CN113481837A - Track bridge subtracts isolation device with pressure monitoring - Google Patents
Track bridge subtracts isolation device with pressure monitoring Download PDFInfo
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- CN113481837A CN113481837A CN202110764174.5A CN202110764174A CN113481837A CN 113481837 A CN113481837 A CN 113481837A CN 202110764174 A CN202110764174 A CN 202110764174A CN 113481837 A CN113481837 A CN 113481837A
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- Prior art keywords
- seismic isolation
- oil
- reduction device
- pressure monitoring
- piston
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- 238000002955 isolation Methods 0.000 title claims abstract description 55
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 230000009467 reduction Effects 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000005012 migration Effects 0.000 claims description 2
- 238000013508 migration Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 12
- 238000013016 damping Methods 0.000 abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 44
- 230000035882 stress Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
-
- 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a track bridge seismic isolation and reduction device with pressure monitoring, which comprises a seismic isolation support core, an upper support plate, a lower support plate and a limit detection device, wherein the limit detection device comprises an upper mounting seat, a limit detector and a limit column; the limiting detection device comprises a shell, a sliding block, a piston rod, a piston and a fixed sleeve, wherein a pressure oil cavity, an oil outlet cavity, an oil storage cavity and a pressure sensor are arranged in the shell; according to the invention, the limit detector and the limit column are arranged, the limit column moves up and down to drive the sliding block to move horizontally, the impact of the limit column on the sliding block is reduced by adopting the spring and the hydraulic damping shock absorption oil circuit, the impact of the vibration of a beam body on a core body of the shock insulation support is reduced, the stress condition of the bridge shock insulation support is monitored in real time through the pressure sensor in the oil circuit, the shear deformation failure of the support is avoided, and the shock resistance and the pressure resistance of the support are improved.
Description
Technical Field
The invention belongs to the technical field of methods or equipment special for erecting or assembling bridges, and particularly relates to a track bridge seismic isolation and reduction device with pressure monitoring.
Background
The existing support for the track bridge mainly comprises a cast steel support (comprising a rocking shaft, a roll shaft and a hinged shaft support), a basin-type rubber support, a cylindrical support, a spherical support and the like, wherein the support is arranged in a high-intensity area, and the design means for dealing with the earthquake is to increase horizontal rigidity and perform rigid resistance on earthquake force, so that the damage of lower structures such as bridge piers and abutments and even the collapse of the bridge are easily caused; another type of support is shown in fig. 1, which is a lead core shock insulation rubber support, a high damping rubber support, a horizontal force dispersion type support and other shock insulation supports, and can insulate the bridge, so that the damage effect of the seismic force on the bridge is reduced, particularly, the earthquake in various districts in the past is continuous, and for some track bridges in mountainous areas and obvious earthquake districts, the maintenance and the repair of the support cannot be in place in time.
The Chinese patent application numbers are: 201310666919.X, with a patent name: light rail bridge special isolation bearing, it includes isolation bearing core (1) and the upper and lower steel sheet of connecting rather than being connected, its characterized in that: the width of the lateral direction of the upper connecting steel plate (2) is larger than that of the lower connecting steel plate (3), shearing devices are symmetrically arranged on the positions, which are widened at the two sides of the upper connecting steel plate, the operating state of the shock insulation support is detected by observing the position state of the shearing plates, and the problems of untimely detection and poor safety still exist.
Disclosure of Invention
In view of the above, the invention aims to provide a track bridge seismic isolation and reduction device with pressure monitoring, the track bridge seismic isolation and reduction device with pressure monitoring is characterized in that a limit detector and a limit column are arranged around a support, the surfaces of sliding blocks in the limit column and the limit detector are obliquely connected, the limit column moves up and down to drive the sliding block to move horizontally, a spring and a hydraulic damping oil path are adopted to reduce the impact of the limit column on the sliding block, so that the impact of the vibration of a beam body on a core body of a seismic isolation support is reduced, the stress condition of the bridge seismic isolation and reduction support is monitored in real time through a pressure sensor in the hydraulic damping oil path, the shear deformation failure of the support is avoided, and the seismic resistance and the pressure resistance of the support are improved.
