expansion joint according to the construction needs. The operation is simple and the precision is high, which effectively improves the installation efficiency and quality.

[0027] (3) The support plate assembly in the auxiliary installation device, in conjunction with the adjusting screw assembly and the fine adjustment function of the bolt, enables the expansion joint body to achieve precise alignment at the centimeter or even millimeter level in the plane position within the reserved groove. This avoids the difficulty of subsequent correction caused by inaccurate alignment in the traditional method. Furthermore, the expansion joint after precise adjustment is firmly locked to the auxiliary device by the bolt, effectively preventing the displacement of the expansion joint caused by the self-weight of the concrete and vibration during the subsequent concrete pouring process. This fundamentally ensures the installation quality and the final road surface flatness.

[0028] (4) The level in this auxiliary installation device is embedded in the upper surface of the load-bearing working beam, which can monitor the horizontal state of the load-bearing working beam in real time and intuitively. It assists the operators in accurately adjusting the installation elevation and inclination of the expansion joint, effectively solving the problem of insufficient accuracy caused by relying on manual visual inspection and measurement in traditional installation methods. It improves the horizontality and verticality of the expansion joint installation, ensuring the smoothness of the bridge pavement and driving comfort. At the same time, the real-time feedback function of the level also enables the construction personnel to promptly detect and correct deviations in the installation process, improving construction efficiency and quality. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the auxiliary installation device for bridge expansion joints in this utility model;

[0030] Figure 2 This is a cross-sectional view of the bridge expansion joint and reserved groove in this utility model;

[0031] Figure 3 This is a top view of the auxiliary installation device for bridge expansion joints in this utility model;

[0032] Figure 4 This is a cross-sectional view of point A in the auxiliary installation device for bridge expansion joints of this utility model;

[0033] Figure 5 This is a cross-sectional view of section B of the auxiliary installation device for bridge expansion joints in this utility model;

[0034] The components are as follows: 1. Bridge deck pavement layer; 2. Bridge abutment; 3. Horizontal reinforcement; 4. Lower part of anchor reinforcement; 5. Anchor plate; 6. Reserved reinforcement; 7. Expansion joint side beam; 8. Upper part of anchor reinforcement; 9. Load-bearing I-beam; 10. First adjusting screw; 11. Third adjusting screw; 12. First fixing bolt; 13. Second fixing bolt; 14. Third fixing bolt; 15. Second adjusting screw; 16. First longitudinal support plate; 17. Transverse support plate; 18. Level; 19. Second longitudinal support plate. Detailed Implementation

[0035] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0036] like Figures 1-5 As shown, the auxiliary installation device for bridge expansion joints provided by this utility model includes a load-bearing working beam 9, an adjusting screw assembly, a support plate assembly, and a level 18. The load-bearing working beam 9 is horizontally positioned above the pre-reserved groove of the bridge expansion joint, with both ends of the load-bearing working beam 9 positioned on the bridge deck pavement layer 1 on both sides of the pre-reserved groove. The adjusting screw assembly is connected to the load-bearing working beam 9, the support plate assembly is connected to the adjusting screw assembly, and the level 18 is positioned on the surface of the load-bearing working beam 9. Through the synergistic effect of the load-bearing working beam 9, the adjusting screw assembly, the support plate assembly, and the level 18, this auxiliary installation device not only significantly improves installation quality and efficiency, reduces labor intensity and safety risks, but also brings about a reduction in overall costs and an improvement in the long-term service performance of the bridge pavement, resulting in better economic benefits and practicality.

