CN215482251U - Stay cable lever mass damping device - Google Patents

Stay cable lever mass damping device Download PDF

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Publication number
CN215482251U
CN215482251U CN202121839093.9U CN202121839093U CN215482251U CN 215482251 U CN215482251 U CN 215482251U CN 202121839093 U CN202121839093 U CN 202121839093U CN 215482251 U CN215482251 U CN 215482251U
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China
Prior art keywords
damping
force transmission
transmission lever
hinged
stay cable
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CN202121839093.9U
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Chinese (zh)
Inventor
吴肖波
王波
汪正兴
荆国强
郭翠翠
钟继卫
彭旭民
马长飞
王翔
柴小鹏
李亚敏
盛能军
刘鹏飞
肖龙
戴青年
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China Railway Major Bridge Engineering Group Co Ltd MBEC
China Railway Bridge Science Research Institute Ltd
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China Railway Major Bridge Engineering Group Co Ltd MBEC
China Railway Bridge Science Research Institute Ltd
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Priority to CN202121839093.9U priority Critical patent/CN215482251U/en
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Abstract

The utility model relates to the technical field of bridge vibration reduction, in particular to a stay cable lever mass damping device. This suspension cable lever quality damping device includes: the clamping device comprises a first clamping mechanism, a first force transmission lever, a rigid support and a first damping mechanism. The first clamping mechanism is used for clamping a first set position of the stay cable; the first force transmission lever comprises a hinged end and a damping end, and the hinged end is hinged with the first clamping mechanism; one end of the rigid support is hinged with the first force transmission lever, the hinged position of the rigid support and the first force transmission lever is close to the hinged end, and the other end of the rigid support is fixed on the bridge floor; the first damping mechanism is connected with the damping end and fixed on the bridge floor. The problem that the installation position of a damper in the prior art is low and cannot achieve a vibration reduction effect, and the appearance of a bridge is influenced due to the fact that a long dowel bar is required due to too high installation is solved.

Description

Stay cable lever mass damping device
Technical Field
The utility model relates to the technical field of bridge vibration reduction, in particular to a stay cable lever mass 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. At present, the Russian island bridge with the main span of 1104m is a cable-stayed bridge with the largest span in the world, and the large-span cable-stayed bridge is the main type of the existing large-span bridge and is continuously and rapidly constructed and developed.
With the continuous increase of the span of the cable-stayed bridge, the length-diameter ratio of the stay cable serving as a main bearing component is increased, which also leads to the increasingly wide application of the ultra-long stay cable (the stay cable with the length more than 450m specified in' stay cable external viscous damper JT/T1038 + 2016 is the ultra-long stay cable), the rigidity and the damping of the stay cable are continuously reduced, and the stay cable is easy to generate large-amplitude vibration under the external excitation of wind, wind and rain, earthquake, vehicle-mounted and the like, such as vortex vibration, galloping, flutter vibration, buffeting, wind and rain excitation, parameter vibration and the like. A large number of engineering and construction projects show that the ultra-long stay cables are very easy to be damaged by fatigue, because the ultra-long stay cables of the cable-stayed bridge often generate large-amplitude and severe vibration even under the conditions of light rain and weak wind. The fatigue damage of the ultra-long stay cable can often cause the damage of the stay cable protective sleeve, thereby accelerating the corrosion, stress corrosion and fatigue damage of the anchoring area of the stay cable, reducing the service life of the stay cable and causing the discomfort and insecurity of pedestrians, and possibly leading the stay cable to lose most of bearing capacity or lose efficacy under the serious condition, so that the safety of the whole bridge is seriously influenced.
