Stay cable damping device and stay cable damping system

Abstract

The invention relates to a stay cable damping device and a stay cable damping system, the stay cable damping device comprises a damping adjusting mechanism, the damping adjusting mechanism comprises an inner sleeve and an outer connecting cylinder, and the outer connecting cylinder is arranged on the periphery of the inner sleeve at intervals in a surrounding mode; the inner sleeve and the outer connecting cylinder are coaxially arranged, the inner sleeve and the outer connecting cylinder are connected through a plurality of hydraulic damping mechanisms, the hydraulic damping mechanisms are arranged on the periphery of the inner sleeve in a surrounding mode, and the inner sleeve is used for being fixedly arranged on the stay cable in a sleeving mode; and the lasso mechanism is fixed to the outer connecting cylinder, and the lasso mechanism is used for being fixed to the main beam. The inner sleeve is fixed to the stay cable, the multiple hydraulic damping mechanisms are arranged between the outer connecting cylinder and the inner sleeve, damping of the stay cable can be achieved under damping of the hydraulic damping mechanisms, effective additional damping is provided for the stay cable, and the problems that in the related technology, when rubber is compressed and deformed, the additional rigidity is large, and the service life is long are solved. And adverse effects on the vibration reduction effect of the stay cable are also generated.

Description

Technical Field

[0001] The present application relates to the field of bridge engineering, and in particular to a stay cable damping device and a stay cable damping system. Background Art

[0002] In a cable-stayed bridge structure, the cable is one of the most important load-bearing components. Due to its slender structural characteristics, it is easy to produce large vibrations under wind load or vehicle load conditions. Large vibrations will not only destroy the anti-corrosion sealing system of the cable, but also accelerate the fatigue damage of the cable, affecting its service life.

[0003] In the related art, in order to suppress the large vibration of the inclined cable, a damper is installed on the inclined cable. The damper is usually a rubber damper. The rubber damper has a low damping efficiency due to the compression deformation of the rubber, and has a limited vibration reduction effect on the inclined cable. At the same time, the additional stiffness of the rubber is large when it is compressed and deformed, which will also have an adverse effect on the vibration reduction effect of the inclined cable. Summary of the invention

[0004] The present application provides a cable-stayed damping device and a cable-stayed damping system, which can solve the technical problems in the related art that the rubber damper has low damping efficiency due to the compression deformation of the rubber, and the additional stiffness is large when the rubber is compressed and deformed, which will also have an adverse effect on the vibration reduction effect of the cable.

[0005] In a first aspect, an embodiment of the present application provides a cable-stayed damping device, comprising: a damping adjustment mechanism, the damping adjustment mechanism comprising an inner sleeve and an outer connecting tube spaced around the outer circumference of the inner sleeve; the inner sleeve and the outer connecting tube are coaxially arranged, and the inner sleeve and the outer connecting tube are connected by a plurality of hydraulic damping mechanisms, the plurality of hydraulic damping mechanisms are arranged around the outer circumference of the inner sleeve, and the inner sleeve is used to be fixedly sleeved on the cable; a lasso mechanism, the lasso mechanism is fixed to the outer connecting tube, and the lasso mechanism is used to be fixed to the main beam.

[0006] In combination with the first aspect, in one embodiment, each of the hydraulic damping mechanisms includes: a hydraulic damper, wherein both ends of the hydraulic damper are hinged with ball joints; at least two connecting plates, wherein at least two connecting plates are respectively fixed to the ball joints at both ends of the hydraulic damper, and the connecting plate at one end of the hydraulic damper is fixed to the outer wall of the inner sleeve, and the connecting plate at the other end is fixed to the inner wall of the outer connecting sleeve.

[0007] In combination with the first aspect, in one embodiment, the outer connecting sleeve includes: an outer sleeve, which is sleeved on the outer circumference of the inner sleeve, and the outer sleeve is coaxially arranged with the inner sleeve, and a stiffening plate is fixed to the outer circumference of the outer sleeve; a first flange, the first flange is fixed to the outer sleeve, the lasso mechanism is located on the side of the first flange away from the outer sleeve, and the first flange is fixed to the lasso mechanism.

[0008] In combination with the first aspect, in one implementation, the first flange and the lasso mechanism are connected via a displacement adjustment assembly.

