CN1298932C - Oriented vertical adjustable tuning mass bumper - Google Patents
Oriented vertical adjustable tuning mass bumper Download PDFInfo
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- CN1298932C CN1298932C CNB2004100876642A CN200410087664A CN1298932C CN 1298932 C CN1298932 C CN 1298932C CN B2004100876642 A CNB2004100876642 A CN B2004100876642A CN 200410087664 A CN200410087664 A CN 200410087664A CN 1298932 C CN1298932 C CN 1298932C
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- trestle
- harbor
- overpass
- vibration damping
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 description 11
- 230000035939 shock Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a vibration damping controller of a wide span overpass, a harbor trestle and relative structures, which belongs to the technical field of civil engineering structure vibration damping. The present invention provides the vibration damping controller of the overpass, the harbor trestle and the relative structures to reduce resonance reaction of the bridge structure under the action of pedestrian load and solve the safe problems of the overpass, the harbor trestle and the relative structures. The present invention is characterized in that mass blocks are formed by overlapping single chip steel plates 3 which are connected by screw bolts 4, the mass is adjustable, and the application is flexible. Simultaneously, both sides of a viscous oil damper 6 are vertically provided with straight guiding rods 5 in the vertical direction to prevent the viscous oil damper from swinging to one side. The present invention has the advantages of simple structure, convenient construction and low cost, and can effectively reduce the resonance reaction of the overpass, the harbor trestle and the relative structures. The vibration damping controller can be used for engineering of the wide span overpass, the harbor trestle and the relative structures and can generate great economic benefits and social benefits.
Description
Technical field
The invention belongs to the civil engineering structure antivibration area, relate to the design that large span pedestrian overcrossing, harbour trestle and dependency structure use the shock absorber of steel plate, guide peg, spring and viscous oil damper composition.
Background technology
Along with the development of urban construction, it is more and more wideer that road becomes.As guaranteeing quick, the safe pedestrian overcrossing by road of pedestrian, its span is also increasing.For this class large span pedestrian overcrossing, although the strength and stiffness ratio is easier to meet design requirement, the frequency of vertical motion is all lower, has only usually about 2 hertz.And statistics shows, the frequency the when people walks also is about 2 hertz, therefore, easily in the vertical resonance that produces, causes the panic even generation bridge collapse of pedestrian when the pedestrian passes through overline bridge, influences the normal use of overline bridge.Equally, also there are resonance problem in harbour trestle and other similar structures.Because the structural vibration control technology constantly is applied in engineering, it equally also is very significant therefore seeking suitable control method at the resonance problem of overline bridge.
Tuned mass damper, TMD (Tuned Mass Damper is called for short TMD) is a kind of damping control device of classics, and it is a vibrational system of being made up of spring, damper and mass.When it installed structurally, its intrinsic frequency was generally adjusted to the natural frequency near structure, and structural vibration causes the resonance of TMD, and the vibrating inertia force of tuned mass damper, TMD reacts on structure itself, reaches the purpose that reduces structural response.
But TMD has very big correlation to the control action of structural vibration and the frequency of structure and TMD itself.When the frequency tuning of TMD when consistent with the natural frequency of structure, can reach excellent vibration damping effect; When the natural frequency of the frequency of TMD and structure was inconsistent, effectiveness in vibration suppression was poor, even can aggravate the reaction of original structure.In the actual engineering, the frequency of structural vibration changes with the variation of environmental aspect through regular meeting, and for traditional TMD vibration absorber, it is tuning that its frequency is difficult to carry out after installation again, therefore can cause the frequency misalignment phenomenon of TMD.
Summary of the invention
The objective of the invention is for large span People's Bank of China overpass, harbour trestle and dependency structure provide a kind of damping control device, solve the resonance problem of bridge construction under People's Bank of China's load action.
Technical scheme of the present invention is that mass adopts single steel plate to be superimposed, and connects with bolt, but reaches the purpose of quality flexible modulation.When the frequency of TMD need be carried out when tuning, the thickness that only needs to change steel plate can be realized.Simultaneously, wave to avoid side direction along vertically guide peg being set vertically the both sides of viscous oil damper, guarantees that the frequency of TMD vertical motion is consistent with the natural frequency of structure.
Effect of the present invention and benefit are that this vibration absorber can reduce the resonance problem of bridge construction under People's Bank of China's load action, guarantee Structure Safety for Bridge.Applicable to large span People's Bank of China overpass, harbour trestle and dependency structure, can produce huge economic benefit and social benefit.
Description of drawings
Accompanying drawing 1 is an oriented vertical adjustable TMD shock absorber facade structures schematic diagram.
Among the figure: 1 backing plate, 2 springs, 3 steel plates, 4 bolts, 5 guide pegs, 6 viscous oil dampers, 7 casees beam base plates.
The specific embodiment
Be described in detail preferred forms of the present invention below in conjunction with technical scheme and accompanying drawing.
The oriented vertical adjustable TMD shock absorber that the present invention proposes as depicted in figs. 1 and 2.Each shock absorber is made up of four springs, a viscous oil damper, two guide pegs and some steel plates.Shock absorber is installed on the case beam base plate 7 of bridge construction.Specific practice is to offer earlier bolt hole and guide peg perforation on all steel plates 3 in advance.The upper end of spring 2 and damper 6 is welded on the block plate 3, and the lower end with spring 2 and damper 6 is welded on the backing plate 1 then, backing plate 1 is welded on the steel case beam base plate 7 of bridge construction again.Equally the guide peg hole that steel plate 3 is reserved is vertically vertically passed on two guide pegs, 5 edges, the lower end is welded on the backing plate 1, welding with backing is connected on the base plate 7 of steel case beam again.At last, remaining steel plate 3 is pierced into from the upper end of guide peg 5, all steel plates 3 are fixed together, constitute the mass of TMD vibration insulating system with bolt 4.Wherein, guide peg 5 can adopt the steel pipe manufacturing of diameter 30-50 millimeter.
