CN206706552U - A kind of cable-stayed bridge ballast formula lateral vibration absorbing device - Google Patents
A kind of cable-stayed bridge ballast formula lateral vibration absorbing device Download PDFInfo
- Publication number
- CN206706552U CN206706552U CN201720255412.9U CN201720255412U CN206706552U CN 206706552 U CN206706552 U CN 206706552U CN 201720255412 U CN201720255412 U CN 201720255412U CN 206706552 U CN206706552 U CN 206706552U
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- cable
- spring
- beam body
- bridge
- steel plate
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a kind of cable-stayed bridge ballast formula lateral vibration absorbing device, mass one end is connected by sliding rubber blanket with beam body bottom plate, the other end is connected by junction steel plate, spring, damping element and spring displacement guide rod with beam body stringer board, composition tuned mass damper (TMD)；Spring is connected by being connected between spring displacement guide rod and junction steel plate with high-strength bolt between damping element and junction steel plate using high-strength bolt.By being reequiped to existing large span stayed-cable bridge auxiliary pier saddle weight, plus components such as damping element and springs, the tuned mass damper (TMD) of bridge lateral vibration can be reduced under dynamic load by forming, and effectively reduce the oscillation crosswise response of bridge, reduce the earthquake of bridge.The vertical force component of suspension cable, simple structure are cheap when can balance static load simultaneously.
Description
Technical field
A kind of cable-stayed bridge ballast formula lateral vibration absorbing device is the utility model is related to, more particularly to a kind of cable-stayed bridge ballast formula
Lateral vibration absorbing device.
Background technology
Earthquake is one of burst natural calamity the most serious, and its harm is huge, such as Chilean earthquake, Wenchuan earthquake, Tangshan
In the earthquakes such as earthquake, because science of bridge building is seriously damaged, earthquake region traffic lines have been cut off, have caused the huge tired of disaster relief work
Difficulty, secondary disaster is aggravated, result in huge economic loss.
Cable-stayed bridge has the characteristics of flexible big, damping is low, easily in dynamic load as large-scale Complicated Spatial Structure
Effect is lower to be vibrated.Especially under seismic loading, easily cause the significantly vibration of superstructure and produced in key position
Raw big internal force, so as to cause structure damage inactivation.Additionally, because the flexibility and spatial character of Cable-Stayed Bridge Structure, cable-stayed bridge exist
Vertical, transverse direction can also be shown under earthquake motive force load action and the characteristics of the strong lotus root of torsional mode is closed.At present, cable-stayed bridge
Vibratory response research under geological process is more, is largely the extensional vibration for reducing bridge for vibration absorber, and
Device for reducing bridge lateral vibration is less.
Large span stayed-cable bridge is generally provided with Sarasota ballast area, the pressure in the three kinds of regions in auxiliary pier ballast area and span centre ballast area
Weight, can ensure that the main beam linear of cable-stayed bridge and structural internal force are reasonable, the Suo Li of suspension cable can be balanced by ballast load.Adjust
Humorous mass damper (TMD) is one kind of the passive dissipative cell of structure.It is in tall and slender structure and high-level structure, to structural vibration
Control effect it is more obvious.Tuned mass damper (TMD) is made up of damping element, spring and mass, damping element bag
Containing viscous damper, viscoelastic damper and oil damper etc..Its damping effect shows that minor structure reaches resonance with main structure,
The vibrational energy for the damping material consumption minor structure that consumes energy, absorb in the constantly vibrational energy of consumption minor structure and constantly main structure
The dynamic respons of main structure are reduced while vibrational energy.
Existing shock insulation, energy-dissipating device in tower (pier) beam junction can realize longitudinal damping of girder, but still can not have
Effect reduces the horizontal vibration of girder.
The content of the invention
The purpose of this utility model is to solve the problem that horizontal shock-absorbing effect is poor in existing highway bridge damper, there is provided
A kind of cable-stayed bridge ballast formula lateral vibration absorbing device, can reduce transverse-vibration of the cable-stayed bridge under the dynamic load functions such as earthquake, wind
Dynamic response, while the effect of ballast can also be played in static load, balance the vertical force component of suspension cable.
The utility model realizes that the technical scheme of above-mentioned purpose is：Comprising mass, junction steel plate, spring, beam body stringer board,
Slide rubber blanket, damping element, spring displacement guide rod, beam body bottom plate；Mass one end is by sliding rubber blanket and beam body bottom
Plate is connected, and the other end is connected by junction steel plate, spring, damping element and spring displacement guide rod with beam body stringer board, and composition is adjusted
Humorous mass damper (TMD)；Spring between spring displacement guide rod and junction steel plate with high-strength bolt by being connected, damping element
It is connected between junction steel plate using high-strength bolt.
By such scheme, ballast is used in the quality and beam body of the mass in described tuned mass damper (TMD)
Quality be equal.
By such scheme, described tuned mass damper (TMD) is symmetrically distributed in the center of beam body.
The beneficial effects of the utility model：By being reequiped to existing large span stayed-cable bridge auxiliary pier saddle weight, add
The component such as damping element and spring, the tuned mass damper (TMD) that can reduce bridge lateral vibration under dynamic load is formed,
Effectively reduce the oscillation crosswise response of bridge, reduce the earthquake of bridge.Vertical point of suspension cable when can balance static load simultaneously
Power, simple structure are cheap.
