Anti-seismic bridge expansion joint device

Abstract

The utility model relates to the technical field of bridge expansion joints, and provides an anti-seismic bridge expansion joint device, which comprises a first beam body, a second beam body, a gap and an expansion joint mechanism, in the anti-seismic bridge expansion joint device, a rubber plate A is fixedly arranged in the gap, and a plurality of reinforcing rods are respectively and correspondingly welded with a plurality of connecting rods; concrete is poured into the mounting groove, when the first beam body and the second beam body are transversely stressed, the first beam body and the second beam body extrude each other and stretch the rubber plate A, and when the first beam body and the second beam body are vertically stressed, comb teeth on the comb plate A and comb teeth on the comb plate B are staggered and inclined under the action of the rubber plate B; by means of the technical scheme, the problems that in the prior art, the anti-seismic performance is poor, the structure of an expansion joint is prone to being damaged, the expansion joint breaks down, and driving safety is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion joints, and in particular to an earthquake-resistant bridge expansion joint device. Background Art

[0002] Expansion joints are structural joints set up to prevent cracks or damage to building components due to climate temperature changes (thermal expansion and contraction). To ensure the safety of personnel and vehicles, expansion joint devices need to be installed at the structural joints, such as the most common comb plate expansion joint device. The comb plate expansion joint device includes a first beam body and a second beam body located on both sides of the bridge expansion structural joint, and a movable tooth plate and a fixed tooth plate respectively arranged on the first beam body and the second beam body. The movable tooth plate is placed on the bridge expansion structural joint as a cross-seam plate, and the movable tooth plate and the fixed tooth plate are each provided with comb teeth at opposite ends that are spaced and staggered.

[0003] In the prior art, due to the influence of some external factors, such as earthquakes, the expansion joints will vibrate, which can easily damage the structure of ordinary expansion joints, leading to failure of the expansion joints, and further affecting driving safety.

[0004] For this purpose, an earthquake-resistant bridge expansion joint device is proposed. Utility Model Content

[0005] The utility model provides an anti-seismic bridge expansion joint device, which solves the problems in the related art that the anti-seismic performance is poor, the structure of the expansion joint is easily damaged, resulting in expansion joint failure and affecting driving safety.

[0006] The technical solution of the utility model is as follows:

[0007] An anti-seismic bridge expansion joint device comprises a first beam body, a second beam body and a gap, and further comprises:

[0008] An expansion joint mechanism, the expansion joint mechanism includes a comb plate A, a comb plate B and an anti-seismic component, the comb plate A and the comb plate B are respectively connected to the first beam body and the second beam body through a group of connecting components, the connecting component is connected to the anti-seismic component, the connecting component includes a reinforcing plate and a reinforcing rod, the anti-seismic component includes a rubber plate A and a rubber plate B, the rubber plate A is arranged inside the gap, and the two ends are respectively fixedly connected to the first beam body and the second beam body, and the rubber plate B is arranged at the top of the gap.

[0009] Preferably, a plurality of reinforcing plates are provided, and the plurality of reinforcing plates are respectively fixedly connected to the bottom of the comb plate A and the comb plate B, and the plurality of reinforcing plates respectively correspond to the comb teeth on the comb plate A and the comb plate B; a plurality of reinforcing rods are provided, and the plurality of reinforcing rods are arranged in a horizontal U shape, and the plurality of reinforcing rods respectively correspond to the plurality of reinforcing plates and are fixedly connected to the reinforcing plates.

[0010] Preferably, the first beam body and the second beam body are respectively provided with installation grooves for installing and placing the expansion joint mechanism, and the bottoms of the two installation grooves are respectively fixedly connected with connecting rods, and several of the connecting rods are respectively arranged in teams with several reinforcing rods and welded to the reinforcing rods.

[0011] Preferably, a protective plate is fixedly connected to the bottom of the comb plate B, and a sliding groove for the protective plate to slide is provided on the reinforcing plate arranged at the bottom of the comb plate A, and the length of the protective plate is greater than the length of the comb plate A and the comb plate B at the intersection of the comb teeth.

[0012] Preferably, baffles are fixedly connected to the reinforcing plates at positions corresponding to the roots of the comb teeth of the comb plates A and B, respectively, and the rubber plate B is arranged in the middle of the two baffles and fixedly connected to the first beam body, the second beam body and the rubber plate B.

