CN114481807A - Stay cable damper and combined damping device - Google Patents
Stay cable damper and combined damping device Download PDFInfo
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- CN114481807A CN114481807A CN202210067738.4A CN202210067738A CN114481807A CN 114481807 A CN114481807 A CN 114481807A CN 202210067738 A CN202210067738 A CN 202210067738A CN 114481807 A CN114481807 A CN 114481807A
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- cable
- stay cable
- container
- stay
- damper
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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Abstract
The invention relates to the technical field of structural vibration, in particular to a stay cable damper and a combined damping device. The cable clamp is used for clamping a stay cable, a first container for containing viscous materials is arranged on one side of the cable clamp, and at least one first inserting plate is arranged on the other side of the cable clamp; the outer shell is sleeved outside the cable clamp, one side of the inner side of the outer shell is provided with a second container for inserting the first inserting plate, and the other side of the inner side of the outer shell is provided with at least one second inserting plate inserted into the first container. This scheme can be solved among the prior art because damping characteristic and mounted position, its damping effect to whole suspension cable is also not as satisfactory as one's own and the limited problem of control effect.
Description
Technical Field
The invention relates to the technical field of structural vibration, in particular to a stay cable damper and a combined damping device.
Background
The cable-stayed bridge has been widely applied in the field of bridge construction engineering due to its excellent structural form, beautiful structure, large span and flexible arrangement. With the development of science and technology, more and more new materials are researched and developed, new technologies are popularized, and the number of ultra-large-span cable-stayed bridges with spans exceeding 1000m is continuously increased. The length-diameter ratio of the stay cable as a main bearing component is increased, the rigidity and the damping of the stay cable are continuously reduced, and the stay cable is very easy to generate large-amplitude vibration under external excitation of wind, wind and rain, earthquake, vehicle-mounted and the like, such as vortex vibration, galloping, flutter vibration, buffeting vibration, wind and rain excitation, parameter vibration and the like. The continuous vibration can cause the fatigue damage of the stay cable and the damage of the stay cable protective sleeve, so that the corrosion, stress corrosion and fatigue damage of the anchoring area of the stay cable are accelerated, the service life of the stay cable is shortened, the discomfort and insecurity of pedestrians are caused, most of bearing capacity or failure of the stay cable can be lost under the serious condition, and the safety of the whole bridge is seriously influenced.
The damper is used for controlling the vibration of the stay cable, the vibration of the stay cable is widely accepted by the engineering and academic circles, but a damping device which can provide effective additional damping for the inner surface (in the curve plane of the stay cable, hereinafter referred to as the inner surface) and the outer surface (perpendicular to the plane of the stay cable flexible line, hereinafter referred to as the outer surface) of the stay cable is selected, certain difficulty still exists, and the damping effect of the damper is influenced to a certain extent along with the increase of the stay cable, landscape requirements, the reduction of the relative installation position of the damper, the reduction of the supporting rigidity of the damper and the like.
The existing commonly used stay cable built-in damper typically comprises a rubber compression damper and a friction damper, but the damping effect of the existing stay cable built-in damper on the whole stay cable is not satisfactory due to the damping characteristic and the installation position. In particular, since a short cable of a general stay cable often exhibits a high frequency and a small displacement in its vibration mode, the damper has a limited control effect. In addition, the requirements for the stay cable damper not only on the vibration damping effect but also pay attention to factors in the aspects of landscape coordination, later maintenance management, durability and the like.
Disclosure of Invention
The invention aims to provide a stay cable damper and a combined damping device aiming at the defects in the prior art, and the stay cable damper and the combined damping device can solve the problems that the damping effect of the stay cable damper on the whole stay cable is unsatisfactory and the control effect is limited due to the limitation of damping characteristics and installation positions in the prior art.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
in one aspect, the present invention provides a stay cable damper, including:
the cable clamp is used for clamping the stay cable, a first container for containing viscous materials is arranged on one side of the cable clamp, and at least one first inserting plate is arranged on the other side of the cable clamp;
the shell is sleeved outside the cable clamp, one side of the inner side of the shell is provided with a second container for inserting the first inserting plate, and the other side of the inner side of the shell is provided with at least one second inserting plate inserted into the first container.