[0009] In combination with the first aspect, in one embodiment, the first flange is provided with a plurality of first radial holes arranged at intervals; the lasso mechanism includes a rope sleeve and a second flange fixed to the rope sleeve, the second flange is provided with a plurality of second radial holes arranged at intervals, and each second radial hole is arranged corresponding to the first radial hole; the displacement adjustment assembly includes a connecting ring and a third flange and a fourth flange respectively fixed to both ends of the connecting ring, the third flange and the fourth flange are both provided with a plurality of annular holes arranged at intervals, the annular holes of the third flange and the first radial holes of the first flange are arranged correspondingly and are penetrated by fixing bolts, and the annular holes of the fourth flange and the second radial holes of the second flange are arranged correspondingly and are penetrated by fixing bolts.

[0010] In combination with the first aspect, in one embodiment, the damping adjustment mechanism includes a plurality of damping buffer components, the plurality of damping buffer components are arranged in the outer sleeve at intervals along the circumference of the outer sleeve, and the damping buffer components and the inner sleeve are arranged at intervals along the radial direction of the inner sleeve.

[0011] In combination with the first aspect, in one embodiment, each of the damping buffer components includes: a connecting screw, the connecting screw being threaded through the outer sleeve, and the axis of the connecting screw extending radially along the outer sleeve; a rubber buffer block, the rubber buffer block being installed at one end of the connecting screw close to the inner sleeve, and the rubber buffer block being spaced apart from the inner sleeve.

[0012] In combination with the first aspect, in one embodiment, the rubber buffer block is detachably mounted on the connecting screw, and the inner sleeve is provided with a plurality of threaded holes, each of which is provided on an extension line of the axis of the connecting screw.

[0013] In combination with the first aspect, in one embodiment, the inner sleeve and the outer sleeve are both configured as regular hexagonal structures, and each side wall of the inner sleeve and the outer sleeve is configured correspondingly, and each side wall of the inner sleeve and the outer sleeve is connected through the connecting plate and the hydraulic damper.

[0014] In a second aspect, an embodiment of the present application provides a stay cable damping system, which includes: a stay cable, the outer periphery of which is mounted the above-mentioned stay cable damping device, and the stay cable is fixed to the inner sleeve by a cable clamp.

[0015] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0016] By using an inner sleeve to be fixed to the inclined cable, and then arranging a plurality of hydraulic damping mechanisms between the outer connecting sleeve and the inner sleeve, the vibration reduction of the inclined cable can be achieved under the damping of the hydraulic damping mechanism, providing effective additional damping for the inclined cable, and the outer connecting sleeve is also connected to the lasso mechanism, one end of the lasso mechanism is fixed on the main beam, so that the lasso mechanism can anchor the inclined cable, thereby solving the technical problem in the related art that the additional stiffness of the rubber is large when it is compressed and deformed, which will also have an adverse effect on the vibration reduction effect of the inclined cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a stay cable damping system provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the top view of the structure of the cable-stayed damping system provided in an embodiment of the present application;

[0020] Figure 3 A cross-sectional view of a stay cable damping system provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of the external connecting tube provided in an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of the inner sleeve provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of the three-dimensional structure of the hydraulic damping mechanism provided in an embodiment of the present application;

[0024] Figure 7 A schematic diagram of the three-dimensional structure of a displacement adjustment assembly provided in an embodiment of the present application;

[0025] Figure 8 A schematic diagram of the three-dimensional structure of the lasso mechanism provided in an embodiment of the present application.

[0026] In the figure:

[0027] 1. Damping adjustment mechanism;

[0028] 11. inner sleeve; 111. threaded hole;

[0029] 12. External connecting cylinder; 121. External sleeve; 122. Stiffening plate; 123. First flange; 1231. First radial hole;

[0030] 13. Hydraulic damping mechanism; 131. Hydraulic damper; 132. Ball joint; 133. Connecting plate;

[0031] 14. Damping buffer assembly; 141. Connecting screw rod; 142. Rubber buffer block;

[0032] 2. lasso mechanism; 21. cable sleeve; 22. second flange; 221. second radial hole; 23. stiffener;

[0033] 3. Stay cables;

[0034] 4. Displacement adjustment assembly; 41. Connecting ring; 42. Third flange; 43. Fourth flange; 44. Annular hole; 45. Fixing bolt; 46. Stiffening rib;

[0035] 5. Rope clamp. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] An embodiment of the present application provides a cable-stayed damping device. In the related art, rubber dampers have low damping efficiency due to compression deformation of rubber, and the additional stiffness is large when the rubber is compressed and deformed, which also has a technical problem of adversely affecting the vibration reduction effect of the cable.

