Bridge expansion joint filling structure and bridge expansion joint structure thereof

Abstract

The utility model belongs to bridge construction, and discloses a bridge expansion joint filling structure and a bridge expansion joint structure thereof.The bridge expansion joint filling structure comprises a foam strip, the foam strip comprises a foam strip upper portion and a foam strip lower portion, and the longitudinal section of the foam strip lower portion is of a semicircular structure protruding downwards; the maximum width of the foam strip lower part is larger than that of the foam strip upper part, so that step structures are respectively formed between the foam strip lower part and the left side of the foam strip upper part and between the foam strip lower part and the right side of the foam strip upper part. The structure is simple and convenient to construct, traffic can be opened by fixing the foam strips, the road occupation time is short, the difficult problems of broken stone seam clamping, impurity deposition and the like are completely eradicated, and the structure has remarkable advantages in the aspects of construction cost, maintenance cost, service life and the like.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction, and more specifically, to a bridge expansion joint filling structure and a bridge expansion joint structure thereof. Background Art

[0002] The traditional rubber waterstop for bridge expansion joints is a "U"-shaped groove, which is easy to accumulate sediment and requires a lot of manpower for daily cleaning. The expansion joints are often not cleaned in time, and the broken stones are stuck in the joints, causing expansion failure. Rubber aging and cracking, waterstop damage and water leakage are also common, causing damage to the bridge beam end, platform back, rubber bearing, pad stone, and cap of the beam platform, shortening the service life of the bridge. At the same time, the installation and replacement of the waterstop is difficult and the maintenance cost is high. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a bridge expansion joint filling structure and a bridge expansion joint structure thereof.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A bridge expansion joint filling structure includes a foam strip, wherein the foam strip includes an upper foam strip portion and a lower foam strip portion, wherein the longitudinal section of the lower foam strip portion is arranged as a semicircular structure protruding downward, and the maximum width of the lower foam strip portion is greater than the width of the upper foam strip portion, so that a step structure is formed between the lower foam strip portion and the left side of the upper foam strip portion and between the lower foam strip portion and the right side of the upper foam strip portion.

[0006] Furthermore, a protective layer is provided on the outer surface of the lower part of the foam strip.

[0007] Furthermore, the protective layer is a rubber sleeve.

[0008] Furthermore, the foam strip comprises a foam body and a protective film covering the foam body.

[0009] Furthermore, the protective film is a PE film.

[0010] Furthermore, the longitudinal section of the upper portion of the foam strip is a rectangular structure.

[0011] The utility model also provides a bridge expansion joint structure, including two left and right groups of steel sections and a waterstop, an expansion joint is formed between the two left and right groups of steel sections, the waterstop is arranged in the expansion joint, and the expansion joint is also provided with the bridge expansion joint filling structure as described above, and the bridge expansion joint filling structure is located at the upper end of the waterstop.

[0012] Furthermore, the opposite sides of the left and right steel sections are respectively provided with clamping grooves, and the left and right sides of the lower part of the foam strip are respectively clamped with the corresponding clamping grooves.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1) The utility model is easy to construct. Traffic can be opened after the foam strip is fixed, which reduces the road occupation time and eliminates difficult problems such as gravel jams and debris accumulation. It has significant advantages in terms of construction cost, maintenance cost, service life, etc.

[0015] 2) The foam strip and protective layer of the utility model can play a good waterproof and dustproof effect, can prevent the expansion joint from being stuck by gravel, and can also prevent the water stop strip from cracking and damaging, thereby extending the service life of the expansion joint;

[0016] 3) The utility model utilizes the left and right ends of the semicircular structure of the foam strip to be engaged with the slots of the steel section, thereby preventing the foam strip from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the longitudinal section structure of a bridge expansion joint filling structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the end structure of a foam strip in a bridge expansion joint filling structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the longitudinal cross-section structure of a foam strip in a bridge expansion joint filling structure of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a bridge expansion joint structure.