In order to achieve the technical purpose, the track bridge seismic isolation and reduction device with the pressure monitoring function comprises a seismic isolation support core body, an upper support plate and a lower support plate which are connected with the seismic isolation support core body, wherein a limit detection device is arranged between the upper support plate and the lower support plate and around the seismic isolation support core body, and comprises an upper mounting seat arranged on the side wall of the upper support plate, a limit detector arranged on the side wall of the lower support plate and a limit column connected between the upper mounting seat and the limit detector;
spacing detector includes the casing, sets up horizontal migration's slider in the casing, with slider fixed connection's piston rod, sets up the piston and the fixed cover of suit on the piston rod at the piston rod tip, enclose between piston and the casing and become to press the oil pocket, form out the oil pocket between fixed cover, piston and the casing, it is provided with the oil storage chamber with a play oil chamber intercommunication to lie in a play oil chamber top in the casing, the piston lower part is provided with the oil pressing hole that the intercommunication pressed oil chamber and a play oil pocket, press the oil intracavity and be provided with pressure sensor, fixed cover and casing fixed connection, be provided with the spring of suit on the piston rod between fixed cover and the slider, the bottom that spacing post is used for being connected with the slider in extending to the casing sets up to the inclined plane, the slider is kept away from one end upper portion of piston rod and is provided with the inclined plane I with the inclined plane adaptation.
Further, the fixed sleeve is connected in the shell in a sealing mode through external threads.
Furthermore, the fixed sleeve is provided with a dustproof sleeve and a sealing ring at one end close to the sliding block.
Furthermore, the pressure sensor is fixedly arranged on the surface of one end, close to the oil pressing cavity, of the piston, a channel is arranged in the center of the piston rod, and a signal wire electrically connected with the pressure sensor is arranged in the channel.
Furthermore, a through hole through which the signal wire penetrates is formed in the sliding block, and a wire outlet groove which is arranged corresponding to the through hole and used for allowing the electric wire to pass is formed in the side wall of the shell.
Further, the diameter of the oil pressing hole is set to be 2-4 mm.
Further, the upper surface of the oil storage cavity is provided with a transparent cover, and the bottom of the oil storage cavity is provided with an oil outlet communicated with the oil outlet cavity.
Further, go up mount pad and spacing detector and pass through the bolt and can dismantle the connection on upper bracket board lateral wall and bottom suspension bedplate lateral wall.
Further, the isolation bearing core body comprises an upper sealing plate, a lower sealing plate, and a steel plate and a rubber layer which are arranged between the upper sealing plate and the lower sealing plate, wherein the steel plate and the rubber layer are arranged in a one-to-one overlapping mode.
Further, the one end that the piston was kept away from to the casing is provided with sealed lid, sealed lid passes through bolt demountable installation on the casing.
The invention has the beneficial effects that:
1. according to the track bridge seismic isolation and reduction device with pressure monitoring, the limiting detectors and the limiting columns are arranged on the peripheries of the supports, the surfaces of the sliding blocks in the limiting columns and the limiting detectors are obliquely connected, the limiting columns move up and down to drive the sliding blocks to move horizontally, the impact of the limiting columns on the sliding blocks is reduced by adopting springs and hydraulic damping shock absorption oil ways, the impact of the vibration of a beam body on a core body of the seismic isolation support is reduced, the stress condition of the bridge seismic isolation and reduction support is monitored in real time through pressure sensors in the hydraulic damping shock absorption oil ways, the shear deformation failure of the support is avoided, and the seismic resistance and pressure resistance of the support are improved.
2. The track bridge seismic isolation and reduction device with the pressure monitoring function can acquire the stress values of the seismic isolation and reduction support when a motor car and a train pass on a track in real time and feed the stress values back to the control center through the oscillogram, so that the remote monitoring is facilitated, and meanwhile, the stress values of the seismic isolation and reduction support are acquired in an earthquake area and fed back to the control center through the oscillogram, so that the seismic value acquisition is facilitated.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a structural schematic diagram of an installation state of an existing seismic isolation and reduction device for a track bridge;
FIG. 2 is a schematic structural diagram of the seismic isolation and reduction device for the track bridge with pressure monitoring, provided by the invention;
FIG. 3 is a side view of the seismic isolation and reduction device for the rail bridge with pressure monitoring, provided by the invention;
FIG. 4 is a top view of a limit detector in the seismic isolation and reduction device for a track bridge with pressure monitoring according to the invention;
FIG. 5 is a working state diagram of a limit detector in the seismic isolation and reduction device for the rail bridge with pressure monitoring.
