CN208151840U - A kind of self-balancing reset bridge aseismic devices - Google Patents
A kind of self-balancing reset bridge aseismic devices Download PDFInfo
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- CN208151840U CN208151840U CN201721873314.8U CN201721873314U CN208151840U CN 208151840 U CN208151840 U CN 208151840U CN 201721873314 U CN201721873314 U CN 201721873314U CN 208151840 U CN208151840 U CN 208151840U
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- strong spring
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000004873 anchoring Methods 0.000 claims abstract description 9
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000703 anti-shock Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of self-balancings to reset bridge aseismic devices, including anchor block, high-strength rope, fixed pulley group, high strong spring, angle pulley, connecting rod and steel hoop；The anchor block is anchored on the lateral surface of girder two sides；The steel hoop is fitted and connected with pier shaft, is distributed on pier shaft；The fixed pulley group is made of the pulley of several different-diameters, and intermediate pulley size is maximum, is gradually reduced to both ends size；Each pulley passes through connecting rod and is anchored on steel hoop, and the lateral surface of the fixed pulley group after installation is arc-shaped；The anchoring lower ends of the high strong spring cushion cap or on the basis of；The angle pulley is arranged in the lower part of pier shaft, makes high-strength rope is vertical with high strong spring to connect；The upper end of the high-strength rope is anchored on the anchor block on the outside of girder, and successively pile warp is located at the fixed pulley group of the other side and positioned at ipsilateral angle pulley, and anchoring lower ends are on ipsilateral high strong spring.The device is also easy to produce excessive moment of flexure problem to pier shaft and carries out effective solution.
Description
Technical field
The utility model relates to technical field of bridge engineering, specially a kind of self-balancing resets bridge aseismic devices.
Background technique
China is the multiple country of an earthquake, and bridge recurring structure after earthquake disaster destroys, or even falls beam, collapses
Event is commonplace.Safety direct relation of the science of bridge building as the lifeline engineering for leading to disaster area, when earthquake occurs
Can rescue and relief work smoothly be implemented after to shake, can have an immense impact on to people life property loss.
Under geological process, bridge superstructure can generate huge horizontal inertial force (hereinafter referred to as horizontal force), this
Horizontal force will be transmitted to again pier top by support, cause that biggish Relative Displacement occurs between one side pier beam, support is caused to damage,
Even beam body is toppled；The horizontal force of another aspect pier top can make the especially high pier of pier shaft by great Moment, when serious
The consequence for even causing pier shaft to be broken.
Currently, it is most of be related to bridge earthquake resistance, subtract shock insulation in terms of document Bridge seismic isolation device be respectively positioned on pier beam it
Between small space, thinking is to the decrease of geological process lower girder horizontal force or to increase buffering energy dissipator, such as right
The improvement of Antivibration block, the improvement etc. to support.And cause the especially high pier huge bending moment of pier shaft about by pier top horizontal force
And problem easy to damage, few relevant processing schemes.
1, application number 201610481565.5 discloses a kind of bridge shock-proof check block construction for buffering energy dissipating, it is intended to which earthquake is made
Under, dissipated seismic energy and realization beam body Self-resetting by moveable hinge and several springs.Geological process lower girder is generated
Horizontal inertial force weakened, reduce superstructure to the active force of bridge pier, but nonetheless, at pier top institute by concentrated force according to
It is so very big, huge bending moment is generated to pier shaft lower part, causes to make pier shaft unbalance stress, or even bending failure occur.And this device exists
To the limit of bridge under middle severe earthquake action, it is out of strength to buffer the performance of the antidetonations such as energy dissipating.
2, application number 201410102422.X discloses a kind of energy-consumption self-resetting bridge pier column structure, by pier coping portion with
It is connected between basis using drag-line and passes through the components such as damping energy dissipation device, rubber layer and realize that bridge pier column structure consumes under geological process
It can Self-resetting.But it is analyzed from loading angle, drag-line and vertical direction angle are less than normal, so that the water being displaced to seismic deformation at pier top
Flat effect of contraction is relatively limited, and institute is very big by concentrated force at pier top, generates huge bending moment to pier shaft lower part, pier shaft stress is not
, still easily there is bending failure.
