Bridge expansion joint replacement construction device

Abstract

The application relates to the technical field of bridge expansion joints, and discloses a replacement construction device for a bridge expansion joint, which comprises an expansion joint steel plate, the expansion joint steel plate is composed of an expansion joint steel plate one and an expansion joint steel plate two, the outer walls of the ends, away from each other, of the expansion joint steel plate one and the expansion joint steel plate two are uniformly distributed with a plurality of anchoring steel bars at equal intervals, the inside of the expansion joint steel plate one and the expansion joint steel plate two is provided with a special-shaped reserved groove, a special-shaped steel beam is detachably arranged in the special-shaped reserved groove, and the bottom of the expansion joint steel plate one and the expansion joint steel plate two is fixed with a compression support for supporting the special-shaped steel beam. The application forms a three-dimensional anchoring system through the anchoring steel bars and reinforcing elbows and reinforcing plates, so that the expansion joint steel plate one and the expansion joint steel plate two are firmly combined with the bridge structure; the special-shaped steel beam is accurately matched with the special-shaped reserved groove, the positioning groove and the reinforcing side beam and the positioning block, and the stable support is provided by matching the compression support. The load at the joint is effectively dispersed by the pressure-bearing steel plate, and the structure transverse stability is enhanced by the supporting beam.

Description

Technical Field

[0001] This application relates to the field of bridge expansion joint technology, and in particular to a replacement construction device for bridge expansion joints. Background Technology

[0002] Bridge expansion joints, as key components for regulating the thermal expansion and contraction of bridge structures and buffering the impact of vehicle loads, are constantly subjected to repeated vehicle traffic, rainwater erosion, and temperature changes, making them highly susceptible to damage and anchorage failure. Traditional expansion joint replacement construction often uses ordinary steel plates connected to simple anchoring steel bars. Uneven stress distribution at the joints between the steel plates makes them prone to deformation and breakage under vehicle loads, leading to premature failure of the expansion joint. Furthermore, insufficient connection strength between the anchoring steel bars and the main bridge structure often results in loosening and detachment of the steel bars from the concrete, making it difficult to ensure the long-term stability of the expansion joint.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0004] To address the problem that traditional expansion joint replacement construction often uses ordinary steel plates connected with simple anchor bars, resulting in uneven stress at the joints between the steel plates, which easily leads to deformation and breakage under vehicle loads and premature failure of the expansion joint, this application provides a bridge expansion joint replacement construction device.

[0005] The replacement construction device for bridge expansion joints provided in this application adopts the following technical solution:

[0006] A bridge expansion joint replacement construction device includes an expansion joint steel plate, which is composed of an expansion joint steel plate one and an expansion joint steel plate two. A plurality of anchoring steel bars are evenly distributed on the outer walls of the opposite ends of the expansion joint steel plates one and two. An irregularly shaped pre-reserved groove is provided inside the expansion joint steel plate one and the expansion joint steel plate two, and an irregularly shaped steel beam is detachably installed within the irregularly shaped pre-reserved groove. A clamping support for supporting the irregularly shaped steel beam is fixed to the bottom of the expansion joint steel plate one and the expansion joint steel plate two.

[0007] Preferably, one end of the anchoring steel bar has an integral structure with a reinforcing elbow, and the reinforcing elbow is welded to the outer wall of both the first expansion joint steel plate and the second expansion joint steel plate.

[0008] Preferably, a butt joint is provided between the first expansion joint steel plate and the second expansion joint steel plate, and a set of pressure-bearing steel plates are welded to the outer wall of the butt joint.

[0009] Preferably, the inner walls of the adjacent ends of the expansion joint steel plate one and the expansion joint steel plate two are integrally provided with support beams.

[0010] Preferably, both ends of the top of the irregular steel beam are integrally fixed with reinforcing side beams that are adapted to the irregular reserved grooves, the bottom end of the irregular steel beam is welded with a positioning block, and the upper middle part of the clamping support is provided with a positioning groove that is adapted to the positioning block.