Reference numerals: 1-a beam body; 2-pier body; 3-a track; 4-an upper support plate; 5-a lower support plate; 6-upper connecting bolts; 7-lower connecting bolts; 8-isolation bearing core body; 9-a limit steel bar; 10-fixing the bolt; 11-upper mounting seat; 12-a limit detector; 13-a limiting column; 14-a housing; 15-a slide block; 16-a piston rod; 17-fixing the sleeve; 18-a spring; 19-a piston; 20-pressing oil cavity; 21-a pressure sensor; 22-oil pressing holes; 23-oil outlet chamber; 24-an oil storage chamber; 25-oil outlet.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 2-5, the structural schematic diagram of the track bridge seismic isolation and reduction device with pressure monitoring of the present invention is a track bridge seismic isolation and reduction device with pressure monitoring of the present invention, which includes a seismic isolation support core 8, an upper support plate 4 and a lower support plate 5 connected thereto, a limit detection device is disposed between the upper support plate 4 and the lower support plate 5 and around the seismic isolation support core 8, and the limit detection device includes an upper mounting seat 11 disposed on a side wall of the upper support plate 4, a limit detector 12 disposed on a side wall of the lower support plate 5, and a limit column 13 connected between the upper mounting seat 11 and the limit detector 12;
the limit detector 12 comprises a shell 14, a slide block 15 horizontally moving in the shell 14, a piston rod 16 fixedly connected with the slide block 15, a piston 19 arranged at the end of the piston rod 16 and a fixing sleeve 17 sleeved on the piston rod 16, a pressure oil chamber 20 is enclosed between the piston 19 and the shell 14, an oil outlet chamber 23 is formed between the fixing sleeve 17, the piston 19 and the shell 14, an oil storage chamber 24 communicated with the oil outlet chamber 23 is arranged above the oil outlet chamber 23 in the shell 14, an oil pressing hole 22 communicated with the oil pressing chamber and the oil outlet chamber is arranged at the lower part of the piston 19, a pressure sensor 21 is arranged in the oil pressing chamber 20, the fixing sleeve 17 is fixedly connected with the shell 14, a spring 18 sleeved on the piston rod 16 is arranged between the fixing sleeve 17 and the slide block 15, and the bottom of the limiting column 13 extending into the shell and used for being connected with the slide block 15 is arranged as an inclined plane, the upper part of one end of the sliding block 15 far away from the piston rod 16 is provided with an inclined plane I matched with the inclined plane.
In the installation process of the rail bridge, the isolation bearing core body 8 is installed between the beam body 1 and the pier body 2, then the surface of the beam body is provided with the rail, in the process of rail running of a bullet train or a train, the rail 3 and the beam body 1 can generate very fast vibration, the limit detector 12 and the limit column 13 are arranged around the support, the limit column 12 and the limit detector 13 are obliquely connected on the surface of a sliding block, the limit column 13 moves up and down to drive the sliding block 15 to move horizontally, the impact of the limit column 13 on the sliding block 15 is reduced by adopting a spring and a hydraulic damping oil path, so that the impact of the beam body vibration on the core body 8 of the shock insulation support is reduced, the stress condition of the bridge seismic isolation and reduction support is monitored in real time through a pressure sensor in a hydraulic damping oil way, the shear deformation failure of the support is avoided, and the seismic resistance and the pressure resistance of the support are improved.
In the embodiment, a pressure sensor is used for acquiring a pressure value in real time and transmitting the pressure value to a server, and the server converts a pressure signal into a value and transmits the value to a video module and displays the value on a display screen in a oscillogram mode; the server sends pressure value to analysis module simultaneously, and analysis module carries out the analysis to pressure value, if surpass the specified value, analysis module sends early warning signal and takes notes the unusual condition of pressure value through the server, and when shock insulation support ageing, edge damage and subside appear, numerical value unusual will appear in pressure value, and the server sends early warning signal and reminds managers to overhaul the change to shock insulation support.
The preferred embodiment, fixed cover passes through external screw thread sealing connection in the casing, and this structure of this embodiment makes things convenient for fixed cover 17 seal installation in casing 14, makes things convenient for the installation of piston rod and piston, and this embodiment has another kind of structure fixed cover 17 is close to slider 15 one end and is provided with dirt proof boot and sealing washer, and this structure of this embodiment is favorable to improving the leakproofness of oil pocket 23, and fixed cover 17 of this embodiment passes through bolt demountable installation in the casing, then seals through dirt proof boot and sealing washer.
