CN106948264A - A kind of high-damping suspension cable based on STF - Google Patents
A kind of high-damping suspension cable based on STF Download PDFInfo
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- CN106948264A CN106948264A CN201710095307.8A CN201710095307A CN106948264A CN 106948264 A CN106948264 A CN 106948264A CN 201710095307 A CN201710095307 A CN 201710095307A CN 106948264 A CN106948264 A CN 106948264A
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- stf
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- wrapped
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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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2075—Fillers
- D07B2201/2082—Fillers characterised by the materials used
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/2089—Jackets or coverings comprising wrapped structures
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/2092—Jackets or coverings characterised by the materials used
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/20—Organic high polymers
- D07B2205/2039—Polyesters
- D07B2205/2042—High performance polyesters, e.g. Vectran
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2015—Construction industries
- D07B2501/203—Bridges
Abstract
The present invention relates to a kind of high-damping suspension cable for being based on STF (Shear thickening fluid, STF), belong to Inclined Cable Vibration control field.Be wrapped by sandwich layer, STF interlayers band, strand layer, STF band, internal layer protective case and outer layer protective sleeve is constituted；Multiple strands are set in sandwich layer; STF is full of between adjacent strand; sandwich layer is coated with STF interlayer bands; STF interlayer bands are close to be covered with strand layer; STF is full of between strand; outermost strand layer is wrapped band provided with STF, and the STF band outer layers that are wrapped set internal layer protective case, and internal layer protective case outer layer sets outer layer protective sleeve.When suspension cable vibrates, one is that relative motion is produced between strand, the frictional force between STF enhancing strands；Two be that STF is instantaneously solid phase by liquid phase in STF interlayer bands, occurs shear thickening behavior, so as to provide additional high damping force；Three be that STF is wrapped band with high damping characteristic.
Description
Technical field
The invention belongs to Inclined Cable Vibration control technology field, and in particular to a kind of high-damping based on STF
Suspension cable.
Background technology
Since being built up from the Stromsund bridges of Sweden's sixties in last century, cable-stayed bridge has excellent mechanical property due to it
It can be emerged in large numbers with graceful architectural image as a kind of new bridge structure in worldwide.And with mankind society
The need for developing, the span of cable-stayed bridge has surmounted km, such as Su-Tong Brideg (1088m), AngChuan Zhou bridge (1018m),
Russky Island bridges (1104m) and the Shanghai Changjiang River bridge (1092m) built etc..With cable-stayed bridge span not
Disconnected increase, suspension cable will also become longer, more soft therewith, and its vibration characteristics is more next to the harmfulness of km level large span stayed-cable bridge
It is more obvious, it is mainly manifested in：(1) cause rope anchored end to produce local fatigue crackle, cause drag-line to fail；(2) girder is aggravated
Dynamic response, influences the normal pass of vehicle；(3) people are caused to cable-stayed bridge resistance to overturning and the suspection of security.
The vibration control of suspension cable generally has passive control, active control and semi- active control, but most simple, most easily real
Existing, most economical mode is passive control.The silicon oil damper of early stage is exerted oneself constant and smaller (viscosity is about 10Pas), with
Continuing to develop for long-span cablestayed bridges and its suspension cable, silicon oil damper due to lack flexibility and to sudden environmental change compared with
The damper that the adaptability to changes of difference has been made up of intellectual material is replaced, such as current liquid (ERF), magnetic rheological liquid (MRF),
Marmem (SMA) and piezoelectric (PZT) etc..However, its vibration control of the damper being made up of these intellectual materials
Behavior processed is often depending on the input of outside energy.By taking MRF dampers as an example, the size of its damping force depends on extraneous magnetic field
Change, and the damping force that is provided of single MRF dampers and initial stiffness ratio it is relatively limited be difficult to meet large span suspension cable subtract
Shake the requirement of control, under Rapid Loads (such as high wind, earthquake) effect, MRF dampers even also have response time problem.And
Shear thickening fluid (STF) material is a kind of passive intellectual material, with nonlinearity mechanical property, when its shear rate is super
When crossing a certain threshold value, STF is thickened and then consumed energy according to its shear thickening behavior moment, and without external magnetic field or electric field.
Therefore, it is expected to provide new thinking for the vibration damping control of super long stayed cable based on the suspension cable that STF is designed and produced.
