CN115058958A - Method capable of transferring earthquake risk of CRTS II-shaped bridge-rail system - Google Patents
Method capable of transferring earthquake risk of CRTS II-shaped bridge-rail system Download PDFInfo
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- CN115058958A CN115058958A CN202210663886.2A CN202210663886A CN115058958A CN 115058958 A CN115058958 A CN 115058958A CN 202210663886 A CN202210663886 A CN 202210663886A CN 115058958 A CN115058958 A CN 115058958A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000009471 action Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 28
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims 2
- 230000008439 repair process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 206010003591 Ataxia Diseases 0.000 description 1
- 206010010947 Coordination abnormal Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 208000016290 incoordination Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
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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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a method capable of transferring earthquake risks of a CRTS II-shaped bridge rail system. The consistency between beams of the CRTS II type bridge rail system under the action of earthquake is enhanced, the constraint effect of the rails is improved, and the counter force at the roadbed is increased. When small earthquakes act, the earthquake energy can be consumed through the viscous dampers, and when larger earthquakes act, the earthquake energy is firstly consumed through the viscous dampers and then transferred to the roadbed through the track structure. The earthquake-proof and earthquake-proof device can prevent small earthquake, repair large earthquake and quickly recover traffic and a railway network after the earthquake, reduce the time for recovering the traffic after the earthquake, provide guarantee for the transportation of goods and materials and personnel after the earthquake, provide traffic support for recovering after the earthquake in regions, and build a valuable channel for rescuing the properties and lives of people.
Description
Technical Field
The invention belongs to the field of high-speed railway tracks and bridges, and particularly relates to a method capable of transferring earthquake risks of a CRTS II-shaped bridge track system.
Background
In a high-speed railway network, the CRTS II bridge rail system has the advantages of high stability, high smoothness, small maintenance amount and the like, and is widely applied to high-speed railways. For the reasons of straight line, even settlement and the like, the CRTS II type ballastless bridge track system mostly adopts the construction principle of replacing roads with bridges.
In a multi-span CRTS II type bridge rail system, due to the constraint action of the rails, under the action of an earthquake, different beams in the CRTS II type bridge rail system generate relatively large-difference displacement, so that uncoordinated deformation among spans is caused. The influence of different span difference deformation can cause the steel rail to be unsmooth, increases the running danger of the high-speed train, even can cause the influence of shaking the train, derailing and the like, and threatens the life and property safety of people on the train. Meanwhile, most of CRTS II type bridge rail system components are in standardized design, so that inconsistent deformation among beams can cause inconsistent damage to the components and even beam collision.
At present, researches on vibration reduction and isolation devices of a CRTS II type bridge rail system are mostly found in beam-support bases, but researches on devices among beams of the CRTS II type bridge rail system are less, and after earthquake, due to the damage of the rails, the workload of later maintenance is increased, the economic burden is increased, and the difficulty is increased for the recovery of a railway network and traffic after the earthquake.
Disclosure of Invention
The invention aims to provide a method for transferring the earthquake risk of a CRTS II-shaped bridge track system to roadbeds at two ends of a bridge, so that the safety of the bridge is ensured when a large earthquake occurs, the repair workload after the earthquake is reduced, and the repair speed is increased.
The method capable of transferring the earthquake risk of the CRTS II-shaped bridge rail system is characterized in that energy dissipation devices are arranged at the beam joints of the prefabricated main beams at the two longitudinal sides of a high-speed railway bridge, each energy dissipation device comprises a viscous damper and an installation support hinged to the two ends of the viscous damper, the installation supports are respectively connected and fixed with the end parts of the adjacent main beams through fasteners, when the high-speed railway bridge is subjected to small earthquake action, the earthquake energy can be consumed through each viscous damper, when the high-speed railway bridge is subjected to large earthquake action, the earthquake energy is firstly consumed through each viscous damper, and then the earthquake energy is transferred to a roadbed through a rail structure.