In a preferred embodiment, the pressure sensor 21 is fixedly arranged on the surface of one end of the piston 19 close to the oil pressing cavity 20, a channel is arranged at the center in the piston rod 16, and a signal line electrically connected with the pressure sensor is arranged in the channel.
In a preferred embodiment, the slider is provided with a through hole through which a signal line penetrates, and the side wall of the shell is provided with a wire outlet groove which is correspondingly arranged with the through hole and used for passing the electric wire.
In a preferred embodiment, the diameter of the oil pressing hole is set to be 2-4mm, and a hydraulic damping oil path is adopted in the embodiment.
The preferred embodiment, 24 upper surfaces in oil storage chamber are provided with the transparent cover, oil storage chamber bottom is provided with the oil outlet with the chamber intercommunication that produces oil, and the convenient scene of this embodiment is through the transparent cover monitoring oil storage intracavity hydraulic oil condition, the convenient ageing decline condition of monitoring isolation bearing.
In the preferred embodiment, the upper mounting seat 11 and the limit detector 12 are detachably connected to the side wall of the upper support plate 4 and the side wall of the lower support plate 5 through bolts, the structure of the embodiment is favorable for detaching and mounting the limit detector 12 and the limit column 13, and the upper support plate 4 and the lower support plate 5 are respectively connected to the beam body 1 and the pier body 2 through the upper connecting bolt 6 and the lower connecting bolt 7.
In a preferred embodiment, the isolation bearing core 8 comprises an upper sealing plate, a lower sealing plate, and a steel plate and a rubber layer which are arranged between the upper sealing plate and the lower sealing plate, wherein the steel plate and the rubber layer are arranged in a one-to-one overlapping manner.
In a preferred embodiment, a sealing cover is arranged at one end of the housing far away from the piston, the sealing cover is detachably mounted on the housing through a bolt, and the sliding block 15, the piston rod 16, the fixed sleeve 17, the piston 19 and the pressure sensor 21 are conveniently mounted on the housing 14 through the sealing cover in the embodiment.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a track bridge subtracts isolation device with pressure monitoring, includes isolation bearing core, the upper bracket board and the bottom suspension bedplate of being connected with it, its characterized in that: a limit detection device is arranged between the upper support plate and the lower support plate and around the isolation support core body, and comprises an upper mounting seat arranged on the side wall of the upper support plate, a limit detector arranged on the side wall of the lower support plate and a limit column connected between the upper mounting seat and the limit detector;
spacing detector includes the casing, sets up horizontal migration's slider in the casing, with slider fixed connection's piston rod, sets up the piston and the fixed cover of suit on the piston rod at the piston rod tip, enclose between piston and the casing and become to press the oil pocket, form out the oil pocket between fixed cover, piston and the casing, it is provided with the oil storage chamber with a play oil chamber intercommunication to lie in a play oil chamber top in the casing, the piston lower part is provided with the oil pressing hole that the intercommunication pressed oil chamber and a play oil pocket, press the oil intracavity and be provided with pressure sensor, fixed cover and casing fixed connection, be provided with the spring of suit on the piston rod between fixed cover and the slider, the bottom that spacing post is used for being connected with the slider in extending to the casing sets up to the inclined plane, the slider is kept away from one end upper portion of piston rod and is provided with the inclined plane I with the inclined plane adaptation.
2. The seismic isolation and reduction device with the pressure monitoring function for the rail bridge as claimed in claim 1, wherein the seismic isolation and reduction device comprises: the fixed sleeve is connected in the shell in a sealing mode through external threads.
3. The seismic isolation and reduction device with the pressure monitoring function for the rail bridge as claimed in claim 1, wherein the seismic isolation and reduction device comprises: and one end of the fixed sleeve, which is close to the sliding block, is provided with a dustproof sleeve and a sealing ring.
4. The track bridge seismic isolation and reduction device with pressure monitoring as claimed in any one of claims 1 to 3, wherein: the pressure sensor is fixedly arranged on the surface of one end, close to the oil pressing cavity, of the piston, a channel is arranged in the center of the piston rod, and a signal wire electrically connected with the pressure sensor is arranged in the channel.
