CN112942088A - Bridge limit control modulus expansion joint device - Google Patents
Bridge limit control modulus expansion joint device Download PDFInfo
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- CN112942088A CN112942088A CN202110151711.9A CN202110151711A CN112942088A CN 112942088 A CN112942088 A CN 112942088A CN 202110151711 A CN202110151711 A CN 202110151711A CN 112942088 A CN112942088 A CN 112942088A
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- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 description 10
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
Abstract
The application relates to a bridge limit control modulus expansion joint device, and relates to the technical field of bridge engineering. The modulus expansion joint device comprises a plurality of supporting limit components arranged at intervals along the transverse direction of a bridge, a movable connecting beam is arranged between two supporting box bodies of each supporting limit component, one end of the movable connecting beam is at least partially overlapped with one supporting box body, a first-stage limit control component is arranged on the overlapped section of the movable connecting beam and the supporting box body and used for limiting the length of the overlapped section to be not less than the preset length, a second-stage limit control component is arranged between the two supporting box bodies, one end of the second-stage limit control component is connected with one supporting box body, and the second-stage limit control component is slidably attached to the movable connecting beam and used for being locked with the movable connecting beam or being unlocked under the control of a controller. The application provides a modulus expansion joint device, the modulus expansion joint device of having solved among the correlation technique can not carry out the problem of multistage fortification to the earthquake.
Description
Technical Field
The application relates to the technical field of bridge engineering, in particular to a bridge limit control modulus expansion joint device.
Background
With the improvement of the design and construction level of bridges, the requirements of bridge structures on disaster prevention and reduction are higher and higher, and in recent years, earthquake disasters frequently occur, bridges serve as weak links for earthquake prevention on traffic lines, once the bridges are damaged in an earthquake, the whole traffic network can be directly caused to be collapsed, and great difficulty is brought to disaster relief work after the earthquake, so that a plurality of bridge earthquake reduction and isolation devices, such as various rubber earthquake reduction and isolation supports, friction type earthquake reduction and isolation supports, metal dampers, viscous dampers and various wind resistance devices, are appeared at present. In contrast, the design of expansion joints for disaster prevention and reduction is not considered enough, and the expansion joints are used as important connecting devices between beams in bridge structures, have special functions and roles in bridge structures, and are weak links in engineering failures.
In the related technology, the large-displacement modulus type expansion joint device is mainly processed by selecting hot-rolled special-shaped steel and sealing rubber strips as main materials, has the characteristics of simple structure, convenience in installation, stable performance and the like, can adapt to larger displacement capacity, and is widely applied to the construction of large-span bridges.
However, the current modular expansion joint devices have some disadvantages and need to be improved. The most important problem is that the current modular expansion joint device only plays a role of connecting beam bodies at two sides of a bridge under the earthquakes with medium and low intensity, and the limit expansion structure of the expansion joint device is damaged under the extreme conditions of high intensity earthquakes, especially when the displacement generated between the upper structure and the lower structure of the bridge exceeds the expansion limit of the expansion joint device; although a part of expansion joint devices can limit the bridge to a certain extent when the bridge is displaced to a certain extent, under the condition of a major earthquake, because the structural integrity of the bridge cannot be guaranteed well and timely, the expansion joint devices still have the risk of being damaged, and the expansion joint devices often cannot take corresponding protective measures for the expansion joint and the bridge according to the actual condition of the earthquake; finally, the existing guyed expansion joint device always needs to bear load at all times no matter whether an earthquake exists or not or when the earthquake exists or extremely severe weather faces, so that the service life is greatly reduced to a certain extent, and the maintenance and replacement cost is increased.
Disclosure of Invention
The embodiment of the application provides a spacing control modulus expansion joint device of bridge to the problem that modulus expansion joint device among the solution correlation technique can not carry out multistage fortification to the earthquake.
The application provides a spacing control modulus expansion joint device of bridge, it includes the spacing subassembly of a plurality of supports that set up along the bridge transverse separation, its characterized in that, each the spacing subassembly of support all includes:
the supporting box comprises two supporting box bodies, wherein a movable connecting beam is arranged between the two supporting box bodies, one end of the movable connecting beam is fixedly connected with one of the supporting box bodies, and the other end of the movable connecting beam is at least partially overlapped with the other supporting box body;
the primary limit control assembly is arranged on the overlapped section of the movable connecting beam and the supporting box body and is used for limiting the length of the overlapped section to be not less than the preset length;
and the second-stage limit control assembly is arranged between the two supporting box bodies, one end of the second-stage limit control assembly is connected with one of the supporting box bodies, and the second-stage limit control assembly is attached to the movable connecting beam in a sliding manner and is used for locking or unlocking with the movable connecting beam under the control of the controller.
In some embodiments, the primary limit control assembly includes at least two stay rings disposed at intervals, the stay rings are disposed along a transverse direction parallel to the bridge and are inserted into the overlapped sections of the movable connecting beam and the supporting box, and both ends of each stay ring at least partially extend out of both sides of the supporting box.