In some optional schemes, a first slot matched with the second inserting plate is arranged in the first container, the first slot is perpendicular to the axial direction of the stay cable, and the length of the second inserting plate is smaller than that of the first slot.
In some optional schemes, a second slot matched with the first inserting plate is arranged in the second container, the second slot is perpendicular to the axial direction of the stay cable, and the length of the first inserting plate is smaller than that of the second slot.
In some optional schemes, the stay cable damper further comprises a cable guide pipe, wherein the cable guide pipe is used for being sleeved on the outer side of the stay cable, one end of the cable guide pipe is used for being arranged on the main beam, and the other end of the cable guide pipe is used for installing the shell.
In some optional schemes, the stay cable damper further comprises a support rod, one end of the support rod is connected with the cable guide pipe, and the other end of the support rod is used for connecting the bridge deck.
In some optional schemes, the stay cable damper further comprises a support rod, one end of the support rod is connected with the shell, and the other end of the support rod is used for connecting the bridge deck.
In some optional schemes, the stay cable damper further comprises a waterproof cover, one end of the waterproof cover is connected with the end part of the shell, and the other end of the waterproof cover is used for being sleeved on the outer side of the stay cable.
In another aspect, the present invention further provides a combined damping device, comprising:
the cable clamp comprises at least two cable clamps, a first clamping plate and a second clamping plate, wherein the cable clamps are used for being clamped on a stay cable at intervals, one side of each cable clamp is provided with a first container for containing viscous materials, and the other side of each cable clamp is provided with at least one first inserting plate;
the shell is sleeved on the outer sides of all the cable clamps, one side of the inner side of the shell is provided with a second container for inserting each first inserting plate, and the other side of the inner side of the shell is provided with at least one second inserting plate inserted into each first container.
In some optional schemes, the combined damping device further comprises a cable guide pipe and a support rod, the cable guide pipe is used for being sleeved on the outer side of the stay cable, one end of the cable guide pipe is used for being arranged on the main beam, the other end of the cable guide pipe is used for installing the shell, one end of the support rod is connected with the cable guide pipe or the shell, and the other end of the support rod is used for being connected with the bridge floor.
In some optional schemes, the combined damping device further comprises a waterproof cover, one end of the waterproof cover is connected with the end part of the shell, and the other end of the waterproof cover is used for being sleeved on the outer side of the stay cable.
Compared with the prior art, the invention has the advantages that: the cable clamp is erected on the stay cable, the first container for containing viscous materials is positioned above, one side provided with a first inserting plate is positioned below, the shell is sleeved outside the cable clamp, the second inserting plate is inserted into the first container, the first inserting plate is inserted into the second container, a proper amount of viscous materials are contained in the first container and the second container, when the stay cable vibrates, the viscous materials in the first inserting plate are sheared in the second container to consume energy, the viscous materials in the second inserting plate are sheared in the first container to consume energy, all vibration of the stay cable can be caused, the viscous materials can be sheared by the first inserting plate and the second inserting plate, in-plane vibration and out-plane vibration of the stay cable can be controlled, multi-mode vibration control of the stay cable can be carried out, the damper is simple in structure, can be independently used as a stay cable damper, can be used as an external damper of the stay cable, and can be used as internal and external dampers of the stay cable in a plurality of sets in combination, has the advantages of simple structure and little landscape influence.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a stay cable damper according to an embodiment of the present invention after installation;
FIG. 2 is a cross-sectional view of a stay cable damper according to an embodiment of the present invention;
FIG. 3 is a schematic axial view of a stay cable damper according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an upper housing in an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a lower housing in an embodiment of the present invention;
FIG. 6 is a schematic structural view of an upper cable clamp in an embodiment of the present invention;
FIG. 7 is a schematic structural view of a lower cable clamp in an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of another installation form of the stay cable damper according to the embodiment of the invention;
fig. 9 is a schematic structural diagram of the assembled damping device according to the embodiment of the present invention after being assembled.
