Guy cable capable of resisting wind and rain vibration
By using a composite structure of an inner layer and a water-blocking outer layer, the path for the formation of a water film on the cable surface is disrupted, thus solving the problem of cable vibration caused by wind and rain. This achieves a simple, maintenance-free vibration reduction effect and extends the service life of the cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG KINEX HARDWARE PROD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, cables are prone to forming water channels under wind and rain, leading to wind and rain vibration, which causes fatigue damage and corrosion risk to the steel wires. Furthermore, traditional vibration damping devices are complex to install, have high maintenance costs, and poor long-term reliability.
It adopts a composite structure of inner layer and water-blocking surface layer. The inner layer is composed of high-strength steel wire and reinforcing steel wire. The water-blocking surface layer forms a continuous groove or protrusion structure through the spiral twisting of main steel wire and auxiliary steel wire, which disrupts the water film formation path and stabilizes the aerodynamic force on the cable surface.
It effectively suppresses wind and rain vibration, extends cable life, reduces installation and maintenance costs, improves structural safety and durability, and avoids the adverse effects of added mass on dynamic characteristics.
Smart Images
Figure CN224186606U_ABST
Abstract
Description
Wind and rain resistant cables Technical Field
[0001] This utility model relates to the field of building technology, and in particular to a cable for resisting wind and rain vibration. Background Technology
[0002] As crucial load-bearing components in long-span bridges and buildings, cables are constantly exposed to wind and rain, making vibration a particularly prominent issue. Under the combined effects of wind and rain, continuous water channels easily form on the cable surface, interacting with the surrounding airflow and inducing significant wind-rain vibration. This vibration not only accelerates fatigue damage to the steel wires and reduces the cable's service life but can also lead to the propagation of microcracks due to repeated stress, exacerbating corrosion risks. Long-term wind-rain vibration can significantly impact the structural safety and durability of cables, even threatening the overall stability of the project.
[0003] Currently, measures to suppress cable-driven wind and rain vibration mainly focus on passive vibration reduction, such as installing damping shock absorbers or hydraulic shock absorbers at both ends of the cable. While these devices reduce amplitude by consuming vibrational energy and have some effect, they suffer from limitations such as complex installation, high maintenance costs, and inability to fundamentally prevent the formation of wind and rain vibration. Furthermore, the performance of shock absorbers is susceptible to environmental aging, posing challenges to their long-term reliability. Summary of the Invention
[0004] Based on this, the purpose of this utility model is to provide a cable that is resistant to wind and rain vibration, which suppresses the formation of water channels through structural optimization and improves the structural safety and durability of the cable.
[0005] The present invention adopts the following technical solution:
[0006] A type of cable resistant to wind and rain vibration, comprising, from the inside out:
[0007] Inner layer; and
[0008] The water-blocking surface layer includes multiple main steel wires and auxiliary steel wires, which are spirally twisted on the outside of the inner layer. The thickness of the cross-section of the auxiliary steel wire along the radial direction of the inner layer is less than the thickness of the cross-section of the main steel wire along the radial direction of the inner layer, so that a continuous groove extending along the spiral direction of the auxiliary steel wire is formed on the outer surface of the water-blocking surface layer, which is used to disrupt the water film formation path on the water-blocking surface layer.
[0009] Preferably, the number of auxiliary steel wires is at least two.
[0010] Preferably, the auxiliary steel wires are evenly spaced among the multiple main steel wires.
[0011] Preferably, the main steel wire includes a first steel wire body, a first overlapping arm, and a second overlapping arm; the first overlapping arm and the second overlapping arm extend from the first steel wire body to both sides, so that the cross-sectional shape of the main steel wire is Z-shaped; the first overlapping arm and the side of the first steel wire body form a first overlapping surface, and the second overlapping arm and the side of the second steel wire body form a second overlapping surface.
[0012] The auxiliary steel wire includes a second steel wire body, a third overlapping arm, and a fourth overlapping arm; the third overlapping arm and the fourth overlapping arm extend from the second steel wire body to both sides, so that the cross-sectional shape of the auxiliary steel wire is Z-shaped; the third overlapping arm forms a third overlapping surface with the side of the second steel wire body, and the fourth overlapping arm forms a fourth overlapping surface with the side of the second steel wire body.
[0013] Preferably, the inner layer includes a load-bearing core layer and a transition reinforcement layer, the transition reinforcement layer covering the outside of the load-bearing core layer, and the water-blocking surface layer covering the outside of the transition reinforcement layer.
[0014] Preferably, the load-bearing core layer comprises multiple high-strength steel wires with a circular cross-sectional shape, and the high-strength steel wires are twisted in a spiral shape.
[0015] Preferably, the transition reinforcement layer includes multiple reinforcing steel wires with a Z-shaped cross-section, and each reinforcing steel wire has a splicing surface on both sides; the splicing surfaces of adjacent reinforcing steel wires are spliced together.
