A wind-rain vibration suppression device for a cable-stayed bridge cable

Abstract

The utility model relates to a cable -stayed bridge inhaul cable's rain and wind vibration suppression device, including cable -stayed cable, the outside of cable -stayed cable is provided with dustproof mechanism and fixing piece, and dustproof mechanism is located the oblique top of fixing piece, the bottom side of fixing piece installs the shock absorber, and the bottom fixed connection of shock absorber has the connecting body, and the other end welding of connecting body has the rotating ball, and the outside rotation connection of rotating ball has the base ball cover, and the outside fixed connection of base ball cover has the vertical setting stand, compared with the prior art, the utility model has the beneficial effect that: through setting up the base ball cover in the top of stand, and the inside setting of base ball cover has the rotating ball that can multi -angle rotation, when the shock absorber is driven by fixing piece and carries out multi -angle rotation, it can make rotating ball and base ball cover multi -angle rotation, ensure that the shock absorber can multidirectional follow -up movement and carry out the shock attenuation, ensure the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of cable-stayed bridge cables, and in particular to a device for suppressing wind and rain vibration of cable-stayed bridge cables. Background Technology

[0002] Cable-stayed bridges, due to their large spans and flexible structures, are susceptible to vibrations caused by wind loads, earthquakes, and traffic, leading to bridge deck or cable vibrations. This is particularly noticeable in long-span cable-stayed bridges, where repeated vibrations can affect the fatigue life of the cables. Current solutions involve installing damping devices on the outside of the cables. These devices are typically secured to the outside of the cables using clamps, with shock absorbers installed below the clamps and their bases mounted on columns. While this approach effectively dampens vibrations, it presents the following technical challenges:

[0003] Firstly, when a cable stay cable vibrates, it does not simply vibrate up and down, but rather in multiple directions. While simply installing a fixed shock absorber can achieve the purpose of shock absorption, it is subjected to compressive forces from other directions, which affects the service life of the damping device. Therefore, in order to address the above problems, a wind and rain vibration damping device for cable stay bridges is proposed. Utility Model Content

[0004] In view of the above-mentioned problems in the prior art, the main purpose of this utility model is to provide a wind and rain vibration suppression device for cable-stayed bridge cables. When the shock absorber is driven by the fixing component to rotate at multiple angles, the rotating ball and the base ball sleeve will rotate at multiple angles, ensuring that the shock absorber can follow the movement in multiple directions and perform shock absorption, thus ensuring the service life of the device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a wind and rain vibration suppression device for cable-stayed bridge cables, comprising cable-stayed cables;

[0006] The outside of the stay cable is equipped with a dustproof mechanism and a fixing component, with the dustproof mechanism located diagonally above the fixing component;

[0007] A shock absorber is installed on one side of the bottom of the fastener. A connecting body is fixedly connected to the bottom of the shock absorber. A rotating ball is welded to the other end of the connecting body. A base ball sleeve is rotatably connected to the outside of the rotating ball. A vertically set column is fixedly connected to the outside of the base ball sleeve.

[0008] Furthermore, the rotating ball is spherically shaped, the base ball sleeve is hollow, and the side of the base ball sleeve facing the shock absorber is open.

[0009] Furthermore, the fastener includes two sets of fixing sleeves distributed vertically, the two sets of fixing sleeves are connected by bolts on their sides, a connecting plate is fixedly connected to the surface of the bottom fixing sleeve, a connecting platform is fixedly connected to the other end of the connecting plate, and a longitudinally arranged rotating shaft is installed inside the connecting platform.

[0010] Cable-stayed bridges, due to their large spans and flexible structures, are susceptible to wind loads, earthquakes, and traffic congestion, leading to bridge deck or cable vibrations, especially noticeable in long-span cable-stayed bridges. This back-and-forth vibration affects the fatigue life of the cables. Current solutions involve installing damping devices on the outside of the cables. These devices are typically fixed to the outside of the cables using clamps, with shock absorbers installed below the clamps and their bases mounted on columns. While this setup effectively dampens vibrations, it presents several technical challenges: First, cable-stayed cables vibrate not simply vertically but in multiple directions. Simply installing fixed shock absorbers, while achieving damping, exposes them to pressure from other directions, impacting the lifespan of the damping device. A solution is to install a base ball sleeve at the top of the column, with a rotating ball inside that can rotate at multiple angles. When the shock absorber rotates at multiple angles due to the fixed components, the rotating ball can also rotate at multiple angles with the base ball sleeve, ensuring the shock absorber can move in multiple directions and provide damping, thus extending the device's lifespan.

[0011] Furthermore, a protective cover is fixedly connected to the lower outer side of the shock absorber, and the protective cover is located outside the open part of the base ball sleeve.

[0012] Furthermore, the surface of the protective cover is provided with evenly distributed guide grooves, and the guide grooves are consistent with the direction of the inclined cable.