[0038] See also Figure 1As shown, a cable-stayed damping device provided by an embodiment of the present application may include: a damping adjustment mechanism 1, wherein the damping adjustment mechanism 1 includes an inner sleeve 11 and an outer connecting tube 12 spaced around the outer periphery of the inner sleeve 11; the inner sleeve 11 and the outer connecting tube 12 are coaxially arranged, and the inner sleeve 11 and the outer connecting tube 12 are connected by a plurality of hydraulic damping mechanisms 13, wherein the plurality of hydraulic damping mechanisms 13 are arranged around the outer periphery of the inner sleeve 11, and the inner sleeve 11 is used to be fixedly sleeved on the cable 3, that is, each hydraulic damping mechanism 13 extends radially along the inner sleeve 11 to connect the inner sleeve 11 and the outer connecting tube 12; a lasso mechanism 2, wherein the lasso mechanism 2 is fixed to the outer connecting tube 12, and the lasso mechanism 2 is used to be fixed to the main beam, and the lasso mechanism 2 may be sleeved on the outer periphery of the cable 3 to protect the cable 3.

[0039] The embodiment of the present application uses an inner sleeve 11 to be fixed to the inclined cable 3. The inner sleeve 11 can be coaxially arranged with the inclined cable 3, and then a plurality of hydraulic damping mechanisms 13 are arranged between the outer connecting tube 12 and the inner sleeve 11, that is, a built-in damping structure is formed. The hydraulic damping mechanism 13 has a good energy absorption and vibration reduction effect. At this time, with the cooperation of the plurality of hydraulic damping mechanisms 13, when the inclined cable 3 vibrates, the vibration can be better absorbed to achieve shock absorption of the inclined cable 3 and provide effective additional damping for the inclined cable 3; the hydraulic damping mechanism 13 is arranged between the inner sleeve 11 and the outer connecting tube 12 and can also occupy a smaller space, that is, the hydraulic damping mechanism 13 at this time is small in size, easy to install and maintain, and can better adapt to the bridge landscape.

[0040] Furthermore, the outer connecting tube 12 is also connected to the lasso mechanism 2, one end of which is fixed on the main beam, so that the lasso mechanism 2 can anchor the inclined cable, and the inner sleeve 11 can be arranged with the lasso mechanism 2 along the axial direction of the inclined cable 3, so that they are respectively arranged around the circumference of the inclined cable 3 while effectively avoiding overlap along the radial direction of the inclined cable 3, effectively avoiding waste of resources, and connecting multiple hydraulic damping mechanisms 13 to the circumference of the inner sleeve 11 and the outer connecting tube 12. The technical problem in the related art that the additional stiffness of the rubber is large when it is compressed and deformed, which will also have an adverse effect on the vibration reduction effect of the inclined cable 3 is solved.

[0041] See also Figure 6As shown, in some optional embodiments, each of the hydraulic damping mechanisms 13 includes: a hydraulic damper 131, wherein both ends of the hydraulic damper 131 are hinged with ball joints 132; at least two connecting plates 133, wherein at least two connecting plates 133 are respectively fixed to the ball joints 132 at both ends of the hydraulic damper 131, and the connecting plate 133 at one end of the hydraulic damper 131 is fixed to the outer wall of the inner sleeve 11, and the connecting plate 133 at the other end is fixed to the inner wall of the outer connecting cylinder 12, that is, connecting plates 133 are fixed at the ball joints 132 at both ends of the hydraulic damper 131, and the ball joints 132 are respectively connected to the outer wall of the outer sleeve 11. Each connecting plate 133 is fixedly connected. When the connecting plates 133 are respectively installed on the inner sleeve 11 and the outer connecting tube 12, it means that the ball joint 132 is respectively fixed to the inner sleeve 11 and the outer connecting tube 12. The ball joints 132 at both ends of the hydraulic damper 131 are respectively hinged to the hydraulic damper 131, which means that relative movement can occur between the hydraulic damper 131 and the ball joint 132. In addition to the radial extension along the inner sleeve 11 to suppress the vibration of the inclined cable 3 along the radial direction of the inner sleeve 11, the hydraulic damper 131 can also work more freely and flexibly in all directions of space to suppress the vibration of the inclined cable 3 along the axial direction of the inner sleeve 11 and other multiple dimensions. In the embodiment of the present application, by hingedly connecting the hydraulic damper 131 to the ball joint 132, the hydraulic damping mechanism 13 can not only suppress the vibration along the radial direction of the inclined cable 3, but also perform vibration reduction and vibration suppression in all directions of space.