The design of spring 2 and steel plate 3 will guarantee that the frequency of TMD shock absorber vibration is consistent with the frequency of structural vibration.When needing the frequency of tuning TMD shock absorber vibration in actual engineering, the thickness (promptly changing the quantity of stack steel disc) that only needs to change steel plate can be realized.The effect of guide peg 3 is to limit mass and only vertically is being subjected to displacement, and avoids its side direction to wave, and guarantees that the frequency of TMD shock absorber vibration is consistent with structure vertical motion frequency.
Claims (1)
1. an oriented vertical adjustable tuning mass bumper is characterized in that mass is made by single steel plate (3) stack, and links together with bolt (4) that the both sides of viscous oil damper are along guide peg (5) vertically vertically is set simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100876642A CN1298932C (en) | 2004-11-23 | 2004-11-23 | Oriented vertical adjustable tuning mass bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100876642A CN1298932C (en) | 2004-11-23 | 2004-11-23 | Oriented vertical adjustable tuning mass bumper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1614148A CN1614148A (en) | 2005-05-11 |
| CN1298932C true CN1298932C (en) | 2007-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100876642A Expired - Fee Related CN1298932C (en) | 2004-11-23 | 2004-11-23 | Oriented vertical adjustable tuning mass bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1298932C (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100635098B1 (en) * | 2005-06-27 | 2006-10-17 | 연세대학교 산학협력단 | Girder bridge protection device using sacrifice means |
| CN101457554B (en) * | 2007-12-14 | 2011-01-19 | 尹学军 | Damping ratio adjustable tuning quality damper |
| CN101457553B (en) * | 2007-12-14 | 2012-01-11 | 尹学军 | Spring stiffness adjustable tuning quality damper |
| CN102277827B (en) * | 2011-04-27 | 2014-03-05 | 清华大学 | Piezoelectric energy-capturing type tuning quality shock absorber |
| CN103276664A (en) * | 2011-04-27 | 2013-09-04 | 清华大学 | Piezoelectric energy-harvesting tuned mass damper |
| CN103016587B (en) * | 2012-12-12 | 2015-04-01 | 上海交通大学 | Semi-driving type variable stiffness dynamic vibration absorber made from conical springs |
| CN103016605B (en) * | 2012-12-17 | 2014-08-06 | 南京航空航天大学 | Liquid resistance type dynamic vibration absorber with adjustable parameters |
| CN103306395A (en) * | 2013-07-12 | 2013-09-18 | 山东大学 | Multi-dimensional adjustable vibration reduction control device |
| CN103835384A (en) * | 2013-12-30 | 2014-06-04 | 同济大学 | Mass resonance regulating and vibration damping device |
| CN104929268B (en) * | 2015-07-15 | 2017-05-03 | 大连理工大学 | Frequency continuously adjustable mass damper |
| CN106400996A (en) * | 2016-09-07 | 2017-02-15 | 同济大学 | Vertical frequency adjustment mass damper for model test and design method of vertical frequency adjustment mass damper |
| CN106436947B (en) * | 2016-09-07 | 2019-08-06 | 同济大学 | A kind of damping device and its design method for longspan structure |
| CN106702885B (en) * | 2016-12-23 | 2019-02-01 | 大连理工大学 | A kind of shift quality damper system of Bridge Seismic |
| CN107060131A (en) * | 2017-06-15 | 2017-08-18 | 华侨大学 | A kind of distributed tuned mass damper, TMD |
| CN107354860B (en) * | 2017-06-29 | 2019-06-11 | 哈尔滨工业大学 | Ellipse thin-wall construction tuned mass damper for bridge cable vibration control |
| CN107938497A (en) * | 2018-01-02 | 2018-04-20 | 湖南省潇振工程科技有限公司 | Vertical tuned mass damper |
| CN109578510B (en) * | 2018-12-17 | 2020-09-15 | 重庆大学 | Intelligent undamped dynamic vibration reduction system |
| CN111576192A (en) * | 2020-06-10 | 2020-08-25 | 华东交通大学 | non-Newtonian fluid tuned mass damper for overhead bridge |
| CN112160195A (en) * | 2020-08-21 | 2021-01-01 | 中铁工程设计咨询集团有限公司 | Road bed bump leveller and road bed bump leveller system of shaking |
| CN112178105A (en) * | 2020-09-04 | 2021-01-05 | 宝能(广州)汽车研究院有限公司 | Dynamic vibration absorber and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276582Y (en) * | 1997-01-28 | 1998-03-18 | 周云 | Stiffening arc board energy consuming dampener |
| JP2001124137A (en) * | 1999-10-22 | 2001-05-08 | Iijima Kenchiku Jimusho:Kk | Vibration damping device for pole |
| CN1448597A (en) * | 2003-05-01 | 2003-10-15 | 东南大学 | Engineering structure multidimensional damping device |
-
2004
- 2004-11-23 CN CNB2004100876642A patent/CN1298932C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276582Y (en) * | 1997-01-28 | 1998-03-18 | 周云 | Stiffening arc board energy consuming dampener |
| JP2001124137A (en) * | 1999-10-22 | 2001-05-08 | Iijima Kenchiku Jimusho:Kk | Vibration damping device for pole |
| CN1448597A (en) * | 2003-05-01 | 2003-10-15 | 东南大学 | Engineering structure multidimensional damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1614148A (en) | 2005-05-11 |
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Granted publication date: 20070207 Termination date: 20101123 |