Railway bridge beam end durable waterproof device

Abstract

The utility model discloses a durable waterproof device for a railway bridge end, which relates to the technical field of bridge construction, and comprises an anchoring steel bar and a special-shaped section bar which are symmetrical in structure and are arranged in concrete on two sides of a bridge seam, one end of the anchoring steel bar is screwed into a trapezoidal nut embedded in the special-shaped section bar and is fixed on the special-shaped section bar through a locking nut, and the other end of the anchoring steel bar is screwed into the special-shaped section bar. The other ends of the anchoring steel bars are buried in concrete, a waterproof belt is connected between the two sets of special-shaped sectional materials, the waterproof belt is fixedly embedded in the special-shaped sectional materials to achieve the water stopping effect, and the waterproof belt can deform and stretch out and draw back to adapt to deformation and displacement of a beam joint. The waterproof belt can be quickly anchored, sealed and fixed, is adaptive to telescopic deformation of a beam seam, is firm in connection, is sealed and waterproof, and has the characteristics of simplicity and convenience in installation and low use and maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and particularly relates to a durable waterproof device for the beam ends of railway bridges. Background Art

[0002] The waterproof device of railway bridges is installed between adjacent beam ends or at the expansion joint between the beam body and the breast wall of the abutment, and plays an important role in the expansion and waterproof performance of the bridge ends. It is an important component of the bridge, and its overall quality and waterproof performance will directly affect the use safety and durability of the entire bridge.

[0003] For example, patent number CN 112227195A discloses a durable waterproof device for railway bridges. Its structure includes profiles respectively arranged on both sides of the expansion joint, and a waterproof belt is fixed between the profiles through the cavities on their inner sides; the characteristics are that: the cavity and the pressing plate arranged inside it position the side edges of the waterproof belt through a socket structure, and the pressing plate and the waterproof belt are hermetically fixed in the cavity by inserting a locking plate. This durable waterproof device for railway bridges can quickly install, position, anchor and seal the waterproof belt, and at the same time ensure that the installation and disassembly of the waterproof belt are very convenient and achieve the characteristics of firm connection, strict sealing and long service life of the waterproof device.

[0004] The utility model provides another durable waterproof device for the beam ends of railway bridges for actual application, increasing the selectivity. The waterproof belt can be deformed and expanded, adapting to the deformation and displacement of the beam joint, and can quickly anchor, seal and fix the waterproof belt, adapting to the expansion and contraction deformation of the beam joint, and achieving firm connection and waterproof sealing of the waterproof belt. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A durable waterproof device for the beam ends of railway bridges includes anchor bars and special-shaped profiles that are symmetrically structured and are both installed in the concrete on both sides of the beam joint. One end of the anchor bar is screwed into a trapezoidal nut embedded in the special-shaped profile and fixed on the special-shaped profile with a locking nut. The other end of the anchor bar is buried in the concrete, and a waterproof belt is connected between the two groups of special-shaped profiles.

[0007] Preferably, the special-shaped profile is provided with a dovetail groove at the end connected to the anchor bar, the trapezoidal nut and the locking nut are located in the dovetail groove, and the special-shaped profile is provided with a reserved cavity, an anchoring cavity and an orifice at the position connected to the waterproof belt. The reserved cavity is filled with waterproof paint.

[0008] Preferably, the waterproof belt includes a middle expansion section and transition sections on both sides of the expansion section. The other end of the transition section is provided with an embedded section, and the embedded section is extruded into the anchoring cavity of the special-shaped profile.

[0009] Preferably, the opening dimension c value of the cavity opening is greater than or equal to the a value of the embedded section and less than the b value of the embedded section.

[0010] Preferably, the telescopic section is multi-U-shaped, single-U-shaped or V-shaped.

[0011] Preferably, both the special-shaped profile and the waterproof belt are extruded aluminum profiles.

[0012] The beneficial effects of the present utility model are as follows: The special-shaped profile is installed in the concrete on both sides of the beam joint, the waterproof belt is installed and embedded in the anchorage cavity of the special-shaped profile, and the trapezoidal nut in the rear end dovetail groove of the special-shaped profile fixes the anchorage steel bar; The waterproof belt is embedded in the special-shaped profile to play a water-stop role. The waterproof belt can be deformed and telescopic to adapt to the deformation and displacement of the beam joint; The present utility model can quickly anchor, seal and fix the waterproof belt, adapt to the telescopic deformation of the beam joint, realize firm connection and waterproof sealing of the waterproof belt, and has the characteristics of simple installation, low use and maintenance costs. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of the present utility model.

[0014] Figure 2 It is a top view of the present utility model installed on the expansion joint.

[0015] Figure 3 It is a structural schematic diagram of the special-shaped profile in the present utility model.

[0016] Figures 4 - 6 It is a structural schematic diagram of waterproof belts in different forms.