In the figure: 1. a cable clamp; 11. a first container; 12. a first board insert; 13. a first slot; 14. a cable clip is arranged; 15. a cable clamp is arranged; 2. a stay cable; 3. a housing; 31. a second container; 32. a second board plug; 33. a second slot; 34. an upper housing; 35. a lower housing; 4. a cable guide tube; 5. a waterproof cover; 6. a support bar; 7. a bridge deck; 8. a viscous material.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a stay cable damper comprising: a cable clamp 1 and a housing 3.
The cable clamp 1 is used for clamping the stay cable 2, a first container 11 for containing viscous materials 8 is arranged on one side of the cable clamp 1, and at least one first inserting plate 12 is arranged on the other side of the cable clamp; the outer shell 3 is sleeved on the outer side of the cable clamp 1, one side of the inner side of the outer shell 3 is provided with a second container 31 for inserting the first inserting plate 12, and the other side is provided with at least one second inserting plate 32 inserted into the first container 11.
When the stay cable damper is used, the cable clamp 1 is erected on the stay cable 2, the first container 11 for containing the viscous material 8 is positioned above, the side provided with the first inserting plate 12 is positioned below, the shell 3 is sleeved outside the cable clamp 1, the second inserting plate 32 is inserted into the first container 11, the first inserting plate 12 is inserted into the second container 31, and the proper amount of the viscous material 8 is contained in the first container 11 and the second container 31, when the stay cable 2 vibrates, the viscous material 8 in the first inserting plate 12 is cut in the second container 31 to consume energy, the viscous material 8 in the second inserting plate 32 is cut in the first container 11 to consume energy, and the vibration of the stay cable 2 in all directions, the viscous material 8 can be cut by the first inserting plate 12 and the second inserting plate 32, for example, when the stay cable 2 vibrates in the vertical direction, the first inserting plate 12 and the second inserting plate 32 can be cut in the first container 11 and the second container 31 vertically, when the stay cable 2 vibrates in the transverse bridge direction, the first inserting plate 12 and the second inserting plate 32 can perform transverse bridge shear vibration damping in the first container 11 and the second container 31. The damper is simple in structure, can be used as a built-in damper of the stay cable 2 alone or as an external damper of the stay cable 2, can be used as a built-in damper and an external damper of the stay cable 2 in a plurality of sets in combination, and has the advantages of simple structure and small landscape influence.
As shown in fig. 4 to 7, in this example, the cable clamp 1 includes an upper cable clamp 14 and a lower cable clamp 15, the upper cable clamp 14 and the lower cable clamp 15 are connected by bolts, the first container 11 is provided on the upper cable clamp 14, the first insertion plate 12 is provided on the lower cable clamp 15, and are connected by welding, the housing 3 includes an upper housing 34 and a lower housing 35, the upper housing 34 and the lower housing 35 are also connected by bolts, the second container 31 is provided on the lower housing 35, and the second insertion plate 32 is provided on the upper housing 34, and are connected by welding.
In some alternative embodiments, a first slot 13 is formed in the first container 11 and is matched with the second insertion plate 32, the first slot 13 is perpendicular to the axial direction of the stay cable 2, and the length of the second insertion plate 32 is smaller than that of the first slot 13.
In this embodiment, the first slots 13 in the first container 11 are matched with the second insertion plates 32, which means matching in terms of number and shape, that is, the first slots 13 in the first container 11 are the same as the second insertion plates 32 in number, and the first slots 13 are perpendicular to the axial direction of the stay cable 2, so that the second insertion plates 32 can be restricted from shearing and moving in the axial direction of the stay cable 2, because the axial direction of the stay cable 2 does not need to be damped. The length of the second inserting plate 32 is smaller than that of the first inserting groove 13, so that the second inserting plate 32 can move in the transverse direction in the first inserting groove 13, namely the length direction of the first inserting groove 13, and the effect of damping the transverse direction of the stay cable 2 can be achieved.
In some alternative embodiments, a second slot 33 is formed in the second container 31 to match the first insertion plate 12, the second slot 33 is perpendicular to the axial direction of the stay cable 2, and the length of the first insertion plate 12 is smaller than that of the second slot 33.