[0013] Preferably, a guide groove for guiding flow is provided on the rubber plate B, and the direction of the guide groove on the rubber plate B avoids the comb teeth on the comb plate A and the comb plate B.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. In the utility model, after the comb teeth on the comb plates A and the comb plates B are staggered correspondingly, the rubber plate A is fixedly installed inside the gap, and then a plurality of reinforcing rods are welded correspondingly to a plurality of connecting rods, and then the inside of the installation groove is poured with concrete to connect and fix the comb plates A and the comb plates B to the first beam body and the second beam body, respectively. By setting the rubber plates A and the rubber plates B, when the first beam body and the second beam body are subjected to lateral force, the first beam body and the second beam body mutually squeeze and stretch the rubber plate A, so that the comb teeth on the comb plates A and the comb plates B are close to and away from each other, thereby avoiding damage such as cracks on the bridge. When the first beam body and the second beam body are subjected to vertical force, the comb teeth on the comb plates A and the comb plates B are staggered and tilted, so that the seismic resistance of the bridge is enhanced through the setting of the expansion joint mechanism, thereby achieving the purpose of extending the service life of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the utility model;

[0019] Figure 3 It is a partial cross-sectional view of the utility model;

[0020] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0021] In the figure: 1. first beam body; 2. second beam body; 3. gap; 4. expansion joint mechanism; 5. comb plate A; 6. comb plate B; 7. reinforcement plate; 8. reinforcement rod; 9. rubber plate A; 10. rubber plate B; 11. mounting groove; 12. connecting rod; 13. protective plate; 14. baffle; 15. guide groove. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1~Figure 4 As shown, this embodiment proposes an anti-seismic bridge expansion joint device, including a first beam body 1, a second beam body 2 and a gap 3, and also includes:

[0025] Expansion joint mechanism 4, the expansion joint mechanism 4 includes a comb plate A5, a comb plate B6 and an anti-seismic component, the comb plate A5 and the comb plate B6 are respectively connected to the first beam body 1 and the second beam body 2 through a group of connecting components, the connecting component is connected to the anti-seismic component, the connecting component includes a reinforcing plate 7 and a reinforcing rod 8, the anti-seismic component includes a rubber plate A9 and a rubber plate B10, the rubber plate A9 is arranged inside the gap 3, and the two ends are respectively fixedly connected to the first beam body 1 and the second beam body 2, and the rubber plate B10 is arranged at the top of the gap 3.

[0026] Preferably, a plurality of reinforcing plates 7 are provided, and the plurality of reinforcing plates 7 are respectively fixedly connected to the bottom of the comb tooth plate A5 and the comb tooth plate B6, and the plurality of reinforcing plates 7 respectively correspond to the comb teeth on the comb tooth plate A5 and the comb tooth plate B6, and a plurality of reinforcing rods 8 are provided, and the plurality of reinforcing rods 8 are arranged in a transverse U-shape, and the plurality of reinforcing rods 8 respectively correspond to the plurality of reinforcing plates 7 and are fixedly connected to the reinforcing plates 7. The purpose of such arrangement is to achieve the purpose of enhancing the strength and service life of the comb tooth plate A5 and the comb tooth plate B6 through the arrangement of the reinforcing plates 7 and the reinforcing rods 8.

[0027] Preferably, the first beam body 1 and the second beam body 2 are respectively provided with installation grooves 11 for installing and placing the expansion joint mechanism 4, and the bottoms of the two installation grooves 11 are respectively fixedly connected with connecting rods 12, and a plurality of connecting rods 12 are respectively arranged in teams with a plurality of reinforcing rods 8 and welded to the reinforcing rods 8. The purpose of such a setting is to achieve the purpose of strengthening the connection stability of the comb plate A5 and the comb plate B6 with the first beam body 1 and the second beam body 2 by welding the reinforcing rods 8 and the connecting rods 12.

[0028] Preferably, a protective plate 13 is fixedly connected to the bottom of the comb plate B6, and a slide groove for the protective plate 13 to slide is provided on the reinforcing plate 7 provided at the bottom of the comb plate A5, and the length of the protective plate 13 is greater than the length of the interlaced part of the comb teeth on the comb plate A5 and the comb plate B6. The purpose of this arrangement is to achieve the purpose of isolating the rubber plate B10 from the external space through the arrangement of the protective plate 13, so as to prevent the rubber plate B10 from being directly damaged by external influences.

[0029] Preferably, baffles 14 are fixedly connected to the corresponding positions of the comb teeth of the comb teeth plate A5 and the comb teeth plate B6 on the reinforcing plates 7, and the rubber plate B10 is arranged in the middle of the two baffles 14 and is fixedly connected to the first beam body 1, the second beam body 2 and the rubber plate B10. The purpose of this arrangement is to achieve the purpose of strengthening the protection of the rubber plate B10 through the arrangement of the baffles 14.

