High-damping stay cable guide pipe waterproof device
By setting a composite ring and sleeve structure on the outside of the cable-stayed cable conduit and filling it with anti-corrosion foam filler, the problems of poor waterproofing effect of the cable-stayed bridge conduit in high-humidity areas and easy damage of the foam filler are solved, and efficient waterproofing and vibration reduction effects are achieved.
Patent Information
- Application Number
- CN202422948889.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The waterproofing of the cable ducts of existing cable-stayed bridges is not effective in high-humidity areas, and the anti-corrosion foam filling material is easily damaged by vibration.
A high-damping cable-stayed cable duct waterproofing device is used, which includes a first and a second protective sleeve and a composite ring, which are sleeved on the outside of the cable, and an anti-corrosion foam filler is filled in the gap between the composite ring and the sleeve. The composite ring is composed of a rubber ring and a metal plate to reduce vibration and improve the waterproofing effect.
It achieves effective waterproofing in high-humidity areas, while reducing the vibration of the stay cables and avoiding damage to the foam filler.
Smart Images
Figure CN223445998U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of bridge engineering, especially the technical field of cable-stayed cable conduit waterproof device. BACKGROUND
[0002] At present, about 20% of bridges in China are prestressed concrete cable-stayed bridges, and in the design of bridges, there are mainly three kinds of traditional anticorrosion sealing methods for the cable-stayed bridge girder cable conduit end:
[0003] 1. Set up a dehumidification system, but it is not suitable for high humidity areas;
[0004] 2. Apply grease to seal the internal materials of the cable conduit, but the grease will melt at high temperatures and has poor durability;
[0005] 3. Use polyurethane foaming material to seal the cable at the upper end of the cable conduit, but the foaming material is easily damaged by the high-frequency vibration of the cable. SUMMARY
[0006] The utility model discloses a high-damping cable-stayed cable conduit waterproof device, which can make the waterproof device have good effects, reduce the vibration of the cable-stayed cable, and avoid the damage of the anticorrosive foaming filler.
[0007] To achieve the above-mentioned purpose, the utility model provides a high-damping cable-stayed cable conduit waterproof device, which comprises a first protective sleeve, a second protective sleeve and a composite ring, the first protective sleeve and the second protective sleeve are sleeved on the outside of the cable-stayed cable, the first protective sleeve has a section of the pipe wall protruding outward to form an annular protruding part, the inside of the annular protruding part is provided with a composite ring, the outer wall of the composite ring is tightly attached to the inner wall of the annular protruding part, the inner wall of the composite ring is tightly attached to the cable-stayed cable, the composite ring is composed of a rubber ring and a metal plate, a plurality of metal plates are arranged in the inside of the ring wall of the rubber ring, the rubber ring is in a compressed state, a part of the second protective sleeve is sleeved on the outside of the first protective sleeve, the gap between the first protective sleeve and the cable-stayed cable, the gap between the second protective sleeve and the cable-stayed cable, and the gap between the second protective sleeve and the first protective sleeve are all filled with anticorrosive foaming filler.
[0008] Preferably, the metal plate is a steel plate.
[0009] Preferably, the annular protruding part is close to the second protective sleeve, the outer diameter of the annular protruding part close to the end of the second protective sleeve is greater than the outer diameter of the second protective sleeve close to the end of the annular protruding part, and the gap between the annular protruding part and the second protective sleeve is also filled with anticorrosive foaming filler.
[0010] Preferably, the second protective sleeve is composed of a first sleeve, a tapered sleeve and a third sleeve connected in sequence, the first sleeve is connected with the large-diameter end of the tapered sleeve, the third sleeve is connected with the small-diameter end of the tapered sleeve, and the first sleeve is sleeved outside the first protective sleeve.
[0011] The utility model discloses beneficial effects: the utility model discloses through the gap between first protection sleeve and cable-stayed cable, the gap between second protection sleeve and cable-stayed cable, the gap between second protection sleeve and first protection sleeve are filled with anticorrosive foaming filling material, make waterproof device have good waterproof effect, the composite ring of first protection sleeve inside is set to the cable-stayed cable, and the composite ring is composed of rubber ring and metal sheet, make waterproof device have higher damping, can reduce the vibration of cable-stayed cable, avoid the damage loss of anticorrosive foaming filling material.
[0012] The features and advantages of the utility model will be explained in detail with examples combined with the drawings. DRAWINGS
[0013] Figure 1 It is the front view of the utility model high damping cable-stayed cable guide pipe waterproof device.