At present, vibration control methods of a stay cable can be roughly divided into passive control, active control, semi-active control and intelligent control, wherein the passive control mainly comprises a pneumatic vibration reduction method, an auxiliary cable method and a damper method, and the control method is the most widely applied control method at present. The damper method is the most commonly used vibration damping method in passive control, and the equivalent damping ratio of the system is improved through the action of an additional damper, so that the vibration energy of the cable can be quickly consumed. The common dampers in practical engineering mainly comprise a viscous damper, a Tuned Mass Damper (TMD), a high-damping rubber damper, a friction damper, a magnetorheological damper which is frequently applied in recent years and the like, and the main engineering measure for the vibration reduction of the stay cable is to install an external damper near the anchoring end of the stay cable, so that the modal damping ratio of the stay cable is improved, and the aim of inhibiting the excessive vibration of the stay cable is fulfilled. The damper does not need to provide an external power supply, is low in cost and easy to maintain, and is more popular in stay cable vibration reduction engineering practice. The maximum modal damping ratio of the linear viscous damper is proportional to the installation position ratio a/L (a is the installation height of the stay cable, and L is the length of the stay cable). Research shows that the theoretical value of the maximum modal damping ratio of the linear viscous damper is a/(2L). Due to the limitation of a, when L is large, the value of the installation position ratio a/L is sharply reduced, so that the modal damping ratio provided by the conventional damper to the ultra-long stay cable is smaller. For example, in a kilometer-span cable-stayed bridge, the length of a stay cable reaches 500m, and if a conventional damper is installed at a position of 5m, the maximum modal damping ratio provided by the conventional damper is theoretically 0.5%, so that the large vibration of the stay cable cannot be effectively inhibited; if the installation height is 3 percent (the modal damping ratio of the stay cable is 3 percent) according to the theory, the length of the force transmission rod of the damper exceeds 10m, higher requirements on the rigidity of the force transmission rod are provided, and the bridge landscape is seriously influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a stay cable lever mass damping device which can solve the problems that the installation position of a damper in the prior art is low and cannot achieve a vibration damping effect, and the appearance of a bridge is influenced due to the fact that a long dowel bar is required when the damper is installed too high.
In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:
the utility model provides a stay cable lever mass damping device, comprising:
the first clamping mechanism is used for clamping a first set position of the stay cable;
a first force transfer lever including a hinged end and a damping end, the hinged end being hinged to the first clamping mechanism;
one end of the rigid support is hinged with the first force transmission lever, the hinged position of the rigid support and the first force transmission lever is close to the hinged end, and the other end of the rigid support is fixed on the bridge deck;
and the first damping mechanism is connected with the damping end and is fixed on the bridge deck.
In some optional schemes, the rigid support is in an L shape, and comprises an outer extending pipe and a supporting rod which are perpendicular to each other and are connected with each other at one end, the outer extending pipe is sleeved outside the first force transmission lever, the outer extending pipe is hinged with the first force transmission lever, and the other end of the supporting rod is fixed on the bridge deck and is positioned at one side close to the damping end.
In some alternatives, the other end of the extension tube is hinged to the first power lever by a first ball joint.
In some alternatives, the first damping mechanism is two dampers at a set angle to each other.
In some optional schemes, at least two outer hinge holes are arranged on the outer extension pipe at intervals, an inner hinge hole corresponding to the outer hinge hole is arranged on the first force transmission lever, and the outer extension pipe is hinged to the first force transmission lever through a pin shaft.
In some optional schemes, the cable-stayed bridge further comprises a second clamping mechanism, a second force transmission lever and a second damping mechanism, wherein the second clamping mechanism is used for clamping a second set position of the stay cable and is located between the first clamping mechanism and an anchor point of the stay cable and the bridge floor, two ends of the second force transmission lever are respectively connected with the second clamping mechanism and the second damping mechanism, the middle part of the second force transmission lever is hinged to the rigid support, the hinge point is close to the second clamping mechanism, and the second damping mechanism is used for being fixed on the bridge floor.
In some optional schemes, the rigid support is L-shaped, and includes an outer tube and a support rod that are perpendicular to each other and are connected to each other at one end, the outer tube is sleeved outside the first force transmission lever, the other end of the outer tube is hinged to the first force transmission lever through a first spherical hinge, the first force transmission lever is a hollow rod, and the second force transmission lever is arranged inside the first force transmission lever and is hinged to the outer tube.
