Bridge concrete shrinkage joint assembling structure

Abstract

The utility model discloses a bridge concrete contraction joint assembling structure which comprises a middle beam, first grooves are formed in the two sides of the middle beam, rubber sealing strips are installed in the first grooves, a cross beam is fixed below the middle beam, a limiting mechanism is arranged below the cross beam, edge beams are arranged on the two sides of the middle beam, and the edge beams are connected with the rubber sealing strips. An anchoring rib is fixed to one side of the edge beam, and a protection mechanism is arranged above the edge beam. According to the bridge concrete shrinkage joint assembling structure, through cooperative use of the protection mechanism, the protection plate can directly block external physical impact such as vibration and splashing stones possibly generated in the vehicle running process, so that the impact is prevented from directly acting on the rubber sealing strip, the risk of abrasion and damage of the rubber sealing strip is reduced, and the service life of the bridge concrete shrinkage joint assembling structure is prolonged. Meanwhile, when the contraction joint is used, the guide block is arranged to drive the protection plate to slide in the fixed seat, so that the fixed seat and the edge beam can keep synchronous movement.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge concrete shrinkage joints, and specifically relates to an assembled structure for bridge concrete shrinkage joints. Background Technique

[0002] Bridge shrinkage joints usually refer to bridge expansion joints, which are special structures used to connect different parts of a bridge structure. It allows the bridge to expand and contract under the influence of temperature changes and structural deformations, thereby reducing the stress on the bridge structure. The design standards for concrete bridge expansion joints include basic requirements such as temperature deformation compensation, horizontal displacement capacity, vertical deformation capacity, and waterproof capacity. The assembled structure of bridge concrete shrinkage joints is a complex but crucial part, which ensures the stability and safety of the bridge under different conditions such as temperature, load, and earthquake.

[0003] However, the upper part of the existing bridge shrinkage joint cannot be protected, and stones are likely to fall above the rubber sealing strip, resulting in damage to the rubber sealing strip. Therefore, this application provides an assembled structure for bridge concrete shrinkage joints to meet the requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide an assembled structure for bridge concrete shrinkage joints to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An assembled structure for bridge concrete shrinkage joints, including a middle beam, first grooves are opened on both sides of the middle beam, a rubber sealing strip is installed inside the first grooves, a cross beam is fixed below the middle beam, a limiting mechanism is arranged below the cross beam, side beams are arranged on both sides of the middle beam, anchor bars are fixed on one side of the side beams, and a protection mechanism is arranged above the side beams;

[0006] The protection mechanism includes a fixed seat, a guide groove, a protection plate, guide blocks, and water seepage holes. The fixed seat is fixed above the side beam, a guide groove is opened inside the fixed seat, a protection plate is installed inside the guide groove, guide blocks are fixed on both sides of the protection plate, and water seepage holes are opened above the protection plate.

[0007] Preferably, the limiting mechanism includes a slider, a control box, a sliding support, and a rubber support. The slider is fixed below the cross beam, control boxes are arranged at both ends of the cross beam, a sliding support is fixed below the inner part of the control box, and a sliding support is fixed above the inner part of the control box.

[0008] Preferably, the control box forms a sliding structure with the cross beam through the sliding support, and the shape of the sliding support conforms to that of the slider.

[0009] Preferably, the protection plate forms a sliding structure with the fixed seat through guide blocks, and the guide blocks are symmetrically arranged with respect to the central axis of the protection plate.

[0010] Preferably, the water seepage holes are evenly distributed above the protection plate, and the water seepage holes are symmetrically arranged with respect to the central axis of the protection plate.

[0011] Preferably, a second groove is formed on one side of the side beam, and the second groove has the same shape as the first groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this bridge concrete shrinkage joint assembly structure, through the coordinated use of the protection mechanism, the protection plate can directly block external physical impacts, such as vibrations and flying stones that may occur during vehicle driving, thereby preventing these impacts from directly acting on the rubber sealing strip, reducing the risk of wear and damage to the rubber sealing strip. At the same time, when the shrinkage joint is in use, the guide blocks can drive the protection plate to slide in the fixed seat, enabling the fixed seat and the side beam to move synchronously.

[0014] 2. For this bridge concrete shrinkage joint assembly structure, through the setting of the limiting mechanism, the sliding support and the rubber support ensure that the shrinkage joint maintains stable telescopic performance during the displacement process of the bridge caused by external factors such as temperature changes, load effects, or earthquakes, avoiding adverse effects on the bridge structure due to excessive or insufficient displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of the limiting mechanism of the present utility model;

[0017] Figure 3 is a schematic diagram of the structure of the protection mechanism of the present utility model;

[0018] Figure 4 is a schematic diagram of the structure of the protection plate of the present utility model.

