Bridge double-seam type expansion joint device

Abstract

The utility model discloses a bridge double-seam type expansion joint device, and relates to the technical field of double-seam type expansion joints, in particular to a bridge double-seam type expansion joint device which comprises a bridge body, a pouring groove is formed in one side of the top of the bridge body, an inserting hole is formed in the top of the pouring groove, an L-shaped steel bar is inserted into the inserting hole, and a plurality of through holes are formed in the inserting hole. A first transverse reinforcing steel bar is welded to one side of the L-shaped reinforcing steel bar, the diameter of the first transverse reinforcing steel bar is 12 mm, a buffering edge beam is welded to one end of the L-shaped reinforcing steel bar, and a U-shaped reinforcing steel bar is fixedly installed on one side of the buffering edge beam. According to the double-seam type expansion joint device for the bridge, through the arrangement of the rubber strips and the buffer seats, the double-seam type expansion joint device for the bridge has the effects that transverse and vertical buffer damping force can be well provided, and the shock resistance is high, so that the effect of high stability is achieved, and the purpose of low damage rate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-seam type expansion joints, in particular to a double-seam type expansion joint device for a bridge. Background Art

[0002] A bridge refers to a structure built across rivers, lakes, and the sea to allow vehicles and pedestrians to pass smoothly. It can effectively save people's travel distance and allow people to travel on rivers, lakes, and the sea. At the same time, in order to adapt to the modern high-speed development of the transportation industry, bridges have become the main buildings across special terrains such as mountain streams and poor geology. Because the main body of the bridge is composed of concrete, it is easy for the bridge body to deform due to environmental climate and other reasons. To address this problem, when building a bridge, people will add bridge expansion joints at the connection between the bridge deck bodies to deal with the problem of bridge deformation. The expansion joints can freely expand and contract in two directions parallel and perpendicular to the axis of the bridge, and are firm and reliable.

[0003] Today's double-seam expansion joint devices on bridges have poor reset performance and seismic resistance, unsatisfactory shock absorption effects, poor stability, high damage rate, and require frequent replacement. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a double-seam expansion joint device for a bridge, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a double-seam expansion joint device for a bridge, comprising a bridge body, a pouring trough is provided on one side of the top of the bridge body, a plug-in hole is provided on the top of the pouring trough, an L-shaped steel bar is plugged into the inside of the plug-in hole, a first transverse steel bar is welded to one side of the L-shaped steel bar, the diameter of the first transverse steel bar is twelve millimeters, a buffer side beam is welded to one end of the L-shaped steel bar, a U-shaped steel bar is fixedly installed on one side of the buffer side beam, the other end of the U-shaped steel bar abuts against the inner bottom wall of the pouring trough, a second transverse steel bar is welded to one side of the U-shaped steel bar, a rubber strip is fixedly installed on one end of the bridge body, a support is fixedly installed on the top of the rubber strip, the support is made of polystyrene foam plastic, a drainage groove is provided on one side of the support, a buffer seat is provided on the top of the support, a expansion groove is provided on one side of the buffer seat, and one end of the buffer side beam is located inside the expansion groove.

[0008] Optionally, the diameter of the L-shaped steel bar is fifteen to eighteen millimeters, and the number of the L-shaped steel bars is several.

[0009] Optionally, a plurality of L-shaped steel bars are evenly distributed inside the pouring trough, and the spacing between each L-shaped steel bar is 200 mm.

[0010] Optionally, the diameter of the U-shaped steel bar is fifteen to eighteen millimeters, and the number of the U-shaped steel bars is several.

[0011] Optionally, a plurality of the U-shaped steel bars are evenly distributed in the middle of the spacing between the L-shaped steel bars, and the spacing between each U-shaped steel bar is 200 millimeters.

[0012] Optionally, a threaded hole is provided on the top of the buffer seat, a bolt is threadedly connected to the inside of the threaded hole, and the bottom of the bolt is threadedly connected to the inside of the support.