[0017] Among them, 1 - anchorage steel bar, 2 - special-shaped profile, 21 - dovetail groove, 22 - reserved cavity, 23 - cavity opening, 24 - anchorage cavity, 3 - waterproof belt, 31 - embedded section, 32 - transition section, 33 - telescopic section, 4 - trapezoidal nut, 5 - locking nut. Detailed Embodiments

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] As Figures 1 to 6 shown, a durable waterproof device for the beam end of a railway bridge includes anchorage steel bars 1 and special-shaped profiles 2 that are symmetrically structured and both installed in the concrete on both sides of the beam joint. One end of the anchorage steel bar 1 is screwed into and embedded with a trapezoidal nut 4 in the special-shaped profile 2 and fixed on the special-shaped profile 2 with a locking nut 5. The other end of the anchorage steel bar 1 is buried in the concrete, and a waterproof belt 3 is connected between the two groups of special-shaped profiles 2.

[0020] In this embodiment, a dovetail groove 21 is provided at the end of the special-shaped profile 2 connected to the anchoring steel bar 1, and the trapezoidal nut 4 and the locking nut 5 are located in the dovetail groove 21. A reserved cavity 22, an anchoring cavity 24 and a cavity opening 23 are provided at the position where the special-shaped profile 2 is connected to the waterproof belt 3, and the reserved cavity 22 is filled with waterproof coating.

[0021] In this embodiment, the waterproof tape 3 includes a middle telescopic section 33 and transition sections 32 located on both sides of the telescopic section 33. The other end of the transition section 32 is provided with an embedded section 31, and the embedded section 31 is squeezed into the anchoring cavity 24 of the special-shaped profile 2.

[0022] In this embodiment, the opening size c of the cavity 23 is greater than or equal to the value a of the embedding section 31 and smaller than the value b of the embedding section 31 .

[0023] In this embodiment, the telescopic section 33 is multi-U-shaped, single-U-shaped or V-shaped.

[0024] In this embodiment, the special-shaped profile 2 and the waterproof tape 3 are both extruded aluminum profiles.

[0025] When the utility model is in use, the anchor steel bar 1 is fixed by the locking nut 5 and the trapezoidal nut 4 provided on the special-shaped profile 2, and the waterproof belt 3 is connected and embedded in the anchor cavity 24 of the special-shaped profile 2, which is convenient for installing the waterproof belt 3 and improving the construction efficiency of the entire waterproof belt 3. The waterproof belt 3 is made of extruded aluminum alloy and the expansion section 33 is multi-U-shaped, single-U-shaped or V-shaped, which meets the expansion and contraction deformation and waterproofing effects of the bridge beam joint, and has good corrosion resistance and durability, thereby increasing service life, reducing later maintenance work, and saving use and maintenance costs.

[0026] The special-shaped profile 2 is installed in the concrete on both sides of the beam joint, the waterproof belt 3 is installed and embedded in the anchor cavity 24 of the special-shaped profile 2, and the trapezoidal nut 4 in the dovetail groove 21 at the rear end of the special-shaped profile 2 is fixed to the anchor steel bar 1; the waterproof belt 3 is embedded in the special-shaped profile 2 to play a water-stopping role, and the waterproof belt 3 can be deformed and expanded to adapt to the deformation and displacement of the beam joint; the utility model can quickly anchor and seal the waterproof belt 3 to adapt to the expansion and contraction deformation of the beam joint, so as to achieve a firm connection, sealing and waterproofing of the waterproof belt 3, and has the characteristics of simple installation, low use and maintenance costs.

[0027] It is understood from common technical knowledge that the present invention may be implemented through other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A durable waterproof device for the beam end of a railway bridge, characterized in that, It includes anchoring steel bars (1) and special-shaped profiles (2) that are symmetric in structure and are both installed in the concrete on both sides of the beam joint. One end of the anchoring steel bar (1) is screwed into a trapezoidal nut (4) embedded in the special-shaped profile (2) and fixed on the special-shaped profile (2) with a locking nut (5). The other end of the anchoring steel bar (1) is buried in the concrete. A waterproof strip (3) is connected between two groups of the special-shaped profiles (2); The special-shaped profile (2) is provided with a dovetail groove (21) at the end connected to the anchoring steel bar (1). The trapezoidal nut (4) and the locking nut (5) are located in the dovetail groove (21). The special-shaped profile (2) is provided with a reserved cavity (22), an anchoring cavity (24) and a cavity opening (23) at the position where the waterproof strip (3) is connected. The reserved cavity (22) is filled with waterproof coating.

2. The durable waterproof device for the beam end of a railway bridge according to claim 1, characterized in that: The waterproof strip (3) includes a middle telescopic section (33) and transition sections (32) located on both sides of the telescopic section (33). The other end of the transition section (32) is provided with an embedded section (31), and the embedded section (31) is extruded into the anchoring cavity (24) of the special-shaped profile (2).

3. The durable waterproof device for the beam end of a railway bridge according to claim 2, characterized in that: The opening dimension c value of the cavity opening (23) is greater than or equal to the a value of the embedded section (31) and less than the b value of the embedded section (31).

4. The durable waterproof device for the beam end of a railway bridge according to claim 2, characterized in that: The telescopic section (33) is of multi-U shape, single-U shape or V shape.

5. The durable waterproof device for the beam end of a railway bridge according to claim 1, characterized in that: The special-shaped profile (2) and the waterproof strip (3) are both extruded aluminum profiles.

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