CN107354860A - Ellipse thin-wall construction tuned mass damper for bridge cable vibration control - Google Patents
Ellipse thin-wall construction tuned mass damper for bridge cable vibration control Download PDFInfo
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- CN107354860A CN107354860A CN201710514677.0A CN201710514677A CN107354860A CN 107354860 A CN107354860 A CN 107354860A CN 201710514677 A CN201710514677 A CN 201710514677A CN 107354860 A CN107354860 A CN 107354860A
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- wall construction
- vibration control
- mass damper
- tuned mass
- ellipse
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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
-
- 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
-
- 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
For the ellipse thin-wall construction tuned mass damper of bridge cable vibration control, it is related to a kind of ellipse thin-wall construction tuned mass damper, and in particular to a kind of ellipse thin-wall construction tuned mass damper for bridge cable vibration control.The present invention in order to solve the TMD of ordinary construction form rigidity and mass be all vertically downward, cause in vibration processes can not quality assurance block all the time perpendicular to cable movement so that the problem of theory analysis is complex, and effectiveness in vibration suppression is deteriorated.The present invention includes drag-line sleeve, quality cylinder, mass-adjustable block and four steel cylinders, drag-line sleeve is inserted into quality cylinder, mass-adjustable block is fixedly mounted on the inwall of quality cylinder, and four steel cylinders are along the circumferential direction uniformly arranged between the inwall of drag-line sleeve outer wall and quality cylinder.The invention belongs to construction of road and bridge field.
Description
Technical field
The present invention relates to a kind of ellipse thin-wall construction tuned mass damper, and in particular to one kind is shaken for bridge cable
The ellipse thin-wall construction tuned mass damper of dynamic control, belongs to construction of road and bridge field.
Background technology
With the globalization of economic development, urban construction is also evolving, while a large amount of Important Projects are built we
Also be faced with numerous challenges, how violent oscillatory motion of the effective control structure under the effect such as wind, rain, earthquake, turn into state
The emphasis of inside and outside focus of attention.Core texture of the bridge structure as National Traffic System, it is whether safe by direct pass
It is to national interests, the safety and vital interests problem of the even numerous common people.
Cable-stayed bridge is most representative, and cable-stayed bridge is called Cable stayed bridge, is mainly made up of Sarasota, girder, drag-line three parts, wherein
Girder is pressurized by curved, drag-line tension, Sarasota, and wherein suspension cable subjects the load that girder transmits, and supporting role is played to girder.
Cable-stayed bridge still suffers from some problems as relatively new structure type in real work, big such as bridge floor beam and suspension cable
Amplitude vibrations.The length for the structure type and material characteristicses, under normal circumstances suspension cable that are due to suspension cable itself of tracing it to its cause
Thin ratio is very big so that and stayed structure has larger flexibility and less damping, thus under the load action of nature, very
The Non-Linear Vibration of large magnitude, such as most common rain wind induced vibration under wind and rain load collective effect etc. easily occurs, because
And drag-line violent oscillatory motion is the major reason of bridge damage.The structure dress of most widely used control Inclined Cable Vibration at this stage
Viscous damper is set to, but passes through practice test, because the factors such as viscous damping construction itself and installation site cause its vibration damping
Effect is not highly desirable.Concrete reason include it is following some：Viscous damper is typically mounted at the end of suspension cable, it is impossible to has
Effect control suspension cable first-order modal formation displacement maximum, and in practice, the end portion vibration amplitude of each suspension cable is compared
Smaller in span centre, larger displacement can not occur for damper itself, therefore caused inertia force is also relatively small, can not be effective
The damper that plays the inhibitory action of suspension cable, one end of this external damper are connected with bridge floor beam, easily with bridge floor generation
Coupled vibrations, so as to aggravate the vibration of drag-line.Therefore the actual effectiveness in vibration suppression of viscous damper differs larger with theory.
So far we need to use the guy cable control apparatus of other structures form, it is easy to expect using theoretical quite ripe
Tuned mass damper, due to itself construct, make TMD that there is natural advantage to control inhaul cable vibration, such as can install
It is simple etc. in the optional position of drag-line, simple structure, installation and maintenance, and test result indicates that its validity to cable control
On the basis of, Tabatabai and Mehrabi A B propose to control the idea of Inclined Cable Vibration using TMD.TMD is controlled at this stage
Technology processed is ripe already, and is used widely on skyscraper and bridge at home and abroad, by practice test, its vibration damping
Work well, meet requirement.In addition TMD has good economic competitiveness in installation, maintenance, for TMD is used for
Cable control, it is only necessary to carry out a large amount of numerical simulations and experiment, parameter reasonable in design, can have other dampers not possess
Inherent advantage, therefore research TMD suppression Inclined Cable Vibration just has good technical advantage and economic benefit.
