U-shaped stainless steel water stop structure for bridge comb plate expansion joint
Through the combined structure of U-shaped stainless steel water stop, water collecting bucket and sound insulation cotton, the problem of water leakage in the expansion joint of the bridge comb plate is solved, efficient waterproofing and durability are achieved, and the safety and aesthetics of the bridge are improved.
Patent Information
- Application Number
- CN202411757215.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-01-03
Smart Images
Figure CN119243572A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bridge expansion devices, in particular to a U-shaped stainless steel water-stopping structure used for expansion joints of comb plates of bridges. Background Art
[0002] Bridge expansion joints are important components that connect the ends of bridge beams or abutments and beam sections. Through their own structure, they can not only meet the free expansion and contraction of the bridge main beam, but also ensure smooth and non-jumping driving of vehicles. Water leakage at the expansion joints of the bridge comb plates is a common problem. The main reason is that the water stop in the expansion joints is made of rubber water stop strips, which are prone to aging, cracking, deformation and other problems due to long-term exposure to the sun and rain, which leads to water leakage in the expansion joints. In addition, during the installation and construction of the expansion joints, the installation between the water stop strips and the anchor steel plates of the movable tooth plates is easy to be misaligned, which may cause rainwater to leak to the outside of the water stop strips. Water leakage at the expansion joints is widespread, affecting the safety, durability and aesthetics of the bridge. Summary of the invention
[0003] The purpose of the present invention is to design a U-shaped stainless steel waterstop structure for the expansion joint of the comb plate of the bridge in view of the deficiencies in the prior art. The bridge expansion joint waterstop structure is composed of a stainless steel waterstop with a U-shaped cross-section, sound insulation cotton and a water collecting bucket. The rainwater in the waterstop can be smoothly discharged to the municipal rainwater pipe through the water collecting bucket arranged at the end of the expansion joint. The U-shaped stainless steel waterstop is connected to the anchor steel plate by anchor bolts to avoid installation misalignment between the waterstop and the anchor steel plate. The U-shaped stainless steel waterstop has a simple structure, low manufacturing cost, convenient installation and a wide range of applications. It can ensure that the deformation requirements are met within the designed service life, the material strength is high and will not be damaged, and it has good economic practicality and promotion prospects.
[0004] The specific technical solution to achieve the purpose of the present invention is: a U-shaped stainless steel waterstop structure for the expansion joint of the comb plate of a bridge, comprising: a movable tooth plate and a stainless steel slide plate arranged on the expansion joint of the bridge, the movable tooth plate is arranged on the stainless steel slide plate and is slidably connected to the stainless steel slide plate, the movable tooth plate is welded to the anchor steel plates arranged on the A beam and the B beam on both sides of the expansion joint, and its characteristic is that the bridge expansion joint adopts a waterstop structure composed of a stainless steel waterstop with a U-shaped cross-section, a water collecting bucket and sound insulation cotton, the U-shaped stainless steel waterstop is connected to the anchor steel plates arranged on the beams on both sides by anchor bolts; the sound insulation cotton is embedded between the two anchor steel plates under the stainless steel slide plate; the water collecting bucket is arranged at the end of the expansion joint, and one side of the water collecting bucket is anchored in the cast-in-place concrete structure by the water collecting bucket anchor bolts.
[0005] The movable tooth plate is connected to the anchor steel plate by welding, and the anchor steel plate is connected to the anchor steel bar by welding; the sound insulation cotton is embedded under the stainless steel slide plate between the anchor steel plates; the U-shaped stainless steel waterstop is connected to the anchor steel plate by anchor bolts; the water collecting bucket is located at the end of the expansion joint and is anchored on one side in the cast-in-place concrete structure by anchor bolts; the thickness of the U-shaped stainless steel waterstop is 0.3mm, and its bending parts are all transitioned with circular arcs, with a maximum deformation of ±60mm, so as to meet the deformation requirements during the installation of the expansion joint and the free deformation of the expansion joint during normal use; the U-shaped stainless steel waterstop is connected to the anchor steel plate by bolts, which can avoid leakage caused by misalignment between the waterstop and the anchor steel plate.
