CN114016384A - View platform with damping function - Google Patents
View platform with damping function Download PDFInfo
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- CN114016384A CN114016384A CN202111171365.7A CN202111171365A CN114016384A CN 114016384 A CN114016384 A CN 114016384A CN 202111171365 A CN202111171365 A CN 202111171365A CN 114016384 A CN114016384 A CN 114016384A
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- damper
- main beam
- vibration reduction
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- 238000013016 damping Methods 0.000 title claims description 25
- 230000009467 reduction Effects 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims description 23
- 230000005484 gravity Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 18
- 238000006073 displacement reaction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Classifications
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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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a viewing platform with a vibration reduction function, which comprises: the bridge comprises a bridge supporting body, wherein a main beam is arranged on the bridge supporting body; the viewing platform is positioned at the bottom of the main beam and is rotatably connected to the bridge supporting body through a hinge device; one end of the damper is rotatably connected to the viewing platform, and the other end of the damper is rotatably connected to the bridge supporting body; one end of the stay cable is mounted on the viewing platform, and the other end of the stay cable is mounted on the main beam; the hinge device, the damper, and the cable have substantially parallel rotational axes. The landscape platform with the vibration reduction function realizes vibration reduction of the main beam through the damper and the inhaul cable which are arranged on the landscape platform, and can provide additional inertia force for vibration reduction of the main beam by utilizing the dead weight of the landscape platform, thereby improving the vibration reduction effect of the main beam.
Description
Technical Field
The invention relates to the field of bridge vibration reduction, in particular to a landscape platform with a vibration reduction function.
Background
In recent years, more and more large-span bridges are built in scenic tourist sites with beautiful landscape, and in order to enjoy landscape from an overhead perspective, a plurality of large-span bridges are additionally provided with a landscape platform, such as a Chongqing Yangyuan bridge, a Zhou Bay sea-crossing bridge, a mansion gate martial bridge and the like. When large-span bridges are built more and more, vertical vibration is easy to occur under the action of wind load and vehicle load due to the characteristics of large span, large flexibility, small damping and the like, the bridge deck amplitude is too large, the driving comfort and traffic safety are affected, and the bridge is even damaged in severe cases.
In the correlation technique, the damper is installed on the cantilever steel frame to damp the bridge, and the large cantilever support frame is utilized to support the damper, so that the damper can be relatively close to the large vertical displacement area of the main beam, and a better damping effect is achieved.
However, the damper is stressed greatly in the vibration reduction process, the requirement on the rigidity of the large cantilever support frame is high, the structure of the cantilever support frame is complex, the implementation difficulty is high, the design difficulty is improved, and the construction cost is increased.
Disclosure of Invention
The embodiment of the invention provides a viewing platform with a vibration reduction function, and aims to solve the problems that in the related art, a cantilever support frame is complex in structure and high in implementation difficulty, the design difficulty is improved, and the construction cost is increased.
In a first aspect, a viewing platform with vibration reduction function is provided, which includes: the bridge comprises a bridge supporting body, wherein a main beam is arranged on the bridge supporting body; the viewing platform is positioned at the bottom of the main beam and is rotatably connected to the bridge supporting body through a hinge device; one end of the damper is rotatably connected to the viewing platform, and the other end of the damper is rotatably connected to the bridge supporting body; one end of the stay cable is mounted on the viewing platform, and the other end of the stay cable is mounted on the main beam; the hinge device, the damper, and the cable have substantially parallel rotational axes.
In some embodiments, the connection point of the damper to the viewing platform is located on a side of the guy cable remote from the hinge arrangement.
In some embodiments, the viewing platform is symmetrically arranged along the longitudinal bridge of the main beam towards the central axis, the viewing platform is rotatably connected with at least two pull cables, and the pull cables are symmetrically arranged along the longitudinal bridge of the main beam towards the central axis.
In some embodiments, the hinge device and the guy cable are located on opposite sides of the bridge support, and the center of gravity of the viewing platform is located between the hinge device and the guy cable.