[0042] Preferably, the hydraulic damper 131 may be a cylinder pore viscous damper, whose viscous medium has a certain viscosity, low compressibility, low volatility, and reliable chemical stability and temperature stability. The viscous medium in the embodiment of the present application is methyl silicone oil.

[0043] Furthermore, the ball joints 132 at both ends of the hydraulic damper 131 are respectively connected by connecting plates 133, which can facilitate the replacement of the hydraulic damper 131 when the hydraulic damper 131 is damaged. Each connecting plate 133 can be provided with a plurality of connecting holes, and the side walls of the inner sleeve 11 and the outer connecting tube 12 are also pre-opened with a plurality of corresponding connecting holes. When the hydraulic damper 131 needs to be installed between the inner sleeve 11 and the outer connecting tube 12, the connecting holes on the connecting plate 133 can be aligned with the connecting holes on the outer connecting tube 12 and the inner sleeve 11, thereby increasing the installation efficiency and reducing the installation difficulty.

[0044] See also Figure 2 and Figure 4As shown, in some optional embodiments, the outer connecting sleeve 12 may include: an outer sleeve 121, the outer sleeve 121 is sleeved on the outer periphery of the inner sleeve 11, and the outer sleeve 121 is coaxially arranged with the inner sleeve 11, and a stiffening plate 122 is fixed to the outer periphery of the outer sleeve 121; a first flange 123, the first flange 123 is fixed to the outer sleeve 121, the lasso mechanism 2 is located on the side of the first flange 123 away from the outer sleeve 121, and the first flange 123 is fixed to the lasso mechanism 2, the first flange 123 can be directly fixed to the lasso mechanism 2, or it can be indirectly fixed through other mechanisms, when directly fixed, the first flange 123 and the lasso mechanism 2 can be fixed by bolt connection, or it can be other connection methods such as welding. In the embodiment of the present application, the hydraulic damper 131 is located between the outer sleeve 121 and the inner sleeve 11, and the stiffening plate 122 on the outer periphery of the outer sleeve 121 is welded to the outer periphery of the outer sleeve 121 on one side, and can also be welded and fixed to the first flange 123, thereby enhancing the overall support of the outer sleeve 121.

[0045] In some optional embodiments, the first flange 123 and the lasso mechanism 2 are connected via a displacement adjustment component 4. In the embodiment of the present application, the first flange 123 and the lasso mechanism 2 are indirectly fixed via the displacement adjustment component 4. The positions of the first flange 123 and the lasso mechanism 2 along the radial direction and other directions of the inclined cable 3 can be adjusted via the displacement adjustment component 4. Since the first flange 123 and the outer sleeve 121 are relatively fixed, the relative position of the outer sleeve 121 and the inclined cable 3 can be adjusted, so that the hydraulic damper 131 is in a stress-free state in the initial state.

[0046] See also Figure 8As shown, in some optional embodiments, the first flange 123 is provided with a plurality of first radial holes 1231 arranged at intervals; the lasso mechanism 2 includes a cable sleeve 21 and a second flange 22 fixed to the cable sleeve 21, the second flange 22 is provided with a plurality of second radial holes 221 arranged at intervals, and each second radial hole 221 is arranged correspondingly to the first radial hole 1231; the displacement adjustment component 4 includes a connecting ring 41 and a third flange 42 and a fourth flange 43 respectively fixed to both ends of the connecting ring 41, the third flange 42 and the fourth flange 43 are both provided with a plurality of annular holes 44 arranged at intervals, the annular holes 44 of the third flange 42 and the first radial holes 1231 of the first flange 123 are correspondingly arranged and penetrated with fixing bolts 45, and the annular holes 44 of the fourth flange 43 and the second radial holes 221 of the second flange 22 are correspondingly arranged and penetrated with fixing bolts 45. Preferably, a plurality of stiffeners 23 are fixed to a side of the second flange 22 away from the outer sleeve 121 , and the plurality of stiffeners 23 are welded and fixed to the cable sleeve 21 to enhance the stability of the cable sleeve 21 .