Utility model content
In view of the deficiencies of the prior art, the technical issues of the utility model intends to solve is to provide a kind of self-balancing reset bridge
Beam damping device.
The technical solution that the utility model solves the technical problem is to provide a kind of self-balancing reset Bridge Seismic dress
It sets, it is characterised in that the device includes anchor block, high-strength rope, fixed pulley group, high strong spring, angle pulley, connecting rod and steel hoop；
The anchor block is anchored on the lateral surface of girder two sides；The steel hoop is fitted and connected with pier shaft, is distributed on pier shaft；It is described fixed
Pulley blocks are made of the pulley of several different-diameters, and intermediate pulley size is maximum, are gradually reduced to both ends size；Each pulley
It is anchored on steel hoop by connecting rod, the lateral surface of the fixed pulley group after installation is arc-shaped；The lower end anchor of the high strong spring
Gu cushion cap or on the basis of；The angle pulley is arranged in the lower part of pier shaft, makes high-strength rope is vertical with high strong spring to connect；Institute
It states on the anchor block that the upper end of high-strength rope is anchored on the outside of girder, successively pile warp is located at the fixed pulley group of the other side and is located at ipsilateral
Angle pulley, anchoring lower ends are on ipsilateral high strong spring.
Compared with prior art, the utility model beneficial effect is：
1, the device breaks the thinking of traditional displacement-limited with dissipation antishock device, is not limited solely to the girder falling of pier top girder about
It is the considerations of beam and displacement-limited with dissipation, creative that pier shaft caused by being acted under geological process due to the concentrated force of pier top was also easy to produce
Big moment of flexure problem carries out effective solution.
2, under geological process, which can be by the horizontal force to bridge pier that high-strength rope generates girder by pier top
The action mode of concentrated force is converted into the form of the even distributed force along pier shaft, and the active position of power and the change in direction pass through fixed pulley
Group realizes that resultant force position is converted into bridge pier center by pier top, and the arm of force reduces half, and pier shaft root moments significantly reduce, pier shaft
It is more uniformly stressed rationally, prevents pier shaft bending failure, and the excessive direction across bridge displacement of beam body is improved bridge by operative constraint
The whole anti-seismic performance of structure.
3, constructively Path of Force Transfer is clear for the utility model device, (right side) to the left that geological process lower girder generates it is huge
Big horizontal inertial force is transmitted downwards by high-strength rope, the fixed pulley group of right (left side) the side arrangement of pile warp pier shaft, and wraparound pier shaft is left
Power is transferred to cushion cap by high strong spring after the angle pulley of (right side) side.The huge inertia force for generating girder largely transmits
To cushion cap, substantially reduces and power at the top of pier shaft is passed down to by support, realize the effective protection to pier shaft.
4, when geological process lower girder generates displacement and generates displacement so as to cause high-strength rope stress, high one side of strong spring
Face is displaced to constrain girder displacement by restraint and high-strength rope, while having buffering energy dissipating effect, is on the other hand displaced to girder
Caused high-strength rope displacement is resetted.Realization mutually converts the elastic potential energy of the displacement of girder and spring, reaches big change
Energy-dissipating and shock-absorbing is provided under shape, provides the effect of elastic reset under small deformation.
5, the device Path of Force Transfer is clear, has energy consumption, limit and runback bit function, can effectively constrain beam body
Excessive direction across bridge displacement, reduces the generation that direction across bridge falls beam accident, improves the whole anti-seismic performance of bridge structure, and have shake
Self-reparing capability afterwards.
6, the present apparatus is the device independently of bridge pier, and structure is simple, simple installation, convenient and quick construction, can be according to bridge pier
Length rationally customizes batch production, has biggish engineering application value.It is applicable to newly-built or active service bridge seismic hardening,
Not by landform, the factors limitations such as navigation requires.
7, steel hoop be subsection setup, be easily installed, convenient for service stage in later period for individual corrupted pulleys disassembly and
Replacement.
Detailed description of the invention
Fig. 1 is the overall structure schematic front view that the utility model self-balancing resets a kind of embodiment of bridge aseismic devices.
Fig. 2 is that the part of anchor block on the outside of a kind of the utility model self-balancing reset girder of embodiment of bridge aseismic devices is put
Big schematic diagram.