In some embodiments, a fixed seat is arranged on a side edge of the viewing platform, and one end of the guy cable, which is far away from the main beam, is rotatably connected to the fixed seat.
In some embodiments, the rotation axis of the hinge device is substantially perpendicular to a central axis of the main beam, the central axis is a symmetry axis of the main beam along the longitudinal bridge direction, and an included angle between a central line of the cable and a horizontal plane is greater than or equal to 45 degrees.
In some embodiments, the damper is a viscous damper.
In some embodiments, a protective support is fixed to the bridge support body, and the protective support is located at the bottom of the viewing platform; and a gap is reserved between the protective support and the viewing platform, and when the inhaul cable is broken, the upper part of the protective support supports the viewing platform.
In some embodiments, the protective bearings and the hinge device are located on opposite sides of the bridge support.
In some embodiments, a guardrail is arranged above the viewing platform, and the guardrail surrounds a movable space.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a landscape platform with a vibration reduction function, which can be a pier or a bridge tower due to a bridge support body. The bridge supporting body is rotatably connected with a viewing platform through a hinge device, so that a viewing site can be provided for tourists; the sightseeing platform can rotate relative to the bridge supporting body through the hinge device, the sightseeing platform is connected with the main beam through the pull rope, the vibration displacement of the main beam can be transmitted to the sightseeing platform, the bottom of the sightseeing platform is rotatably connected with the damper, and the other end of the damper is fixed on the bridge supporting body. Compare and install the attenuator on the cantilever steelframe, connect on the higher view platform of rigidity, can save construction cost. The view platform has larger gravity and can rotate relative to the bridge support body, so that the vibration reduction effect of the damper can be improved through the inertia effect. When the main beam vibrates, the view platform rotates around the hinge device and drives the damper to move, the damper provides damping force for controlling the vibration of the main beam, the dead weight of the view platform provides inertia force for controlling the vibration of the main beam, and the vibration reduction effect of the damper on the main beam is improved. Therefore, the viewing platform can provide a viewing place for tourists, and meanwhile, vibration reduction of the main beam is realized through the damper and the inhaul cable which are installed on the viewing platform; in addition, compare the cantilever steelframe, view platform simple structure and rigidity are big, provide the additional mass through the dead weight of view platform and provide better damping effect for the girder.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, 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 landscape platform with a vibration reduction function viewed in a transverse bridge direction according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a viewing platform with a vibration reduction function according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of FIG. 2;
fig. 4 is a schematic structural diagram of a viewing platform with a vibration reduction function viewed from below according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a longitudinal bridge direction observation of a viewing platform with a vibration reduction function according to an embodiment of the present invention;
fig. 6 is a schematic bottom-view perspective view of a viewing platform with a vibration reduction function according to an embodiment of the present invention;
FIG. 7 is a partial schematic view of FIG. 6;
fig. 8 is a schematic top-view perspective view of a viewing platform with vibration reduction function according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a viewing platform with a vibration reduction function according to an embodiment of the present invention.
In the figure:
1. a bridge support; 2. a main beam; 3. a viewing platform; 4. a hinge device; 5. a damper; 6. a cable; 7. a protective support; 8. a guardrail; 9. a fixed seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a viewing platform with a vibration reduction function, which can solve the problems that a cantilever support frame is complex in structure and high in implementation difficulty, the design difficulty is improved, and the construction cost is increased.