[0047] In the embodiment of the present application, the annular holes 44 in the third flange 42 and the fourth flange 43 are all set to the same diameter, that is, the multiple annular holes 44 in the third flange 42 are arranged at intervals around the center point of the third flange 42, and the multiple annular holes 44 in the fourth flange 43 are arranged at intervals around the center point of the fourth flange 43. By providing the annular holes 44 to cooperate with the radial holes, the position of the first flange 123 relative to the second flange 22 can be adjusted not only in the radial direction of the first flange 123, but also in the circumferential direction of the first flange 123. Since the first flange 123 is welded and fixed to the outer sleeve 121, and the second flange 22 is welded and fixed to the cable sleeve 21, it means that the position of the outer sleeve 121 relative to the cable sleeve 21 can be adjusted in multiple directions. Specifically, when the inclined cable 3 is installed, the cable sleeve 21 and the inclined cable 3 may be eccentric due to installation errors or environmental influences, that is, the inclined cable 3 and the cable sleeve 21 are not concentric. If the inclined cable 3 is eccentric, the hydraulic damper 131 is in a non-free state in the initial installation state, which is not conducive to the force of the hydraulic damper 131. In the embodiment of the present application, by providing a displacement adjustment component 4, the relative position of the cable sleeve 21 and the outer sleeve 121 is adjustable, that is, the cable sleeve 21 and the outer sleeve 121 can be adjusted to a position concentric with the inclined cable 3 during installation, so that the inclined cable 3 and the hydraulic damper 131 are in a free state in the initial state, which is beneficial to the force of the hydraulic damper 131 and can also enhance the service life of the hydraulic damper 131.

[0048] In some optional embodiments, the damping adjustment mechanism 1 includes a plurality of damping buffer components 14, and the plurality of damping buffer components 14 are arranged in the outer sleeve 121 at intervals along the circumference of the outer sleeve 121, and the damping buffer components 14 and the inner sleeve 11 are arranged at intervals along the radial direction of the inner sleeve 11. The damping buffer components 14 and the hydraulic damper 131 can be fixed at intervals on the outer sleeve 121. The damping buffer components 14 are provided to limit the movement of the inner sleeve 11, that is, during the operation of the hydraulic damper 131, the damping amplitude can be limited by the damping buffer components 14 and thus controlled within the allowable stroke range of the hydraulic damper 131, effectively preventing the amplitude from being too large and affecting the working performance and service life of the hydraulic damper 131.

[0049] In some optional embodiments, each of the damping and buffering components 14 may include: a connecting screw 141, the connecting screw 141 is threadedly inserted into the outer sleeve 121, and the axis of the connecting screw 141 extends radially along the outer sleeve 121, and threads may be provided along the axial direction of the connecting screw 141 to increase the adjustment area of ​​the connecting screw 141; a rubber buffer block 142, the rubber buffer block 142 is installed at one end of the connecting screw 141 close to the inner sleeve 11, and the rubber The buffer block 142 is spaced apart from the inner sleeve 11, and a concave groove may be provided at one end of the rubber buffer block 142. The side with the concave groove is arranged close to the connecting screw 141. The concave groove can facilitate the end of the connecting screw 141 to quickly locate and connect with the rubber buffer block 142. Preferably, the connecting screw 141 is passed through 1 / 2 to 1 / 3 of the rubber buffer block 142, so that when the inner sleeve 11 hits the rubber buffer block 142 during work, it will not be affected by the end of the connecting screw 141 as much as possible.

