CN105735106B - Self-resetting frcition damper for bridge isolation system - Google Patents
Self-resetting frcition damper for bridge isolation system Download PDFInfo
- Publication number
- CN105735106B CN105735106B CN201610224695.0A CN201610224695A CN105735106B CN 105735106 B CN105735106 B CN 105735106B CN 201610224695 A CN201610224695 A CN 201610224695A CN 105735106 B CN105735106 B CN 105735106B
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- Prior art keywords
- damper
- piston
- self
- isolation system
- guide rod
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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
Abstract
The invention provides a kind of Self-resetting frcition damper for bridge isolation system, including damper cylinder, rubbing device, the first elastic device, the second elastic device, piston and guide rod；Guide rod runs through whole damper cylinder, and piston is along guide rod or so activity and is connected respectively by the first elastic device and the second elastic device with the left and right wall of damper cylinder；The upper lower wall of rubbing device and damper cylinder is flexibly connected, and piston is connected by bracing diagonal with rubbing device, and stopping means is provided between bracing diagonal and piston.It is an object of the invention to provide a kind of damper for having energy dissipation capacity and runback bit function concurrently, the device can make superstructure when deviateing equilbrium position there is frictional force to realize power consumption, and do not have frictional force during equilbrium position is returned to, reduce and reset resistance, and each component of damper is in elastic range in whole process, so as to effectively overcome a series of problems existing for prior art.
Description
Technical field
The present invention relates to beam bridge shake-proof technology field, and in particular to a kind of Self-resetting for bridge isolation system, which rubs, to be hindered
Buddhist nun's device.
Background technology
On bridge isolation systematic research, verified shock insulation can effectively reduce what bridge pier was subject to both at home and abroad at present
Horizontal inertial force, so as to reduce its section turn moment and shearing, avoid its bending or failure by shear.But current bridge isolation system
System generally there are following problem：
（1）Shock isolation system does not play a role in small shake, when in running into, big shake when can just enable shock isolation system, shock insulation system
System is usually just to start to play a role after the cutting of shearing pin or anti-knock block destroy, and needs to change the phase of shock isolation system after shake
Part is closed, this has resulted in the increase of rehabilitation expense after shake.
（2）The power consumption of bridge isolation system at present is typically consumed energy using frictional force, will typically be rubbed to increase its energy dissipation capacity
The larger of power design is wiped, but the frictional force still has when needing and resetting after earthquake terminates, and prevents the reset of superstructure.
（3）It is real that part earthquake isolating equipment enters after mecystasis the energy dissipation capacity having under course under cyclic loading using mild steel
Now consume energy, but the energy-dissipating device of this material does not have runback bit function.
The content of the invention
It is an object of the invention to in the prior art the defects of and one kind is provided and has energy dissipation capacity and Self-resetting work(concurrently
The damper of energy, the device can make superstructure when deviateing equilbrium position there is frictional force to realize power consumption, and flat returning to
Weighing apparatus does not have frictional force during position, reduces and resets resistance, and each component of damper is in whole process
In elastic range, so as to effectively overcome a series of problems existing for prior art.
The technical solution adopted in the present invention is as follows：
For the Self-resetting frcition damper of bridge isolation system, including damper cylinder, rubbing device, the first elasticity dress
Put, the second elastic device, piston and guide rod；Guide rod runs through whole damper cylinder, piston along guide rod or so activity and
It is connected respectively by the first elastic device and the second elastic device with the left and right wall of damper cylinder；Rubbing device and damper cylinder
Upper lower wall is flexibly connected, and piston is connected by bracing diagonal with rubbing device, and spacing dress is provided between bracing diagonal and piston
Put.
In order to facilitate installation, it is easy to use, the rubbing device is friction plate, and the stopping means is Limit screw.
Self-resetting frcition damper is used for ease of bridge isolation system, and the damper cylinder is mixed by pull bar and beam bridge
Solidifying earth mulch beam connection；The piston is connected by the concrete girder of pull bar and beam bridge.
In order to preferably realize the runback bit function of damper, first elastic device is compression spring, the compression
Spring sets around guide rod and is connected with the right wall of damper cylinder；Second elastic device is extension spring, it is described by
Draw spring to be set around guide rod and be connected with the left wall of damper cylinder；The guide rod is corresponding each at least provided with two
Guide rod, the left and right of piston are designed with extension spring and compression spring；The upper lower wall of the damper cylinder is arranged with multiple rub
Device is wiped, the bracing diagonal and stopping means of corresponding each rubbing device are required for isometric setting.