Referring to fig. 1 to 8, a viewing platform with a vibration reduction function according to an embodiment of the present invention may include: the bridge comprises a bridge support body 1, wherein a main beam 2 can be arranged on the bridge support body 1; the viewing platform 3 can be positioned at the bottom of the main beam 2, and the viewing platform 3 can be rotatably connected to the bridge supporting body 1 through a hinge device 4; one end of the damper 5 can be rotatably connected to the viewing platform 3, and the other end of the damper 5 can be rotatably connected to the bridge supporting body 1; one end of the stay cable 6 can be arranged on the viewing platform 3, and the other end of the stay cable 6 can be arranged on the main beam 2; hinge means 4, the axis of rotation of attenuator 5 and cable 6 can be roughly parallel, in this embodiment, bridge support body 1 is the pylon, in other embodiments, bridge support body 1 can also be the pier, stand or other structure, girder 2 installs on bridge support body 1, sightseeing platform 3 rotates through hinge means 4 and connects at bridge support body 1, sightseeing platform 3 still installs attenuator 5, and sightseeing platform 3 is connected with girder 2 through cable 6, cable 6 can transmit the vibration displacement of girder 2 to sightseeing platform 3, can absorb the vibration of girder 2 that cable 6 transmitted through attenuator 5, wherein the computational formula of absorbing the damping force of girder 2 is as follows:
wherein n iscIs the displacement amplification factor, f, of the damper 5dDamping force to the main beam 2, cdAs is the damping coefficient of the damper 5,
the vertical vibration speed of the main beam at the joint of the main beam and the stay cable,
the vertical vibration acceleration m of the main beam at the joint of the main beam and the stay cabledFor the quality of view platform 3, the plus sign left side of formula (1) is the damping force of attenuator 5 to girder 2 promptly, and the plus sign right is the damping force that view platform 3 is 5 appends for attenuator, 3 dead weights of view platform provide the inertial force for controlling 2 vibrations of girder, improve the damping effect to girder 2, because do not support attenuator 5 through steel frame construction, view platform simple structure and rigidity are big, design degree of difficulty and construction cost have been reduced, and the space of bridge bottom has been widened, better experience has been provided for visitor's view.
Referring to fig. 1 and 9, in some alternative implementationsIn this embodiment, the connection point of the damper 5 and the viewing platform 3 may be located on the side of the cable 6 away from the hinge device 4, that is, the connection point of the damper 5 on the viewing platform 3 is located farther away from the hinge device 4 than the cable 6, the horizontal included angle of the cable 6 is equal to the horizontal included angle of the damper 5, that is, the projection of the cable 6 is parallel to the extending and retracting direction of the damper 5, as seen from the projection direction of the rotation shaft of the damper 5, wherein the distance between the connection points of the cable 6 and the hinge device 4 on the viewing platform 3 is L1, and the distance between the connection points of the damper 5 and the hinge device 4 on the viewing platform 3 is L2, wherein L2>L1, the damping force of the damper 5 itself can be obtained by increasing the displacement amplification factor n of the damper 5 as can be obtained from the formula (1)cThe damping force is amplified, wherein the displacement amplification coefficient is expressed by the following formula:
nc＝L2/L1 (2)
due to L2>L1，nc>1 can increase the displacement of attenuator 5 to increase attenuator 5 is to the damping force of girder 2, when cable 6 drags the motion of sight platform 3 under the vibration of girder 2, the displacement volume of attenuator 5 is compared the displacement volume of cable 6 and is bigger, that is to say, compare and directly install attenuator 5 between sight platform 3 and girder 2, can enlarge the displacement of attenuator 5 through this kind of mode, improve the stroke utilization ratio of attenuator 5, and the reinforcing is to the damping effect of girder 2.
Referring to fig. 4 and 5, in some alternative embodiments, the viewing platform 3 may be symmetrically disposed along the longitudinal bridge of the main beam 2 toward the central axis, the viewing platform 3 may be rotatably connected with at least two guys 6, the guys 6 may be symmetrically disposed along the longitudinal bridge of the main beam 2 toward the central axis, that is, the viewing platform 3 is connected with the guys 6 that are symmetrically disposed, on one hand, a stronger pulling force is provided to prevent the viewing platform 3 from being detached from the guys 6, and the symmetrical arrangement ensures that the two sides of the viewing platform 3 are uniformly stressed to prevent the viewing platform 3 from tilting during use.