[0037] like Figure 1 , Figure 4 and Figure 5As shown, the adjusting screw assembly includes at least a first adjusting screw 10, a second adjusting screw 15, and a third adjusting screw 11. The first adjusting screw 10 and the second adjusting screw 15 are disposed through both ends of the load-bearing working beam 9, and the third adjusting screw 11 is disposed between the first adjusting screw 10 and the second adjusting screw 15, and is disposed through the load-bearing working beam 9. By having the first adjusting screw 10, the second adjusting screw 15, and the third adjusting screw 11 all disposed through the load-bearing working beam 9, precise adjustment of the height and level of the expansion joint body is achieved. This allows operators to flexibly adjust the position of the expansion joint according to construction needs, and the operation is simple and highly accurate, effectively improving installation efficiency and quality.

[0038] like Figure 1 , Figure 4 and Figure 5 As shown, the support plate assembly includes at least a first longitudinal support plate 16, a second longitudinal support plate 19, and a transverse support plate 17. The inner ends of the first longitudinal support plate 16 and the second longitudinal support plate 19 are adjacent to the area where the horizontal reinforcing bar 3 is located. The first longitudinal support plate 16 is connected to the lower end of the first adjusting screw 10 and the upper part 8 of the anchoring reinforcing bar. The second longitudinal support plate 19 is connected to the lower end of the second adjusting screw 15 and the lower part 4 of the anchoring reinforcing bar. The transverse support plate 17 is connected to the lower end of the third adjusting screw 11 and the anchoring plate 5. The anchoring plate 5, the upper part 8 of the anchoring reinforcing bar, and the lower part 4 of the anchoring reinforcing bar are all set inside the reserved groove. In addition, the first longitudinal support plate 16 and the second longitudinal support plate 19 are connected to the lower end of the third adjusting screw 11 and the anchoring plate 17. Both the expansion joint 19 and the transverse support plate 17 are provided with several mounting holes; the support plate assembly includes a first longitudinal support plate 16, a second longitudinal support plate 19 and a transverse support plate 17. Through cooperation with the adjusting screw assembly, it achieves precise centering of the expansion joint body in the reserved groove. In addition, the position of the support plate assembly can be adjusted by selecting different mounting holes. This not only adapts to different installation requirements, but also makes it easier for operators to position the support plate assembly in the required position, ensuring that the expansion joint body is precisely centered in the reserved groove. This helps to reduce errors during the installation process, improves installation accuracy, and avoids difficulties in later corrections due to misalignment.

[0039] like Figure 1As shown, the first adjusting screw 10, the second adjusting screw 15, and the third adjusting screw 11 are connected to the load-bearing working beam 9 via the first fixing bolt 12; the first adjusting screw 10 is connected to the first longitudinal support plate 16, and the second adjusting screw 15 is connected to the second longitudinal support plate 19 via the second fixing bolt 13; the third adjusting screw 11 is connected to the transverse support plate 17 via the third fixing bolt 14. Gaskets are provided between the first fixing bolt 12 and the load-bearing working beam 9, between the second fixing bolt 13 and the first and second longitudinal support plates 16 and 19, and between the third fixing bolt 14 and the transverse support plate 17. The bolted connection method not only provides stable support but also facilitates installation and disassembly, allowing operators to quickly assemble and debug the auxiliary installation device, improving construction efficiency. Furthermore, it effectively avoids expansion joint displacement caused by the concrete's own weight and vibration during subsequent concrete pouring, fundamentally ensuring installation quality and the final road surface smoothness.

[0040] like Figure 1 and Figure 2 As shown, the third adjusting screw 11 is installed inside the expansion joint side beam 7, the transverse support plate 17 is installed at the lower end of the anchor plate 5, the anchor plate 5 is installed on both sides of the expansion joint side beam 7, the anchor plate 5 is connected to the lower part 4 and the upper part 8 of the anchor reinforcement respectively, and the upper part 8 and the lower part 4 of the anchor reinforcement are connected to the bridge abutment 2 through the reserved reinforcement 6 respectively. The bridge abutment 2 is installed below the bridge deck pavement layer 1; wherein the transverse support plate 17 is installed below the anchor plate 5, which makes it convenient for operators to adjust the position of the transverse support plate 17, thereby accurately controlling the alignment accuracy of the expansion joint in the transverse direction, so as to improve the installation efficiency and quality.