In this embodiment, the second slots 33 in the second container 31 are matched with the first inserting plates 12, which means matching in number and shape, that is, the second slots 33 with the same number as the first inserting plates 12 are arranged in the second container 31, and the second slots 33 are perpendicular to the axial direction of the stay cable 2, so that the first inserting plates 12 can be restricted from shearing and moving in the axial direction of the stay cable 2, because the axial direction of the stay cable 2 does not need to be damped. The length of the first board 12 is smaller than the length of the second slot 33, so that the first board 12 can move in the transverse direction of the second slot 33, i.e. in the length direction of the second slot 33, thereby playing a role of damping the stay cable 2 in the transverse direction.
Referring again to fig. 1, in some alternative embodiments, the stay cable damper further comprises a cable guide 4 for being sleeved outside the stay cable 2, one end of which is for being arranged on the main beam, and the other end of which is for being mounted with the housing 3.
In this embodiment, the cable guide 4 fixed at one end of the main beam is sleeved on the stay cable 2 for mounting the housing 3 through the flange, so that when the stay cable 2 vibrates, the first insert plate 12 and the second insert plate 32 can shear the viscous material 8 in the first container 11 and the second container 31, rather than vibrating together to perform a vibration damping function on the stay cable 2.
In some alternative embodiments, as shown in fig. 8, the stay cable damper further comprises a support bar 6 having one end connected to the cable guide 4 and the other end for connecting to the deck 7.
In this embodiment, when the casing 3 is installed by using the cable guide 4, if the cable guide 4 is too long, the cable guide 4 may be unstable, and in this case, a certain supporting function may be performed by connecting one end of the support rod 6 to the cable guide 4 and the other end to the deck 7. In this example, the cable guide tube 4 and the main beam are connected in a hinged manner, so that the cable guide tube 4 can rotate in the longitudinal direction of the bridge, the support rod 6 is connected with the cable guide tube 4 and the bridge floor 7 in a hinged manner, and the support rod 6 can rotate in the longitudinal direction of the bridge, so that the support rod 6 can not only support the cable guide tube 4 to a certain extent, but also have a certain adjusting capacity and a certain movement allowance for the support rod 6.
In some alternative embodiments, as shown in fig. 9, the stay cable damper further comprises a support bar 6 having one end connected to the housing 3 and the other end for connecting to the deck 7.
In this embodiment, when the casing 3 is not installed by using the cable guide 4, one end of the support rod 6 is directly connected to the casing 3, and the other end is connected to the deck 7 for supporting the casing 3, so that the casing 3 does not vibrate along with the vibration of the stay cable 2, thereby allowing the insert plate to play a certain role in damping the vibration when shearing the viscous material 8.
In some optional embodiments, the stay cable damper further comprises a waterproof cover 5, one end of which is connected to the end of the housing 3, and the other end of which is used for being sleeved outside the stay cable 2.
In this embodiment, the waterproof cover 5 is made of a material having a certain elasticity, and is used only for sealing between the end portion of the housing 3 and the stay cable 2, thereby preventing rainwater or foreign materials from entering the waterproof cover and not transmitting force. When the housing 3 is installed using the cable guide 4, the waterproof cover 5 is installed only at the upper end of the housing 3; when the housing 3 is installed without using the cable guide 4, the waterproof covers 5 may be installed at both ends of the housing 3.
The design parameters of the damper mainly include: the temperature T of the viscous material, the thickness d of the viscous material, the viscous shearing area S, the equivalent stiffness K of the viscous material, the distance x from the installation position of the damper to the anchoring end of the inhaul cable, the length L of the inhaul cable, the tension T of the inhaul cable, the mass mu of the inhaul cable in unit length and the fundamental frequency f of the inhaul cable0And cable amplitude a. The damping coefficient of the nth order mode of the damper additional stay cable is as follows: cn＝0.85e-0.043t·S·a0.34·(d·a·ωn)-0.5(ii) a In the formula of omeganIs the n-order circular frequency, omega, of the stay cablen＝2πfn；fnIs the natural vibration frequency of the stay cable in the order of n,
the relevant parameters of the damper can be designed according to the vibration control requirements of the suspension cable, including the sizes and the number of the insertion plates and the containers and the gaps between the insertion plates and the containers.