[0013] A protective cover is installed on the outside of the shock absorber to effectively prevent rainwater from seeping into the base ball sleeve during the rainy season, ensuring the stable use of the rotating ball and the base ball sleeve.

[0014] Furthermore, the dustproof mechanism includes two sets of protective sleeves set on the outside of the stay cable. The inside of the protective sleeve is set with an inclined stay cable. Fixing screws are set on the front and back sides of the protective sleeve. The fixing screws pass through the upper and lower ends of the protruding plate of the protective sleeve to fix the protective sleeve.

[0015] Furthermore, a dust cover is fixedly connected to one side of the protective cover, and the two dust covers are combined to form a bucket shape.

[0016] A protective sleeve, fixing screws, and dust cover are also installed on the outside of the stay cable. When the stay cable drives the fixing parts to vibrate back and forth, it can effectively prevent dust and impurities from entering between the stay cable and the fixing parts, reduce the wear of the stay cable, and at the same time, it can also serve as a rain shield to prevent rainwater from entering and ensure the normal use of the stay cable and the fixing parts.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] By setting a base ball sleeve at the top of the column, and setting a rotating ball that can rotate at multiple angles inside the base ball sleeve, when the shock absorber is driven by the fixed part to rotate at multiple angles, it can make the rotating ball and the base ball sleeve rotate at multiple angles, ensuring that the shock absorber can follow the movement in multiple directions and perform shock absorption, thus ensuring the service life of the device.

[0019] Furthermore, a protective cover is installed on the outside of the shock absorber to effectively prevent rainwater from seeping into the base ball sleeve during the rainy season, ensuring the stable use of the rotating ball and the base ball sleeve;

[0020] Protective sleeves, fixing screws, and dust covers are also installed on the outside of the stay cables. When the stay cables drive the fixing components to vibrate back and forth, they can effectively prevent dust and impurities from entering between the stay cables and the fixing components, reduce the wear of the stay cables, and at the same time, they can also serve to protect against rain, prevent rainwater from entering, and ensure the normal use of the stay cables and fixing components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the protective cover of this utility model;

[0023] Figure 3 This is a schematic diagram of the fastener structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the dustproof mechanism structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the protective cover structure of this utility model.

[0026] Legend: 1. Stay cable; 2. Fixing component; 201. Fixing sleeve; 202. Connecting plate; 203. Connecting platform; 3. Rotating shaft; 4. Shock absorber; 5. Protective cover; 6. Connecting body; 7. Rotating ball; 8. Base ball sleeve; 9. Column; 10. Protective sleeve; 11. Fixing screw; 12. Dust cover. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] Example

[0029] A device for suppressing wind and rain vibration of cables in a cable-stayed bridge, such as Figure 1-5 As shown, it includes cable 1;

[0030] A dustproof mechanism and a fixing component 2 are provided on the outer side of the cable 1, with the dustproof mechanism located diagonally above the fixing component 2;

[0031] A shock absorber 4 is installed on one side of the bottom of the fastener 2. A connecting body 6 is fixedly connected to the bottom of the shock absorber 4. A rotating ball 7 is welded to the other end of the connecting body 6. A base ball sleeve 8 is rotatably connected to the outside of the rotating ball 7. A vertically set column 9 is fixedly connected to the outside of the base ball sleeve 8.

[0032] The rotating ball 7 is spherical, the base ball sleeve 8 is hollow, and the side of the base ball sleeve 8 facing the shock absorber 4 is open.

[0033] The fastener 2 includes two sets of fastening sleeves 201 distributed vertically. The two sets of fastening sleeves 201 are connected by bolts on their sides. A connecting plate 202 is fixedly connected to the surface of the bottom fastening sleeve 201. A connecting platform 203 is fixedly connected to the other end of the connecting plate 202. A rotating shaft 3 arranged longitudinally is installed inside the connecting platform 203.

[0034] Cable-stayed bridges, due to their large spans and flexible structures, are susceptible to wind loads, earthquakes, and traffic disturbances, causing deck or cable vibrations, especially noticeable in long-span cable-stayed bridges. This back-and-forth vibration affects the fatigue life of the cables. Current solutions involve installing damping devices on the outside of the cables. These devices are typically secured to the outside of the cables with clamps, and dampers are installed below the clamps, with their bases mounted on columns. While this setup effectively dampens the cables, it presents several technical challenges: firstly, the cables do not... Instead of simple up-and-down vibration, it vibrates in multiple directions. While simply installing a fixed shock absorber can achieve the purpose of shock absorption, it also bears the compressive force in other directions, which affects the service life of the device. By setting a base ball sleeve 8 on the top of the column 9, and setting a rotating ball 7 that can rotate at multiple angles inside the base ball sleeve 8, when the shock absorber 4 is driven by the fixing part 2 to rotate at multiple angles, it can make the rotating ball 7 and the base ball sleeve 8 rotate at multiple angles, ensuring that the shock absorber 4 can follow the movement in multiple directions and perform shock absorption, thus ensuring the service life of the device.