[0011] Preferably, the outer walls of the opposite ends of the expansion joint steel plate one and the expansion joint steel plate two are each welded with a reinforcing plate, and the reinforcing plate is located inside the anchoring reinforcement.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] This application utilizes a three-dimensional anchoring system formed by anchoring reinforcing bars, strengthening elbows, and reinforcing plates to ensure a firm bond between the expansion joint steel plates one and two and the bridge structure. The irregularly shaped steel beams, with their reinforced side beams, positioning blocks, and precisely matched pre-drilled grooves and positioning slots, along with compression supports, provide stable support. The bearing steel plates effectively distribute the load at the joints, while the supporting beams enhance the lateral stability of the structure. The coordinated operation of all components not only ensures precise and efficient installation of the expansion joints but also significantly improves their impact resistance and deformation resistance, reduces the impact of vehicle loads and environmental factors, extends the service life of the bridge expansion joints, and builds a reliable defense for the safe operation of the bridge. Attached Figure Description

[0014] Figure 1 This is a front view of a bridge expansion joint replacement construction device according to an embodiment of the application.

[0015] Figure 2 This is an exploded view of a bridge expansion joint replacement construction device according to an embodiment of the application.

[0016] Figure 3 This is a structural schematic diagram of the irregular steel beam in the application embodiment.

[0017] Explanation of reference numerals in the attached drawings: 1. Expansion joint steel plate one; 2. Expansion joint steel plate two; 3. Anchoring steel bar; 4. Bearing steel plate; 5. Butt joint; 6. Irregularly shaped reserved groove; 7. Support beam; 8. Reinforced elbow; 9. Pressing support; 10. Positioning groove; 11. Irregularly shaped steel beam; 12. Reinforced edge beam; 13. Positioning block; 14. Reinforcing plate. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0019] This application discloses a construction device for replacing bridge expansion joints. (Refer to...) Figure 1The system includes expansion joint steel plates, which consist of expansion joint steel plate 1 and expansion joint steel plate 2. Several anchoring steel bars 3 are evenly distributed on the outer walls of the opposite ends of expansion joint steel plates 1 and 2. One end of each anchoring steel bar 3 has an integrally formed reinforcing elbow 8, which is welded to the outer walls of both expansion joint steel plates 1 and 2. A reinforcing plate 14 is welded to the outer walls of the opposite ends of both expansion joint steel plates 1 and 2, located inside the anchoring steel bars 3. The anchoring steel bars 3, in conjunction with the reinforcing elbow 8, penetrate deep into the bridge concrete and are welded to the expansion joint steel plates 1 and 2, forming a reliable mechanical anchorage. The reinforcing plate 14 further enhances the connection strength between the anchoring steel bars 3 and the steel plates, ensuring a tight bond between the expansion joint steel plate and the bridge structure, effectively resisting displacement risks caused by vehicle loads and environmental factors.

[0020] like Figures 2-3 As shown, a butt joint 5 is provided between expansion joint steel plate 1 and expansion joint steel plate 2. A set of pressure-bearing steel plates 4 are welded to the outer wall of the butt joint 5. Both expansion joint steel plate 1 and expansion joint steel plate 2 have irregularly shaped pre-reserved grooves 6 inside. Irregularly shaped steel beams 11 are detachably installed within the irregularly shaped pre-reserved grooves 6. Compression supports 9 for supporting the irregularly shaped steel beams 11 are fixed to the bottom of both expansion joint steel plate 1 and expansion joint steel plate 2. The reinforcing edge beam 12 at the top of the irregularly shaped steel beam 11 is precisely fitted with the irregularly shaped pre-reserved groove 6, enabling rapid positioning and stable installation of the steel beam.

[0021] In this application, the inner walls of the expansion joint steel plate 1 and the expansion joint steel plate 2, which are close to each other, are integrally structured with support beams 7. The top two ends of the irregular steel beam 11 are integrally fixed with reinforcing side beams 12 that are adapted to the irregular pre-reserved grooves 6. A positioning block 13 is welded to the bottom end of the irregular steel beam 11, and a positioning groove 10 adapted to the positioning block 13 is opened in the upper middle part of the clamping support 9. The bottom positioning block 13 cooperates with the positioning groove 10 of the clamping support 9 to constrain the position of the steel beam from both the top and bottom ends. At the same time, the clamping support 9 provides continuous support force, ensuring the stability of the irregular steel beam 11 under dynamic loads.