For the ease of increasing friction force during piston activity, the bracing diagonal can be certainly with the junction of rubbing device and piston
By rotating.
Bridge isolation system is applied to for the ease of the present invention, when the pull bar is connected with beam bridge main body, between the two also
Steel strand wires are set, and the pull bar is solely subjected to pulling force.
When displacement to the right occurs under external force for the piston of damper, the angle of bracing diagonal and piston becomes big,
Then promote friction plate close to damper casing wall, it is spacing when the contact between friction plate and casing wall reaches design pressure
Screw rod prevents the further increase of angle so that the contact between friction plate and casing wall reaches maximum, now friction plate
Stiction is produced between casing wall, when external force is more than the stiction, the frictional force between friction plate and casing wall is changed into
Force of sliding friction, when piston reaches right side maximum displacement, piston is no longer moved, and external force is all undertaken by casing wall.Now if
External force is removed, then piston has the trend being moved to the left under the collective effect of extension spring and compression spring, and now connection is oblique
Angle between bar and piston diminishes, and friction plate departs from casing wall, and frictional force is disappeared, then piston is moved to the left.Until piston reaches
It is moved to the left to left side displacement maximum, during this from equilbrium position and again returns to the tensile displacement curve of equilbrium position such as
Shown in Fig. 3, wherein：
OA sections：Now external force is less than maximum static friction force, displacement of the piston without relative casing wall, the displacement in this stage be by
For pull bar on the left of damper caused by applied elongation, line segment OA slope is equal to the tension section mould of pull bar on the left of damper
Measure EA.
AB sections：The pulling force of A points is equal to the maximum static friction force of damper, and when external force continues increase, frictional force is changed into sliding
Kinetic force of friction simultaneously remains steady state value, and the power that now piston is subject to has two parts, and a part is force of sliding friction, and a part is drawing
Pressing spring is to the power of piston, and the slope of line segment AB sections is equal to the coefficient of elasticity k of drawing-pressing spring1+k2, and k1+k2Much smaller than damping
The tension section modulus EA of pull bar on the left of device.The displacement in this stage is mainly displacement of the piston with respect to casing wall.
BC sections：When piston displacement, which reaches left side, does big displacement, external force is gradually removed, now position of the piston without relative casing wall
Move, the displacement in this stage for the draw-bar pull on the left of damper diminish caused by recover displacement.
CO sections：The power of C points is equal to power caused by spring when piston is moved to right side maximum displacement as left side maximum displacement, when
When external force continues to remove, piston is moved to the left under the restoring force effect of spring, until left side maximum displacement.
Visible by said process, although AB sections also have slope, the slope is much smaller than the slope of OA sections, can ignore not
Meter, then this device is similar to a preferable elastoplasticity device, and has runback bit function, and working stage device is each
Individual part is in elastic range, therefore Fig. 3 F-S curve has repeatability, will not have as elastic-plastic material residual
Remaining displacement.In a word, the damper is with " when piston moves right with frictional force, the zerofriction force when piston is moved to the left "
Function.
The present invention is had the following advantages that relative to prior art or beneficial effect：
1st, the present invention's is simple and practical, has energy dissipation capacity and runback bit function concurrently, can deviate superstructure flat
Frictional force is produced during weighing apparatus position and realizes power consumption, and does not produce frictional force during returning to equilbrium position, reduces reset resistance,
And each component of damper is in elastic range in whole process, it is not easy to is damaged, the maintenance cost of reduction, is improved
Service life.
2nd, piston two of the invention connects extension spring and compression spring respectively, improves the runback potential energy of structure in itself
Power.
3rd, Limit screw is provided between piston and bracing diagonal of the invention, is produced when ensure that piston excursion larger
Frictional force consumes energy, and does not produce frictional force during reset, simple in construction, powerful.
4th, multiple guide rods are provided with the middle part of damper cylinder of the invention, ensure that the inclined of piston movement occurred level direction
Move and reset, improve the anti-seismic performance of beam bridge.
5th, the present invention can be symmetrical set among actual use, and no matter that direction of left and right is produced partially by external force
It can easily be resetted after shifting, substantially increase the shockproof of beam bridge, damping performance, structure design is simple, and practicality is higher.