In one embodiment of the above method, the viscous damper includes an outer cylinder, an elastic buffer component, a check valve, and a piston rod, wherein one end of the outer cylinder fixes the sealing plate, the other end of the outer cylinder sets a sealing cover plate, the outer end of the elastic buffer component is fixed to the inner wall of the sealing plate, the check valve is disposed at the outer section of the inner cavity of the outer cylinder, the outer wall of the valve body is fixed to the inner wall of the outer cylinder, and the inner end of the rod body of the piston rod sequentially passes through the sealing cover plate and the check valve and then is connected to the sliding plate.
In one embodiment of the above method, the elastic buffer assembly includes buffer springs and a support plate, the inner side of the support plate is fixed with a plurality of buffer springs, the outer ends of the plurality of buffer springs are fixed with the sealing plate, the outer center position of the support plate is fixed with one buffer spring, and the periphery of the support plate is nested with a rubber sealing ring.
In one embodiment of the above method, the sliding plate has a rubber sealing ring nested around its periphery.
In one embodiment of the above method, the valve body of the check valve is provided with an axial center hole for being mounted on the piston rod, the axial center hole is nested with a rubber seal ring, and the valve body is provided with one or more oil inlet holes.
In one embodiment of the above method, the area between the one-way valve and the cover plate in the inner cavity of the outer cylinder serves as an oil storage bin, the area between the one-way valve and the support plate serves as a damping bin, and viscous oil is supplemented to the damping bin through the one-way valve.
In one embodiment of the above method, the sealing cover plate is made of the same metal material as the outer cylinder, a central hole for installing the piston rod is formed in the center of the sealing cover plate, and the rubber sealing ring is nested in the central hole.
In one embodiment of the above method, the mounting support includes a bottom plate, two side plates, and reinforcing rib plates, wherein the two side plates are fixed on the outer surface of the bottom plate in parallel, and the reinforcing rib plates are respectively disposed between the side plates and the bottom plate.
In one embodiment of the above method, the bottom plate and the main beam are fixed by expansion bolts.
In an embodiment of the above method, the outer end of the piston rod is provided with an ear plate along the outer edge of the axial center surface, the outer surface center of the sealing plate is provided with an ear plate, and the two ear plates are respectively inserted between the two side plates of the mounting support and hinged through a pin shaft.
According to the invention, energy dissipation devices are arranged at beam joints of main beams at two longitudinal sides of a CRTS II-shaped bridge rail system, two ends of each energy dissipation device are respectively regulated by an installation support and an adjacent main beam, and a piston rod of a viscous damper can stretch and dissipate energy when being subjected to an earthquake, so that collision between the adjacent main beams is effectively prevented, the problems of increased main beam displacement, failure of the installation supports and the like are solved, and main structures such as piers and the like are protected. The adjacent girders on the same side are connected into a whole through the energy consumption devices, when the girders are subjected to small earthquake energy, the energy consumption devices consume energy simultaneously and cannot damage the bridge structure, so that a track system of the bridge support is protected, when the girders are subjected to larger earthquake energy, all the energy consumption devices consume the earthquake energy, and when the energy consumption devices are damaged and failed, the girders connected into the whole are deformed coordinately, so that the earthquake energy can be transferred to a roadbed through the track structure, and the roadbed replaces the track structure to bear damage risks. Compared with a track system, the damage of the roadbed is easier to repair after the earthquake, the energy consumption device can directly disassemble the pin shaft between the viscous damper and the mounting support for replacement, and the operation is quick. In short, after the energy consumption devices are arranged at the beam seams of the main beams at the two longitudinal sides of the railway bridge, the consistency between the beams of the CRTS II type bridge rail system under the action of an earthquake is enhanced, so that the constraint effect of the track is improved, the counter force at the roadbed is increased, and finally the risk of the track structure is transferred to the roadbed to reduce the damage of the earthquake to the CRTS II type bridge rail system. The earthquake-proof railway network can prevent small earthquake and repair large earthquake, can quickly recover traffic and the railway network after the earthquake, reduces the time for recovering the traffic after the earthquake, provides guarantee for the transportation of goods and materials and personnel after the earthquake, provides traffic support for the recovery after the earthquake in the area, and builds a valuable channel for rescuing the property and the life of people.