[0016] A type of cable resistant to wind and rain vibration, comprising, from the inside out:
[0017] Inner layer; and
[0018] The water-blocking surface layer includes multiple main steel wires and auxiliary steel wires, which are spirally twisted on the outside of the inner layer. The thickness of the cross-section of the auxiliary steel wire along the radial direction of the inner layer is greater than that of the cross-section of the main steel wire along the radial direction of the inner layer, so that the outer surface of the water-blocking surface layer forms a continuous protrusion structure extending along the spiral direction of the auxiliary steel wires, which is used to disrupt the water film formation path on the water-blocking surface layer.
[0019] Preferably, the number of auxiliary steel wires is at least two.
[0020] Preferably, the auxiliary steel wires are evenly spaced among the multiple main steel wires.
[0021] The beneficial effects of this utility model are as follows:
[0022] This utility model relates to a wind and rain vibration resistant cable, which is equipped with an inner layer and a water-blocking surface layer. The water-blocking surface layer, through the main and auxiliary steel wires with different radial thicknesses, forms a continuous groove or protrusion structure, effectively disrupting the formation path of the water film on the cable surface, stabilizing the aerodynamic forces on the cable surface, thereby preventing wind and rain vibration, achieving good vibration reduction effect, and helping to extend the service life of cable in cable-stayed structures. Compared with traditional damper vibration reduction methods, it has significant advantages such as simple structure, maintenance-free operation, and long service life, while avoiding the adverse effects of added mass on the dynamic characteristics of the cable system, providing a brand-new solution for the wind and rain vibration resistant design of large bridge cables. Both the main and auxiliary steel wires use Z-shaped cross-section steel wires, which facilitates interlocking and ensures the integrity and structural strength of the water-blocking surface layer. The inner layer adopts a composite structure of a load-bearing core layer and a transition reinforcement layer, ensuring the mechanical properties of the cable while providing a stable installation foundation for the water-blocking surface layer. Attached Figure Description
[0023] Figure 1 is a schematic diagram of the structure of the wind and rain resistant cable of the first embodiment of this utility model;
[0024] Figure 2 is a schematic diagram of the cross-sectional structure of the cable in Figure 1;
[0025] Figure 3 is an enlarged schematic diagram of the structure of circle A in Figure 2;
[0026] Figure 4 is a schematic diagram of the reinforcing steel wire in this utility model;
[0027] Figure 5 is a schematic diagram of the main steel wire in this utility model;
[0028] Figure 6 is a schematic diagram of the auxiliary steel wire in this utility model;
[0029] Figure 7 is a schematic diagram of the cross-sectional structure of the wind and rain resistant cable according to the first embodiment of this utility model;
[0030] Figure 8 is an enlarged schematic diagram of the structure of circle B in Figure 7.
[0031] Numbering on the map:
[0032] 10-Inner layer;
[0033] 20 - Load-bearing core layer; 21 - High-strength steel wire;
[0034] 30 - Transition reinforcement layer; 31 - Reinforcing steel wire; 32 - Joint surface;
[0035] 40 - Water-resistant surface layer;
[0036] 41-Main steel wire; 411-First steel wire body; 412-First lap arm; 413-Second lap arm; 414-First lap surface; 415-Second lap surface;
[0037] 42-Secondary steel wire; 421-Secondary steel wire body; 422-Third lap arm; 423-Fourth lap arm; 424-Third lap surface; 425-Fourth lap surface;
[0038] 41a - Main steel wire; 42a - Secondary steel wire. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] As shown in Figures 1 to 6, the cable for resisting wind and rain vibration according to the first embodiment of this application includes an inner layer 10 and a water-blocking surface layer 40 from the inside out. The inner layer 10 plays a major load-bearing role, ensuring the mechanical properties of the cable, and provides an installation foundation for the water-blocking surface layer 40. The function of the water-blocking surface layer 40 is to disrupt the formation path of the water film on the cable surface, fundamentally inhibiting the occurrence of wind and rain vibration, effectively avoiding fatigue damage to the cable wires, reducing the risk of corrosion, and extending the service life of the cable. In practical applications, there is no need to use damping shock absorbers or hydraulic shock absorbers, reducing installation and maintenance costs.
[0043] Please refer to Figures 1 and 2. The inner layer 10 includes a load-bearing core layer 20 and a transition reinforcement layer 30. The transition reinforcement layer 30 covers the outside of the load-bearing core layer 20, and the water-blocking surface layer 40 covers the outside of the transition reinforcement layer 30.
[0044] Specifically, the load-bearing core layer 20 is made of multiple high-strength steel wires 21 twisted in a spiral. The cross-sectional shape of the high-strength steel wires 21 is circular. The circular cross-section structure has the characteristics of uniform stress distribution and high tensile strength, which enables the load-bearing core layer 20 to effectively bear the main load of the cable.