[0006] Compared with the prior art, the present invention has the advantages of simple structure, good waterproof effect, low manufacturing cost, and easy installation. It can ensure that the deformation needs are met within the designed service life. The stainless steel waterstop material has high strength and is not easy to crack or damage. It has good economic, environmental, and social benefits and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Side view of Figure 3 This is a schematic diagram of the "U"-shaped stainless steel waterstop structure. DETAILED DESCRIPTION
[0008] See also Figure 1-2 The present invention comprises: a movable tooth plate 1 and a stainless steel slide plate 2 arranged on the expansion joint of the bridge, the movable tooth plate 1 is arranged on the stainless steel slide plate 2, and is welded with the anchor steel plates 3 arranged on the A beam body 11 and the B beam body 12 on both sides of the expansion joint, the movable tooth plate 1 and the stainless steel slide plate 2 are slidably connected, the bridge expansion joint adopts a water-stop structure composed of a stainless steel water stop belt 5 with a U-shaped cross section, a sound insulation cotton 6 and a water collecting bucket 8, the U-shaped stainless steel water stop belt 5 is connected to the A beam body 11 and the B beam body 12 by anchor bolts 7. The anchor steel plate 3 is connected; the sound insulation cotton 6 is embedded between the two anchor steel plates 3 under the stainless steel slide plate 2; the movable tooth plate 1 is connected to the anchor steel plate 3 by welding, and the anchor steel plate 3 is connected to the anchor steel bar 4 by welding; the U-shaped stainless steel waterstop 5 is connected to the anchor steel plate 3 by the anchor bolt 7, which can avoid leakage caused by misalignment between the U-shaped stainless steel waterstop 5 and the two anchor steel plates 3; the water collecting bucket 8 is located at the end of the expansion joint and is unilaterally anchored in the cast-in-place concrete structure by the water collecting bucket anchor bolt 9.
[0009] See also Figure 3The cross-section of the U-shaped stainless steel waterstop 5 is "U"-shaped, and its bending parts are all transitioned with arcs. The thickness of the waterstop is 0.3mm to meet the deformation requirements during the installation of the expansion joint and the free deformation of the expansion joint during normal use. The maximum deformation is ±60mm.
[0010] The above is only a further explanation of the present invention and is not intended to limit the patent of the present invention. Any equivalent implementation of the present invention should be included in the scope of the claims of the patent of the present invention.
Claims
1. A U-shaped stainless steel water-stop structure for a bridge comb plate expansion joint, comprising: A movable tooth plate and a stainless steel slide plate are arranged on the expansion joint of the bridge, the movable tooth plate is arranged on the stainless steel slide plate and is welded to the anchor steel plates arranged on the beams on both sides of the expansion joint, the movable tooth plate and the stainless steel slide plate are slidably connected, and it is characterized in that the bridge expansion joint adopts a water-stop structure composed of a stainless steel waterstop with a U-shaped cross-section, a water collecting bucket and sound insulation cotton, the U-shaped stainless steel waterstop is connected to the anchor steel plates arranged on the beams on both sides by anchor bolts; the sound insulation cotton is embedded between the two anchor steel plates under the stainless steel slide plate; the water collecting bucket is arranged 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 water-stopping structure for the expansion joint of the bridge comb plate according to claim 1 is characterized in that: One side of the water collecting bucket is anchored in the cast-in-place concrete structure by water collecting bucket anchor bolts.
3. The U-shaped stainless steel water-stopping structure for the expansion joint of the bridge comb plate according to claim 1 is characterized in that: The thickness of the U-shaped stainless steel water stop is 0.3 mm, and its bending parts are all arc transitions, with a maximum deformation of ±60 mm.