Joint device for bridge widening

Abstract

A joint device for bridge widening comprises an elastic waterstop and two edge sealing plates, each edge sealing plate comprises a bottom plate and a side plate, the bottom plates are perpendicularly connected to one sides of the bottom ends of the side plates, the side plates of the two edge sealing plates are vertically arranged on the two sides of the upper end of a new bridge joint and the two sides of the upper end of an old bridge joint respectively, and the bottoms of the two bottom plates are connected to the upper surfaces of top plates of main beams of a new bridge and an old bridge respectively. The two side plates are horizontally arranged, the opposite sides of the two side plates are respectively provided with a horizontally-arranged built-in groove, the two sides of the elastic water-stop belt are provided with protruding parts capable of being embedded in the built-in grooves, the elastic water-stop belt is filled between the two side plates, the protruding parts on the two sides of the elastic water-stop belt are arranged in the built-in grooves in the side plates, and the tops of the side plates are flush with the top face of a new bridge deck pavement and the top face of an old bridge deck pavement. According to the bridge deck width splicing seam protection device, the top of a splicing seam is flat, when a vehicle passes by, the vehicle is free of feeling and mute, and the splicing seam is attractive; the abutted seam is extremely narrow relative to the wheel width, and when the abutted seam is located below the wheel trajectory, the wheel cannot slip in rainy days; the rubber waterstop can effectively prevent rainwater from leaking to the space under the bridge along the abutted seam.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge deck expansion construction, in particular to a joint device for bridge widening. Background Art

[0002] Bridge widening project: refers to the horizontal widening of bridges implemented to save construction costs, respond to low-carbon environmental protection requirements, and achieve the goal of utilizing old bridges when current roads and bridges cannot meet traffic needs. In bridge widening projects, new and old bridges need to be horizontally spliced. At present, there are four common connection methods for horizontal widening of old bridges: 1. The new and old bridges are not horizontally connected, with a break; 2. The new and old bridges are horizontally hinged, without a seam; 3. The new and old bridges are semi-rigidly connected, without a seam; 4. The new and old bridges are rigidly connected, without a seam.

[0003] Common ways to treat fractures include filling with asphalt and wood strips, connecting with bridge deck continuity, and connecting with longitudinal expansion joints.

[0004] The problem with using asphalt and wood strips for filling is that the edge pavement of new and old bridges is prone to "edge gnawing". At the same time, the difference in deflection between the new and old bridges under the repeated action of automobile loads will rub the asphalt and wood strips at the joints away from their original positions, making the asphalt and wood board filling ineffective, leading to problems such as bridge deck pavement diseases and bridge deck joint leakage.

[0005] The problem with adopting a continuous bridge deck form is that due to the difference in live load deflection between new and old bridges, it is inevitable that the cast-in-place layer of the bridge deck at the joints will crack and reflective cracks will appear in the asphalt surface layer in a long-term operating environment, leading to problems such as bridge deck pavement diseases and bridge deck joint leakage.

[0006] The joints between new and old bridges are connected by expansion joints, which have the following problems: poor driving comfort, slippery conditions at the expansion joints on rainy days, and water leakage at the joints. Utility Model Content

[0007] In view of the problems existing in the prior art, the utility model aims to provide a joint device for widening a bridge.

[0008] In order to solve the above problems, the utility model adopts the following technical solutions:

[0009] A joint device for widening a bridge comprises an elastic waterstop and two edge sealing plates, wherein the edge sealing plates comprise a bottom plate and a side plate, wherein the bottom plate is vertically connected to one side of the bottom end of the side plate, and the side plates of the two edge sealing plates are vertically arranged on both sides of the upper end of the joint between a new bridge and an old bridge, respectively, and the two bottom plates are respectively connected to the opposite side surfaces of the two side plates, and the bottoms of the two bottom plates are respectively connected to the upper surfaces of the top plates of the main beams of the new and old bridges, and the opposite sides of the two side plates are respectively provided with horizontally arranged embedding grooves, and protrusions which can be embedded in the embedding grooves are arranged on both sides of the elastic waterstop, and the elastic waterstop is filled between the two side plates, and the embedding grooves on the side plates of the protrusions on both sides of the elastic waterstop, and the tops of the side plates are flush with the top surfaces of the bridge deck pavements of the new and old bridges.

[0010] Preferably, the width of the side panels is 2-3 cm, the width of the elastic waterstop is 1-2 cm, and the total width of the elastic waterstop filled between the two side panels is 5-6 cm.

[0011] Preferably, a plurality of stiffening ribs are vertically connected between the bottom plate and the side plates.

[0012] Preferably, the stiffening rib plates are arranged at intervals of 1 m.

[0013] Preferably, a plurality of flexural stress release grooves are provided on the side plate.

[0014] Preferably, the flexural stress release groove is a groove that longitudinally cuts through the side plate.

[0015] Preferably, an elastic rubber strip is embedded in the flexural stress release groove.

[0016] Preferably, the elastic waterstop strip and the elastic rubber strip are integrally formed.

[0017] Preferably, the elastic waterstop and the elastic rubber strip are made of rubber material.

[0018] Preferably, the flexural stress release groove is arranged at intervals of 5m-10m.

[0019] Beneficial effects of the utility model

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The bridge deck width joint protection device of the utility model has a smooth joint top, which is imperceptible and silent when a vehicle passes by, and the joint is beautiful; the joint is extremely narrow relative to the wheel width, and when the joint is below the wheel track line, the wheel will not slip on rainy days; the rubber waterstop can effectively prevent rainwater from leaking along the joint to the space under the bridge; the rubber waterstop is embedded between the edge sealing plates and is not easily rubbed out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the edge banding board of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the elastic water stop belt and the elastic rubber strip of the utility model. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in 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 in 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.