In some alternatives, the first damping mechanism and the second damping mechanism are both viscous shear dampers.
In some alternatives, the viscous shear damper includes an insert plate, a damping container, and a viscous material, and the insert plates of the first and second damping mechanisms share the same damping container and viscous material.
In some alternatives, the second force transmission lever is connected to the extension tube by a second ball joint.
Compared with the prior art, the utility model has the advantages that: rigid bracket one end is articulated with the position that first power transmission lever is close to the hinged end, and the other end is fixed on the bridge floor, forms a lever structure, can enlarge the vibration of the first settlement position of suspension cable to the damping end, carries out the damping through setting up the first damping mechanism at the damping end, can improve the damping effect. In addition, the rigid support is arranged between the hinged end and the damping end, the problem that the damper dowel bar is too long due to the fact that the damper is directly connected with a first set position to damp the stay cable is solved, and the rigid support is shorter and more attractive than the former damper dowel bar. In addition, the first damping mechanism is fixed on the bridge floor, and the first damping mechanism is convenient to install and maintain.
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 diagram of a stay cable lever mass damping device in an embodiment of the present invention;
FIG. 2 is a schematic view of the first force transmission lever according to an embodiment of the present invention;
fig. 3 is a schematic view of the magnification factor of the second force transmission lever according to an embodiment of the utility model.
In the figure: 1. a first clamping mechanism; 2. a stay cable; 3. a first force transfer lever; 31. a hinged end; 32. a damping end; 4. a bridge deck; 41. an anchor point; 5. a rigid support; 51. an outer extension tube; 52. a support bar; 53. a reinforcing bar; 35. a first spherical hinge; 6. a first damping mechanism; 61. a first board insert; 62. a first additional mass; 7. a second damping mechanism; 71. a second board plug; 72. a second additional mass; 8. a second clamping mechanism; 9. a second force transfer lever; 59. and a second spherical hinge.
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.
The present invention will be described in more detail with reference to the accompanying drawings.
As shown in fig. 1, a stay cable lever mass damping device includes: the clamping device comprises a first clamping mechanism 1, a first force transmission lever 3, a rigid support 5 and a first damping mechanism 6.
The first clamping mechanism 1 is used for clamping at a first set position of the stay cable 2; the first force transmission lever 3 comprises a hinged end 31 and a damping end 32, and the hinged end 31 is hinged with the first clamping mechanism 1; one end of the rigid support 5 is hinged with the first force transmission lever 3, the hinged position of the rigid support 5 and the first force transmission lever 3 is close to the hinged end 31, and the other end of the rigid support 5 is fixed on the bridge deck 4; the first damping means 6 is connected to the damping end 32 and is fixed to the deck 4.
When the inclined cable lever mass damping device is used, the first clamping mechanism 1 is clamped at a first set position of the inclined cable 2, the hinged end 31 of the first force transmission lever 3 is hinged with the first clamping mechanism 1, one end of the rigid support 5 is hinged with the position, close to the hinged end 31, of the first force transmission lever 3, the other end of the rigid support is fixed on the bridge floor 4, a lever structure is formed, vibration of the first set position of the inclined cable 2 can be amplified to the damping end 32, vibration reduction is carried out through the first damping mechanism 6 arranged at the damping end 32, and the vibration reduction effect can be improved. In addition, the rigid support 5 is arranged between the hinged end 31 and the damping end 32, the problem that the damper dowel bar is too long due to the fact that the damper is directly connected with a first set position to damp the stay cable 2 is solved, and the rigid support 5 is shorter and more attractive than the former damper dowel bar. In addition, the first damping mechanism 6 is fixed on the bridge deck 4, and the installation and maintenance of the first damping mechanism 6 are also convenient.
In this embodiment, the first force transmission lever 3 and the stay cable 2 are parallel to each other, and the rigid bracket 5 and the first damping mechanism 6 are substantially perpendicular to each other, so that the damping effect can be improved.