Referring again to fig. 2 to 9, in another aspect, the present invention further provides a combined damping device, including: the cable clamp comprises at least two cable clamps 1, a first clamping plate and a second clamping plate, wherein the cable clamps 1 are used for being clamped on a stay cable 2 at intervals, one side of each cable clamp 1 is provided with a first container 11 for containing viscous materials 8, and the other side of each cable clamp is provided with at least one first inserting plate 12; the cable clamp further comprises a shell 3 which is sleeved on the outer sides of all the cable clamps 1, wherein one side of the inner side of the shell 3 is provided with a second container 31 into which each first inserting plate 12 is inserted, and the other side of the inner side of the shell 3 is provided with at least one second inserting plate 32 which is inserted into each first container 11.
When the combined damping device is used, all the cable clamps 1 are arranged at the positions to be damped of the stay cables 2, the first containers 11 containing the viscous materials 8 are positioned above, the side provided with the first inserting plates 12 is positioned below, the shell 3 is sleeved outside the cable clamps 1, the second inserting plates 32 are inserted into the first containers 11, the first inserting plates 12 are inserted into the second containers 31, and proper amounts of the viscous materials 8 are contained in the first containers 11 and the second containers 31, when the stay cables 2 vibrate, the first inserting plates 12 shear the viscous materials 8 in the second containers 31 to consume energy, the second inserting plates 32 shear the viscous materials 8 in the first containers 11 to consume energy, and the stay cables 2 vibrate in all directions, the first inserting plates 12 and the second inserting plates 32 can shear the viscous materials 8, for example, when the stay cables 2 vibrate in the vertical direction, the first inserting plates 12 and the second inserting plates 32 can vertically shear in the first containers 11 and the second containers 31, when the stay cable 2 vibrates in the transverse bridge direction, the first inserting plate 12 and the second inserting plate 32 can perform transverse bridge shear vibration damping in the first container 11 and the second container 31. The damper is simple in structure, can be used as a built-in damper of the stay cable 2 alone or as an external damper of the stay cable 2, can be used as a built-in damper and an external damper of the stay cable 2 in a plurality of sets in combination, and has the advantages of simple structure and small landscape influence.
In this example, the cable clamp 1 includes an upper cable clamp 14 and a lower cable clamp 15, the upper cable clamp 14 and the lower cable clamp 15 are connected by a bolt, the first container 11 is disposed on the upper cable clamp 14, the first insertion plate 12 is disposed on the lower cable clamp 15 and is connected by a welding manner, the housing 3 includes an upper housing 34 and a lower housing 35, the upper housing 34 and the lower housing 35 are also connected by a bolt, the second container 31 is disposed on the lower housing 35, and the second insertion plate 32 is disposed on the upper housing 34 and is connected by a welding manner.
In this embodiment, the first container 11 is provided with the first slots 13 having the same number and shape as the second insertion plates 32, that is, the first container 11 is provided with the first slots 13 having the same number as the second insertion plates 32, and the second insertion plates 32 and the first slots 13 are perpendicular to the axial direction of the stay cable 2, so that the second insertion plates 32 can be restricted from shearing and moving in the axial direction of the stay cable 2, because the axial direction of the stay cable 2 does not need to be damped. The length of the second inserting plate 32 is smaller than that of the first inserting groove 13, so that the second inserting plate 32 can move in the transverse direction in the first inserting groove 13, namely the length direction of the first inserting groove 13, and the effect of damping the transverse direction of the stay cable 2 can be achieved.
In this embodiment, the second container 31 is provided with the second slots 33 having the same number and shape as the first slots 12, that is, the second container 31 is provided with the second slots 33 having the same number as the first slots 12, and the first and second slots 12 and 33 are perpendicular to the axial direction of the stay cable 2, so that the first slot 12 is restricted from shearing and moving in the axial direction of the stay cable 2, because the axial direction of the stay cable 2 does not need to be damped. The length of the first board 12 is smaller than the length of the second slot 33, so that the first board 12 can move in the transverse direction of the second slot 33, i.e. in the length direction of the second slot 33, thereby playing a role in damping the transverse direction of the stay cable 2.