Drawings
Fig. 1 is a schematic view of a usage state of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an axial structure of the energy consuming device of fig. 1.
Fig. 3 is an axial cross-sectional view of the viscous damper of fig. 2 (showing the mounting bracket and the lug plate to which the piston rod and the closing plate are attached).
Fig. 4 is a diagram illustrating a state of the art under a large earthquake.
Detailed Description
As shown in fig. 1, in the method for transferring an earthquake risk of a CRTS ii-shaped bridge rail system disclosed in this embodiment, energy dissipation devices 2 are disposed at beam joints of main beams 1 prefabricated on two longitudinal sides of a high-speed railway bridge, and two ends of each energy dissipation device 2 are connected and fixed to end portions of adjacent main beams 1 through fasteners.
The energy dissipation device 2 comprises a viscous damper and mounting supports hinged to two ends of the viscous damper, and the mounting supports are fixedly connected with the end portions of the adjacent main beams 1 through fasteners respectively.
As shown in fig. 2, the energy consuming device 2 comprises a viscous damper 21 and a mounting support 22 hinged at both ends thereof.
As shown in fig. 3, the viscous damper 21 includes an outer cylinder 211, a check valve 212, a piston rod 213, a slide plate 214, a support plate 215, and a damper spring 216.
A sealing plate 2111 is welded at the right end of the outer cylinder 211, a cover plate 2112 is welded at the left end, an ear plate EB for connecting the mounting support 22 is arranged at the central position of the outer surface of the sealing plate, a central hole is formed in the cover plate for mounting the piston rod, and a rubber sealing ring (not shown in the figure) is nested in the central hole. The closing plate and the cover plate are both manufactured and are not fixed with the outer barrel.
The inner cavity of the outer cylinder 211 is first provided with a fixed one-way valve 212 at a designated position, the valve body of the one-way valve is made of the same metal material as the outer cylinder, the center of the valve body is provided with an axial center hole for mounting a piston rod, a rubber seal ring (not shown in the figure) is nested in the axial center hole, and the valve body is provided with a plurality of one-way oil inlets.
The outer end of the piston rod 213 is provided with an ear plate EB extending along the axial center thereof for connecting the mounting support 22, after the one-way valve 212 is fixed, the inner end of the piston rod 213 sequentially penetrates through the cover plate 2112 and the one-way valve 212 and then extends out of the other end of the outer cylinder 211, the sliding plate 214 is fixed with the inner end of the piston rod 213, the diameter of the sliding plate is smaller than the inner diameter of the outer cylinder, and a rubber sealing ring (not shown in the figure) is nested on the periphery of the sliding plate.
After the sliding plate 214 is fixed to the piston rod 213, the piston rod is pulled to move the sliding plate into the outer cylinder 211, and the rubber packing at the periphery of the sliding plate is pressed by the inner wall of the outer cylinder.
The diameter of the support plate 215 is smaller than the inner diameter of the outer cylinder 211, a plurality of buffer springs 216 are vertically fixed to the right side of the support plate, and one buffer spring 216 is vertically fixed to the center position of the left side of the support plate. The periphery of the support plate is nested with a rubber seal ring (not shown).
The support plate 215 and the buffer spring 216 constitute an elastic buffer member.
When the elastic buffer component is installed in the inner cavity of the outer cylinder 211, the buffer spring 216 on the right side of the support plate 215 and the inner wall of the seal plate 2111 are welded and fixed to form an integral piece, then the elastic buffer component is inserted into the outer cylinder 211, and the seal plate and the outer cylinder are welded and fixed.
The support plate 215 provides stable support by a buffer spring 216 on its right side.
After the elastic buffer component is installed, the outer cylinder 211 is erected with the cover plate end facing upwards, viscous oil (preferably compressible silicone oil) is injected into the outer cylinder, the viscous oil enters the damping bin area between the one-way valve 212 and the supporting plate 215 through the one-way valve, and finally when the inner cavity of the outer cylinder outside the one-way valve 212 is basically filled with the viscous oil, oil injection is stopped, and the one-way valve is closed. Finally, the cover plate 2112 is welded and fixed to the outer cylinder 211.