In some alternative embodiments, the rigid support 5 is L-shaped and comprises an outer tube 51 and a support rod 52 perpendicular to each other and connected to each other at one end, the outer tube 51 is sleeved outside the first transmission lever 3, the outer tube 51 is hinged to the first transmission lever 3, and the other end of the support rod 52 is fixed to the deck 4 and located at a side close to the damping end 32.
In this embodiment, the end of the outer tube 51 is hinged to the first force transmission lever 3, the outer tube 51 is parallel to the stay cable 2, the support rod 52 is perpendicular to the stay cable 2, and the rigid bracket 5 is L-shaped, so that the height of the support rod 52 in the rigid bracket 5 can be reduced, the amplification factor of the arrangement is retained, and the influence on the appearance of the stay cable is reduced.
In some alternative embodiments, the other end of the extension tube 51 is hinged to the first power lever 3 by a first spherical hinge 35.
In some alternative embodiments, the first damping mechanism 6 is two dampers at a set angle to each other.
In this embodiment, the other end of the outer tube 51 is connected to the first force transmitting lever 3 in a spherical hinge manner, that is, the first spherical hinge 35 is matched with the first damping mechanism 6 to adopt a plug-in plate type viscous shear damper, so that the control of omnidirectional vibration can be realized, and in addition, if the first damping mechanism 6 adopts two dampers perpendicular to the stay cable 2 and forming an angle with each other, the control of multi-directional vibration can be realized.
In some alternative embodiments, the outer tube 51 has at least two outer hinge holes spaced apart from each other, the first power transmission lever 3 has an inner hinge hole corresponding to the outer hinge hole, and the outer tube 51 is hinged to the first power transmission lever 3 by a pin.
In this embodiment, the outer extension tube 51 and the first transmission lever 3 are provided with an outer hinge hole and an inner hinge hole which are matched with each other and can be connected through a pin shaft, so that when the amplification factor needs to be adjusted, the amplification factor can be adjusted by adjusting the hinge position of the pin shaft.
Referring to fig. 1 and 2, in this example, the distance from the hinge point to the hinge end 31 is L1, and the distance from the hinge point to the damping end 32 is L2, so that the amplification factor is L2/L1.
In some optional embodiments, the stay cable lever mass damping device further includes a second clamping mechanism 8, a second force transmission lever 9 and a second damping mechanism 7, the second clamping mechanism 8 is configured to be clamped at a second set position of the stay cable 2 and located between the first clamping mechanism 1 and the anchor point 41 of the stay cable 2 and the bridge deck 4, two ends of the second force transmission lever 9 are respectively connected with the second clamping mechanism 8 and the second damping mechanism 7, the middle portion of the second force transmission lever is hinged to the rigid support 5, the hinge point is close to the second clamping mechanism 8, and the second damping mechanism 7 is configured to be fixed on the bridge deck 4.
In this embodiment, the two ends of the second force transmission lever 9 are respectively connected to the second clamping mechanism 8 and the second damping mechanism 7, the middle portion of the second force transmission lever is hinged to the rigid bracket 5, and the hinged point is close to the second clamping mechanism 8, so as to form a lever amplification mechanism capable of amplifying the vibration of the stay cable 2 at the second set position. And can cooperate with the first damping mechanism 6 to realize the vibration damping coverage of the stay cable 2 on a plurality of frequency bands of vibration frequency. Of course, in other embodiments, a plurality of dampers may be provided to perform full-band damping control on the stay cable 2.
In this embodiment, the first set position is set at a position 3% of the length of the stay cable from the anchor point of the stay cable 2 on the bridge deck 4, and the second set position is set at a position 1.5-2% of the length of the stay cable from the anchor point of the stay cable 2 on the bridge deck 4.
In some alternative embodiments, the rigid support 5 is L-shaped and includes an external extending tube 51 and a supporting rod 52, the external extending tube 51 is disposed at the outside of the first force transmission lever 3, the other end of the external extending tube 51 is hinged to the first force transmission lever 3 through the first spherical hinge 35, the first force transmission lever 3 is a hollow rod, and the second force transmission lever 9 is disposed in the first force transmission lever 3 and is hinged to the external extending tube 51.