[0050] See also Figure 5As shown, in some optional embodiments, the rubber buffer block 142 is detachably mounted on the connecting screw 141, and the inner sleeve 11 is provided with a plurality of threaded holes 111, each of the threaded holes 111 is provided on the extension line of the axis of the connecting screw 141. In the embodiment of the present application, a concave groove is provided at the end of the rubber buffer block 142 close to the connecting screw 141, and a thread is provided in the concave groove, so that the rubber buffer block 142 is detachably mounted on the connecting screw 141. In some other embodiments, other detachable connection methods may also be used. The rubber buffer block 142 is detachably mounted on the connecting screw rod 141, and a threaded hole 111 is opened on the inner sleeve 11 on the extension line of the connecting screw rod 141. This allows the damping adjustment mechanism 1 to be manufactured in the factory. When it needs to be transported, the rubber buffer block 142 is not installed on the end of the connecting screw rod 141, but the end of the connecting screw rod 141 is threaded through the threaded hole 111 of the inner sleeve 11. The positions of the outer sleeve 121 and the inner sleeve 11 can be relatively fixed. The damping adjustment mechanism 1 can also reduce the possibility of damage to the hydraulic damper 131 during transportation and facilitate transportation. When the damping adjustment mechanism 1 is transported to the construction site, the connecting screw rod 141 is unscrewed from the threaded hole 111 of the inner sleeve 11, and the rubber buffer block 142 is installed on its end after the position of the connecting screw rod 141 is adjusted.

[0051] Furthermore, the connecting screw 141 is set as a fully threaded large hexagonal bolt, and its length should be ensured to be able to be smoothly screwed into the bolt hole on the inner sleeve 11. Two limit nuts are set at the connection between the large hexagonal bolt and the outer sleeve 121. The two limit nuts are respectively located on the inner and outer sides of the outer sleeve 121. After adjusting the position of the large hexagonal bolt, the limit nuts are tightened to clamp the side wall of the outer sleeve 121 to fix the position of the large hexagonal bolt.

[0052] In some optional embodiments, the inner sleeve 11 and the outer sleeve 121 are both configured as regular hexagonal structures, and each side wall of the inner sleeve 11 and the outer sleeve 121 are correspondingly configured, and each side wall of the inner sleeve 11 and the outer sleeve 121 are connected by the connecting plate 133 and the hydraulic damper 131. In the embodiment of the present application, the inner sleeve 11 and the outer sleeve 121 with regular hexagonal structures can be configured as two trapezoidal structures with the same structure that are combined or spliced ​​in a Haversian manner (half splicing refers to combining or splicing two or more materials, elements or technologies in a half-sized manner). In the trapezoidal structure that encloses the inner sleeve 11, the sides of the two trapezoidal structures that are close to each other can be radially convex. A connecting plate is extended, and a through hole is opened in the connecting plate. Bolts are inserted through the through holes to connect the two trapezoidal structures to form an inner sleeve 11; and in the trapezoidal structure forming the outer sleeve 121, a plurality of stiffening plates 122 can be provided on the outer periphery of the trapezoidal structure, and each stiffening plate 122 is provided at the corner of the regular hexagonal structure. When the two trapezoidal structures form the outer sleeve 121, a plurality of through holes are opened along the axis of the outer sleeve 121 on the stiffening plates 122 where the trapezoidal structures are close to each other, and bolts are also inserted in the through holes. A plurality of bolts are respectively inserted through the plurality of through holes to fix the two trapezoidal structures to form the inner sleeve 11. In order to ensure that the bolts do not invade the cable body range of the inclined cable 3, the above-mentioned through holes are set as countersunk bolt holes. In the embodiment of the present application, the number of through holes opened on the stiffening plate 122 is set to 4.

[0053] In the embodiment of the present application, by setting the inner sleeve 11 and the outer sleeve 121 to a regular hexagonal structure, the stability of the inner sleeve 11 and the outer sleeve 121 can be increased, and at this time, six hydraulic dampers 131 are set in the inner sleeve 11 and the outer sleeve 121, and the six hydraulic dampers 131 can be evenly arranged at a 60-degree angle between the inner sleeve 11 and the outer sleeve 121 to have a better vibration reduction effect. Specifically, the vibration force in any direction can be decomposed into three directions of Δx, Δy, and Δz that are mutually perpendicular at 90° in space. The six hydraulic dampers 131 are evenly arranged at 60° in the horizontal direction, which can ensure that at least two hydraulic dampers 131 participate in the vibration reduction work under any vibration state. Compared with the traditional three hydraulic dampers 131 arranged at 120°, the collaborative working ability, vibration reduction effect and service life of the six hydraulic dampers 131 are greatly improved.