[0026] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-3The utility model provides a technical solution: a joint device for bridge widening, comprising an elastic waterstop 3 and two edge sealing plates, the edge sealing plate comprising a bottom plate 1 and a side plate 2, the bottom plate 1 is vertically connected to one side of the bottom end of the side plate 2, the side plates 2 of the two edge sealing plates are vertically arranged on both sides of the upper end of the new and old bridge joints, the two bottom plates 1 are respectively connected to the opposite side surfaces of the two side plates 2, the bottoms of the two bottom plates 1 are respectively connected to the upper surfaces of the new and old bridge main beam top plates 100, the two side plates 2 facing each other are respectively provided with horizontally arranged embedding grooves 4, the elastic waterstop 3 is provided with protrusions 5 that can be embedded in the embedding grooves 4, the elastic waterstop 3 is filled between the two side plates 2, the protrusions 5 on both sides of the elastic waterstop 3 are on the embedding grooves 4 on the side plates 2, and the tops of the side plates 2 are flush with the top surfaces of the new and old bridge deck pavements 200.

[0029] The bridge deck widening joint protection device of the utility model has a flat top, which is imperceptible and silent when a vehicle passes by, and the joint is beautiful; the joint is extremely narrow relative to the wheel width, and when the joint is below the wheel track line, the wheel will not slip on rainy days; the rubber waterstop 3 can effectively prevent rainwater from leaking along the joint to the space under the bridge; the rubber waterstop 3 is embedded between the side plates 2 of the edge sealing plate through the embedding groove 4 and the raised portion 5, and is not easily rubbed out.

[0030] Specifically, the width of the side panel 2 is 2-3 cm, the width of the elastic waterstop strip 3 is 1-2 cm, and the total width of the elastic waterstop strip 3 filled between the two side panels 2 is 5-6 cm.

[0031] Furthermore, a plurality of stiffening ribs 6 are vertically connected between the bottom plate 1 and the side plates 2, thereby improving the strength of the edge sealing plate.

[0032] Specifically, the stiffening rib plates 6 are arranged at intervals of 1 m.

[0033] Furthermore, a plurality of flexural stress release grooves 7 are provided on the side panels 2 to prevent the bridge deck from bending downward under pressure, and the side panels 2 of the edge sealing board from bending, thereby preventing the bridge deck pavement from "biting the edge" phenomenon.

[0034] Specifically, the flexural stress release groove 7 is a groove that cuts through the side plate 2 longitudinally.

[0035] Furthermore, an elastic rubber strip 8 is embedded in the flexural stress release groove 7 to prevent rainwater from leaking down the flexural stress release groove 7 to the space under the bridge.

[0036] Furthermore, the elastic water stop strip 3 is integrally formed with the elastic rubber strip 8 , thereby preventing the elastic rubber strip 8 from being rubbed out by the side panel 2 .

[0037] Furthermore, the elastic water stop strip 3 and the elastic rubber strip 8 are made of rubber material.

[0038] Specifically, the flexural stress release groove 7 is arranged at intervals of 5m-10m.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge widening joint device, characterized in that: The invention comprises an elastic water stop strip (3) and two edge sealing plates, wherein the edge sealing plates comprise a bottom plate (1) and a side plate (2), wherein the bottom plate (1) is vertically connected to one side of the bottom end of the side plate (2), and the side plates (2) of the two edge sealing plates are respectively arranged vertically on both sides of the upper end of the joint between the new and old bridges, and the two bottom plates (1) are respectively connected to the opposite side surfaces of the two side plates (2), and the bottoms of the two bottom plates (1) are respectively connected to the upper surfaces of the main beam top plates (100) of the new and old bridges, and the two side plates (2) are respectively provided with horizontally arranged embedding grooves (4) on the opposite sides, and protrusions (5) that can be embedded in the embedding grooves (4) are provided on both sides of the elastic water stop strip (3), and the elastic water stop strip (3) is filled between the two side plates (2), and the protrusions (5) on both sides of the elastic water stop strip (3) are embedded in the embedding grooves (4) on the side plates (2), and the tops of the side plates (2) are flush with the top surfaces of the bridge deck pavements (200) of the new and old bridges.

2. A bridge widening joint device according to claim 1, characterized in that: The width of the side panels (2) is 2-3 cm, the width of the elastic waterstop strip (3) is 1-2 cm, and the total width of the elastic waterstop strip (3) filled between the two side panels (2) is 5-6 cm.

3. A bridge widening joint device according to claim 1, characterized in that: A plurality of stiffening ribs (6) are vertically connected between the bottom plate (1) and the side plates (2).

4. A bridge widening joint device according to claim 3, characterized in that: The stiffening rib plates (6) are arranged at intervals of 1 m.

5. A bridge widening joint device according to claim 1, characterized in that: A plurality of flexural stress release grooves (7) are provided on the side plate (2).

6. A bridge widening joint device according to claim 5, characterized in that: The flexural stress release groove (7) is a groove that cuts through the side plate (2) longitudinally.

7. A bridge widening joint device according to claim 5, characterized in that: An elastic rubber strip (8) is embedded in the flexural stress release groove (7).

8. A bridge widening joint device according to claim 7, characterized in that: The elastic water stop strip (3) and the elastic rubber strip (8) are integrally formed.

9. A bridge widening joint device according to claim 8, characterized in that: The elastic water stop strip (3) and the elastic rubber strip (8) are made of rubber material.

10. A bridge widening joint device according to claim 5, characterized in that: The flexural stress release groove (7) is arranged at intervals of 5m-10m.

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