Referring to fig. 1 to 9, in some alternative embodiments, the hinge device 4 and the cable 6Located at two opposite sides of the bridge supporting body 1, the center of gravity of the viewing platform 3 is located between the hinge device 4 and the cable 6, that is, the viewing platform 3 passes through two sides of the bridge supporting body 1, wherein the hinge device 4 is installed at one side of the bridge supporting body 1, the cable 6 is installed at one side of the bridge supporting body 1, the center of gravity is located between the hinge device 4 and the cable 6 by respectively supporting the viewing platform 3 at two sides by distributing at two sides of the bridge supporting body 1, in this embodiment, the distance between the center of gravity position of the viewing platform 3 and the hinge device 4 is L3, and the distance between the hinge device 4 and the cable 6 is L1, and then the mass amplification factor n is larger than that of the cable 6mThe formula is as follows:
nm＝L3/L1 (3)
in the actual use process, can increase the mass amplification factor through adjusting the position of the centre of gravity to improve the damping effect of sightseeing platform 3 to girder 2.
Referring to fig. 2 to 5, in some alternative embodiments, the side edge of the viewing platform 3 may be provided with a fixing seat 9, and one end of the guy cable 6 away from the main beam 2 may be rotatably connected to the fixing seat 9, that is, since the fixing seat 9 is located at an edge position of the viewing platform 3, and the guy cable 6 is connected to the fixing seat 9, the guy cable 6 is connected to the edge position of the viewing platform 3, so that the occupied space on the viewing platform 3 is small, and the viewing experience of the visitor on the viewing platform 3 is not excessively affected.
Referring to fig. 1 to 8, in some alternative embodiments, the rotation axis of the hinge device 4 may be substantially perpendicular to the central axis of the main beam 2, the central axis may be a symmetry axis of the main beam 2 along the longitudinal direction of the bridge, and an included angle between a central line of the cable 6 and a horizontal plane is greater than or equal to 45 degrees, that is, the hinge device 4, the cable 6 and the damper 5 are arranged along the longitudinal direction of the bridge, and since the included angle between the central line of the cable 6 and the horizontal plane is greater than or equal to 45 degrees, preferably close to 90 degrees, the cable can be biased to the vertical state to a greater extent, so that the vertical displacement of the bridge can be transmitted more easily, the vertical vibration of the main beam 2 can be reduced more easily through the cable 6, and the vibration reduction effect can be improved.
Referring to fig. 1 to 8, preferably, the damper 5 is a viscous damper, which directly increases the damping of the structure, and the viscous damper has a broad-spectrum characteristic to control the multistage vortex-induced vibration of the girder 2.
Referring to fig. 1 to 8, in some alternative embodiments, the bridge supporting body 1 may be fixed with a protective support 7, and the protective support 7 may be located at the bottom of the viewing platform 3; and the protective support 7 can have a clearance with the sightseeing platform 3, when the guy cable 6 is broken, the upper part of the protective support 7 can support the sightseeing platform 3, in the embodiment, the protective support 7 is integrally cast with the bridge support body 1, the protective support 7 is designed to be triangular, a clearance is reserved between the top of the protective support 7 and the sightseeing platform 3, the sightseeing platform 3 is kept stable under the action of the hinge device 4 and the guy cable 6 and is not contacted with the protective support 7 under the normal state, when the guy cable 6 is broken, the bottom of the sightseeing platform 3 is contacted with the top of the protective support 7, and the protective support 7 supports the sightseeing platform 3, so that the sightseeing platform 3 is prevented from inclining to cause the safety problem of sightseeing.
Referring to fig. 1 to 8, in some alternative embodiments, the protective brackets 7 and the hinge devices 4 may be located on two opposite sides of the bridge supporting body 1, that is, when the cable 6 is broken, the portions of the viewing platform 3 on the two sides of the bridge supporting body 1 are respectively supported by the hinge devices 4 and the protective brackets 7, and the safety of the viewing platform 3 is improved by supporting the two sides together.
Referring to fig. 1 to 8, in some alternative embodiments, a guardrail 8 may be disposed above the viewing platform 3, and the guardrail 8 defines an activity space, that is, the periphery of the viewing platform 3 is surrounded by the guardrail 8, so as to prevent a visitor from carelessly dropping the viewing platform 3, and the guardrail 8 defines an activity space to limit the visitor from playing in the activity space, thereby improving the safety of the visitor in the viewing process.
