CN112227179B - Displacement amplification device for stay cable external damper and cable-stayed bridge - Google Patents
Displacement amplification device for stay cable external damper and cable-stayed bridge Download PDFInfo
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- CN112227179B CN112227179B CN202011062679.9A CN202011062679A CN112227179B CN 112227179 B CN112227179 B CN 112227179B CN 202011062679 A CN202011062679 A CN 202011062679A CN 112227179 B CN112227179 B CN 112227179B
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- rod
- hinged support
- displacement amplification
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for 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
Abstract
The application relates to a displacement amplification device and cable-stay bridge that external attenuator of suspension cable was used, external attenuator include the dowel steel and connect in the attenuator main part of bridge floor, and dowel steel one end is pegged graft in the attenuator main part, and the other end passes through hinged-support A and roughly connects perpendicularly on the suspension cable, and this displacement amplification device includes first pole, second pole and third pole, and when displacement amplification device was in the mounted state: the first rod, the second rod and the third rod are positioned on the same side of the external damper; one end of the first rod is connected to the stay cable through a hinged support B; one end of the second rod is connected to the bridge floor through a hinged support C; the third rod is approximately parallel to the stay cable, and one end of the third rod is connected with the dowel bar through a hinged support D; the other end of the first rod is connected with the other end of the third rod, and the other end of the second rod is connected to the third rod through a hinged support O. The vibration damping device can solve the problem that the external damper cannot play a vibration damping function because the mounting position of the external damper becomes a vibration stagnation point.
Description
Technical Field
The application relates to the technical field of engineering structure vibration reduction, in particular to a displacement amplification device for an external stay cable damper and a cable-stayed bridge.
Background
The cable-stayed bridge is a novel bridge structure which appears along with the development of modern materials and construction technology, and has the advantages of light weight, high strength, attractive form and increasingly wide application. With the continuous progress of the construction technology of the cable-stayed bridge, the span of the cable-stayed bridge is gradually increased, the length-diameter ratio of the stay cable serving as a main bearing component is increased, the rigidity and the damping are continuously reduced, and the stay cable is easy to generate large-amplitude vibration under the external excitation of wind, rain, earthquake, vehicle-mounted vehicles and the like, so that the corrosion, the stress corrosion, the fatigue damage of an anchoring area of the stay cable and the uncomfortable feeling and unsafe feeling of pedestrians are caused.
The external damper of the stay cable is one of the damping vibration attenuation measures of the stay cable, and scholars at home and abroad carry out a great deal of theoretical and experimental research on the damper, and the damper is successfully applied to dozens of cable-stayed bridges at home and abroad, so that a better vibration attenuation effect is achieved. However, as the length of the stay cable is longer and longer, the installation position of the external damper becomes a standing point (where the vibration displacement is 0) of the vibration of the stay cable, which is generally high-frequency vibration. At this time, the damper with the external stay cable cannot perform a vibration damping function, and if the stay cable vibrates seriously, the damper connecting piece is damaged.
Disclosure of Invention
The embodiment of the application provides a displacement amplification device for an external stay cable damper and a cable-stayed bridge, and aims to solve the problem that the external damper cannot play a vibration damping function because the installation position of the external damper becomes a stagnation point of stay cable vibration in the related technology.
In a first aspect, a displacement amplification device for an external damper of a stay cable is provided, the external damper comprises a dowel bar and a damper main body connected to a bridge floor, one end of the dowel bar is inserted into the damper main body, the other end of the dowel bar is approximately vertically connected to the stay cable through a hinged support A, the displacement amplification device comprises a first rod, a second rod and a third rod, wherein the displacement amplification device has an installation state and is in the installation state:
the first rod, the second rod and the third rod are positioned on the same side of the external damper;
one end of the first rod is connected to the stay cable through a hinged support B;
one end of the second rod is connected to the bridge deck through a hinged support C;
the third rod is approximately parallel to the stay cable, and one end of the third rod is connected to the dowel bar through a hinged support D; and the number of the first and second groups,
the other end of the first rod is connected with the other end of the third rod, and the other end of the second rod is connected to the third rod through a hinged support O.
In some embodiments, the first, second and third bars are located on a plane constructed by the external dampers and the stay cables, or at least one of the first, second and third bars is located outside the plane.
In some embodiments, the first bar is substantially perpendicular to the stay cable;
said second bars being substantially perpendicular to said deck;
the first rod and the third rod are connected through the hinged support O.