5. The railroad bridge seismic isolation and reduction device with pressure monitoring as claimed in claim 4, wherein: the slider is provided with a through hole through which a signal wire penetrates, and the side wall of the shell is provided with a wire outlet groove which is arranged corresponding to the through hole and used for passing the electric wire.
6. The seismic isolation and reduction device with the pressure monitoring function for the rail bridge as claimed in claim 1, wherein the seismic isolation and reduction device comprises: the diameter of the oil pressing hole is set to be 2-4 mm.
7. The seismic isolation and reduction device with the pressure monitoring function for the rail bridge as claimed in claim 1, wherein the seismic isolation and reduction device comprises: the oil storage chamber upper surface is provided with the transparent cover, the oil storage chamber bottom is provided with the oil outlet with the chamber intercommunication that produces oil.
8. The seismic isolation and reduction device with the pressure monitoring function for the rail bridge as claimed in claim 1, wherein the seismic isolation and reduction device comprises: go up mount pad and spacing detector and pass through the bolt and can dismantle the connection on upper bracket board lateral wall and bottom suspension bedplate lateral wall.
9. The seismic isolation and reduction device with the pressure monitoring function for the rail bridge as claimed in claim 1, wherein the seismic isolation and reduction device comprises: the isolation bearing core body comprises an upper sealing plate, a lower sealing plate, a steel plate and a rubber layer, wherein the steel plate and the rubber layer are arranged between the upper sealing plate and the lower sealing plate, and the steel plate and the rubber layer are arranged in a one-to-one overlapping mode.
10. The railroad bridge seismic isolation and reduction device with pressure monitoring as claimed in claim 4, wherein: the one end that the piston was kept away from to the casing is provided with sealed lid, sealed lid passes through bolt demountable installation on the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764174.5A CN113481837A (en) | 2021-07-07 | 2021-07-07 | Track bridge subtracts isolation device with pressure monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110764174.5A CN113481837A (en) | 2021-07-07 | 2021-07-07 | Track bridge subtracts isolation device with pressure monitoring |
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| Publication Number | Publication Date |
|---|---|
| CN113481837A true CN113481837A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110764174.5A Pending CN113481837A (en) | 2021-07-07 | 2021-07-07 | Track bridge subtracts isolation device with pressure monitoring |
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| Country | Link |
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| CN (1) | CN113481837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116254760A (en) * | 2023-05-06 | 2023-06-13 | 菏泽城建工程发展集团有限公司 | Cable shock attenuation spherical support with shear resistance transition steel sheet structure |
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| US20180066406A1 (en) * | 2016-07-18 | 2018-03-08 | Shenzhen Municipal Design & Research Institute Co., Ltd. | Lead core rubber seismic isolation bearing, intelligent bearing and bearing monitoring system |
| CN208668260U (en) * | 2018-07-08 | 2019-03-29 | 长沙三远钢结构有限公司 | A kind of steel structure bridge shock mount |
| CN109632154A (en) * | 2019-01-31 | 2019-04-16 | 苏州美仑凯力电子有限公司 | A kind of vibration isolator rubber bearing real-time testing system and preparation method thereof |
-
2021
- 2021-07-07 CN CN202110764174.5A patent/CN113481837A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018423A (en) * | 2014-06-17 | 2014-09-03 | 长沙理工大学 | Intelligent shock-absorbing tensile force-measuring support |
| US20180066406A1 (en) * | 2016-07-18 | 2018-03-08 | Shenzhen Municipal Design & Research Institute Co., Ltd. | Lead core rubber seismic isolation bearing, intelligent bearing and bearing monitoring system |
| CN206308609U (en) * | 2016-12-01 | 2017-07-07 | 上海浦东建筑设计研究院有限公司 | A kind of bridge combines vibration absorption and isolation support with ball steel with SMA Tendons |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116254760A (en) * | 2023-05-06 | 2023-06-13 | 菏泽城建工程发展集团有限公司 | Cable shock attenuation spherical support with shear resistance transition steel sheet structure |
| CN116254760B (en) * | 2023-05-06 | 2023-10-31 | 菏泽城建工程发展集团有限公司 | Cable shock attenuation spherical support with shear resistance transition steel sheet structure |
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Application publication date: 20211008 |