U-shaped stainless steel water stop structure for bridge comb plate expansion joint

Abstract

The utility model discloses a U-shaped stainless steel water stop structure for a bridge comb plate expansion joint, which is characterized in that a bridge expansion joint water stop structure consisting of a U-shaped stainless steel water stop belt, sound insulation cotton and a water collecting hopper is adopted, and the stainless steel water stop belt is connected with anchoring steel plates arranged on beam bodies on two sides through anchoring bolts; the sound insulation cotton is embedded between the two anchoring steel plates below the stainless steel sliding plate; the water collecting hopper is arranged at the end of the expansion joint, and the single side of the water collecting hopper is anchored to a cast-in-place concrete structure of the beam body. Compared with the prior art, the stainless steel waterstop has the advantages of simple structure, good waterproof effect, low manufacturing cost, convenience in installation and the like, the deformation requirement can be met within the designed service life, the stainless steel waterstop material is high in strength and not easy to crack and damage, and the stainless steel waterstop has good economic, environmental and social benefits and popularization prospects.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge expansion joints, specifically a U-shaped stainless steel waterstop structure for bridge comb plate expansion joints. Background Technology

[0002] Bridge expansion joints are crucial components connecting bridge beam ends or abutments to beam segments. Their design allows for the free expansion and contraction of the main bridge beam while ensuring smooth, bouncy rides for vehicles. Water leakage at bridge expansion joints is a common problem. The primary cause is the use of rubber waterstops in the expansion joints, which are prone to aging, cracking, and deformation due to prolonged exposure to sun and rain, leading to leakage. Furthermore, misalignment between the waterstop and the anchoring steel plate of the movable toothed plate during installation can cause rainwater to seep outside the waterstop. Widespread leakage at expansion joints negatively impacts the safety, durability, and aesthetics of the bridge. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by designing a U-shaped stainless steel waterstop structure for bridge expansion joints. This structure comprises a U-shaped stainless steel waterstop, sound insulation cotton, and a water collection hopper. The water collection hopper at the end of the expansion joint smoothly drains rainwater from the waterstop into the municipal storm drain. The U-shaped stainless steel waterstop is connected to the anchoring steel plate via anchor bolts, preventing misalignment between the waterstop and the anchoring steel plate. This U-shaped stainless steel waterstop has a simple structure, low manufacturing cost, convenient installation, and wide application range. It can ensure that it meets deformation requirements within its designed service life, has high material strength, and will not be damaged, demonstrating good economic practicality and promising prospects for widespread adoption.

[0004] The specific technical solution to achieve the purpose of this utility model is: a U-shaped stainless steel waterstop structure for bridge expansion joints, comprising: a movable toothed plate and a stainless steel sliding plate disposed on the bridge expansion joint; the movable toothed plate is disposed on the stainless steel sliding plate and slidably connected to it; the movable toothed plate is welded to anchoring steel plates disposed on beams A and B on both sides of the expansion joint; the bridge expansion joint adopts a waterstop structure composed of a U-shaped stainless steel waterstop, a water collection hopper, and sound insulation cotton; the U-shaped stainless steel waterstop is connected to the anchoring steel plates disposed on both sides of the beams by anchoring bolts; the sound insulation cotton is embedded between the two anchoring steel plates under the stainless steel sliding plate; the water collection hopper is disposed at the end of the expansion joint, and one side of the water collection hopper is anchored to the cast-in-place concrete structure by water collection hopper anchoring bolts.

[0005] The movable toothed plate is connected to the anchoring steel plate by welding, and the anchoring steel plate is connected to the anchoring steel bars by welding; the sound insulation cotton is embedded under the stainless steel sliding plate between the anchoring steel plates; the U-shaped stainless steel waterstop is connected to the anchoring steel plate by anchoring bolts; the water collection hopper is located at the end of the expansion joint and is anchored on one side of the cast-in-place concrete structure by anchoring bolts; the thickness of the U-shaped stainless steel waterstop is 0.3mm, and its bends are all rounded, with a maximum deformation of ±60mm, to meet the deformation requirements during expansion joint installation and the free deformation of the expansion joint during normal use; the U-shaped stainless steel waterstop is bolted to the anchoring steel plate to avoid leakage caused by misalignment between the waterstop and the anchoring steel plate.