[0054] Furthermore, the connecting ring 41, the third flange 42 and the fourth flange 43 in the displacement adjustment component 4 may also be composed of two semicircular symmetrical parts, each of which may include a half structure of the connecting ring 41, the third flange 42 and the fourth flange 43, and the two semicircular structures are assembled in a Haversian style. Figure 7As shown, a plurality of vertical stiffening ribs 46 may also be fixed on the outer periphery of the connecting ring 41, and the vertical stiffening ribs 46 divide the connecting ring 41 into a plurality of areas. Screw holes are provided on the vertical stiffening ribs 46 close to each other in the two semicircular structures, and the two semicircular structures are connected by bolts passing through the screw holes. In the embodiment of the present application, the number of hollows provided on a vertical stiffening rib 46 is 2, and some areas of the plurality of areas separated by the vertical stiffening ribs 46 may be in a hollow state. From the hollow areas, it is convenient to observe the working state and vibration reduction effect of the hydraulic damper 131 and the vibration stability of the inclined cable 3, and it is convenient for inspection and maintenance.

[0055] See also Figure 3 As shown, the embodiment of the present application further provides a cable-stayed damping system, which may include: a cable-stayed cable 3, the outer circumference of which is installed with the above-mentioned cable-stayed damping device, the cable-stayed cable 3 is fixed to the inner sleeve 11 by a cable clamp 5, the cable clamp 5 may be formed by two semicircular arc plates being matched in a Harvard style, and each semicircular arc plate may be welded and fixed to each trapezoidal structure of the inner sleeve 11 as a whole, and two support members are also arranged at intervals on the inner wall of the trapezoidal structure along the axial direction of the inner sleeve 11, and the support members may support the semicircular arc plates, and when the inner sleeves 11 are fixed to each other, the cable clamp 5 is also directly assembled into a whole, and further, a 5mm to 8mm thick rubber pad may be arranged on the inner wall of the cable clamp 5 to effectively prevent the cable clamp 5 from damaging the cable-stayed cable 3, and other structures in the cable-stayed damping system are the same as those in the cable-stayed damping device, and are not described in detail here.

[0056] The specific steps for installing the cable damping system in the embodiment of the present application can be as follows:

[0057] S1: One of the trapezoidal structures of the inner sleeve 11 and one of the trapezoidal structures of the outer sleeve 121 are bolted together into a whole through three hydraulic dampers 131 and corresponding connecting plates 133, and the other trapezoidal structures of the inner sleeve 11 and the outer sleeve 121 are also assembled into a whole in the same way.

[0058] S2: Keep the connecting screw 141 threadedly connected to the inner sleeve 11, and splice the two semicircular structures into a displacement adjustment component 4 on the lasso mechanism 2, and adjust the position of the displacement adjustment component 4 to make it concentric with the inclined cable 3, and then use bolts to connect the second flange 22 and the fourth flange 43.

[0059] S3: The two assembled structures in S1 are symmetrically arranged at the third flange 42, and a 6 mm rubber pad is set in the cable clamp 5. After the cable clamp 5 clamps the inclined cable 3, the two trapezoidal structures of the inner sleeve 11 and the two trapezoidal structures of the outer sleeve 121 are connected by bolts respectively, so that the inner sleeve 11 and the outer sleeve 121 are assembled into a whole. At this time, the cable clamp 5 stirrups the inclined cable 3.

[0060] S4: Adjust the positions of the inner sleeve 11, the outer sleeve 121 and the cable clamp 5 so that the damping adjustment mechanism 1 and the inclined cable 3 are coaxial, and then connect the first flange 123 and the third flange 42 with bolts.

[0061] S5: Select the connecting screw rod 141 from the inner sleeve 11, and install the rubber buffer blocks 142 on the ends of the connecting screw rod 141, adjust the positions of the rubber buffer blocks 142, and then tighten the limit nuts.

[0062] It should be understood that the order of the above S1 to S5 can be swapped in some cases, which does not mean that the above steps must be followed.

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A stay cable damping device, characterized in that: It includes: A damping adjustment mechanism (1), the damping adjustment mechanism (1) comprising an inner sleeve (11) and an outer connecting sleeve (12) arranged at intervals around the outer circumference of the inner sleeve (11); The inner sleeve (11) and the outer connecting sleeve (12) are coaxially arranged, and the inner sleeve (11) and the outer connecting sleeve (12) are connected via a plurality of hydraulic damping mechanisms (13), the plurality of hydraulic damping mechanisms (13) are arranged around the outer periphery of the inner sleeve (11), and the inner sleeve (11) is used for being fixedly sleeved on the inclined cable (3); A lasso mechanism (2), the lasso mechanism (2) is fixed to the outer connecting tube (12), and the lasso mechanism (2) is used to be fixed to the main beam.