As can be seen from fig. 2 and 3, the mounting seat 22 includes a bottom plate 221, two side plates 222 and reinforcing rib plates 223, the two side plates are fixed on the outer surface of the bottom plate in parallel, and the reinforcing rib plates are respectively disposed between the side plates and the bottom plate.
The bottom plate of the mounting support 22 is connected with the main beam 1 through an expansion bolt LS.
When the girder is prefabricated in a factory, the mounting hole of the expansion bolt is reserved at a specified position, and the mounting support is fixed after the girder is prefabricated.
After the girder 1 is installed on the pier 3 in the construction site, the viscous damper 21 is installed between the installation supports 22 at the end parts of the adjacent girders at the two longitudinal sides through a pin shaft XZ: and the lug plate at the outer end of the piston rod and the lug plate at the outer side of the sealing plate are respectively inserted between the two side plates of the mounting support and hinged through a pin shaft. In order to prevent the falling and improve the installation efficiency, the pin shaft adopts a T-shaped pin shaft which is provided with an opening limiting pin.
The energy consumption principle of the viscous damper is as follows:
when the piston rod of the viscous damper is pulled outwards under the action of an earthquake, viscous oil in the damping bin generates damping energy consumption on the piston rod, when the piston rod is pushed inwards under the action of the earthquake, the viscous oil between the sliding plate and the supporting plate generates damping energy consumption on the piston rod, and when the sliding plate is in contact with the buffer spring, the buffer spring can limit the retreating stroke of the piston rod. When the piston rod retreats to cause viscous oil in the damping bin to overflow to the region at the rear side of the supporting plate, the one-way valve can automatically supplement the viscous oil in the damping bin, so that the durability of the device is enhanced, the service life of the device is prolonged, the device can be ensured to be in service in a CRTS II-shaped bridge rail system for a long time after being installed, the cost loss is reduced, and the economic benefit is improved.
After the high-speed railway track-bridge system is installed, energy dissipation devices are arranged at beam joints of the girders at two longitudinal sides, two ends of each energy dissipation device are respectively regulated with the adjacent girders through installation supports, and piston rods of viscous dampers of the energy dissipation devices can stretch and dissipate energy when the viscous dampers are subjected to earthquake action, so that collision between the adjacent girders is effectively prevented, the problems of girder displacement increase, installation support failure and the like are solved, and main structures such as piers and the like are protected.
Adjacent main beams on the same side are connected into a whole through energy dissipation devices, when small earthquake energy acts on the main beams, all the energy dissipation devices consume energy simultaneously and cannot damage a bridge structure, so that a track system supported by the bridge is protected, when large earthquake energy acts on the main beams, all the energy dissipation devices consume the earthquake energy, and when the energy dissipation devices are damaged and fail, the main beams connected into the whole are deformed coordinately, so that the earthquake energy can be transferred to a roadbed through the track structure, and the roadbed replaces the track structure to bear damage risks.
Compared with a track system, the damage of the roadbed is easier to repair after the earthquake, the energy consumption device can directly disassemble the viscous damper and replace the pin shaft between the viscous damper and the mounting support, and the operation is quick.
In summary, the energy consumption device is arranged between the main beams at the two longitudinal sides of the railway bridge, so that the railway bridge has the following advantages: the incoordination degree of the CRTS II-shaped bridge rail system caused by large difference deformation among all spans can be greatly reduced; the risk of beam collision caused by overlarge relative displacement between beams of the CRTS II-shaped bridge rail system can be reduced. The inconsistent damage of each component of the CRTS II-shaped bridge rail system caused by the inconsistent deformation among the spans can be reduced. The method can realize the aim of transferring the damage risk of the CRTS II-shaped bridge rail system track to the roadbed structure under the action of the earthquake. The damage range of the roadbed track structure based on risk transfer is limited, and the rapid repairing process of the post-earthquake CRTS II-shaped bridge track system can be accelerated. The consistency between beams of the CRTS II type bridge rail system under the action of an earthquake is enhanced, so that the constraint effect of the track is improved, the counter force of the roadbed is increased, finally, the risk of the track structure is transferred to the roadbed to reduce the damage of the earthquake to the CRTS II type bridge rail system, the purposes of preventing small earthquake and repairing large earthquake can be achieved, the traffic and railway networks can be quickly recovered after the earthquake, the time for recovering the traffic after the earthquake is reduced, the guarantee is provided for the transportation of materials and personnel after the earthquake, the optimal rescue time after the earthquake occurs, the traffic support is provided for the recovery after the earthquake in the area, and valuable channels are built for rescuing the properties and lives of people.