In this embodiment, at the position where the second force transmission lever 9 is hinged to the second clamping mechanism 8, the through holes are formed in the outer extension tube 51 and the first force transmission lever 3, so that the second force transmission lever 9 and the second clamping mechanism 8 can be hinged. The second force transmission lever 9 is hinged to the outer pipe 51 at a position where the first force transmission lever 3 and the outer pipe 51 are also provided with through holes, so that the second force transmission lever 9 is hinged to the outer pipe 51. In this case the hinging of the second force transmission lever 9 to the extension tube 51 is arranged at the connection between the extension tube 51 and the support rod 52.
In addition, the rigid support 5 further comprises a reinforcing rod 53, in this case, the reinforcing rod 53 is connected to the end of the outer tube 51 for improving the strength and stability of the whole rigid support 5.
Referring to fig. 1 and 3, the second force transmission lever 9 and the rigid bracket 5 form a lever amplification mechanism with an amplification factor of L4/L3, wherein L4 is the distance from the hinged position of the second force transmission lever 9 and the external pipe 51 to the second damping mechanism 7, and L3 is the distance from the hinged position of the second force transmission lever 9 and the external pipe 51 to the second clamping mechanism 8. The first clamping mechanism 1 and the second clamping mechanism 8 are both rope clamps.
In this example, the first force transmission lever 3 is sleeved on the second force transmission lever 9, and the outer extension pipe 51 is sleeved on the first force transmission lever 3. Can save installation space and also can make
And there are gaps between the first force transmission lever 3, the second force transmission lever 9 and the outer pipe 51, so that they do not interfere with each other when they are in use.
In some alternative embodiments, the first damping mechanism 6 and the second damping mechanism 7 are both viscous shear dampers.
In some alternative embodiments the second force transmission lever 9 is connected to the extension tube 51 by a second ball joint 59.
In this embodiment, the second force transmission lever 9 is connected to the outer tube 51 through the second spherical hinge 59, and a plug-in plate type viscous shear damper is used in cooperation, so that the control of the omnidirectional vibration of the stay cable 2 can be realized.
In some alternative embodiments, the viscous shear damper comprises an insert plate, a damping reservoir and a viscous material, the insert plates of the first and second damping mechanisms 6, 7 sharing the same damping reservoir and viscous material.
In this embodiment, the first inserting plate 61 of the first damping mechanism 6 and the second inserting plate 71 of the second damping mechanism 7 share the same damping container and viscous material, which can save material and space, and in combination with the design scheme that the first force transmission lever 3 is sleeved outside the second force transmission lever 9, only one mounting position of one damping mechanism is occupied, but two damping mechanisms are mounted, so as to realize multi-stage frequency control.
In addition, a first additional mass block 62 is arranged between the first inserting plate 61 of the first damping mechanism 6 and the first force transmission lever 3, a second additional mass block 72 is arranged at the joint of the second inserting plate 71 of the second damping mechanism 7 and the second force transmission lever 9, inertia force is generated through the first additional mass block 62 and the second additional mass block 72, the inertia force and the damping force are transmitted back to the stay cable 2 through a spherical hinge under the amplification effect of the force transmission lever, the modal mass, the rigidity and the damping of the stay cable are changed, the vibration in the cable surface or outside the cable surface of the stay cable 2 is effectively inhibited, the damper is positioned on the bridge floor of a main beam, the mounting height of the force transmission rod of the damper is reduced, the mounting and maintenance are both convenient, and the influence on the scene is very small.
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 a 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. The utility model provides a suspension cable lever quality damping device which characterized in that includes:
a first clamping mechanism (1) for clamping at a first set position of the stay cable (2);
a first force transmission lever (3) comprising a hinged end (31) and a damping end (32), the hinged end (31) being hinged to the first clamping mechanism (1);
a rigid support (5), one end of which is hinged with the first force transmission lever (3), and the hinged position of which with the first force transmission lever (3) is close to the hinged end (31), and the other end of the rigid support (5) is used for being fixed on a bridge deck (4);
a first damping mechanism (6) connected to the damping end (32) and fixed to the deck (4).