In some embodiments, the first bar is substantially perpendicular to the stay cable;
the second rod is substantially parallel to the dowel;
one end of the first rod, which is connected with the third rod, is fixedly connected, and the hinged support O is positioned between the end points of the two ends of the third rod.
In some embodiments, the first rod is integrally formed with the third rod.
In some embodiments, the second rod is substantially parallel to the dowel;
the first rod is connected with the third rod through a hinged support E, and the hinged support O is positioned between end points of two ends of the third rod;
the distance between the hinged support A and the hinged support B is larger than the distance between the hinged support E and the hinged support D.
In some embodiments, the external damper is a viscous shear damper.
In a second aspect, there is provided a cable-stayed bridge, comprising:
a bridge deck;
the stay cable is connected to the bridge deck;
the external damper comprises a dowel bar and a damper main body connected to the bridge floor, wherein one end of the dowel bar is inserted into the damper main body, and the other end of the dowel bar is approximately vertically connected to a stay cable through a hinged support A; and the number of the first and second groups,
the external damper is provided with the displacement amplification device, the displacement amplification device comprises a first rod, a second rod and a third rod, and the first rod, the second rod and the third rod are positioned on the same side of the external damper; one end of the first rod is connected to the stay cable through a hinged support B; one end of the second rod is connected to the bridge deck through a hinged support C; the third rod is approximately parallel to the stay cable, and one end of the third rod is connected to the dowel bar through a hinged support D; and the other end of the first rod is connected with the other end of the third rod, and the other end of the second rod is connected to the third rod through a hinged support O.
In some embodiments, the external damper is provided with two sets of displacement amplification devices, and the two sets of displacement amplification devices are respectively located above and below the external damper.
In some embodiments, the hinged supports D of the two sets of displacement amplification devices are arranged at the same position of the dowel bar of the external damper.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a displacement amplification device and cable-stay bridge that external attenuator of suspension cable was used, the displacement amplification device that this application embodiment provided uses with the cooperation of external attenuator, because vibration stagnation appears easily in external attenuator in hinged-support A department, adopt displacement amplification device's hinged-support B to carry out vibration displacement's transmission, and transmit to external attenuator after enlargiing vibration displacement through displacement amplification device, thereby carry out the damping power consumption, so can control the vibration of suspension cable effectively, improve the damping effect of external attenuator stagnation position.
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 view (a first structural form) of an installation state of a displacement amplification device for a set of stay cable external dampers according to an embodiment of the present application;
fig. 2 is a schematic view of an installation state of a displacement amplification device for a set of stay cable external dampers according to an embodiment of the present application (a second structural form);
fig. 3 is a schematic view of an installation state of a displacement amplification device for a set of external stay cable dampers according to an embodiment of the present application (a third structural form);
fig. 4 is a schematic diagram (a first structural form) of displacement magnification calculation provided in the embodiment of the present application;
fig. 5 is a schematic view of an installation state of a displacement amplification device for two sets of external stay cable dampers according to an embodiment of the present application (a second structural form);
fig. 6 is a schematic view of an installation state of a displacement amplification device for two sets of external stay cable dampers according to an embodiment of the present application (a third structural form);
fig. 7 is a schematic view of an external damper according to an embodiment of the present disclosure.
In the figure: 1. a bridge deck; 2. a damper main body; 20. a housing; 21. damping fluid; 22. inserting plates; 3. a dowel bar; 4. a stay cable; 5. a first lever; 6. a second lever; 7. a third lever.
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 embodiment of the application provides a displacement amplification device for an external damper of a stay cable, which can solve the problem that the external damper cannot play a vibration damping function because the installation position of the external damper becomes a stagnation point of the vibration of the stay cable in the related technology.
Referring to fig. 1, 2 and 3, an embodiment of the present application provides a displacement amplification device for an external damper of a stay cable, where the external damper includes a dowel bar 3 and a damper main body 2 connected to a bridge deck 1, one end of the dowel bar 3 is inserted into the damper main body 2, and the other end of the dowel bar 3 is substantially vertically connected to a stay cable 4 through a hinged support a, and of course, if necessary, the hinged support a is connected to the stay cable 4 through a cable clamp; the displacement amplification device comprises a first rod 5, a second rod 6 and a third rod 7, wherein the displacement amplification device has an installed state and when the displacement amplification device is in the installed state: the first rod 5, the second rod 6 and the third rod 7 are positioned at the same side of the external damper, one end of the first rod 5 is connected to the stay cable 4 through a hinged support B, and the hinged support B is connected with the stay cable 4 through a cable clamp if necessary; one end of the second rod 6 is connected to the bridge deck 1 through a hinged support C, the third rod 7 is approximately parallel to the stay cable 4, and one end of the third rod is connected to the dowel bar 3 through a hinged support D; and the other end of the first rod 5 is connected to the other end of the third rod 7, and the other end of the second rod 6 is connected to the third rod 7 through a hinge support O.