But the TMD of ordinary construction form is used for inhaul cable vibration that control still suffers from some problems, for example, suspension cable typically with
Horizontal plane is angled, and the TMD of ordinary construction form rigidity and mass are all vertically downward, to cause vibrated
In journey can not quality assurance block all the time perpendicular to cable movement so that theory analysis is complex, effectiveness in vibration suppression is deteriorated；This
Multi-direction vibration outside plane and in plane can occur for outer suspension cable, and the TMD of ordinary construction form can only be controlled in general sense
One direction vibration processed.
The content of the invention
The present invention is vertically downward, to cause vibrating to solve the TMD of ordinary construction form rigidity and mass
During can not quality assurance block all the time perpendicular to cable movement so that theory analysis is complex, effectiveness in vibration suppression is deteriorated
The problem of, and then propose the ellipse thin-wall construction tuned mass damper for bridge cable vibration control.
The present invention adopts the technical scheme that to solve the above problems：The present invention include drag-line sleeve, quality cylinder, can be quenched
Gauge block and four steel cylinders, drag-line sleeve are inserted into quality cylinder, and mass-adjustable block is fixedly mounted on the inwall of quality cylinder, four
Steel cylinder is along the circumferential direction uniformly arranged between the inwall of drag-line sleeve outer wall and quality cylinder.
The beneficial effects of the invention are as follows：1st, the present invention efficiently solves the problems, such as self gravitation, can be fastened around random angle
The oblique pull of degree is locked, and ensures quality, and do the relative motion perpendicular to drag-line all the time；2nd, the torque resistant of oval structure of the invention
Rigidity is big, and integrally-built center of rigidity and mass centre overlap, therefore will not occur under outer load action relative to oblique pull
Rope torsional displacement, and suspension cable hardly twists in itself, therefore the constructional device stability is high；3rd, the present invention is controllable
It is identical to make the rigidity of multi-direction vibration and all directions, then drag-line-TMD three dimension systems can be simplified to plane one direction vibration system
System, enormously simplify theory analysis；4th, the optional position of suspension cable can be fixed on, the single order mode of oscillation of suspension cable is entered
The effective control of row, structure self maintained convenience, simple structure, financial cost are low；The overall appearance of suspension cable structure is not influenceed
Property；5th, the present invention is made up of four oval steel loops and quality loop, is fastened around on suspension cable, ellipse when Cable forces vibrate
Circle can absorb energy by the of reciprocating vibration of itself.
Brief description of the drawings
Fig. 1 is the top view of the present invention；
Fig. 2 is the dimensional structure diagram of the present invention；
Fig. 3 is the schematic diagram that the horizontal direction power of steel cylinder calculates with deformation relationship；
Fig. 4 is the schematic diagram that the vertical direction power of steel cylinder calculates with deformation relationship.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The ellipse thin-wall construction tuned mass damper of vibration control includes drag-line sleeve 1, quality cylinder 2, mass-adjustable block 3 and four
Steel cylinder 4, drag-line sleeve 1 are inserted into quality cylinder 2, and mass-adjustable block 3 is fixedly mounted on the inwall of quality cylinder 2, four steel cylinders 4
Along the circumferential direction it is uniformly arranged between the inwall of the outer wall of drag-line sleeve 1 and quality cylinder 2.
Embodiment two：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The diameter of drag-line sleeve 1 of the ellipse thin-wall construction tuned mass damper of vibration control determines by suspension cable overall diameter, drag-line
The wall thickness of sleeve 1 is according to the optional 3~10mm of requirement of engineering.