[0013] The utility model provides a double-seam expansion joint device for a bridge, which has the following beneficial effects:

[0014] The double-seam expansion joint device of the bridge, through the arrangement of the rubber strip and the buffer seat, enables the double-seam expansion joint device of the bridge to provide good lateral and vertical buffer shock absorption force and strong earthquake resistance. Through the coordinated arrangement of the bridge body, the pouring trough, the plug-in hole, the L-shaped steel bar, the first transverse steel bar, the buffer side beam, the U-shaped steel bar, the second transverse steel bar, the rubber strip, the support, the buffer seat, the expansion groove, the threaded hole, the bolt and the drainage groove, during use, a pouring trough can be first reserved on one side of the top of the bridge body, and the depth of the pouring trough can be not less than 15 centimeters. Then, a plug-in hole with a diameter matching the diameter of the L-shaped steel bar can be drilled on the inner bottom wall of the pouring trough by an electric drill. Then, the L-shaped steel bar is inserted into the inside of the plug-in hole in sequence, and then the first transverse steel bar is welded to the L-shaped steel bar. On one side of the reinforcement, and then place the U-shaped steel bar in the middle of each L-shaped steel bar in turn, weld the second transverse steel bar to the bottom of the U-shaped steel bar, and then weld the buffer side beam to the top of the U-shaped steel bar. At this time, it is necessary to pour C concrete inside the pouring trough, and then bond the rubber strip to one end of the bridge body, and then install the support on the top of the rubber strip, and then install the buffer seat at one end of the buffer side beam through the expansion slot. At this time, fix the bolt on the top of the support through the threaded hole. When the bridge body is vibrated, the buffer seat fluctuates up and down as a whole, and the rubber strip and the support can absorb part of the vibration, playing a supporting role while playing a shock-absorbing role, preventing the buffer side beam from directly contacting the buffer seat and causing damage, thereby playing a role of higher stability and achieving the purpose of a lower damage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model in cross section;

[0017] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 4 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0019] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0020] In the figure: 1. Bridge body; 2. Casting trough; 3. Plug-in hole; 4. L-shaped steel bar; 5. First transverse steel bar; 6. Buffer side beam; 7. U-shaped steel bar; 8. Second transverse steel bar; 9. Rubber strip; 10. Support; 11. Buffer seat; 12. Expansion slot; 13. Threaded hole; 14. Bolt; 15. Drainage trough. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example

[0023] See also Figures 1 to 5The utility model provides a technical solution: a double-seam expansion joint device for a bridge, comprising a bridge body 1, a pouring trough 2 is provided on one side of the top of the bridge body 1, a plug-in hole 3 is provided on the top of the pouring trough 2, an L-shaped steel bar 4 is plugged into the plug-in hole 3, the diameter of the L-shaped steel bar 4 is 15 to 18 mm, the number of the L-shaped steel bars 4 is several, the several L-shaped steel bars 4 are evenly distributed in the pouring trough 2, and the spacing between each L-shaped steel bar 4 is 200 mm, a first transverse steel bar 5 is welded to one side of the L-shaped steel bar 4, the diameter of the first transverse steel bar 5 is 12 mm, a buffer side beam 6 is welded to one end of the L-shaped steel bar 4, a U-shaped steel bar 7 is fixedly installed on one side of the buffer side beam 6, the diameter of the U-shaped steel bar 7 is 15 to 18 mm, the number of the U-shaped steel bars 7 is several, and the several The U-shaped steel bars 7 are evenly distributed in the middle of the spacing of the L-shaped steel bars 4, and the spacing of each U-shaped steel bar 7 is 200 mm. The other end of the U-shaped steel bar 7 abuts against the inner bottom wall of the casting trough 2. A second transverse steel bar 8 is welded to one side of the U-shaped steel bar 7. A rubber strip 9 is fixedly installed at one end of the bridge body 1, and a support 10 is fixedly installed on the top of the rubber strip 9. The material of the support 10 is polystyrene foam plastic. A drainage groove 15 is opened on one side of the top of the support 10, and a buffer seat 11 is provided on the top of the support 10. A telescopic groove 12 is opened on one side of the buffer seat 11. One end of the buffer side beam 6 is located inside the telescopic groove 12, and a threaded hole 13 is opened on the top of the buffer seat 11. The internal thread of the threaded hole 13 is connected with a bolt 14, and the bottom of the bolt 14 is threadedly connected to the inside of the support 10.