Brief description of the drawings
Fig. 1 is the damper structure schematic diagram of the present invention；
Fig. 2 is application schematic diagram of the present invention in bridge isolation system；
Tensile displacement curve map when Fig. 3 is present invention work；
Fig. 4 is the bridge isolation system simplification figure of Self-resetting frcition damper；
Fig. 5 is simplified each state F-S curve maps of bridge isolation system.
Embodiment
Below in conjunction with accompanying drawing, the Self-resetting frcition damper for bridge isolation system of the present invention is done further in detail
Describe in detail bright.
As shown in figure 1, the Self-resetting frcition damper for bridge isolation system of the present invention, including it is damper cylinder 1, more
Rubbing device 2, the first elastic device 3, the second elastic device 4, piston 7 and two guide rods 8 of group setting symmetrical above and below.Two
Guide rod 8 runs through whole damper cylinder 1, and piston 7 passes through the first elastic device 3 and the along the activity of guide rod 8 or so and respectively
Two elastic devices 4 are connected with the left and right wall of damper cylinder 1；The upper lower wall of rubbing device 2 and damper cylinder 1 is flexibly connected, piston 7
Be connected by bracing diagonal 5 with rubbing device 2, wherein, 2 preferred friction plate of rubbing device, and bracing diagonal 5 and piston 7 it
Between be provided with stopping means 6,6 preferred Limit screw of stopping means；Bracing diagonal 5 can be certainly with the junction of rubbing device 2 and piston 7
By rotating；First elastic device 3 uses compression spring, compression spring set around guide rod 8 and with the right wall of damper cylinder 1
Connection；Second elastic device 4 uses extension spring, and extension spring sets around guide rod 8 and connected with the left wall of damper cylinder 1
Connect.
When for beam bridge anti-shock system, damper cylinder 1 is connected the present invention by pull bar 9 with the concrete bent cap of beam bridge；
Piston 7 is connected by pull bar 9 with the concrete girder of beam bridge；When pull bar 9 is connected with beam bridge main body, steel is there is provision of between the two
Twisted wire, pull bar 9 are solely subjected to pulling force.
As shown in Fig. 2 the bridge isolation system of tool Self-resetting frcition damper is mainly by steel strand wires 27, Self-resetting friction resistance
Buddhist nun's device 25 and teflon sliding bearing 26 form, in addition to concrete girder 21, concrete bent cap 22, concrete pier
23, anchor block 24,.The system can ensure bridge pier and superstructure without relative displacement in small shake, the follow-up use to beam bridge
Do not have any impact, occur under middle shake or big shake effect can manual control relative displacement, passed so as to reduce substructure
To the seismic force of superstructure, effectively prevent that bridge pier from occurring shearing or the transverse direction of bending failure and superstructure falls beam.Work as earthquake
The relative displacement of top and the bottom structure can recover again in the presence of the system during stopping, and the reparation expense of beam bridge after shake is reduced with this
With.
To the bridge isolation system of the tool Self-resetting frcition damper shown in Fig. 2, if superstructure is reduced into one
Lumped mass, bent cap are replaced with a fixing device, then the system can be reduced to single-degree of freedom vibration structure as shown in Figure 4
System.
1st, poised state
State shown in Fig. 4 is the poised state of structure, and now the pulling force of both sides steel strand wires is equal to zero.And now damper
A pistons are located at the maximum displacement of left side, and damper B pistons are located at the maximum displacement of right side.
2nd, displacement of the lumped mass by equilbrium position generation to the left
Now the pulling force of steel strand wires II remains as zero, and the pulling force of steel strand wires III is increasingly greater than zero, then damper B friction plates with
There is stiction between casing wall, therefore when the pulling force of steel strand wires III is less than the stiction between damper B friction plates and casing wall
When, piston is motionless, and when the displacement continues increase, piston starts to slide, and stiction is changed into force of sliding friction, now steel strand wires
III pulling force keeps constant.
3rd, lumped mass to equilbrium position from being subjected to displacement at the maximum displacement of left side
Now the pulling force of steel strand wires III is gradually reduced, and has stiction between damper B friction plates and casing wall, works as concentration
When quality reaches equilbrium position, the pulling force of steel strand wires III is zero, now zerofriction force between damper B friction plates and casing wall, damping
Device B pistons synchronously move right in the presence of tension and compression spring with lumped mass reaches dominant bit on the right side of the damper
Move.And damper A is unchanged in this course.