[0019] In the figure: 1, middle beam; 2, first groove; 3, rubber sealing strip; 4, cross beam; 5, limiting mechanism; 501, slider; 502, control box; 503, sliding support; 504, rubber support; 6, side beam; 7, anchor bar; 8, protection mechanism; 801, fixed seat; 802, guide groove; 803, protection plate; 804, guide block; 805, water seepage hole; 9, second groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a bridge concrete shrinkage joint assembly structure, including a middle beam 1. First grooves 2 are opened on both sides of the middle beam 1. A rubber sealing strip 3 is installed inside the first grooves 2. A cross beam 4 is fixed below the middle beam 1. A limiting mechanism 5 is arranged below the cross beam 4. The limiting mechanism 5 includes a slider 501, a control box 502, a sliding support 503 and a rubber support 504. The slider 501 is fixed below the cross beam 4. Control boxes 502 are arranged at both ends of the cross beam 4. A sliding support 503 is fixed below the inner part of the control box 502. A sliding support 503 is fixed above the inner part of the control box 502, avoiding adverse effects on the bridge structure caused by excessive or too small displacement and improving the shrinkage stability. The control box 502 and the cross beam 4 form a sliding structure through the sliding support 503. The shape of the sliding support 503 conforms to that of the slider 501. Through the sliding support 503 and the rubber support 504, it is ensured that the shrinkage joint maintains stable telescopic performance during the displacement of the bridge caused by external factors such as temperature change, load action or earthquake. Side beams 6 are arranged on both sides of the middle beam 1. An anchor bar 7 is fixed on one side of the side beam 6. A protection mechanism 8 is arranged above the side beam 6. A second groove 9 is opened on one side of the side beam 6. The shape of the second groove 9 is the same as that of the first groove 2. The rubber sealing strip 3 expands and contracts to adapt to the deformation of the bridge caused by the change of temperature environment;

[0022] Please refer to Figures 3 - 4, the protection mechanism 8 includes a fixed seat 801, a guide groove 802, a protection plate 803, a guide block 804 and a water seepage hole 805. The fixed seat 801 is fixed above the side beam 6. A guide groove 802 is provided inside the fixed seat 801. A protection plate 803 is installed inside the guide groove 802. The protection plate 803 forms a sliding structure with the fixed seat 801 through the guide block 804. The guide blocks 804 are symmetrically arranged with respect to the central axis of the protection plate 803. The protection plate 803 can directly block external physical impacts, such as vibrations and flying stones that may occur during vehicle driving, so as to prevent these impacts from directly acting on the rubber sealing strip 3 and reducing the risk of wear and damage to the rubber sealing strip 3. Guide blocks 804 are fixed on both sides of the protection plate 803. Water seepage holes 805 are provided above the protection plate 803. The water seepage holes 805 are evenly distributed above the protection plate 803. The water seepage holes 805 are symmetrically arranged with respect to the central axis of the protection plate 803. The water seepage holes 805 enable rainwater to fall onto the groove above the rubber sealing strip 3 through the protection plate 803, thereby discharging the rainwater.

[0023] Working principle: When using this assembled structure for bridge concrete shrinkage joints, first, the anchor bars 7 are pre-embedded between the bridges. When the bridge shrinkage joints are in normal use, the two side beams 6 move. The rubber sealing strip 3 expands and contracts to adapt to the deformation of the bridge caused by temperature changes in the environment. At the same time, through the sliding support 503 and the rubber support 504, it is ensured that the shrinkage joint maintains stable expansion and contraction performance during the displacement of the bridge caused by external factors such as temperature changes, load effects, or earthquakes. Finally, the protection plate 803 can directly block external physical impacts, such as vibrations and flying stones that may occur during vehicle driving, so as to prevent these impacts from directly acting on the rubber sealing strip 3 and reducing the risk of wear and damage to the rubber sealing strip 3. Just like this, the use process of this assembled structure for bridge concrete shrinkage joints is completed.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge concrete shrinkage joint assembly structure, including a middle beam (1), characterized in that: On both sides of the central beam (1), a first groove (2) is provided, and a rubber sealing strip (3) is installed inside the first groove (2). A cross beam (4) is fixed below the central beam (1), a limiting mechanism (5) is arranged below the cross beam (4), side beams (6) are arranged on both sides of the central beam (1), an anchor bar (7) is fixed on one side of the side beam (6), and a protection mechanism (8) is arranged above the side beam (6). The protection mechanism (8) includes a fixed seat (801), a guide groove (802), a protection plate (803), a guide block (804), and a water seepage hole (805). The fixed seat (801) is fixed above the side beam (6), a guide groove (802) is provided inside the fixed seat (801), a protection plate (803) is installed inside the guide groove (802), guide blocks (804) are fixed on both sides of the protection plate (803), and water seepage holes (805) are provided above the protection plate (803).

2. The assembled structure of the concrete shrinkage joint of a bridge according to claim 1, wherein, The limiting mechanism (5) includes a slider (501), a control box (502), a sliding support (503), and a rubber support (504). The slider (501) is fixed below the cross beam (4), control boxes (502) are arranged at both ends of the cross beam (4), a sliding support (503) is fixed below the interior of the control box (502), and a sliding support (503) is fixed above the interior of the control box (502).

3. The assembled structure of the bridge concrete shrinkage joint according to claim 2, characterized in that, The control box (502) forms a sliding structure with the cross beam (4) through the sliding support (503), and the sliding support (503) conforms to the shape of the slider (501).

4. A bridge concrete shrinkage joint assembly structure according to claim 1, characterized in that, The protection plate (803) forms a sliding structure with the fixed seat (801) through the guide block (804), and the guide blocks (804) are symmetrically arranged with respect to the central axis of the protection plate (803).

5. A bridge concrete shrinkage joint assembly structure according to claim 1, characterized in that, The water seepage holes (805) are evenly distributed above the protection plate (803), and the water seepage holes (805) are symmetrically arranged with respect to the central axis of the protection plate (803).

6. The assembled structure of the concrete shrinkage joint of a bridge according to claim 1, characterized in that, A second groove (9) is provided on one side of the side beam (6), and the second groove (9) has the same shape as the first groove (2).

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