[0024] When in use, first reserve a pouring groove 2 on one side of the top of the bridge body 1, the depth of the pouring groove 2 is not less than 15 centimeters, then drill an insertion hole 3 with a diameter that matches the diameter of the L-shaped steel bar 4 on the inner bottom wall of the pouring groove 2 by an electric drill, then insert the L-shaped steel bar 4 into the inside of the insertion hole 3 in turn, then weld the first transverse steel bar 5 to one side of the L-shaped steel bar 4, then place the U-shaped steel bar 7 in the middle of each L-shaped steel bar 4 in turn, then weld the second transverse steel bar 8 to the bottom of the U-shaped steel bar 7, and then weld the buffer side beam 6 to the top of the U-shaped steel bar 7. At this time, C50 concrete needs to be poured on the pouring groove 2. The inside of the grouting groove 2 is then glued to one end of the bridge body 1 with the rubber strip 9, and then the support 10 is installed on the top of the rubber strip 9, and then the buffer seat 11 is installed on one end of the buffer side beam 6 through the telescopic groove 12. At this time, the bolt 14 is fixed to the top of the support 10 through the threaded hole 13. When the bridge body 1 is vibrated, the buffer seat 11 fluctuates up and down as a whole, and the rubber strip 9 and the support 10 can absorb part of the vibration, playing a supporting role while playing a shock-absorbing role, preventing the buffer side beam 6 from being damaged by direct contact with the buffer seat 11, thereby playing a role of higher stability and achieving the purpose of a lower damage rate.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-seam expansion joint device for a bridge, comprising a bridge body (1), characterized in that: A pouring trough (2) is provided on one side of the top of the bridge body (1), a plug hole (3) is provided on the top of the pouring trough (2), an L-shaped steel bar (4) is plugged into the plug hole (3), a first transverse steel bar (5) is welded to one side of the L-shaped steel bar (4), the diameter of the first transverse steel bar (5) is twelve millimeters, a buffer side beam (6) is welded to one end of the L-shaped steel bar (4), a U-shaped steel bar (7) is fixedly installed on one side of the buffer side beam (6), and the other end of the U-shaped steel bar (7) is abutted against the inner bottom wall of the pouring trough (2). A second transverse steel bar (8) is welded to one side of the U-shaped steel bar (7); a rubber strip (9) is fixedly mounted on one end of the bridge body (1); a support (10) is fixedly mounted on the top of the rubber strip (9); the support (10) is made of polystyrene foam plastic; a drainage groove (15) is provided on one side of the top of the support (10); a buffer seat (11) is provided on the top of the support (10); a telescopic groove (12) is provided on one side of the buffer seat (11); and one end of the buffer side beam (6) is located inside the telescopic groove (12).

2. A double-seam expansion joint device for bridges according to claim 1, characterized in that: The diameter of the L-shaped steel bar (4) is fifteen to eighteen millimeters, and the number of the L-shaped steel bars (4) is several.

3. A double-seam expansion joint device for bridges according to claim 2, characterized in that: A plurality of L-shaped steel bars (4) are evenly distributed inside the pouring trough (2), and the spacing between each L-shaped steel bar (4) is 200 millimeters.

4. A double-seam expansion joint device for a bridge according to claim 3, characterized in that: The diameter of the U-shaped steel bar (7) is fifteen to eighteen millimeters, and the number of the U-shaped steel bars (7) is several.

5. A double-seam expansion joint device for a bridge according to claim 4, characterized in that: The plurality of U-shaped steel bars (7) are evenly distributed in the middle of the spacing between the L-shaped steel bars (4), and the spacing between each U-shaped steel bar (7) is 200 millimeters.

6. A double-seam expansion joint device for a bridge according to claim 5, characterized in that: A threaded hole (13) is provided at the top of the buffer seat (11), a bolt (14) is threadedly connected inside the threaded hole (13), and the bottom of the bolt (14) is threadedly connected inside the support seat (10).

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