In some optional embodiments, the combined damping device further comprises a cable guide tube 4 and a support rod 6, the cable guide tube 4 is used for being sleeved outside the stay cable 2, one end of the cable guide tube is used for being arranged on the main beam, the other end of the cable guide tube is used for being provided with the shell 3, one end of the support rod 6 is connected with the cable guide tube 4 or the shell 3, and the other end of the support rod is used for being connected with the bridge floor 7.
In this embodiment, a plurality of cable clamps 1 are installed inside the housing 3, and an unstable situation may be caused by the cable guide tube 4 and the housing 3 being too long, and at this time, one end of the support rod 6 is connected with the cable guide tube 4 or the housing 3 through the anchor ear sleeve and the cable guide tube 4 or the housing 3, and the other end of the support rod is connected to the bridge floor 7, so that a certain supporting function can be achieved. In this example, the connection between the cable guide tube 4 and the main beam may be a hinged connection, so that the cable guide tube 4 may rotate in the longitudinal direction, the support rod 6 may be connected to the cable guide tube 4 in a hinged connection, the support rod 6 may be connected to the bridge floor 7 in a hinged connection by using an embedded part, and the support rod 6 may rotate in the longitudinal direction, so that the support rod 6 may not only support the cable guide tube 4 to a certain extent, but also allow the support rod 6 to have a certain adjustment capability and movement allowance. The rigidity of the cable guide pipe 4 and the shell 3 is fully utilized, the installation height and the size of the support rod 6 used for supporting the cable guide pipe 4 and the shell 3 can be properly reduced, and the landscape effect is better.
In some optional embodiments, the combined damping device further comprises a waterproof cover 5, one end of which is connected with the end of the housing 3, and the other end of which is used for being sleeved outside the stay cable 2.
In this embodiment, the waterproof cover 5 is made of a material having a certain elasticity, and is used only for sealing between the end portion of the housing 3 and the stay cable 2, thereby preventing rainwater or foreign materials from entering the waterproof cover and not transmitting force. When the housing 3 is installed using the cable guide 4, the waterproof cover 5 is installed only at the upper end of the housing 3; when the housing 3 is installed without using the cable guide 4, the waterproof covers 5 may be installed at both ends of the housing 3.
In addition, the shell 3 provides heat preservation and protection functions for the damper in the scheme, and the damper has better durability. The combined damping device can control the vibration of each wind direction of the stay cable and control the vibration in the plane and out of the plane of the stay cable. In addition, the size and the number of the inserting plates and the containers can be adjusted to obtain a better vibration reduction effect. In order to ensure the working performance of the inserting plate type damper or the combined damping device, the viscous material 8 is filled to ensure that the damper cannot leak out when being obliquely arranged, and a certain reserved space is reserved between the viscous material and the container.
In summary, the present solution is that when the stay cable 2 vibrates, the first insert plate 12 shears the viscous material 8 therein in the second container 31 to consume energy, the second insert plate 32 shears the viscous material 8 therein in the first container 11 to consume energy, and the first insert plate 12 and the second insert plate 32 can shear the viscous material 8 by vibrating in all directions of the stay cable 2. Specifically, when the stay cable 2 vibrates vertically, the first insert plate 12 and the second insert plate 32 can shear vertically in the first container 11 and the second container 31, and when the stay cable 2 vibrates horizontally, the first insert plate 12 and the second insert plate 32 can shear and damp horizontally in the first container 11 and the second container 31. The damper is simple in structure, can be used as a built-in damper of the stay cable 2 alone or as an external damper of the stay cable 2, can be used as a built-in damper and an external damper of the stay cable 2 in a plurality of sets in combination, and has the advantages of simple structure and small landscape influence.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A stay cable damper, comprising:
the cable clamp (1) is used for clamping a stay cable (2), a first container (11) for containing viscous materials (8) is arranged on one side of the cable clamp (1), and at least one first inserting plate (12) is arranged on the other side of the cable clamp;
the shell (3), its cover is established in the cable clip (1) outside, one side of shell (3) inboard is equipped with the messenger first picture peg (12) male second container (31), and the opposite side is equipped with and inserts an at least second picture peg (32) in first container (11).