Embodiment three：Illustrate present embodiment with reference to Fig. 3 and Fig. 4, be used for bridge cable described in present embodiment
The cross section of the steel cylinder 4 of the ellipse thin-wall construction tuned mass damper of vibration control is ellipse.According to suspension cable power
Characteristic and vibration control requirement, it is determined that the major axis in oval steel cylinder section and minor axis dimension and steel cylinder wall thickness.Using energy method,
The oval free end of steel cylinder 4 is calculated under the conditions of large deformation according to Fig. 3, power in the horizontal direction and displacement relation curve (x~Fx
(x)), and 3 order polynomial fitting results are respectively adopted, as the power and distorted pattern in the horizontal direction of steel cylinder 4.Using energy
Method, the oval free end of steel cylinder 4 is calculated under the conditions of large deformation according to Fig. 4, power and the displacement relation curve of in the vertical direction
(y~Fy(y)), and 2 order polynomial fitting results, as the power and distorted pattern on the vertical direction of steel cylinder 4.Make ellipse thin-walled
The major axes orientation of structurally tuned four oval steel cylinders of mass damper is parallel with horizontally or vertically direction, according to four ellipses
The geometrical relationship of shape steel cylinder 4, use horizontally and vertically it is ineffective do not couple with deformation relationship it is assumed that calculate obtain it is ellipse in the present invention
Power and distorted pattern in the horizontal direction of round thin-wall construction tuned mass damper, the non-linear rigidity mould as damper
Type.Using secant equivalent method, the equivalent linear stiffness of damper is calculated, as damper designs stiffness parameters.
Embodiment four：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The internal diameter of the quality cylinder 2 of the ellipse thin-wall construction tuned mass damper of vibration control is by the external diameter of drag-line sleeve 1 and ellipse
The short axle of steel cylinder 2 determines；The gross mass of quality cylinder 2 and mass-adjustable block 3 by suspension cable dynamic characteristics, damper designs rigidity and tiltedly
Inhaul cable vibration control requires determination, and the mass of mass-adjustable block 3 can be taken as the 3~10% of the mass of quality cylinder 2；The wall thickness of quality cylinder 3 by
The internal diameter and quality of quality cylinder 2 determine.
Embodiment five：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The inwall of the quality cylinder 2 of the ellipse thin-wall construction tuned mass damper of vibration control is connected by the outer wall of bolt 5 and steel cylinder 3
Connect.Other compositions and annexation are identical with embodiment one.
Embodiment six：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The outer wall of the drag-line sleeve 1 of the ellipse thin-wall construction tuned mass damper of vibration control passes through bolt 5 and the outer wall of steel cylinder 3
Connection.Other compositions and annexation are identical with embodiment one.
Embodiment seven：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The bolt 5 of mass-adjustable block 3 of the ellipse thin-wall construction tuned mass damper of vibration control is connected with the outer wall of steel cylinder 3.Its
It is formed and annexation is identical with embodiment one.
Embodiment eight：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The drag-line sleeve 1 of the ellipse thin-wall construction tuned mass damper of vibration control is made up of two semicircle curved surface 1-1 connections.
Other compositions and annexation are identical with embodiment one.
Embodiment nine：Illustrate present embodiment with reference to Fig. 1 and Fig. 2, be used for bridge cable described in present embodiment
The quality cylinder 2 of the ellipse thin-wall construction tuned mass damper of vibration control is made up of two semicircle curved surface 2-1 connections.Its
It is formed and annexation is identical with embodiment one.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical spirit of the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent substitution and improvement for being made to above example etc., still
Belong within the protection domain of technical solution of the present invention.
Claims (7)
1. the ellipse thin-wall construction tuned mass damper for bridge cable vibration control, it is characterised in that：It is described to be used for
The ellipse thin-wall construction tuned mass damper of bridge cable vibration control includes drag-line sleeve (1), quality cylinder (2), adjustable
Mass (3) and four steel cylinders (4), drag-line sleeve (1) are inserted into quality cylinder (2), and mass-adjustable block (3) is fixedly mounted on matter
On the inwall of graduated cylinder (2), four steel cylinders (4) are along the circumferential direction uniformly arranged in the interior of drag-line sleeve (1) outer wall and quality cylinder (2)
Between wall.
2. it is used for the ellipse thin-wall construction tuned mass damper of bridge cable vibration control according to claim 1, its
It is characterised by：The cross section of steel cylinder (3) is ellipse.
3. it is used for the ellipse thin-wall construction tuned mass damper of bridge cable vibration control according to claim 1, its
It is characterised by：The inwall of quality cylinder (2) is connected by bolt (5) with the outer wall of steel cylinder (4).
4. it is used for the ellipse thin-wall construction tuned mass damper of bridge cable vibration control according to claim 1, its
It is characterised by：The outer wall of drag-line sleeve (1) is connected by bolt (5) with the outer wall of steel cylinder (4).