The first rod 5, the second rod 6 and the third rod 7 in this embodiment are all made of rigid rod members.
As shown in fig. 1, the principle of the present application is as follows:
the displacement amplification device and the external damper are matched for use, vibration stagnation points easily appear at the hinged support A of the external damper, the hinged support B of the displacement amplification device is adopted for transmitting vibration displacement, the vibration displacement is amplified by the displacement amplification device and then transmitted to the external damper, vibration reduction and energy consumption are carried out, vibration of the stay cable can be effectively controlled, and the vibration reduction effect of the stagnation point position of the external damper is improved.
As shown in fig. 1 and 4, the principle of calculating the displacement magnification of the present application is as follows:
the displacement BB 'of the hinge support B in the direction of the first rod 5 causes the second rod 6 to rotate about the hinge support C and the third rod 7 to rotate about the hinge support O and to undergo the displacement DD', OB being obtained according to the pythagorean theorem, since the first rod 5 is perpendicular to the third rod 7, since the displacements BB 'and DD' are relatively small2+OD2＝(OB-BB′)2+(OD+DD′)2And BB 'at this time since the displacements BB' and DD 'are relatively small'2≈DD′2Since the value is approximately equal to 0, DD 'is OB × BB'/OD. A desired position magnification can be obtained by controlling the length ratio of the first rod 5 and the third rod 7.
The hinge supports may be divided into pin-type hinge supports in which the rod member connected thereto can rotate in the plane and ball-type hinge supports in which the rod member connected thereto can rotate in the space, for example, as shown in fig. 1, the hinge support a, the hinge support B, the hinge support C, the hinge support D, and the hinge support O are pin-type hinge supports, and the first rod 5, the second rod 6, and the third rod 7 are coplanar and rotate in the plane; if the hinged support is changed into the demand hinged support, the first rod 5, the second rod 6 and the third rod 7 can rotate in space, so that the types of the hinged support a, the hinged support B, the hinged support C, the hinged support D and the hinged support O can be respectively selected according to actual needs (of course, the hinged support E also uses the situation hereinafter), and the combination is carried out, and the spatial arrangement mode of the first rod 5, the second rod 6 and the third rod 7 is changed, so that the displacement of the stay cable 4 can be spatially amplified, and the vibration in the plane and out of the plane of the stay cable can be effectively controlled. For example, in some preferred embodiments, the first, second and third bars 5, 6 and 7 are located on a plane constructed by the external dampers and the stay cables 4, or at least one of the first, second and third bars 5, 6 and 7 is located outside the plane.
The displacement amplification device provided by the application has multiple structural forms, and can be selected according to actual needs.
Referring to fig. 1, in a first constructive form, the first bars 5 are substantially perpendicular to the stay cables 4, the second bars 6 are substantially perpendicular to the deck 1, and the first bars 5 are connected to the third bars 7 by means of hinged supports O.
Referring to fig. 2, in a second structure, the first rod 5 is substantially perpendicular to the stay cable 4, the second rod 6 is substantially parallel to the dowel bar 3, the interconnecting ends of the first rod 5 and the third rod 7 are fixed, and the hinge support O is located between the end points of the third rod 7, wherein the first rod 5 and the third rod 7 can be integrally formed. In this embodiment, the position where the first rod 5 is connected to the third rod 7 is approximately equal to the displacement of the hinge support B, and the hinge support O is a fulcrum by using the principle of leverage, and the magnification is the distance between the hinge support O and the position where the first rod 5 is connected to the third rod 7 divided by OD.
In a third form of construction, as shown in figure 3, the second rod 6 is substantially parallel to the dowel 3, the first rod 5 is connected to the third rod 7 by means of a hinge support E, the hinge support O is located between the end points of the third rod 7, and the distance between the hinge supports a and B is greater than the distance between the hinge supports E and D. In this embodiment, the displacement of the hinge support E and the hinge support B are approximately equal, and the hinge support O is a fulcrum by adopting a lever principle, and the magnification is OD/OE at the moment.