2. The stayed cable damping device according to claim 1, characterized in that: Each of the hydraulic damping mechanisms (13) comprises: A hydraulic damper (131), wherein both ends of the hydraulic damper (131) are hinged with ball joints (132); At least two connecting plates (133), at least two connecting plates (133) are respectively fixed to the ball joints (132) at both ends of the hydraulic damper (131), and the connecting plate (133) at one end of the hydraulic damper (131) is fixed to the outer wall of the inner sleeve (11), and the connecting plate (133) at the other end is fixed to the inner wall of the outer connecting sleeve (12).

3. The stayed cable damping device according to claim 2, characterized in that: The outer connecting tube (12) comprises: An outer sleeve (121), the outer sleeve (121) being sleeved on the outer circumference of the inner sleeve (11), the outer sleeve (121) being coaxially arranged with the inner sleeve (11), and a stiffening plate (122) being fixed on the outer circumference of the outer sleeve (121); A first flange (123), wherein the first flange (123) is fixed to the outer sleeve (121), the lasso mechanism (2) is located on a side of the first flange (123) away from the outer sleeve (121), and the first flange (123) is fixed to the lasso mechanism (2).

4. The stayed cable damping device according to claim 3, characterized in that: The first flange (123) and the lasso mechanism (2) are connected via a displacement adjustment component (4).

5. The stayed cable damping device according to claim 4, characterized in that: The first flange (123) is provided with a plurality of first radial holes (1231) arranged at intervals; The lasso mechanism (2) comprises a lasso sleeve (21) and a second flange (22) fixed to the lasso sleeve (21), the second flange (22) being provided with a plurality of second radial holes (221) arranged at intervals, each of the second radial holes (221) being arranged correspondingly to the first radial hole (1231); The displacement adjustment component (4) comprises a connecting ring (41) and a third flange (42) and a fourth flange (43) respectively fixed to two ends of the connecting ring (41); the third flange (42) and the fourth flange (43) are both provided with a plurality of annular holes (44) arranged at intervals; the annular holes (44) of the third flange (42) and the first radial holes (1231) of the first flange (123) are correspondingly arranged and penetrated with fixing bolts (45); and the annular holes (44) of the fourth flange (43) and the second radial holes (221) of the second flange (22) are correspondingly arranged and penetrated with fixing bolts (45).

6. The stayed cable damping device according to claim 3, characterized in that: The damping adjustment mechanism (1) comprises a plurality of damping buffer components (14), wherein the plurality of damping buffer components (14) are arranged in the outer sleeve (121) at intervals along the circumference of the outer sleeve (121), and the damping buffer components (14) and the inner sleeve (11) are arranged at intervals along the radial direction of the inner sleeve (11).

7. The stayed cable damping device according to claim 6, characterized in that: Each of the damping and buffering components (14) comprises: A connecting screw rod (141), wherein the connecting screw rod (141) is threadedly inserted into the outer sleeve (121), and the axis of the connecting screw rod (141) extends along the radial direction of the outer sleeve (121); A rubber buffer block (142) is installed on one end of the connecting screw rod (141) close to the inner sleeve (11), and the rubber buffer block (142) and the inner sleeve (11) are spaced apart.

8. The stayed cable damping device according to claim 7, characterized in that: The rubber buffer block (142) is detachably mounted on the connecting screw rod (141), and the inner sleeve (11) is provided with a plurality of threaded holes (111), each of the threaded holes (111) being arranged on an extension line of the axis of the connecting screw rod (141).

9. The stayed cable damping device according to claim 3, characterized in that: The inner sleeve (11) and the outer sleeve (121) are both configured as regular hexagonal structures, and each side wall of the inner sleeve (11) and the outer sleeve (121) are configured correspondingly, and each side wall of the inner sleeve (11) and the outer sleeve (121) are connected via the connecting plate (133) and the hydraulic damper (131).

10. A cable-stayed damping system, characterized in that: It includes: A stay cable (3), the outer periphery of which is mounted a stay cable damping device as claimed in any one of claims 1 to 9, the stay cable (3) being fixed to the inner sleeve (11) by a cable clamp (5).

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