[0021] In the figure: foam strip 1, foam strip upper part 100, foam strip lower part 101, step structure 102, foam body 103, protective film 104, protective layer 2, steel section 3, slot 300, water stop strip 4. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 and Figure 2A bridge expansion joint filling structure includes a foam strip 1, the foam strip 1 includes a foam strip upper part 100 and a foam strip lower part 101, the longitudinal section of the foam strip lower part 101 is set as a semicircular structure protruding downward, the longitudinal section of the foam strip upper part 100 is a rectangular structure, the maximum width of the foam strip lower part 101, that is, the diameter of the semicircular structure of the foam strip lower part 101 is greater than the width of the foam strip upper part 100, so that step structures 102 are respectively formed between the foam strip lower part 101 and the left side of the foam strip upper part 100 and between the foam strip lower part 101 and the right side of the foam strip upper part 100.

[0024] Continue reading Figure 1 In one embodiment of the utility model, the lower part 101 of the foam strip is coated with a protective layer 2 which is bonded thereto. The protective layer 2 is preferably a rubber sleeve. In addition, a silicone sleeve or other structures may also be used.

[0025] It can be understood that when the bridge expansion joint filling structure of the present invention is used, the protective layer 2 will contact the waterstop strip 4, thereby preventing the foam strip 1 from being worn and enhancing the dustproof and waterproof effects.

[0026] Continue reading Figure 3 In one embodiment of the utility model, the foam strip 1 includes a foam body 103 and a protective film 104 covering the foam body 103. The protective film 104 protects the foam body 103 and is preferably a PE film.

[0027] See also Figure 4 A bridge expansion joint structure includes two left and right groups of steel sections 3 and a waterstop 4. An expansion joint is formed between the two left and right groups of steel sections 3. The waterstop 4 is arranged in the expansion joint. The expansion joint is also provided with the bridge expansion joint filling structure as described above. The bridge expansion joint filling structure is located at the upper end of the waterstop 4.

[0028] Continue reading Figure 4 In one embodiment of the utility model, slots 300 are respectively provided on opposite sides of the left and right steel sections 3, and the left and right sides of the lower part 101 of the foam strip are respectively engaged with the corresponding slots 300. The step structure 102 of the foam strip 1 is used to form barbs to prevent the foam strip 101 from detaching from the expansion joint, and the left and right ends of the waterstop 4 are also engaged with the slots 300 through the protrusion structure. The bridge expansion joint filling structure squeezes the waterstop 4 so that the protrusion structure of the waterstop 4 cannot detach from the slot 300.

[0029] 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 in the protection scope of the present utility model.

Claims

1. A bridge expansion joint filling structure, It is characterized in that The invention comprises a foam strip (1), wherein the foam strip (1) comprises an upper foam strip portion (100) and a lower foam strip portion (101), wherein the longitudinal section of the lower foam strip portion (101) is arranged to be a semicircular structure protruding downward, and the maximum width of the lower foam strip portion (101) is greater than the width of the upper foam strip portion (100), so that a step structure (102) is formed between the lower foam strip portion (101) and the left side of the upper foam strip portion (100), and between the lower foam strip portion (101) and the right side of the upper foam strip portion (100), respectively.

2. A bridge expansion joint filling structure according to claim 1, It is characterized in that The lower part (101) of the foam strip is covered with a protective layer (2).

3. A bridge expansion joint filling structure according to claim 2, It is characterized in that The protective layer (2) is a rubber sleeve.

4. A bridge expansion joint filling structure according to claim 1, It is characterized in that The foam strip (1) comprises a foam body (103) and a protective film (104) disposed outside the foam body (103).

5. A bridge expansion joint filling structure according to claim 4, It is characterized in that The protective film (104) is a PE film.

6. A bridge expansion joint filling structure according to claim 1, It is characterized in that The longitudinal section of the upper portion (100) of the foam strip is a rectangular structure.

7. A bridge expansion joint structure, comprising two left and right groups of steel sections (3) and a water stop strip (4), wherein an expansion joint is formed between the two left and right groups of steel sections (3), and the water stop strip (4) is arranged in the expansion joint. It is characterized in that The expansion joint is also provided with a bridge expansion joint filling structure as claimed in any one of claims 1 to 6, and the bridge expansion joint filling structure is located at the upper end of the water stop strip (4).

8. A bridge expansion joint structure according to claim 7, It is characterized in that The opposite sides of the left and right steel sections (3) are respectively provided with clamping grooves (300), and the left and right sides of the lower part (101) of the foam strip are respectively clamped with the corresponding clamping grooves (300).

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