It should be noted that, when the external damper is configured, if only one set of displacement amplification device is provided, the displacement amplification device can be arranged above or below the external damper; if there are two sets of displacement amplifying devices, as shown in fig. 5 and 6, one set may be provided above and one set may be provided below the external damper, respectively, when the arrangement is made.
It should be noted that the two sets of displacement amplification devices configured for the external damper may have the same or different structural forms.
It should be noted that, referring to fig. 1, in the first structure, when the displacement amplification device is located below the external damper, the hinge support B may be arranged at the midpoint between the hinge support a and the cable anchor point F.
It should be noted that, referring to fig. 5 and 6, in the second and third structural forms, there are two sets of displacement amplification devices, and when the displacement amplification devices are respectively located below and above the external damper, the lower hinge support B may be located at the midpoint between the hinge support a and the cable anchor point F, and the distance between the upper hinge support B and the hinge support a is 1/4 of the distance between the hinge support a and the cable anchor point F.
Referring to fig. 7, in some preferred embodiments, the external damper is a viscous shear damper, the external damper comprises a damper main body 2 and a dowel bar 3, the damper main body 2 comprises a shell 20, a damping fluid 21 contained in the shell 20 and an insert plate 22, and the dowel bar 3 is connected with the insert plate 22. The inserting plate 22 generates relative displacement in the damping fluid 21 to consume energy, and the inserting plate 22 can generate displacement along two directions of the third rod 7 and the dowel bar 3, so that vibration is reduced.
Referring to fig. 1, 2 and 3, an embodiment of the present application further provides a cable-stayed bridge, which includes a bridge deck 1, a stay cable 4 and an external damper, wherein the stay cable 4 is connected to the bridge deck 1; the external damper comprises a dowel bar 3 and a damper main body 2 connected to the bridge floor 1, wherein one end of the dowel bar 3 is inserted into the damper main body 2, and the other end of the dowel bar is approximately vertically connected to a stay cable 4 through a hinged support A; the external damper is provided with any one of the displacement amplification devices, the displacement amplification devices comprise a first rod 5, a second rod 6 and a third rod 7, and the first rod 5, the second rod 6 and the third rod 7 are positioned on the same side of the external damper; one end of the first rod 5 is connected to the stay cable 4 through a hinged support B; one end of the second rod 6 is connected to the bridge deck 1 through a hinged support C; the third rod 7 is approximately parallel to the stay cable 4, and one end of the third rod is connected to the dowel bar 3 through a hinged support D; and the other end of the first rod 5 is connected to the other end of the third rod 7, and the other end of the second rod 6 is connected to the third rod 7 through a hinge support O.
Referring to fig. 5 and 6, in some preferred embodiments, the external damper is configured to have two sets of displacement amplification devices, and the two sets of displacement amplification devices are respectively located above and below the external damper.
Referring to fig. 5 and 6, in some preferred embodiments, the hinged supports D of the two displacement amplification devices are arranged at the same position of the dowel bar 3 of the external damper.
Note that, the above-described calculation of the magnification is applicable to a case where the first rod 5, the second rod 6, and the third rod 7 are in the same plane.
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 displacement amplification device that external attenuator of suspension cable was used, external attenuator includes dowel steel (3) and connects in attenuator main part (2) of bridge floor (1), dowel steel (3) one end peg graft in attenuator main part (2), the other end passes through hinged-support A and roughly connects perpendicularly on suspension cable (4), its characterized in that, this displacement amplification device includes first pole (5), second pole (6) and third pole (7), wherein, displacement amplification device has the mounted state, and when being in the mounted state:
the first rod (5), the second rod (6) and the third rod (7) are positioned on the same side of the external damper;
one end of the first rod (5) is connected to the stay cable (4) through a hinged support B;
one end of the second rod (6) is connected to the bridge deck (1) through a hinged support C;
the third rod (7) is approximately parallel to the stay cable (4), and one end of the third rod is connected to the dowel bar (3) through a hinged support D; and the number of the first and second groups,
the other end of the first rod (5) is connected with the other end of the third rod (7), and the other end of the second rod (6) is connected to the third rod (7) through a hinged support O.
2. The displacement amplification device for a stay cable external damper according to claim 1, comprising: the first rod (5), the second rod (6) and the third rod (7) are positioned on a plane constructed by the external damper and the stay cable (4), or at least one of the first rod (5), the second rod (6) and the third rod (7) is positioned outside the plane.