The patent of invention of Patent No. 201410427327.7 discloses a kind of high-damping based on carbon fiber and steel strand wires
Compound suspension cable, is filled with visco-elastic damping material between sandwich layer and composite bed, and composite bed is closely arranged by some composite fibres
Row are constituted, and are brought into close contact between adjacent composite bed, composite fibre is made up of a high tensile steel wire six roots of sensation carbon fiber wire, six roots of sensation carbon
Filament surrounds the periphery of high tensile steel wire, stranded to be integrated.But, existing compound suspension cable when in use, is present following
Defect：Between prior art center core layer and composite bed be filled with visco-elastic damping material, the elastic damping material by environment temperature,
Significantly, such as modulus of shearing is with the quick reduction of temperature reduction for the influence of frequency, plastic strain amplitude and pre compressed magnitude.
The content of the invention
Behavior is significantly vibrated for suspension cable in the prior art is extremely incident under environmental load effect, the present invention is provided
A kind of suspension cable of the high-damping based on STF, the suspension cable can increase its resistance according to environmental load characteristic instant
Buddhist nun, so as to suppress the significantly vibration of suspension cable, and can be after load disappearance, suspension cable restPoses, and whole process without
Outside energy is needed to input, the technical solution adopted by the present invention is：
A kind of high-damping suspension cable based on STF of the present invention, sandwich layer, STF are set gradually by internal layer to outer layer
Interlayer band, strand layer, STF are wrapped band, internal layer protective case and outer layer protective sleeve；Multiple strands are set in the sandwich layer, it is adjacent
STF particles are full of between strand, sandwich layer is coated with outside STF interlayer bands, STF interlayer bands as strand layer, STF interlayers band and strand
Set in layer interval setting, strand layer and STF is full of between multiple strands, adjacent strand, outermost layer strand layer is externally provided with STF and is wrapped
Band, STF to be wrapped and set internal layer protective case with outer layer, and internal layer protective case outer layer sets outer layer protective sleeve.
Further, filling STF inside the STF interlayers band, STF interlayers band is at least provided with one layer.
Further, when the STF interlayers band sets multilayer, STF is filled between sandwich layer and STF interlayer bands.
Further, including sandwich layer, STF are wrapped band, internal layer protective case and outer layer protective sleeve；The sandwich layer is by multiple strands
Constitute, STF is full of between adjacent strand, STF to be wrapped and set internal layer protective case with outer layer, and internal layer protective case outer layer sets outer layer
Protective case.
Further, the STF be wrapped band be based on h modified STF, it is adjacent when being wrapped to twine
The overlapping widths of band are not less than being wrapped 1/3rd of bandwidth.
Further, the interlayer tape thickness is 0.5mm-2.0mm.
The invention has the advantages that and advantage：
1. the present invention answers rate sensitivity, modulus of shearing big and instantaneously reversible STF is used as suspension cable oscillation damping and energy dissipating using cutting
High damping material；The frictional force between nano-particle reinforcement strand in relative motion, STF is produced between one side strand；Separately
On the one hand extruding is produced to internal STF, STF is instantaneously class solid phase by liquid phase, that is, occurring shear thickening behavior, there is provided additional
Damping force；The damping of suspension cable can be effectively increased, so as to suppress the significantly vibration of suspension cable.
2. the present invention has and had a wide range of application, utilization rate is high, for that under strong, typhoon load action, can be pressed from both sides by adjusting STF
The thickness of layer band so that when strong, typhoon load is smaller shear thickening behavior occurs for suspension cable, so as to consume vibrational energy；It is right
In the longer suspension cable of span, the characteristics of being relatively large in diameter using it sets multilayer STF interlayer bands, adjacent S TF folders outside sandwich layer
Layer interband to set be full of STF between strand layer, and the strand of strand layer again, increases its damping, so as to suppress significantly shaking for suspension cable
It is dynamic, the final security for improving bridge structure.
3. the present invention is when suspension cable vibrates, produced between one side strand between relative motion, STF enhancing strands
Frictional force；Two be to produce pinch shock power to STF interlayers band, and it by liquid phase is solid phase that STF is instantaneous in interlayer band, that is, is occurred
There is provided additional high damping force for shear thickening behavior；Three be that STF is wrapped band with high damping characteristic.Therefore the present invention can effectively increase
Plus the damping of suspension cable, suppress the significantly vibration of suspension cable.Based on above-mentioned three aspects coupling, suspension cable damping it is available compared with
Big raising, consumes vibrational energy, so as to reduce its vibration amplitude.
Brief description of the drawings
Fig. 1 is suspension cable cross section structure schematic diagram of the present invention.
Fig. 2 is sandwich layer cross section structure schematic diagram of the present invention.