5. it is used for the ellipse thin-wall construction tuned mass damper of bridge cable vibration control according to claim 1, its
It is characterised by：Mass-adjustable block (3) is connected with the inwall of quality cylinder (2).
6. it is used for the ellipse thin-wall construction tuned mass damper of bridge cable vibration control according to claim 1, its
It is characterised by：Drag-line sleeve (1) is made up of two semicircular rings (1-1).
7. it is used for the ellipse thin-wall construction tuned mass damper of bridge cable vibration control according to claim 1, its
It is characterised by：Quality cylinder (2) is made up of two semicircular cylinders (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514677.0A CN107354860B (en) | 2017-06-29 | 2017-06-29 | Ellipse thin-wall construction tuned mass damper for bridge cable vibration control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514677.0A CN107354860B (en) | 2017-06-29 | 2017-06-29 | Ellipse thin-wall construction tuned mass damper for bridge cable vibration control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107354860A true CN107354860A (en) | 2017-11-17 |
| CN107354860B CN107354860B (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710514677.0A Active CN107354860B (en) | 2017-06-29 | 2017-06-29 | Ellipse thin-wall construction tuned mass damper for bridge cable vibration control |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301325A (en) * | 2018-04-09 | 2018-07-20 | 哈尔滨工业大学 | Nonuniformity surface wind resistance suspension cable |
| CN109594473A (en) * | 2018-12-24 | 2019-04-09 | 浙江工业大学 | Cyclic annular On A Retrofitted Damper for inhibiting bridge stay cable to vibrate |
| CN115163729A (en) * | 2022-07-13 | 2022-10-11 | 重庆大学 | Circumferential array type inhaul cable vibration energy dissipation ring based on acoustic black hole beam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292967B1 (en) * | 1999-09-14 | 2001-09-25 | Construction Technology Laboratories, Inc. | TMD-damped stay cable and method and TMD |
| CN1614148A (en) * | 2004-11-23 | 2005-05-11 | 大连理工大学 | Oriented vertical adjustable tuning mass bumper |
| KR20060062372A (en) * | 2004-12-03 | 2006-06-12 | 현대자동차주식회사 | Structure for mass damper auto shift cable |
| CN102518040A (en) * | 2011-11-23 | 2012-06-27 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN105156553A (en) * | 2015-09-08 | 2015-12-16 | 同济大学 | Damper with equivalent rotating inertia mass |
| CN105951596A (en) * | 2016-05-23 | 2016-09-21 | 长安大学 | Stay cable built-in type shock absorption damper |
-
2017
- 2017-06-29 CN CN201710514677.0A patent/CN107354860B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6292967B1 (en) * | 1999-09-14 | 2001-09-25 | Construction Technology Laboratories, Inc. | TMD-damped stay cable and method and TMD |
| CN1614148A (en) * | 2004-11-23 | 2005-05-11 | 大连理工大学 | Oriented vertical adjustable tuning mass bumper |
| KR20060062372A (en) * | 2004-12-03 | 2006-06-12 | 현대자동차주식회사 | Structure for mass damper auto shift cable |
| CN102518040A (en) * | 2011-11-23 | 2012-06-27 | 深圳大学 | Shock absorption damping device for bridge cable or suspender |
| CN105156553A (en) * | 2015-09-08 | 2015-12-16 | 同济大学 | Damper with equivalent rotating inertia mass |
| CN105951596A (en) * | 2016-05-23 | 2016-09-21 | 长安大学 | Stay cable built-in type shock absorption damper |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301325A (en) * | 2018-04-09 | 2018-07-20 | 哈尔滨工业大学 | Nonuniformity surface wind resistance suspension cable |
| CN108301325B (en) * | 2018-04-09 | 2024-04-09 | 哈尔滨工业大学 | Non-uniform surface wind-resistant stay cable |
| CN109594473A (en) * | 2018-12-24 | 2019-04-09 | 浙江工业大学 | Cyclic annular On A Retrofitted Damper for inhibiting bridge stay cable to vibrate |
| CN115163729A (en) * | 2022-07-13 | 2022-10-11 | 重庆大学 | Circumferential array type inhaul cable vibration energy dissipation ring based on acoustic black hole beam |
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| Publication number | Publication date |
|---|---|
| CN107354860B (en) | 2019-06-11 |
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