3. The displacement amplification device for a stay cable external damper according to claim 1, comprising:
the first bar (5) is substantially perpendicular to the stay cables (4);
said second bars (6) being substantially perpendicular to said deck (1);
the first rod (5) and the third rod (7) are connected through the hinged support O.
4. The displacement amplification device for a stay cable external damper according to claim 1, comprising:
the first bar (5) is substantially perpendicular to the stay cables (4);
the second lever (6) is substantially parallel to the dowel (3);
one end of the first rod (5) connected with the third rod (7) is fixedly connected, and the hinged support O is positioned between the end points of the two ends of the third rod (7).
5. The displacement amplification device for a stay cable external damper according to claim 4, wherein: the first rod (5) and the third rod (7) are integrally formed.
6. The displacement amplification device for a stay cable external damper according to claim 1, comprising:
the second lever (6) is substantially parallel to the dowel (3);
the first rod (5) is connected with the third rod (7) through a hinged support E, and the hinged support O is positioned between end points of two ends of the third rod (7);
the distance between the hinged support A and the hinged support B is larger than the distance between the hinged support E and the hinged support D.
7. The displacement amplification device for a stay cable external damper according to claim 1, comprising: the external damper adopts a viscous shear damper.
8. A cable-stayed bridge, characterized in that it comprises:
a bridge deck (1);
a stay cable (4) connected to the bridge deck (1);
the external damper comprises a dowel bar (3) and a damper main body (2) connected to the bridge floor (1), wherein one end of the dowel bar (3) is inserted into the damper main body (2), and the other end of the dowel bar is approximately vertically connected to a stay cable (4) through a hinged support A; and the number of the first and second groups,
the external damper is provided with a displacement amplification device according to any one of claims 1 to 7, the displacement amplification device comprises a first rod (5), a second rod (6) and a third rod (7), and the first rod (5), the second rod (6) and the third rod (7) are positioned on the same side of the external damper; one end of the first rod (5) is connected to the stay cable (4) through a hinged support B; one end of the second rod (6) is connected to the bridge deck (1) through a hinged support C; the third rod (7) is approximately parallel to the stay cable (4), and one end of the third rod is connected to the dowel bar (3) through a hinged support D; and the other end of the first rod (5) is connected with the other end of the third rod (7), and the other end of the second rod (6) is connected to the third rod (7) through a hinged support O.
9. A cable-stayed bridge according to claim 8, characterized in that: the displacement amplification devices configured for the external damper are provided with two sets, and the two sets of displacement amplification devices are respectively positioned above and below the external damper.
10. A cable-stayed bridge according to claim 9, characterized in that: and hinged supports D of the two sets of displacement amplification devices are arranged at the same position of a dowel bar (3) of the external damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062679.9A CN112227179B (en) | 2020-09-30 | 2020-09-30 | Displacement amplification device for stay cable external damper and cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062679.9A CN112227179B (en) | 2020-09-30 | 2020-09-30 | Displacement amplification device for stay cable external damper and cable-stayed bridge |
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| CN112227179A CN112227179A (en) | 2021-01-15 |
| CN112227179B true CN112227179B (en) | 2022-04-15 |
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| CN112984220B (en) * | 2021-02-22 | 2022-11-15 | 中国核动力研究设计院 | Vibration reduction and isolation hanging bracket for nuclear power pipeline |
| CN113622304B (en) * | 2021-08-06 | 2023-04-11 | 中铁大桥局集团有限公司 | Stay cable lever amplification damping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04194108A (en) * | 1990-11-27 | 1992-07-14 | Mitsubishi Heavy Ind Ltd | Vibration isolator for link-type cable |
| CN101324052A (en) * | 2007-06-12 | 2008-12-17 | 同济大学 | Damper gain apparatus |
| FR3033803B1 (en) * | 2015-03-16 | 2021-01-29 | Soletanche Freyssinet | CABLE VIBRATION DAMPING DEVICE |
| CN104894970B (en) * | 2015-05-21 | 2016-08-24 | 中国铁路总公司 | The eddy current damper of a kind of suspension cable out-of-plane vibration control and damping generation method |
| CN107165049A (en) * | 2017-06-14 | 2017-09-15 | 南昌工程学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN109235229B (en) * | 2018-09-07 | 2020-05-12 | 中铁大桥科学研究院有限公司 | Lever-type damping device and cable-stayed bridge with same |
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