Fig. 3 is minor diameter suspension cable cross section structure schematic diagram of the present invention.
Fig. 4 is that STF of the present invention is wrapped carrying material (based on the compound hs of STF).
1- sandwich layers, 11- strands, 2-STF interlayer bands, 3- STFs STF, 4- strand layer, 5-STF is wrapped band, 6-
Internal layer protective case, 7- outer layer protective sleeves.
Embodiment
The present invention possesses that shear strain rate is sensitive, modulus of shearing is big and instantaneous reversible excellent using new intellectual material STF
Point, when suspension cable bears high strain-rate load, STF can be solid phase by liquid phase, at the beginning of STF modulus of shearing is much larger than it
The modulus of shearing of beginning state, when suspension cable bearing load is cancelled, STF instantaneously can be changed into liquid phase by solid phase, i.e., this to become
Change is reversible；Using STF shear thickening performance, structural damping is improved, the effect of vibration damping is reached.It is attached with reference to specification
The present invention is further elaborated with embodiment for figure.
Embodiment 1：As shown in Figure 1 and Figure 2, cross-sectional view of the present invention can be seen that is set successively by internal layer to outer layer
Sandwich layer 1, two layers STF interlayers band 2 (settable multilayer), strand layer 4, STF is put to be wrapped band 5, internal layer protective case 6 and outer layer protective sleeve
7；Multiple strands 11 are set in sandwich layer, and strand 11 is made up of some galvanized strand wires close-packed arrays, between adjacent strand 11
Full of the particles of STF 3；Sandwich layer is coated with the STF interlayer bands that two layers of h seals STF, and it is thick
It can be 0.5mm-2mm that degree band is configured according to Inclined Cable Vibration control requirement, and STF interlayers band connects when being wrapped along suspension cable direction
Continuous dense arrangement, twines neat, no breakage；Set and filled between multiple strands, adjacent strand along STF interlayers band periphery in strand layer
STF, STF interlayer band and strand layer interval setting, outermost strand layer are close to set one layer of STF to be wrapped band, and the band that is wrapped is high-strength for STF
Polyester fiber is spent, the fiber need to be by shear thickening immersion bubble and vacuum drying treatment, and the band that is wrapped is outer to be close to set internal layer to protect
Set, internal layer protective case outer layer sets outer layer protective sleeve.When suspension cable vibrates, one is, relative motion is produced between strand,
Frictional force between STF particles enhancing strand；Two are, the STF in interlayer band be forced to due to extruding flowing, STF instantaneously by
Liquid phase is solid phase, that is, occurring shear thickening behavior, there is provided additional damping power；Three are, the high-strength polyester after STF is handled
Fiber is wrapped band with high damping characteristic.The coupling of above-mentioned three can be effectively increased the damping of suspension cable, so as to suppress oblique
The significantly vibration of drag-line.
Embodiment 2：This example as different from Example 1, such as Fig. 2, shown in Fig. 3：For the less bridge of span, it is necessary to set
A kind of smaller high-damping suspension cable based on STF of diameter is put, setting gradually sandwich layer, STF by internal layer to outer layer is wrapped belt, internal layer
Protective case and outer layer protective sleeve；Multiple strands are set in sandwich layer, and strand is made up of some galvanized strand wires close-packed arrays, phase
It is full of between adjacent strand between STF, strand and produces relative motion, the frictional force between STF particle enhancing strand；Outside sandwich layer
Cladding STF is wrapped band, and sandwich layer and STF, which are wrapped between band, fills STF, and the STF bands that are wrapped are that the modified bands that are wrapped of STF are high intensity
Polyester fiber, its number of plies requires to determine according to Inclined Cable Vibration control, and adjacent along the direction that is wrapped when being wrapped, and STF is wrapped band
Overlapping widths be not less than 1/3rd of its bandwidth, it is desirable to it is fine and close, neatly, no breakage.In order to protect STF to leak outside, STF is twined
Band peripheral hardware inner protective layer, inner protective layer band outer layer sets outer layer protective sleeve.