The principle of the landscape platform with the vibration reduction function provided by the embodiment of the invention is as follows:
because the bridge supporting body 1 is provided, which can be a bridge pier or a bridge tower, the bridge supporting body 1 is rotatably connected with the viewing platform 3 through the hinge device, so that a viewing place can be provided for visitors for relaxation, the viewing platform 3 can rotate relative to the bridge supporting body 1 through the hinge device 4, the viewing platform 3 is connected with the girder 2 through the guy cable 6, so that the vibration displacement of the girder 2 can be transmitted to the viewing platform 3, the bottom of the viewing platform 3 is rotatably connected with the damper 5, the other end of the damper 5 is fixed on the bridge supporting body 1, when the girder 2 vibrates, because the viewing platform 3 rotates around the hinge device 4 and drives the damper 5 to move, the damper 5 provides damping force for the vibration of the girder 2, the self weight of the viewing platform 3 provides inertia force for controlling the vibration of the girder 2, the vibration damping effect of the damper 5 on the girder 2 is improved, compared with the mode that the damper 5 is arranged on a cantilever steel frame, the connecting structure is connected on the viewing platform 3 with higher rigidity, the construction cost can be saved, the steel frame structure is cancelled, the bottom space of the bridge is relatively open, the bridge is more suitable for visitors to play, the viewing platform 3 has larger gravity and can rotate relative to the bridge supporting body 1, the vibration damping effect of the damper 5 can be increased through the inertia effect, the rotating axis of the hinge device 4 is parallel to the rotating axis of the damper 5, the two can rotate on the same plane, the activity of the viewing platform 3 is not influenced, therefore, the viewing platform 3 can realize the vibration damping of the girder 2 through the damper 5 and the guy cable 6 which are arranged on the viewing platform 3 while providing a viewing field for the visitors, the damper 5 is not required to be arranged on the cantilever steel frame, the viewing platform has simple structure and high rigidity, the dead weight of the viewing platform 3 is used for providing additional inertia force for the girder 2, the additional mass is provided by the dead weight of the viewing platform 3 to provide better vibration damping effect for the main beam 2.
In the description of the present invention, 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 merely for convenience in describing the present invention 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 invention. 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, 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 foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. 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 invention. Thus, the present invention 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 landscape platform with a vibration reduction function is characterized by comprising:
the bridge comprises a bridge supporting body (1), wherein a main beam (2) is installed on the bridge supporting body (1);
the viewing platform (3) is positioned at the bottom of the main beam (2), and the viewing platform (3) is rotatably connected to the bridge support body (1) through a hinge device (4);
one end of the damper (5) is rotatably connected to the viewing platform (3), and the other end of the damper (5) is rotatably connected to the bridge supporting body (1);
one end of the inhaul cable (6) is mounted on the view platform (3), and the other end of the inhaul cable (6) is mounted on the main beam (2);
the rotation axes of the hinge device (4), the damper (5) and the inhaul cable (6) are approximately parallel.
2. The landscape platform with vibration reduction of claim 1, wherein:
the connection point of the damper (5) and the viewing platform (3) is positioned on one side of the inhaul cable (6) far away from the hinge device (4).
3. The landscape platform with vibration damping according to claim 2, wherein:
the landscape platform (3) is arranged symmetrically to the central axis along the longitudinal bridge of the main beam (2), the landscape platform (3) is connected with at least two inhaul cables (6) in a rotating mode, and the inhaul cables (6) are arranged symmetrically to the central axis along the longitudinal bridge of the main beam (2).
4. The landscape platform with vibration damping according to claim 2, wherein:
the hinge device (4) and the inhaul cable (6) are located on two opposite sides of the bridge supporting body (1), and the gravity center of the viewing platform (3) is located between the hinge device (4) and the inhaul cable (6).
5. The landscape platform with vibration reduction of claim 1, wherein:
the lateral margin of view platform (3) is provided with fixing base (9), stay cable (6) are kept away from the one end rotation of girder (2) connect in fixing base (9).