[0022] The implementation principle of the bridge expansion joint replacement construction device in this application embodiment is as follows:

[0023] During the replacement of bridge expansion joints, expansion joint steel plate 1 and expansion joint steel plate 2 are first placed at their designated installation positions. Using anchoring steel bars 3 and their end-mounted reinforcing elbows 8, expansion joint steel plates 1 and 2 are connected to the bridge structure. The reinforcing elbows 8 are welded to both the expansion joint steel plates and the bridge structure. The anchoring steel bars 3 penetrate deep into the bridge concrete, providing anchoring, while the reinforcing plate 14 further enhances the stability of the connection between the anchoring steel bars 3 and the expansion joint steel plates, ensuring a firm bond between the expansion joint steel plates and the bridge structure.

[0024] Next, the irregularly shaped steel beam 11 is installed into the irregularly shaped pre-reserved groove 6 inside the expansion joint steel plate 1 and expansion joint steel plate 2. The reinforcing side beam 12 at the top of the irregularly shaped steel beam 11 is adapted to the irregularly shaped pre-reserved groove 6, enabling the irregularly shaped steel beam 11 to be accurately positioned and stably installed. At the same time, the positioning block 13 at the bottom of the irregularly shaped steel beam 11 is embedded in the positioning groove 10 on the clamping support 9, further fixing the position of the irregularly shaped steel beam 11. The clamping support 9 supports the irregularly shaped steel beam 11 from the bottom, ensuring the stability of the irregularly shaped steel beam 11 when bearing load.

[0025] The bearing steel plate 4 welded at the butt joint 5 between expansion joint steel plate 1 and expansion joint steel plate 2 enhances the load-bearing capacity of the expansion joint joint, disperses the pressure generated by vehicle traffic and other loads, and prevents damage to the joint due to excessive stress. The support beam 7 is installed on the inner wall of the adjacent ends of the expansion joint steel plates, providing additional structural support and enhancing the overall structural strength. This ensures that the expansion joint remains stable during bridge expansion and contraction, effectively resisting vehicle impacts and environmental influences, thus facilitating the replacement and installation of bridge expansion joints and guaranteeing their normal use and the safety of the bridge structure.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0029] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction device for replacing bridge expansion joints, comprising an expansion joint steel plate, characterized in that: The expansion joint steel plate is composed of expansion joint steel plate one (1) and expansion joint steel plate two (2). There are several anchoring steel bars (3) evenly distributed on the outer wall of the opposite ends of expansion joint steel plate one (1) and expansion joint steel plate two (2). The interior of expansion joint steel plate one (1) and expansion joint steel plate two (2) is provided with irregular reserved grooves (6). Irregular steel beams (11) are detachably provided in the irregular reserved grooves (6). The bottom of expansion joint steel plate one (1) and expansion joint steel plate two (2) is fixed with pressing supports (9) to support the irregular steel beams (11).

2. The bridge expansion joint replacement construction device according to claim 1, characterized in that: One end of the anchoring steel bar (3) is integrally provided with a reinforcing elbow (8), and the reinforcing elbow (8) is welded to the outer wall of the expansion joint steel plate one (1) and the expansion joint steel plate two (2).

3. The bridge expansion joint replacement construction device according to claim 1, characterized in that: A butt joint (5) is provided between the expansion joint steel plate one (1) and the expansion joint steel plate two (2), and a set of pressure-bearing steel plates (4) are welded to the outer wall of the butt joint (5).

4. The bridge expansion joint replacement construction device according to claim 1, characterized in that: The inner walls of the expansion joint steel plate one (1) and expansion joint steel plate two (2) that are close to each other are integrally structured with a support beam (7).

5. The bridge expansion joint replacement construction device according to claim 1, characterized in that: The top two ends of the irregular steel beam (11) are integrally fixed with reinforcing side beams (12) that are compatible with the irregular reserved groove (6). The bottom end of the irregular steel beam (11) is welded with a positioning block (13). The upper middle part of the pressing support (9) is provided with a positioning groove (10) that is compatible with the positioning block (13).

6. The bridge expansion joint replacement construction device according to claim 1, characterized in that: The outer walls of the expansion joint steel plate one (1) and expansion joint steel plate two (2) are both welded with reinforcing plates (14) at their opposite ends. The reinforcing plates (14) are located inside the anchoring steel bars (3).

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