Fig. 3 is that the partial enlargement for the high strong spring that the utility model self-balancing resets a kind of embodiment of bridge aseismic devices shows
It is intended to.(in figure：1, anchor block；2, high-strength rope；3, fixed pulley group；4, high strong spring；5, angle pulley；6, girder；7, pier shaft；
8, cushion cap；9, connecting rod；10, steel hoop)
Specific embodiment
Specific embodiment of the utility model is given below.Specific embodiment is only used for being further described originally practical new
Type does not limit the protection scope of the claim of this application.
The utility model provides a kind of self-balancing reset bridge aseismic devices (referring to Fig. 1-3, abbreviation device), feature
It is that the device includes anchor block 1, high-strength rope 2, fixed pulley group 3, high strong spring 4, angle pulley 5, connecting rod 9 and steel hoop 10；
The anchor block 1 is anchored on the lateral surface of 6 two sides of girder；The steel hoop 10 is bonded with pier shaft 7, is encircled and is distributed in pier shaft 7
On；The fixed pulley group 3 is made of the pulley of several different-diameters, and intermediate pulley size is maximum, is gradually subtracted to both ends size
It is small；The connecting rod 9 that each pulley passes through different length is anchored on steel hoop 10 and is distributed on pier shaft 7, determines cunning after installation
The lateral surface of wheel group 3 is arc-shaped, it is therefore an objective to make each pulley stress equalization, transmit uniformly distributed active force to pier shaft 7；The high-strength bullet
The lower end of spring 4 by anchor bolt be anchored at cushion cap 8 or on the basis of；The angle pulley 5 is arranged in the lower part of pier shaft 7, by high-strength rope
The action direction of 2 power of rope is changed into vertical by oblique, connect it vertical with high strong spring 4；The upper end anchor of the high-strength rope 2
Gu pile warp is located at the fixed pulley group 3 of the other side, returns to positioned at ipsilateral angle pulley 5, lower end on the anchor block 1 in 6 outside of girder
It is anchored on ipsilateral high strong spring 4.
The connection type of high-strength rope 2 in embodiment is：The upper end of high-strength rope 2 is anchored at the anchor block of girder left-external side
On 1, successively pile warp is located at the fixed pulley group 3 on right side and the angle pulley 5 positioned at left side, and anchoring lower ends are in the high strong spring in left side
On 4；The upper end of high-strength rope 2 is anchored on the right lateral anchor block 1 of girder, and successively pile warp is located at fixed pulley group 3 and the position in left side
Angle pulley 5 in right side, anchoring lower ends are on the high strong spring 4 on right side.
The high-strength rope 2 is (such as steel strand wires or the height of the rope made of high-intensitive resistance to tired metal or nonmetallic materials
Strong wirerope), it is main Force transmission parts, bears tensile stress, prestressed is carried out to steel strand wires by reasonably calculating analysis
It draws, girder direction across bridge can be constrained and be displaced and have the function of that elastic self-balancing resets.
The fixed pulley group 3 uses high-strength material.
The high strong spring 4 is high-strength elastic metal material, high strength elastic alloy material or high-damping Energy dissipating material system
Part, spring can be made into groups of springs, dispersion be fixed on bridge bearing platform or on the basis of, realize the function of energy consumption and Self-resetting.
The connecting rod 9 is that steel product, alloy material product or metal with nonmetallic high damping material combine product；
The steel hoop 10 is the annular construction member made of steel；
The components such as described device and girder, bridge pier are completely independent, and can individually be produced in batches, are installed at the bridge stage,
Debugging.
The utility model self-balancing resets the working principle of bridge aseismic devices and workflow is：Under geological process,
Bridge superstructure can generate huge horizontal inertial force, and larger displacement occurs, and high-strength rope 2 is by being mounted on girder at this time
The anchor block 1 in 6 outsides carrys out the shifting of restraint beam position, and most power for concentrating on pier top originally are passed downwards by fixed pulley group 3
It passs and stepless action is on pier shaft 7, realize that pier bottom acting force arm halves, to significantly reduce bridge pier moment of flexure, greatly improve pier shaft
Stress.High-strength 2 lower end of rope is anchored on cushion cap 8 by high strong spring 4, and high strong spring 4 is deformed by natural resiliency
To while buffering energy dissipating antihunt action, the effect of self-balancing resets also is generated to bridge.