[0030] In this embodiment, after the comb teeth on the comb plates A5 and the comb plates B6 are staggered correspondingly, the rubber plate A9 is fixedly installed inside the gap 3, and then a plurality of reinforcing rods 8 are respectively welded to a plurality of connecting rods 12 correspondingly, and then the inside of the installation groove 11 is poured with concrete to connect and fix the comb plates A5 and B6 to the first beam body 1 and the second beam body 2 respectively. By setting the rubber plate A9 and the rubber plate B10, when the first beam body 1 and the second beam body 2 are subjected to lateral force, the first beam body 1 and the second beam body 2 mutually squeeze and stretch the rubber plate A9, so that the comb teeth on the comb plates A5 and the comb plates B6 are close to and away from each other, thereby avoiding damage such as cracks on the bridge. When the first beam body 1 and the second beam body 2 are subjected to vertical force, the comb teeth on the comb plates A5 and the comb plates B6 are staggered and tilted, so that the seismic resistance of the bridge is enhanced through the setting of the expansion joint mechanism 4, thereby achieving the purpose of extending the service life of the bridge.

[0031] Example 2

[0032] like Figure 1~Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a guide groove 15 for guiding flow is provided on the rubber plate B10, and the direction of the guide groove 15 on the rubber plate B10 avoids the comb teeth on the comb plate A5 and the comb plate B6.

[0033] In this embodiment, the diversion groove 15 is provided to guide the rainwater flowing through the protection plate 13 so that it can be discharged quickly.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-seismic bridge expansion joint device, comprising a first beam body (1), a second beam body (2) and a gap (3), characterized in that: Also includes: An expansion joint mechanism (4), the expansion joint mechanism (4) comprising a comb plate A (5), a comb plate B (6) and an anti-seismic component, the comb plate A (5) and the comb plate B (6) being connected to a first beam body (1) and a second beam body (2) respectively through a set of connecting components, the connecting components being connected to the anti-seismic component, the connecting components comprising a reinforcing plate (7) and a reinforcing rod (8), the anti-seismic component comprising a rubber plate A (9) and a rubber plate B (10), the rubber plate A (9) being arranged inside a gap (3), and having two ends respectively fixedly connected to the first beam body (1) and the second beam body (2), the rubber plate B (10) being arranged at the top of the gap (3).

2. The seismic bridge expansion joint device according to claim 1, characterized in that: A plurality of reinforcing plates (7) are provided, and the plurality of reinforcing plates (7) are respectively fixedly connected to the bottom of the comb tooth plate A (5) and the comb tooth plate B (6), and the plurality of reinforcing plates (7) respectively correspond to the comb teeth on the comb tooth plate A (5) and the comb tooth plate B (6). A plurality of reinforcing rods (8) are provided, and the plurality of reinforcing rods (8) are arranged in a transverse U-shape, and the plurality of reinforcing rods (8) respectively correspond to the plurality of reinforcing plates (7) and are fixedly connected to the reinforcing plates (7).

3. The seismic bridge expansion joint device according to claim 1, characterized in that: The first beam body (1) and the second beam body (2) are respectively provided with installation grooves (11) for installing and placing the expansion joint mechanism (4), and the bottoms of the two installation grooves (11) are respectively fixedly connected with connecting rods (12), and a plurality of the connecting rods (12) are respectively arranged in groups with a plurality of reinforcing rods (8) and are welded to the reinforcing rods (8).

4. The seismic bridge expansion joint device according to claim 1, characterized in that: A protective plate (13) is fixedly connected to the bottom of the comb plate B (6); a slide groove for the protective plate (13) to slide is provided on the reinforcing plate (7) arranged at the bottom of the comb plate A (5); the length of the protective plate (13) is greater than the length of the intersecting portion of the comb teeth on the comb plate A (5) and the comb plate B (6).

5. The seismic bridge expansion joint device according to claim 1, characterized in that: Baffles (14) are fixedly connected to the plurality of reinforcing plates (7) at positions corresponding to the roots of the comb teeth of the comb tooth plates A (5) and the comb tooth plates B (6), respectively. The rubber plate B (10) is arranged in the middle of the two baffles (14) and is fixedly connected to the first beam body (1), the second beam body (2) and the rubber plate B (10).

6. The seismic bridge expansion joint device according to claim 1, characterized in that: The rubber plate B (10) is provided with a flow guiding groove (15) for guiding flow, and the direction of the flow guiding groove (15) on the rubber plate B (10) avoids the comb teeth on the comb plate A (5) and the comb plate B (6).

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