[0041] In summary, the bridge expansion joint auxiliary installation device provided by this utility model, through the synergistic effect of the load-bearing working beam 9, the adjusting screw assembly, the support plate assembly and the level 18, not only significantly improves the installation quality and efficiency, reduces labor intensity and safety risks, but also brings about a reduction in overall costs and an improvement in the long-term service performance of the bridge pavement, thus having better economic benefits and practicality.

Claims

1. An auxiliary installation device for bridge expansion joints, characterized in that: Includes a load-bearing working beam (9), an adjusting screw assembly, a support plate assembly, and a level (18); The load-bearing working beam (9) is arranged laterally above the reserved groove of the bridge expansion joint, and the two ends of the load-bearing working beam (9) are arranged on the bridge deck pavement layer (1) on both sides of the reserved groove of the bridge. The adjusting screw assembly includes at least a first adjusting screw (10), a second adjusting screw (15), and a third adjusting screw (11). The first adjusting screw (10) and the second adjusting screw (15) are disposed through both ends of the load-bearing working beam (9), and the third adjusting screw (11) is disposed between the first adjusting screw (10) and the second adjusting screw (15). The third adjusting screw (11) is disposed through the load-bearing working beam (9). The support plate assembly includes at least a first longitudinal support plate (16), a second longitudinal support plate (19), and a transverse support plate (17). The first longitudinal support plate (16) is connected to the lower end of the first adjusting screw (10) and the upper part (8) of the anchoring steel bar. The second longitudinal support plate (19) is connected to the lower end of the second adjusting screw (15) and the lower part (4) of the anchoring steel bar. The transverse support plate (17) is connected to the lower end of the third adjusting screw (11) and the anchor plate (5). The anchor plate (5), the upper part (8) of the anchoring steel bar, and the lower part (4) of the anchoring steel bar are all located inside the reserved groove. The level (18) is set on the upper surface of the stressed working beam (9).

2. The bridge expansion joint auxiliary installation device according to claim 1, characterized in that: The first adjusting screw (10), the second adjusting screw (15) and the third adjusting screw (11) are respectively connected to the load-bearing working beam (9) by the first fixing bolt (12); the first adjusting screw (10) is connected to the first longitudinal support plate (16) and the second adjusting screw (15) is connected to the second longitudinal support plate (19) by the second fixing bolt (13); the third adjusting screw (11) is connected to the transverse support plate (17) by the third fixing bolt (14).

3. The bridge expansion joint auxiliary installation device according to claim 2, characterized in that: Gaskets are provided between the first fixing bolt (12) and the load-bearing working beam (9), between the second fixing bolt (13) and the first longitudinal support plate (16) and the second longitudinal support plate (19), and between the third fixing bolt (14) and the transverse support plate (17).

4. The bridge expansion joint auxiliary installation device according to claim 1, characterized in that: The first longitudinal support plate (16), the second longitudinal support plate (19) and the transverse support plate (17) are each provided with a number of mounting holes.

5. The auxiliary installation device for bridge expansion joints according to claim 1, characterized in that: The third adjusting screw (11) is located inside the expansion joint side beam (7), the transverse support plate (17) is located at the lower end of the anchor plate (5), and the anchor plate (5) is located on both sides of the expansion joint side beam (7).

6. The auxiliary installation device for bridge expansion joints according to claim 1, characterized in that: The lower part (4) and upper part (8) of the anchoring steel bar are respectively connected to the anchoring plates (5) on both sides of the expansion joint side beam (7).

7. The bridge expansion joint auxiliary installation device according to claim 6, characterized in that: The upper part (8) and the lower part (4) of the anchoring steel bar are respectively connected to the bridge abutment (2) through the reserved steel bar (6), and the bridge abutment (2) is located below the bridge deck pavement layer (1).

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