Of course, the high-speed railway track-bridge system which is already put into use can be transformed, and the energy consumption devices are arranged at the girder and beam seams at the two longitudinal sides of the bridge, so that the earthquake risk is transferred to the roadbed.
Claims (10)
1. A method capable of transferring earthquake risk of a CRTS II-shaped bridge track system is characterized by comprising the following steps: the method is characterized in that energy dissipation devices are arranged at the beam joints of the prefabricated main beams at the two longitudinal sides of the high-speed railway bridge, each energy dissipation device comprises a viscous damper and an installation support hinged to the two ends of the viscous damper, the installation supports are respectively connected and fixed with the end parts of the adjacent main beams through fasteners, when the viscous dampers are subjected to small earthquake action, earthquake energy can be consumed through the viscous dampers, when the viscous dampers are subjected to large earthquake action, the energy is consumed through the viscous dampers, and then the earthquake energy is transferred to a roadbed through a track structure.
2. The method of claim 1, wherein: the viscous damper comprises an outer barrel, an elastic buffering component, a one-way valve and a piston rod, wherein a sealing plate is fixed at one end of the outer barrel, a sealing cover plate is arranged at the other end of the outer barrel, the outer end of the elastic buffering component is fixed with the inner wall of the sealing plate, the one-way valve is arranged at the outer section of the inner cavity of the outer barrel, the outer wall of a valve body is fixed with the inner wall of the outer barrel, and the inner end of a rod body of the piston rod sequentially penetrates through the sealing cover plate and the one-way valve and then is connected with a sliding plate.
3. The method of claim 2, wherein: the elastic buffer assembly comprises buffer springs and a supporting plate, wherein the inner side of the supporting plate is fixedly provided with a plurality of buffer springs, the outer ends of the buffer springs are fixed with the sealing plate, the outer center of the supporting plate is fixedly provided with one buffer spring, and the periphery of the supporting plate is nested with a rubber sealing ring.
4. The method of claim 2, wherein: and the periphery of the sliding plate is nested with a rubber sealing ring.
5. The method of claim 3, wherein: the valve body of the one-way valve is provided with an axial center hole for being installed on the piston rod, a rubber sealing ring is nested at the axial center hole, and one or more oil inlet holes are formed in the valve body.
6. The method of claim 3, wherein: the area between the one-way valve and the cover plate in the inner cavity of the outer barrel is used as an oil storage bin, the area between the one-way valve and the support plate is used as a damping bin, and viscous oil is supplemented to the damping bin through the one-way valve.
7. The method of claim 3, wherein: the sealing cover plate is made of metal materials the same as that of the outer barrel, a center hole used for installing the piston rod is formed in the center of the sealing cover plate, and a rubber sealing ring is nested in the center hole.
8. The method of claim 3, wherein: the mounting support comprises a bottom plate, two side plates and reinforcing rib plates, wherein the two side plates are fixed on the outer surface of the bottom plate in parallel, and the reinforcing rib plates are respectively arranged between the side plates and the bottom plate.