[0006] Compared with the prior art, this utility model has the advantages of simple structure, good waterproof effect, low manufacturing cost and convenient installation. It can ensure that the deformation needs are met within the design service life. The stainless steel waterstop material has high strength and is not easy to break or be damaged. It has good economic, environmental and social benefits and good prospects for promotion. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model;

[0008] Figure 2 for Figure 1 Side view;

[0009] Figure 3 This is a schematic diagram of a U-shaped stainless steel waterstop. Detailed Implementation

[0010] See Figures 1-2 This utility model includes: a movable toothed plate 1 and a stainless steel sliding plate 2 installed on the bridge expansion joint. The movable toothed plate 1 is installed on the stainless steel sliding plate 2 and welded to the anchoring steel plates 3 installed on the A beam 11 and B beam 12 on both sides of the expansion joint. The movable toothed plate 1 and the stainless steel sliding plate 2 are slidably connected. The bridge expansion joint adopts a water-stopping structure composed of a U-shaped stainless steel waterstop 5, sound insulation cotton 6, and a water collection hopper 8. The U-shaped stainless steel waterstop 5 is anchored to the A beam 11 and B beam 12 by anchoring bolts 7. The anchoring steel plate 3 is connected to the upper part; the sound insulation cotton 6 is embedded between the two anchoring steel plates 3 under the stainless steel sliding plate 2; the movable toothed plate 1 is connected to the anchoring steel plate 3 by welding, and the anchoring steel plate 3 is connected to the anchoring steel bar 4 by welding; the U-shaped stainless steel waterstop 5 is connected to the anchoring steel plate 3 by anchoring bolt 7, which can avoid leakage caused by misalignment between the U-shaped stainless steel waterstop 5 and the two anchoring steel plates 3; the water collection hopper 8 is located at the end of the expansion joint and is anchored on one side in the cast-in-place concrete structure by the water collection hopper anchoring bolt 9.

[0011] See Figure 3The U-shaped stainless steel waterstop 5 has a U-shaped cross section with rounded bends. The thickness of the waterstop is 0.3mm to accommodate the deformation requirements during expansion joint installation and the free deformation of the expansion joint during normal use. Its maximum deformation is ±60mm.

[0012] The above is merely a further explanation of this utility model and is not intended to limit the scope of this utility model patent. All equivalent implementations of this utility model should be included within the scope of the claims of this utility model patent.

Claims

1. A U-shaped stainless steel waterstop structure for expansion joints of bridge comb plates, comprising: The bridge expansion joint is provided with a movable toothed plate (1) and a stainless steel sliding plate (2). The movable toothed plate (1) is set on the stainless steel sliding plate (2) and welded to the anchoring steel plates (3) set on both sides of the expansion joint. The movable toothed plate (1) and the stainless steel sliding plate (2) are slidably connected. The bridge expansion joint adopts a water-stopping structure composed of a U-shaped stainless steel waterstop (5), a water collection hopper (8), and sound insulation cotton (6). The U-shaped stainless steel waterstop (5) is connected to the anchoring steel plates (3) set on both sides of the beam by anchoring bolts (7). The sound insulation cotton (6) is embedded between the two anchoring steel plates (3) under the stainless steel sliding plate (2). The water collection hopper (8) is set at the end of the expansion joint and is anchored on one side in the cast-in-place concrete structure of the beam.

2. The U-shaped stainless steel waterstop structure for bridge comb-tooth plate expansion joints according to claim 1, characterized in that, The water collection bucket (8) is anchored to the cast-in-place concrete structure on one side by the water collection bucket anchor bolt (9).

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