2. The stay cable damper according to claim 1, wherein a first insertion groove (13) is formed in the first container (11) to be matched with the second insertion plate (32), the first insertion groove (13) is perpendicular to the axial direction of the stay cable (2), and the length of the second insertion plate (32) is smaller than that of the first insertion groove (13).
3. The stay cable damper according to claim 1, wherein a second insertion groove (33) is formed in the second container (31) to be matched with the first insertion plate (12), the second insertion groove (33) is perpendicular to the axial direction of the stay cable (2), and the length of the first insertion plate (12) is smaller than that of the second insertion groove (33).
4. The stay cable damper according to claim 1, further comprising a cable guide (4) for fitting around the outer side of the stay cable (2), one end of which is adapted to be mounted on a main beam and the other end of which is adapted to be mounted on the housing (3).
5. A stay cable damper according to claim 4, further comprising a support bar (6) having one end connected to the cable guide (4) and the other end for connection to the deck (7).
6. A stay cable damper according to claim 1, further comprising a support rod (6) having one end connected to said housing (3) and the other end for connecting to a deck (7).
7. A stay cable damper according to any one of claims 1-6 further comprising a waterproof cover (5) having one end connected to the end of the housing (3) and the other end for fitting over the outside of the stay cable (2).
8. A combination damping device, comprising:
the cable clamp comprises at least two cable clamps (1) which are used for being clamped on a stay cable (2) at intervals, wherein one side of each cable clamp (1) is provided with a first container (11) used for containing viscous materials (8), and the other side of each cable clamp is provided with at least one first inserting plate (12);
the shell (3), its cover is established all the outside of cable clamp (1), one side of shell (3) inboard is equipped with and makes each first picture peg (12) male second container (31), and the opposite side all is equipped with and inserts each at least second picture peg (32) in first container (11).
9. A combined damping device according to claim 8, further comprising a cable guide tube (4) and a support rod (6), wherein the cable guide tube (4) is used for being sleeved outside the stay cable (2), one end of the cable guide tube is used for being arranged on a main beam, the other end of the cable guide tube is used for being mounted on the shell (3), one end of the support rod (6) is connected with the cable guide tube (4) or the shell (3), and the other end of the support rod is used for being connected with a bridge deck (7).
10. A combined damping device according to claim 8, characterised in that it further comprises a waterproof cover (5) having one end connected to the end of the housing (3) and the other end adapted to fit over the outer side of the stay cable (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067738.4A CN114481807A (en) | 2022-01-20 | 2022-01-20 | Stay cable damper and combined damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067738.4A CN114481807A (en) | 2022-01-20 | 2022-01-20 | Stay cable damper and combined damping device |
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| Publication Number | Publication Date |
|---|---|
| CN114481807A true CN114481807A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210067738.4A Pending CN114481807A (en) | 2022-01-20 | 2022-01-20 | Stay cable damper and combined damping device |
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| Country | Link |
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| CN (1) | CN114481807A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10168815A (en) * | 1996-12-05 | 1998-06-23 | Nkk Corp | Cable damping device |
| CN2330696Y (en) * | 1998-03-02 | 1999-07-28 | 黄连经 | Stay-cable vibration damper |
| CN2926306Y (en) * | 2006-07-06 | 2007-07-25 | 同济大学 | Sticky shearing damper for stayed-cable vibration reduction |
| CN102518040A (en) * | 2011-11-23 | 2012-06-27 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN112227180A (en) * | 2020-09-30 | 2021-01-15 | 中铁大桥局集团有限公司 | Stay cable combined vibration reduction device and method |
-
2022
- 2022-01-20 CN CN202210067738.4A patent/CN114481807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10168815A (en) * | 1996-12-05 | 1998-06-23 | Nkk Corp | Cable damping device |
| CN2330696Y (en) * | 1998-03-02 | 1999-07-28 | 黄连经 | Stay-cable vibration damper |
| CN2926306Y (en) * | 2006-07-06 | 2007-07-25 | 同济大学 | Sticky shearing damper for stayed-cable vibration reduction |
| CN102518040A (en) * | 2011-11-23 | 2012-06-27 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN112227180A (en) * | 2020-09-30 | 2021-01-15 | 中铁大桥局集团有限公司 | Stay cable combined vibration reduction device and method |
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