[0035] The rotating ball 7 and the base ball sleeve 8 work together to allow the shock absorber 4 to move appropriately at multiple angles, reducing the pressure on the shock absorber 4 from multiple angles and ensuring the service life of the shock absorber 4. When fixing the cable 1, the upper and lower fixing sleeves 201 cover the outside of the cable 1 and are fixed by bolts. The rotating shaft 3 inside the connecting platform 203 can be connected to one end of the shock absorber 4 to achieve the purpose of suppressing the vibration of the cable 1.

[0036] A protective cover 5 is fixedly connected to the lower outer side of the shock absorber 4. The protective cover 5 is located outside the open part of the base ball sleeve 8.

[0037] The protective cover 5 has evenly distributed guide grooves on its surface, and the guide grooves are consistent with the direction of the inclined cable 1.

[0038] A protective cover 5 is provided on the outside of the shock absorber 4 to effectively prevent rainwater from seeping into the base ball sleeve 8 during the rainy season, ensuring the stable use of the rotating ball 7 and the base ball sleeve 8.

[0039] The surface of the protective cover 5 is provided with evenly distributed guide grooves, which can guide rainwater and allow it to flow smoothly downwards.

[0040] The dustproof mechanism includes two sets of protective sleeves 10 set outside the cable 1. The inclined cable 1 is set inside the protective sleeve 10. Fixing screws 11 are set on the front and rear sides of the protective sleeve 10. The fixing screws 11 pass through the upper and lower ends of the protruding plate of the protective sleeve 10 to fix the protective sleeve 10.

[0041] Dust covers 12 are fixedly connected to one side of the protective cover 10, and the two dust covers 12 are combined into a bucket shape.

[0042] A protective sleeve 10, a fixing screw 11, and a dust cover 12 are also provided on the outside of the cable 1. When the cable 1 drives the fixing part 2 to vibrate back and forth, the two sets of dust covers 12 can effectively prevent dust and impurities from entering between the cable 1 and the fixing part 2, reduce the wear of the cable 1, and at the same time, they can also serve as rain cover to prevent rainwater from entering and ensure the normal use of the cable 1 and the fixing part 2.

[0043] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for suppressing wind and rain vibration of cables in a cable-stayed bridge, characterized in that: Including the stay cables (1); A dustproof mechanism and a fixing member (2) are provided on the outside of the cable (1), with the dustproof mechanism located diagonally above the fixing member (2); A shock absorber (4) is installed on one side of the bottom of the fastener (2). A connecting body (6) is fixedly connected to the bottom of the shock absorber (4). A rotating ball (7) is welded to the other end of the connecting body (6). A base ball sleeve (8) is rotatably connected to the outside of the rotating ball (7). A vertically set column (9) is fixedly connected to the outside of the base ball sleeve (8).

2. The wind and rain vibration suppression device for cable-stayed bridge cables according to claim 1, characterized in that: The rotating ball (7) is spherical, the base ball sleeve (8) is hollow, and the side of the base ball sleeve (8) facing the shock absorber (4) is open.

3. The wind and rain vibration suppression device for cable-stayed bridge cables according to claim 1, characterized in that: A protective cover (5) is fixedly connected to the lower outer side of the shock absorber (4), and the protective cover (5) is located outside the open part of the base ball sleeve (8).

4. The wind and rain vibration suppression device for cable-stayed bridge cables according to claim 3, characterized in that: The protective cover (5) has uniformly distributed guide grooves on its surface, and the guide grooves are consistent with the inclined direction of the cable (1).

5. The wind and rain vibration suppression device for cable-stayed bridge cables according to claim 1, characterized in that: The fastener (2) includes two sets of fixed sleeves (201) distributed vertically. The two sets of fixed sleeves (201) are connected by bolts on their sides. A connecting plate (202) is fixedly connected to the surface of the bottom fixed sleeve (201). A connecting platform (203) is fixedly connected to the other end of the connecting plate (202). A rotating shaft (3) arranged longitudinally is installed inside the connecting platform (203).

6. The wind and rain vibration suppression device for cable-stayed bridge cables according to claim 1, characterized in that: The dustproof mechanism includes two sets of protective sleeves (10) set outside the cable (1). The inside of the protective sleeve (10) is an inclined cable (1). The front and rear sides of the protective sleeve (10) are provided with fixing screws (11). The fixing screws (11) pass through the upper and lower ends of the protruding plate of the protective sleeve (10) to fix the protective sleeve (10).

7. The wind and rain vibration suppression device for cable-stayed bridge cables according to claim 6, characterized in that: Dust covers (12) are fixedly connected to one side of the protective cover (10), and the two dust covers (12) are arranged in a bucket shape after being combined.

Images