6. The landscape platform with vibration reduction of claim 1, wherein:
the rotation axis of the hinge device (4) is approximately perpendicular to the central axis of the main beam (2), the central axis is the symmetrical axis of the main beam (2) along the longitudinal bridge direction, and the included angle between the central line of the inhaul cable (6) and the horizontal plane is greater than or equal to 45 degrees.
7. The landscape platform with vibration reduction of claim 1, wherein:
the damper (5) is a viscous damper.
8. The landscape platform with vibration reduction of claim 1, wherein:
a protective support (7) is fixed on the bridge support body (1), and the protective support (7) is positioned at the bottom of the viewing platform (3);
and a gap is reserved between the protective support (7) and the viewing platform (3), and when the inhaul cable (6) is broken, the upper part of the protective support (7) supports the viewing platform (3).
9. The landscape platform with vibration reduction of claim 8, wherein:
the protective support (7) and the hinge device (4) are positioned on two opposite sides of the bridge support body (1).
10. The landscape platform with vibration reduction of claim 1, wherein:
and a guardrail (8) is arranged above the viewing platform (3), and the guardrail (8) is enclosed to form a movable space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171365.7A CN114016384B (en) | 2021-10-08 | View platform with vibration reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171365.7A CN114016384B (en) | 2021-10-08 | View platform with vibration reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114016384A true CN114016384A (en) | 2022-02-08 |
| CN114016384B CN114016384B (en) | 2024-05-28 |
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|---|---|---|---|---|
| JP2000328517A (en) * | 1999-05-17 | 2000-11-28 | Hayakawa Rubber Co Ltd | Vibration controller for cable |
| CN103696354A (en) * | 2013-12-31 | 2014-04-02 | 中铁第一勘察设计院集团有限公司 | Corridor and viewing platform integrated composite bridge structure |
| CN207091907U (en) * | 2017-07-12 | 2018-03-13 | 交通运输部天津水运工程科学研究所 | Bridge spanning the sea landscape platform |
| US20180073207A1 (en) * | 2015-03-16 | 2018-03-15 | Soletanche Freyssinet | Device for damping vibrations of a cable |
| CN112554043A (en) * | 2020-12-23 | 2021-03-26 | 中交公路规划设计院有限公司 | Transverse self-balancing antisymmetric cable-stayed bridge structure system |
| CN112942104A (en) * | 2021-04-21 | 2021-06-11 | 华北水利水电大学 | Stay cable vibration reduction device of magneto negative stiffness damper and design method |
| CN214143253U (en) * | 2020-12-18 | 2021-09-07 | 中铁大桥局集团有限公司 | Vibration reduction bridge |
| CN113445412A (en) * | 2021-07-26 | 2021-09-28 | 中铁桥研科技有限公司 | Vibration damper for controlling vortex-induced vibration of girder of large-span bridge |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000328517A (en) * | 1999-05-17 | 2000-11-28 | Hayakawa Rubber Co Ltd | Vibration controller for cable |
| CN103696354A (en) * | 2013-12-31 | 2014-04-02 | 中铁第一勘察设计院集团有限公司 | Corridor and viewing platform integrated composite bridge structure |
| US20180073207A1 (en) * | 2015-03-16 | 2018-03-15 | Soletanche Freyssinet | Device for damping vibrations of a cable |
| CN207091907U (en) * | 2017-07-12 | 2018-03-13 | 交通运输部天津水运工程科学研究所 | Bridge spanning the sea landscape platform |
| CN214143253U (en) * | 2020-12-18 | 2021-09-07 | 中铁大桥局集团有限公司 | Vibration reduction bridge |
| CN112554043A (en) * | 2020-12-23 | 2021-03-26 | 中交公路规划设计院有限公司 | Transverse self-balancing antisymmetric cable-stayed bridge structure system |
| CN112942104A (en) * | 2021-04-21 | 2021-06-11 | 华北水利水电大学 | Stay cable vibration reduction device of magneto negative stiffness damper and design method |
| CN113445412A (en) * | 2021-07-26 | 2021-09-28 | 中铁桥研科技有限公司 | Vibration damper for controlling vortex-induced vibration of girder of large-span bridge |
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