[0045] Specifically, the transition reinforcement layer 30 consists of multiple reinforcing steel wires 31 spirally twisted around the outside of the load-bearing core layer 20. The cross-sectional shape of the reinforcing steel wires 31 is Z-shaped. As shown in Figure 4, both sides of the reinforcing steel wires 31 have interlocking surfaces 32, with the interlocking surfaces 32 of adjacent reinforcing steel wires 31 interlocking with each other. This interlocking of the interlocking surfaces 32 of adjacent reinforcing steel wires 31 creates a mechanical interlocking effect, preventing interlayer slippage and providing an installation positioning reference for the outer water-blocking surface layer 40, thus enabling the cable to achieve excellent fatigue resistance and structural stability. Furthermore, as shown in Figure 2, in this embodiment, two transition reinforcement layers 30 are provided, effectively enhancing the structural strength of the cable. It should be noted that the number of transition reinforcement layers 30 can be adjusted according to different cable load-bearing parameters to meet different construction requirements.
[0046] Referring to Figure 2, the water-blocking surface layer 40 includes multiple main steel wires 41 and auxiliary steel wires 42, which are spirally twisted on the outside of the inner layer 10. Specifically, as shown in Figure 3, the thickness (H1) of the cross-section of the auxiliary steel wire 42 along the radial direction of the inner layer 10 is smaller than the thickness (H2) of the cross-section of the main steel wire 41 along the radial direction of the inner layer 10, resulting in a continuous groove extending along the spiral direction of the auxiliary steel wire 42 on the outer surface of the water-blocking surface layer 40. Using this structure, the surface of the cable is modified to prevent the formation of water channels on the cable surface, giving the cable a vibration damping effect and effectively avoiding fatigue and corrosion problems caused by wind and rain vibration. This structure significantly reduces cable vibration and effectively extends the service life of the cable.
[0047] Specifically, there are at least two auxiliary steel wires 42, which are evenly spaced among the multiple main steel wires 41. This means that at least two continuous grooves are formed on the cable surface, and these continuous grooves are evenly distributed on the cable surface. This enhances the function of suppressing water channel formation, further preventing wind and rain vibration, and extending the service life of the cable.
[0048] Specifically, as shown in Figure 5, the main steel wire 41 includes a first steel wire body 411, a first overlapping arm 412, and a second overlapping arm 413; the first overlapping arm 412 and the second overlapping arm 413 extend from the first steel wire body 411 to both sides, so that the cross-sectional shape of the main steel wire 41 is Z-shaped; the first overlapping arm 412 and the side of the first steel wire body 411 form a first overlapping surface 414, and the second overlapping arm 413 and the side of the second steel wire body 421 form a second overlapping surface 415. As shown in Figure 6, the auxiliary steel wire 42 includes a second steel wire body 421, a third overlapping arm 422, and a fourth overlapping arm 423. The third overlapping arm 422 and the fourth overlapping arm 423 extend from the second steel wire body 421 to both sides, so that the cross-sectional shape of the auxiliary steel wire 42 is Z-shaped. The third overlapping arm 422 and the side of the second steel wire body 421 form a third overlapping surface 424, and the fourth overlapping arm 423 and the side of the second steel wire body 421 form a fourth overlapping surface 425.
[0049] Specifically, when the sides of the two main steel wires 41 overlap each other, the first overlapping arm 412 of the main steel wire 41 engages with the second overlapping surface 415 of the adjacent main steel wire 41, and the second overlapping arm 413 of the main steel wire 41 engages with the first overlapping surface 414 of the adjacent main steel wire 41. This overlapping structure forms a mechanical interlock, which improves the connection strength and stability.
[0050] Specifically, when the main steel wire 41 and the auxiliary steel wire 42 overlap each other, the third overlapping arm 422 on one side of the auxiliary steel wire 42 engages with the second overlapping surface 415 of the main steel wire 41 located on the same side as the auxiliary steel wire 42, and the fourth overlapping arm 423 on the other side of the auxiliary steel wire 42 engages with the first overlapping surface 414 of the main steel wire 41 located on the same side as the auxiliary steel wire 42. This forms a mechanical interlock, which improves the connection strength and stability.
[0051] As shown in Figures 7 and 8, this is a cable for resisting wind and rain vibration according to the second embodiment of this application. The difference from the first embodiment is that the thicknesses of the main steel wire 41a and the auxiliary steel wire 42a are different. Specifically, the thickness (H3) of the cross-section of the auxiliary steel wire 42a along the radial direction of the inner layer 10 is greater than the thickness (H4) of the cross-section of the main steel wire 41a along the radial direction of the inner layer 10, so that a continuous protrusion structure extending along the spiral direction of the auxiliary steel wire 42a is formed on the outer surface of the water-blocking surface layer 40, which is used to disrupt the water film formation path.