Brief description of the drawings
Fig. 1 is structure schematic top plan view of the utility model in beam section；
Fig. 2 is structure of the main view of the utility model in beam section.
Embodiment
The utility model includes mass 1, junction steel plate 2, spring 3, beam body stringer board 4, slip rubber blanket 5, damping element
6th, spring displacement guide rod 7, beam body bottom plate 8；The one end of mass 1 is connected by sliding rubber blanket 5 with beam body bottom plate 8, the other end
It is connected by junction steel plate 2, spring 3, damping element 6 and spring displacement guide rod 7 with beam body stringer board 4, composition tuning quality resistance
Buddhist nun's device (TMD)；Spring 3 between spring displacement guide rod 7 and junction steel plate 2 with high-strength bolt by being connected, and damping element 6 is with connecting
Connect and connected using high-strength bolt between steel plate 2.The quality of mass 1 is equal with the quality of saddle weight in cable-stayed bridge.Tuning
Mass damper (TMD) is symmetrically distributed in the center of beam body.
Claims (3)
- A kind of 1. cable-stayed bridge ballast formula lateral vibration absorbing device, it is characterised in that：Include mass (1), junction steel plate (2), spring (3), beam body stringer board (4), slip rubber blanket (5), damping element (6), spring displacement guide rod (7), beam body bottom plate (8)；Quality Block (1) one end is connected by sliding rubber blanket (5) with beam body bottom plate (8), and the other end passes through junction steel plate (2), spring (3), resistance Buddhist nun's element (6) and spring displacement guide rod (7) are connected with beam body stringer board (4), composition tuned mass damper (TMD)；Spring (3) By being connected between spring displacement guide rod (7) and junction steel plate (2) with high-strength bolt, damping element (6) and junction steel plate (2) Between using high-strength bolt connect.
- 2. cable-stayed bridge ballast formula lateral vibration absorbing device according to claim 1, it is characterised in that：Described tuning quality resistance The quality of mass (1) in Buddhist nun's device (TMD) is equal with the quality for being used for ballast in beam body.
- 3. cable-stayed bridge ballast formula lateral vibration absorbing device according to claim 1 or 2, it is characterised in that：Described tuning matter Amount damper (TMD) is symmetrically distributed in the center of beam body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255412.9U CN206706552U (en) | 2017-03-14 | 2017-03-14 | A kind of cable-stayed bridge ballast formula lateral vibration absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255412.9U CN206706552U (en) | 2017-03-14 | 2017-03-14 | A kind of cable-stayed bridge ballast formula lateral vibration absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206706552U true CN206706552U (en) | 2017-12-05 |
Family
ID=60469955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720255412.9U Expired - Fee Related CN206706552U (en) | 2017-03-14 | 2017-03-14 | A kind of cable-stayed bridge ballast formula lateral vibration absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206706552U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974925A (en) * | 2017-12-28 | 2018-05-01 | 中交公路养护工程技术有限公司 | A kind of two-way preloading bridge block |
| CN109629529A (en) * | 2019-01-25 | 2019-04-16 | 天津大学 | A kind of gate Vertical Vibration Reduction and root edge adjustable systems |
| CN110822000A (en) * | 2019-11-18 | 2020-02-21 | 珠海格力电器股份有限公司 | Vibration absorber with adjustable vibration reduction frequency band and air conditioning unit |
| CN112160439A (en) * | 2020-09-30 | 2021-01-01 | 广州大学 | Swinging tuned mass damper |
| CN112922184A (en) * | 2021-03-22 | 2021-06-08 | 大连理工大学 | TMD vibration damper with working switch |
| CN115574245A (en) * | 2022-09-23 | 2023-01-06 | 中国十七冶集团有限公司 | Anti-seismic system with large-volume and weight-specification hopper screen structure |
| CN117488654A (en) * | 2023-09-28 | 2024-02-02 | 中交公路规划设计院有限公司 | System and method for restraining vertical vortex vibration of main girder of large-span suspension bridge |
-
2017
- 2017-03-14 CN CN201720255412.9U patent/CN206706552U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974925A (en) * | 2017-12-28 | 2018-05-01 | 中交公路养护工程技术有限公司 | A kind of two-way preloading bridge block |
| CN109629529A (en) * | 2019-01-25 | 2019-04-16 | 天津大学 | A kind of gate Vertical Vibration Reduction and root edge adjustable systems |
| CN110822000A (en) * | 2019-11-18 | 2020-02-21 | 珠海格力电器股份有限公司 | Vibration absorber with adjustable vibration reduction frequency band and air conditioning unit |
| CN110822000B (en) * | 2019-11-18 | 2023-12-22 | 珠海格力电器股份有限公司 | Vibration absorber with adjustable vibration reduction frequency band and air conditioning unit |
| CN112160439A (en) * | 2020-09-30 | 2021-01-01 | 广州大学 | Swinging tuned mass damper |
| CN112922184A (en) * | 2021-03-22 | 2021-06-08 | 大连理工大学 | TMD vibration damper with working switch |
| CN115574245A (en) * | 2022-09-23 | 2023-01-06 | 中国十七冶集团有限公司 | Anti-seismic system with large-volume and weight-specification hopper screen structure |
| CN117488654A (en) * | 2023-09-28 | 2024-02-02 | 中交公路规划设计院有限公司 | System and method for restraining vertical vortex vibration of main girder of large-span suspension bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20210314 |