The utility model self-balancing described above that only explains through diagrams resets some principles of bridge aseismic devices, not
Be the utility model is confined to shown in and the specific structure and the scope of application in, therefore all phases that may be utilized
It should modify and equivalent, belong to the applied the scope of the patents of the utility model.
The utility model does not address place and is suitable for the prior art.
Claims (6)
1. a kind of self-balancing resets bridge aseismic devices, it is characterised in that the device include anchor block, high-strength rope, fixed pulley group,
High strong spring, angle pulley, connecting rod and steel hoop；The anchor block is anchored on the lateral surface of girder two sides；The steel hoop with
Pier shaft is fitted and connected, and is distributed on pier shaft；The fixed pulley group is made of the pulley of several different-diameters, intermediate pulley size
Maximum is gradually reduced to both ends size；Each pulley passes through connecting rod and is anchored on steel hoop, outside the fixed pulley group after installation
Side is arc-shaped；The anchoring lower ends of the high strong spring cushion cap or on the basis of；The angle pulley is arranged in the lower part of pier shaft,
Make high-strength rope is vertical with high strong spring to connect；The upper end of the high-strength rope is anchored on the anchor block on the outside of girder, successively around
It is located at the fixed pulley group of the other side and positioned at ipsilateral angle pulley, anchoring lower ends is on ipsilateral high strong spring.
2. self-balancing according to claim 1 resets bridge aseismic devices, it is characterised in that the upper end of high-strength rope anchors
On the anchor block of girder left-external side, successively pile warp is located at the fixed pulley group on right side and the angle pulley positioned at left side, anchoring lower ends
In on the high strong spring in left side；The upper end of high-strength rope is anchored on the right lateral anchor block of girder, and successively pile warp is located at left side
Fixed pulley group and angle pulley positioned at right side, anchoring lower ends are on the high strong spring on right side.
3. self-balancing according to claim 1 resets bridge aseismic devices, it is characterised in that the high-strength rope is steel strand
Line or high-strength steel cord.
4. self-balancing according to claim 1 resets bridge aseismic devices, it is characterised in that the steel hoop is by steel
Manufactured annular construction member.
5. self-balancing according to claim 1 resets bridge aseismic devices, it is characterised in that the high strong spring is high-strength
Elastic metallic material.
6. self-balancing according to claim 1 resets bridge aseismic devices, it is characterised in that the connecting rod be steel product,
Alloy material product or metal combine product with nonmetallic high damping material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721873314.8U CN208151840U (en) | 2017-12-28 | 2017-12-28 | A kind of self-balancing reset bridge aseismic devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721873314.8U CN208151840U (en) | 2017-12-28 | 2017-12-28 | A kind of self-balancing reset bridge aseismic devices |
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| Publication Number | Publication Date |
|---|---|
| CN208151840U true CN208151840U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721873314.8U Expired - Fee Related CN208151840U (en) | 2017-12-28 | 2017-12-28 | A kind of self-balancing reset bridge aseismic devices |
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| Country | Link |
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| CN (1) | CN208151840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974926A (en) * | 2017-12-28 | 2018-05-01 | 河北工业大学 | A kind of self-balancing resets bridge aseismic devices |
| CN114657860A (en) * | 2022-04-17 | 2022-06-24 | 石家庄铁道大学 | Damage stopping device for large-cantilever single-column pier bridge after impact |
-
2017
- 2017-12-28 CN CN201721873314.8U patent/CN208151840U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974926A (en) * | 2017-12-28 | 2018-05-01 | 河北工业大学 | A kind of self-balancing resets bridge aseismic devices |
| CN107974926B (en) * | 2017-12-28 | 2024-04-02 | 河北工业大学 | Self-balancing bridge damping device that resets |
| CN114657860A (en) * | 2022-04-17 | 2022-06-24 | 石家庄铁道大学 | Damage stopping device for large-cantilever single-column pier bridge after impact |
| CN114657860B (en) * | 2022-04-17 | 2024-02-02 | 石家庄铁道大学 | Damage stopping device for large-cantilever single-column pier bridge after being impacted |
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| 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: 20181127 |