4th, lumped mass by equilbrium position, move to the right by maximum displacement
Now the pulling force of steel strand wires III remains as zero, and the pulling force of steel strand wires II is increasingly greater than zero, then damper A friction plates with
There is stiction between casing wall, therefore when the pulling force of steel strand wires II is less than the stiction between damper A friction plates and casing wall
When, piston is motionless, and when the displacement continues increase, piston starts to slide, and stiction is changed into force of sliding friction, now steel strand wires
II pulling force keeps constant.
5th, lumped mass to equilbrium position from being subjected to displacement at the maximum displacement of right side
Now the pulling force of steel strand wires II is gradually reduced, and has stiction between damper A friction plates and casing wall, works as concentration
When quality reaches equilbrium position, the pulling force of steel strand wires II is zero, now zerofriction force between damper A friction plates and casing wall, damping
Device A pistons synchronously move right in the presence of tension and compression spring with lumped mass reaches dominant bit on the right side of the damper
Move.And damper B is unchanged in this course.
Above-mentioned 2nd, 3,4, the F-S curves of 5 steps it is as shown in Figure 5.
6th, lumped mass locates earthquake stopping at an arbitrary position
Now stop suddenly in the left side of equilbrium position or right side equivalent to lumped mass, it is assumed that be parked in an equilbrium position left side
Side, now damper A piston is located at its left side maximum position and steel strand wires II and tension, the power of compression spring are zero, resistance
Buddhist nun's device B pistons are located at the left side of its right side maximum displacement, and tension, compression spring have restoring force to the right, steel strand wires to piston
III pulling force is equal to damper B stiction.Then under the pulling force effect of steel strand wires III micro-displacement can occur for lumped mass to the right, make
The pulling force for obtaining steel strand wires III is gradually reduced, and when the pulling force is less than damper B drawing-pressing spring restoring forces, piston and lumped mass exist
Moved right under spring restoring force effect, until lumped mass reaches equilbrium position, i.e. lumped mass has runback bit function.
In a word, when beam bridge structure meets with small shake effect, pier top horizontal displacement is smaller, to the horizontal force of superstructure also compared with
It is small, the stiction of damper can be adjusted by adjusting in damper Limit screw so that the small lower superstructure of shake effect
With pier top without relative displacement, when running into middle shake or shaking greatly, pier top horizontal displacement is larger, now the device can make pier top with it is upper
Relative displacement occurs between portion's structure, and pier top has horizontal displacement, and superstructure is not subjected to displacement with pier top, on reducing
The horizontal acceleration of portion's structure, reduce the horizontal inertial force that pier top is subject to and be at elastic range, and in pier top and top
Structure, which occurs to realize by frictional force during relative displacement, to consume energy, so as to avoid or reduce the destruction of bridge pier.When earthquake stops
When only, the relative displacement of superstructure and pier top can be decreased to zero by the device again, reach runback bit function.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. the Self-resetting frcition damper for bridge isolation system, it is characterised in that including damper cylinder (1), rubbing device
(2), the first elastic device (3), the second elastic device (4), piston (7) and guide rod (8)；The guide rod (8) is through whole
Damper cylinder (1), the piston (7) is along the activity of guide rod (8) left and right and passes through the first elastic device (3) and the second bullet respectively
Property device (4) is connected with the left and right wall of damper cylinder (1)；The activity of the upper lower wall of the rubbing device (2) and damper cylinder (1) is even
Connect, piston (7) is connected by bracing diagonal (5) with rubbing device (2)；Limit is provided between the bracing diagonal (5) and piston (7)
Position device (6).
2. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 1, it is characterised in that the friction
Device (2) is friction plate.
3. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 2, it is characterised in that described spacing
Device (6) is Limit screw.
4. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 3, it is characterised in that the damping
Device cylinder (1) is connected by pull bar (9) with the concrete bent cap of beam bridge；The piston (7) passes through pull bar (9) and the concrete of beam bridge
Girder connects.
5. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 4, it is characterised in that described first
Elastic device (3) is compression spring, and the compression spring sets around guide rod (8) and connected with the right wall of damper cylinder (1)
Connect；Second elastic device (4) is extension spring, the extension spring set around guide rod (8) and with damper cylinder
(1) left wall connection.
6. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 5, it is characterised in that the guiding
Bar (8) is at least provided with two, and corresponding each guide rod (8), the left and right of piston (7) is designed with extension spring and compression spring.
7. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 6, it is characterised in that the damping
The upper lower wall of device cylinder (1) is arranged with multiple rubbing devices (2)；The bracing diagonal (5) of corresponding each rubbing device (2) and spacing
The all isometric setting of device (6).
8. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 7, it is characterised in that the connection
The junction of brace (5) and rubbing device (2) and piston (7) is free to rotate.
9. it is used for the Self-resetting frcition damper of bridge isolation system as claimed in claim 8, it is characterised in that the pull bar
(9) when being connected with beam bridge main body, steel strand wires are there is provision of between the two, and the pull bar (9) is solely subjected to pulling force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224695.0A CN105735106B (en) | 2016-04-12 | 2016-04-12 | Self-resetting frcition damper for bridge isolation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224695.0A CN105735106B (en) | 2016-04-12 | 2016-04-12 | Self-resetting frcition damper for bridge isolation system |
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| Publication Number | Publication Date |
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| CN105735106A CN105735106A (en) | 2016-07-06 |
| CN105735106B true CN105735106B (en) | 2018-04-03 |
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| CN201610224695.0A Expired - Fee Related CN105735106B (en) | 2016-04-12 | 2016-04-12 | Self-resetting frcition damper for bridge isolation system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487703B (en) * | 2019-01-14 | 2023-07-04 | 兰州理工大学 | Function-separated self-resetting shock-absorbing bridge and installation method |
| CN113392450B (en) * | 2021-06-07 | 2023-04-07 | 国能朔黄铁路发展有限责任公司 | Method, device and system for evaluating health state of railway pier |
| CN113958005A (en) * | 2021-11-01 | 2022-01-21 | 天津大学 | Piezoelectric variable friction damping system suitable for large-span space structure |
| CN114481821B (en) * | 2021-12-31 | 2024-03-19 | 安徽尚德科技有限公司 | Multidirectional viscous damping support |
| CN114351570A (en) * | 2022-01-27 | 2022-04-15 | 北京交通大学 | Transverse equivalent TMD damping control system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340085A (en) * | 2001-05-11 | 2002-11-27 | Toyo Tire & Rubber Co Ltd | Vibration damper device |
| KR100927737B1 (en) * | 2007-11-29 | 2009-11-18 | 한국건설기술연구원 | Seismic strengthening composite system and seismic strengthening structure of building structure |
| CN203594125U (en) * | 2013-09-27 | 2014-05-14 | 西安建筑科技大学 | Self-resetting piezoelectric semi-active friction damper |
| CN203639798U (en) * | 2013-12-19 | 2014-06-11 | 清华大学 | Function-recoverable bridge |
| CN204372021U (en) * | 2014-12-03 | 2015-06-03 | 华侨大学 | Self-resetting friction-changing damper |
| CN105064531A (en) * | 2015-09-01 | 2015-11-18 | 北京交通大学 | Self-reset magnetic fluid damper |
| CN205501801U (en) * | 2016-04-12 | 2016-08-24 | 兰州理工大学 | A friction damper that restores to throne certainly for beam bridge shock isolation system |
-
2016
- 2016-04-12 CN CN201610224695.0A patent/CN105735106B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340085A (en) * | 2001-05-11 | 2002-11-27 | Toyo Tire & Rubber Co Ltd | Vibration damper device |
| KR100927737B1 (en) * | 2007-11-29 | 2009-11-18 | 한국건설기술연구원 | Seismic strengthening composite system and seismic strengthening structure of building structure |
| CN203594125U (en) * | 2013-09-27 | 2014-05-14 | 西安建筑科技大学 | Self-resetting piezoelectric semi-active friction damper |
| CN203639798U (en) * | 2013-12-19 | 2014-06-11 | 清华大学 | Function-recoverable bridge |
| CN204372021U (en) * | 2014-12-03 | 2015-06-03 | 华侨大学 | Self-resetting friction-changing damper |
| CN105064531A (en) * | 2015-09-01 | 2015-11-18 | 北京交通大学 | Self-reset magnetic fluid damper |
| CN205501801U (en) * | 2016-04-12 | 2016-08-24 | 兰州理工大学 | A friction damper that restores to throne certainly for beam bridge shock isolation system |
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