Embodiment 3：Unlike this example and embodiment 1,2：For under strong, typhoon effect, setting a kind of suppression suspension cable
The high-damping suspension cable based on STF significantly vibrated, internal layer to outer layer sets gradually sandwich layer, N layers of STF interlayers band 2, N layers of strand
Layer, STF are wrapped belt, internal layer protective case and outer layer protective sleeve；Multiple strands are set in sandwich layer, and strand is by some galvanized steels
Twisted wire close-packed arrays are constituted, and are full of between STF, strand between adjacent strand and are produced relative motion, STF particles enhancing strand it
Between frictional force；Sandwich layer outer cladding STF interlayer bands, STF interlayers band is configured according to suspension cable diameter and vibration control requirement
It can be 0.5mm-2mm, STF is filled between sandwich layer and STF interlayer bands；When STF interlayers band sets N layers, adjacent two layers STF interlayers
Multiple strands are set between band, to constitute and be full of STF between strand layer, adjacent strand；Outermost strand layer is close to set STF to be wrapped
Band, the band that is wrapped is the modified hs of STF, arranges fine and close along direction in terms of suspension cable when being wrapped, seamless, whole
Together.In order to protect STF to leak outside, STF is wrapped with peripheral hardware inner protective layer, and inner protective layer band outer layer sets outer layer protective sleeve.
Claims (6)
1. a kind of high-damping suspension cable based on STF, it is characterised in that by internal layer to outer layer set gradually sandwich layer,
STF interlayers band, strand layer, STF are wrapped band, internal layer protective case and outer layer protective sleeve；Multiple strands are set in the sandwich layer, it is adjacent
Strand between be full of STF particles, sandwich layer is coated with outside STF interlayer bands, STF interlayer bands as strand layer, STF interlayers band and rope
Set in stock layer interval setting, strand layer and STF is full of between multiple strands, adjacent strand, outermost layer strand layer is externally provided with STF and twined
Band, STF to be wrapped and set internal layer protective case with outer layer, and internal layer protective case outer layer sets outer layer protective sleeve.
2. a kind of high-damping suspension cable based on STF according to claim 1, it is characterised in that the STF
Filling STF inside interlayer band, STF interlayers band is at least provided with one layer.
3. a kind of high-damping suspension cable based on STF according to claim 2, it is characterised in that the STF
When interlayer band sets multilayer, STF is filled between sandwich layer and STF interlayer bands.
4. a kind of high-damping suspension cable based on STF, it is characterised in that protected including be wrapped band, internal layer of sandwich layer, STF
Sheath and outer layer protective sleeve；The sandwich layer is made up of multiple strands, is full of STF between adjacent strand, and sandwich layer and STF are wrapped band
Between fill STF, the STF band outer layers that are wrapped set internal layer protective case, and internal layer protective case outer layer sets outer layer protective sleeve.
5. a kind of high-damping suspension cable based on STF according to claim 1 or 4, it is characterised in that described
STF is wrapped band for based on h modified STF, the overlapping widths of the adjacent band that is wrapped are not less than and twined when being wrapped
/ 3rd of band width.
6. a kind of high-damping suspension cable based on STF according to claim 1, it is characterised in that the interlayer
Tape thickness is 0.5mm-2.0mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095307.8A CN106948264B (en) | 2017-02-21 | 2017-02-21 | A kind of high-damping suspension cable based on shear thickening liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710095307.8A CN106948264B (en) | 2017-02-21 | 2017-02-21 | A kind of high-damping suspension cable based on shear thickening liquid |
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| CN106948264A true CN106948264A (en) | 2017-07-14 |
| CN106948264B CN106948264B (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468686A (en) * | 2019-09-02 | 2019-11-19 | 广东迈诺工业技术有限公司 | A kind of bridge antivibration drag-line |
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| CN105088943A (en) * | 2014-05-13 | 2015-11-25 | 柳州欧维姆机械股份有限公司 | Steel wire stayed cable filled or coated with polyurea protection materials |
| CN205608258U (en) * | 2016-02-05 | 2016-09-28 | 贾成 | Optical cable with high strength |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111358A (en) * | 1993-06-29 | 1995-11-08 | 皮雷利·卡维有限公司 | Hydrogen-absorbing composition for optical fiber cables and optical fiber cables incorporating such composition |
| US20020044750A1 (en) * | 1999-05-28 | 2002-04-18 | Chung Shin Ma | Undersea telecommunications cable |
| CN201400819Y (en) * | 2009-03-04 | 2010-02-10 | 东南大学 | Basalt-fiber composite rib and basalt-fiber composite stay cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468686A (en) * | 2019-09-02 | 2019-11-19 | 广东迈诺工业技术有限公司 | A kind of bridge antivibration drag-line |
| CN110468686B (en) * | 2019-09-02 | 2021-08-31 | 广东迈诺工业技术有限公司 | Bridge anti vibration cable |
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| Publication number | Publication date |
|---|---|
| CN106948264B (en) | 2019-01-22 |
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