[0052] Compared to existing technologies, the wind and rain vibration resistant cable of this invention features an inner layer 10 and a water-blocking surface layer 40. The water-blocking surface layer 40, through main steel wires 41 and auxiliary steel wires 42 with varying radial thicknesses, forms a continuous groove or protrusion structure, effectively disrupting the formation path of the water film on the cable surface and stabilizing the aerodynamic forces on the cable surface. This prevents wind and rain vibration, resulting in good vibration reduction and extending the lifespan of the cable in the cable-stayed structure. Compared to traditional damper vibration reduction methods, it has significant advantages such as simple structure, maintenance-free operation, and long lifespan. It also avoids the adverse effects of added mass on the dynamic characteristics of the cable system, providing a novel solution for the wind and rain vibration resistant design of large bridge cables. Both the main steel wires 41 and auxiliary steel wires 42 use Z-shaped cross-section steel wires, which facilitates overlapping and ensures the integrity and structural strength of the water-blocking surface layer 40. The inner layer 10 adopts a composite structure of a load-bearing core layer 20 and a transition reinforcement layer 30, ensuring the mechanical properties of the cable while providing a stable installation foundation for the water-blocking surface layer 40.
[0053] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.
Claims
1. A cable resistant to wind and rain vibration, characterized in that, From the inside out, it includes: an inner layer; and a water-blocking surface layer. The water-blocking surface layer includes multiple main steel wires and auxiliary steel wires. The main steel wires and auxiliary steel wires are twisted in a spiral shape on the outside of the inner layer. The thickness of the cross section of the auxiliary steel wire along the radial direction of the inner layer is less than the thickness of the cross section of the main steel wire along the radial direction of the inner layer, so that a continuous groove extending along the spiral direction of the auxiliary steel wire is formed on the outer surface of the water-blocking surface layer, which is used to disrupt the water film formation path on the water-blocking surface layer.
2. The wind and rain resistant cable according to claim 1, characterized in that, The number of auxiliary steel wires is at least two.
3. The wind and rain resistant cable according to claim 2, characterized in that, The auxiliary steel wires are evenly spaced among the multiple main steel wires.
4. The wind and rain resistant cable according to claim 3, characterized in that, The main steel wire includes a first steel wire body, a first overlapping arm, and a second overlapping arm; the first overlapping arm and the second overlapping arm extend from the first steel wire body to both sides, so that the cross-sectional shape of the main steel wire is Z-shaped; the first overlapping arm and the side of the first steel wire body form a first overlapping surface, and the second overlapping arm and the side of the second steel wire body form a second overlapping surface; the auxiliary steel wire includes a second steel wire body, a third overlapping arm, and a fourth overlapping arm; the third overlapping arm and the fourth overlapping arm extend from the second steel wire body to both sides, so that the cross-sectional shape of the auxiliary steel wire is Z-shaped; the third overlapping arm and the side of the second steel wire body form a third overlapping surface, and the fourth overlapping arm and the side of the second steel wire body form a fourth overlapping surface.
5. The wind and rain resistant cable according to claim 1, characterized in that, The inner layer includes a load-bearing core layer and a transition reinforcement layer. The transition reinforcement layer covers the outside of the load-bearing core layer, and the water-blocking surface layer covers the outside of the transition reinforcement layer.
6. The wind and rain resistant cable according to claim 5, characterized in that, The load-bearing core layer comprises multiple high-strength steel wires with circular cross-sections, which are twisted in a spiral shape.
7. The wind and rain resistant cable according to claim 5, characterized in that, The transition reinforcement layer includes multiple reinforcing steel wires with a Z-shaped cross-section, and each reinforcing steel wire has a splicing surface on both sides; the splicing surfaces of adjacent reinforcing steel wires are spliced together.
8. A cable resistant to wind and rain vibration, characterized in that, From the inside out, it includes: an inner layer; and a water-blocking surface layer. The water-blocking surface layer includes multiple main steel wires and auxiliary steel wires. The main steel wires and auxiliary steel wires are twisted in a spiral shape on the outside of the inner layer. The thickness of the cross-section of the auxiliary steel wire along the radial direction of the inner layer is greater than the thickness of the cross-section of the main steel wire along the radial direction of the inner layer, so that the outer surface of the water-blocking surface layer forms a continuous protrusion structure extending along the spiral direction of the auxiliary steel wires, which is used to disrupt the water film formation path on the water-blocking surface layer.
9. The wind and rain resistant cable according to claim 8, characterized in that, The number of auxiliary steel wires is at least two.
10. The wind and rain resistant cable according to claim 8, characterized in that, The auxiliary steel wires are evenly spaced among the multiple main steel wires.