9. The method of claim 8, wherein: the bottom plate and the main beam are fixedly connected through expansion bolts.
10. The method of claim 8, wherein: the outer end of the piston rod is provided with an ear plate along the outer edge of the axial center face, the ear plate is arranged at the center of the outer surface of the sealing plate, and the two ear plates are respectively inserted into the two side plates of the mounting support and hinged through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210663886.2A CN115058958A (en) | 2022-06-10 | 2022-06-10 | Method capable of transferring earthquake risk of CRTS II-shaped bridge-rail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210663886.2A CN115058958A (en) | 2022-06-10 | 2022-06-10 | Method capable of transferring earthquake risk of CRTS II-shaped bridge-rail system |
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| CN115058958A true CN115058958A (en) | 2022-09-16 |
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| CN202210663886.2A Pending CN115058958A (en) | 2022-06-10 | 2022-06-10 | Method capable of transferring earthquake risk of CRTS II-shaped bridge-rail system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183530A (en) * | 1996-12-26 | 1998-07-14 | Mitsubishi Heavy Ind Ltd | Reinforcing method for bridge |
| JP2015212489A (en) * | 2014-05-02 | 2015-11-26 | 首都高速道路株式会社 | Damper for use in earthquake-resistant structure of bridge and recovery method of earthquake-resistant structure |
| CN106704445A (en) * | 2017-03-31 | 2017-05-24 | 张策 | Damper |
| CN206512589U (en) * | 2017-02-24 | 2017-09-22 | 西南交通大学 | A kind of longitudinal girder falling of bridge and crash device |
| CN206668852U (en) * | 2017-04-27 | 2017-11-24 | 华东交通大学 | Biliquid circulation road Novel magneto-rheological damper |
| WO2020103458A1 (en) * | 2018-11-21 | 2020-05-28 | 孙丽 | Sma spring-stf viscous damper |
| CN111663433A (en) * | 2020-07-08 | 2020-09-15 | 中国民航大学 | Self-resetting SMA-viscous vibration reduction damper |
| CN213358305U (en) * | 2020-08-05 | 2021-06-04 | 李秋红 | Bridge damping support |
| CN214530165U (en) * | 2021-03-13 | 2021-10-29 | 王塬 | Anti-seismic device for highway bridge |
| CN214999046U (en) * | 2021-06-25 | 2021-12-03 | 沈阳长城液压机械制造有限公司 | Hydraulic shock absorber for tracked vehicle |
| CN216589735U (en) * | 2021-12-30 | 2022-05-24 | 无锡西格尔能源科技有限公司 | Flexible resonance liquid damper for wind turbine unit |
-
2022
- 2022-06-10 CN CN202210663886.2A patent/CN115058958A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10183530A (en) * | 1996-12-26 | 1998-07-14 | Mitsubishi Heavy Ind Ltd | Reinforcing method for bridge |
| JP2015212489A (en) * | 2014-05-02 | 2015-11-26 | 首都高速道路株式会社 | Damper for use in earthquake-resistant structure of bridge and recovery method of earthquake-resistant structure |
| CN206512589U (en) * | 2017-02-24 | 2017-09-22 | 西南交通大学 | A kind of longitudinal girder falling of bridge and crash device |
| CN106704445A (en) * | 2017-03-31 | 2017-05-24 | 张策 | Damper |
| CN206668852U (en) * | 2017-04-27 | 2017-11-24 | 华东交通大学 | Biliquid circulation road Novel magneto-rheological damper |
| WO2020103458A1 (en) * | 2018-11-21 | 2020-05-28 | 孙丽 | Sma spring-stf viscous damper |
| CN111663433A (en) * | 2020-07-08 | 2020-09-15 | 中国民航大学 | Self-resetting SMA-viscous vibration reduction damper |
| CN213358305U (en) * | 2020-08-05 | 2021-06-04 | 李秋红 | Bridge damping support |
| CN214530165U (en) * | 2021-03-13 | 2021-10-29 | 王塬 | Anti-seismic device for highway bridge |
| CN214999046U (en) * | 2021-06-25 | 2021-12-03 | 沈阳长城液压机械制造有限公司 | Hydraulic shock absorber for tracked vehicle |
| CN216589735U (en) * | 2021-12-30 | 2022-05-24 | 无锡西格尔能源科技有限公司 | Flexible resonance liquid damper for wind turbine unit |
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