[0014] In the drawing: 1-cable-stayed cable, 2-second protection sleeve, 3-first protection sleeve, 4-anticorrosive foaming filling material, 5-composite ring, 21-first sleeve, 22-tapered sleeve, 23-third sleeve, 30-annular protruding portion, 51-rubber ring, 52-metal sheet. CONCRETE IMPLEMENTING METHOD
[0015] Example one:
[0016] Reference Figure 1 The utility model high damping cable-stayed cable guide pipe waterproof device, including first protection sleeve 3, second protection sleeve 2, composite ring 5 constitute, first protection sleeve 3 and second protection sleeve 2 are all sleeved in the outside of cable-stayed cable 1, and first protection sleeve 3 has a section of wall and is outwardly protruding and forms annular protruding portion 30, the inside of annular protruding portion 30 is equipped with composite ring 5, and the outer wall of composite ring 5 is tightly combined with the inner wall of annular protruding portion 30, and the inner wall of composite ring 5 is tightly combined with cable-stayed cable 1, the composite ring 5 is composed of rubber ring 51 and metal sheet 52, the inside of the ring wall of rubber ring 51 is equipped with several metal sheets 52, and the best choice of metal sheet 52 is steel plate, and rubber ring 51 is in the compression state of radial pressure, second protection sleeve 2 has a part and is sleeved in the outside of first protection sleeve 3, and the gap between first protection sleeve 3 and cable-stayed cable 1, the gap between second protection sleeve 2 and cable-stayed cable 1, the gap between second protection sleeve 2 and first protection sleeve 3 are filled with anticorrosive foaming filling material 4.
[0017] Example two:
[0018] In order to further improve the waterproof effect, the annular protruding part 30 is close to the second protective sleeve 2, the outer diameter of the end of the annular protruding part 30 close to the second protective sleeve 2 is greater than the outer diameter of the end of the second protective sleeve 2 close to the annular protruding part 30, and the gap between the annular protruding part 30 and the second protective sleeve 2 is also filled with the anticorrosive foaming filler 4.
[0019] Embodiment three:
[0020] In order to further improve the waterproof effect, the second protective sleeve 2 is composed of a first sleeve 21, a tapered sleeve 22 and a third sleeve 23 connected in sequence, the first sleeve 21 is connected with the large-diameter end of the tapered sleeve 22, the third sleeve 23 is connected with the small-diameter end of the tapered sleeve 22, the first sleeve 21 is sleeved outside the first protective sleeve 3, the inner diameter of the first sleeve 21 is slightly greater than the outer diameter of the first protective sleeve 3, and the inner diameter of the third sleeve 23 is slightly greater than the outer diameter of the cable.
[0021] The working process of the utility model:
[0022] In the working process of the utility model high-damping cable conduit waterproof device, the first protective sleeve 3 and the composite ring 5 are sleeved on the cable 1, the radial pre-stress is applied to the composite ring 5 to make it compressive deformation, the composite ring is slowly pushed into the inside of the first protective sleeve 3 until it is completely clamped into the annular protruding part 30, the second protective sleeve 2 is sleeved on the cable 1, the anticorrosive foaming filler 4 is injected from the gap between the second protective sleeve 2 and the annular protruding part 30 until the anticorrosive foaming filler 4 fully overflows from the end of the third sleeve 23, and the anticorrosive foaming filler 4 is injected from the end of the first protective sleeve 3 away from the second protective sleeve 3 until the anticorrosive foaming filler 4 fully overflows.
[0023] The above embodiments are the description of the utility model and are not the limitation of the utility model, and any simple transformation of the utility model belongs to the protection range of the utility model.
Claims
1. High damping cable-stayed conduit waterproofing device, characterized by: The invention comprises a first protective sleeve (3), a second protective sleeve (2), and a composite ring (5), wherein the first protective sleeve (3) and the second protective sleeve (2) are both sleeved on the outside of the inclined cable (1), the first protective sleeve (3) has a section of the tube wall protruding outward to form an annular protrusion (30), the interior of the annular protrusion (30) is provided with a composite ring (5), the outer wall of the composite ring (5) is tightly fitted with the inner wall of the annular protrusion (30), the inner wall of the composite ring (5) is tightly fitted with the inclined cable (1), and the composite ring ( 5) is composed of a rubber ring (51) and a metal plate (52), a plurality of metal plates (52) are provided inside the ring wall of the rubber ring (51), the rubber ring (51) is in a compressed state, a portion of the second protective sleeve (2) is sheathed outside the first protective sleeve (3), the gap between the first protective sleeve (3) and the inclined cable (1), the gap between the second protective sleeve (2) and the inclined cable (1), and the gap between the second protective sleeve (2) and the first protective sleeve (3) are all filled with anti-corrosion foaming filler (4).
2. The high-damping stay cable conduit waterproof device according to claim 1, characterized in that: The metal plate (52) is a steel plate.
3. The high-damping stay cable conduit waterproof device according to claim 1, characterized in that: The annular protrusion (30) is close to the second protective sleeve (2), and the outer diameter of the end of the annular protrusion (30) close to the second protective sleeve (2) is larger than the outer diameter of the end of the second protective sleeve (2) close to the annular protrusion (30), and the gap between the annular protrusion (30) and the second protective sleeve (2) is also filled with an anti-corrosion foaming filler (4).
4. The high-damping stay cable conduit waterproof device according to claim 1, characterized in that: The second protective sleeve (2) is composed of a first sleeve (21), a tapered sleeve (22), and a third sleeve (23) connected in sequence. The first sleeve (21) is connected to the large-diameter end of the tapered sleeve (22), and the third sleeve (23) is connected to the small-diameter end of the tapered sleeve (22). The first sleeve (21) is sleeved on the outside of the first protective sleeve (3).