2. The stay cable lever mass damping device of claim 1, wherein: the rigid support (5) is L-shaped and comprises an outward extending pipe (51) and a supporting rod (52) which are perpendicular to each other and one end of the outward extending pipe (51) is mutually connected, the outward extending pipe (51) is sleeved on the outer side of the first force transmission lever (3), the outward extending pipe (51) is hinged with the first force transmission lever (3), and the other end of the supporting rod (52) is fixed on the bridge floor (4) and is positioned on one side close to the damping end (32).
3. The stay cable lever mass damping device of claim 2, wherein: the other end of the outer extension pipe (51) is hinged with the first force transmission lever (3) through a first spherical hinge (35).
4. The stay cable lever mass damping device of claim 3, wherein: the first damping mechanism (6) is two dampers which mutually form a set angle.
5. The stay cable lever mass damping device of claim 2, wherein: the outer pipe (51) is provided with at least two outer hinge holes at intervals, the first transmission lever (3) is provided with inner hinge holes corresponding to the outer hinge holes, and the outer pipe (51) is hinged to the first transmission lever (3) through a pin shaft.
6. The mass damping device for the stay cable lever according to claim 1, further comprising a second clamping mechanism (8), a second force transmission lever (9) and a second damping mechanism (7), wherein the second clamping mechanism (8) is used for clamping a second set position of the stay cable (2) and is located between the first clamping mechanism (1) and the anchor point (41) of the stay cable (2) and the bridge deck (4), two ends of the second force transmission lever (9) are respectively connected with the second clamping mechanism (8) and the second damping mechanism (7), the middle part of the second force transmission lever is hinged to the rigid support (5), the hinged point is close to the second clamping mechanism (8), and the second damping mechanism (7) is used for being fixed on the bridge deck (4).
7. The stay cable lever mass damping device according to claim 6, wherein the rigid support (5) is L-shaped, and comprises an outer pipe (51) and a support rod (52) which are perpendicular to each other and are connected with each other at one end, the outer pipe (51) is sleeved outside the first force transmission lever (3), the other end of the outer pipe (51) is hinged to the first force transmission lever (3) through a first spherical hinge (35), the first force transmission lever (3) is a hollow rod, and the second force transmission lever (9) is arranged in the first force transmission lever (3) and is hinged to the outer pipe (51).
8. A stay cable lever mass damping device according to claim 7, wherein the first damping means (6) and the second damping means (7) are viscous shear dampers.
9. The stay cable lever mass damping device according to claim 8, wherein the viscous shear damper comprises an insert plate, a damping container and a viscous material, and the insert plates of the first damping mechanism (6) and the second damping mechanism (7) share the same damping container and viscous material.
10. A stay cable lever mass damper device according to claim 7, characterised in that the second force transmission lever (9) is connected to the outer pipe (51) by a second ball joint (59).
CN202121839093.9U 2021-08-06 2021-08-06 Stay cable lever mass damping device Active CN215482251U (en)

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Application Number Priority Date Filing Date Title
CN202121839093.9U CN215482251U (en) 2021-08-06 2021-08-06 Stay cable lever mass damping device

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Application Number Priority Date Filing Date Title
CN202121839093.9U CN215482251U (en) 2021-08-06 2021-08-06 Stay cable lever mass damping device

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Publication Number Publication Date
CN215482251U true CN215482251U (en) 2022-01-11

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CN202121839093.9U Active CN215482251U (en) 2021-08-06 2021-08-06 Stay cable lever mass damping device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114513105A (en) * 2022-03-16 2022-05-17 郑州大学 Vibration-damping power generation device for stay cable of cable-stayed bridge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114513105A (en) * 2022-03-16 2022-05-17 郑州大学 Vibration-damping power generation device for stay cable of cable-stayed bridge
CN114513105B (en) * 2022-03-16 2023-08-22 郑州大学 Vibration reduction power generation device for stayed cable of cable-stayed bridge

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