In some embodiments, the number of the inhaul cable rings is 2-19, and the inhaul cable rings are made of steel strands, steel wire bundles or carbon fibers.
In some embodiments, the preset length ranges from 160 mm to 320 mm.
In some embodiments, the second-stage position-limiting control assembly includes a control board, the control board is disposed at the bottom of the movable connecting beam, and one end of the control board is fixedly connected to one of the supporting boxes, the top surface of the control board is slidably attached to the bottom of the movable connecting beam, and the control board is configured to be connected to the controller and to be locked or unlocked with the movable connecting beam under the control of the controller.
In some embodiments, a coil is disposed inside the control board, the top surface of the control board is a magnetic conductive panel, and the coil is connected to the magnetic conductive panel to control the magnetic conductive panel to be locked or unlocked with the movable connection beam under the control of the controller.
In some embodiments, a plurality of transverse connecting beams are arranged between every two adjacent supporting and limiting assemblies at intervals, the transverse connecting beams are arranged along the transverse direction parallel to the bridge, and both ends of each transverse connecting beam at least partially extend into the corresponding side wall of the movable connecting beam to be connected.
In some embodiments, the supporting box body is fixedly connected with the movable connecting beam and the control panel through welding.
In some embodiments, the inside of the overlapped section of the supporting box body and the movable connecting beam is provided with an upper pressing support and a sliding support from top to bottom.
In some embodiments, the bridge further comprises a supporting beam assembly, the supporting beam assembly is arranged on the supporting limit assemblies along the transverse direction parallel to the bridge and is connected with the corresponding movable connecting beams below the supporting beam assembly, and the sliding support and the lower pressing support are arranged between the supporting beam assembly and the movable connecting beams from top to bottom.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a bridge limit control modulus expansion joint device which respectively comprises a primary limit control assembly and a secondary limit control assembly, wherein relative displacement occurs between small-grade seismic beam bodies, and the primary limit control assembly can control the relative longitudinal displacement of a bridge structure by controlling the relative movement of a supporting box body and a movable connecting beam, so that the seismic energy is effectively consumed, and the mutual collision of the front beam body and the rear beam body is buffered; the second-stage limit control assembly can timely receive a control instruction of the controller, and the controller can timely control the second-stage limit control assembly according to a judgment result of the early warning system so as to control the locking or unlocking between the second-stage limit control assembly and the movable connecting beam, so that the expansion joint is automatically locked when the expansion joint is locked, the collision of the bridge body is effectively avoided, better integral stress is realized under the earthquake load, the displacement is limited, the structural integrity is increased, the earthquake load is resisted jointly, and the damping limiting and energy dissipation capacity is better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a bridge spacing control module expansion joint device according to an embodiment of the present application;
fig. 2 is a top view of the bridge spacing control module expansion joint device according to the embodiment of the present application;
fig. 3 is a partial cross-sectional side view of a bridge spacing control module expansion joint device according to an embodiment of the present disclosure;
fig. 4 is an internal structural schematic view of a supporting and limiting assembly of the bridge limiting control module expansion joint device according to the embodiment of the present application.
In the figure: 1-supporting and limiting assembly, 10-supporting box body, 11-movable connecting beam, 2-stay cable ring, 3-control plate, 4-transverse connecting beam, 50-upper pressing support, 51-sliding support, 52-lower pressing support and 6-supporting beam assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a spacing control modulus expansion joint device of bridge, and it can solve the modulus expansion joint device among the correlation technique and can not carry out the problem of multistage fortification to the earthquake.
Referring to fig. 1 and 2, the modular expansion joint device is used for being arranged between two longitudinal beam bodies of a bridge, and mainly comprises a plurality of supporting and limiting assemblies 1 arranged at intervals along the transverse direction of the bridge, the number of the supporting and limiting assemblies is generally related to the transverse width of the bridge, each supporting and limiting assembly 1 comprises two supporting box bodies 10, a first-stage limiting control assembly and a second-stage limiting control assembly, wherein a movable connecting beam 11 is arranged between the two supporting box bodies 10, one end of the movable connecting beam 11 is fixedly connected with one supporting box body 10, the other end of the movable connecting beam is at least partially overlapped with the other supporting box body 10, and the movable connecting beam can slide along with the longitudinal movement between the beam bodies, namely the length of an overlapped section can be changed in the process. The primary limit control assembly is arranged on the overlapped section of the movable connecting beam 11 and the supporting box body 10 and used for limiting the length of the overlapped section to be not less than a preset length, and the primary limit control assembly plays a role in achieving the purposes of longitudinal limit, seismic energy dissipation and collision prevention for medium and small earthquakes. Second grade limit control subassembly is located between two supporting box bodies 10 and one end links to each other with one of them supporting box body 10, second grade limit control subassembly and swing joint roof beam 11 slip subsides are established, it links to each other with the controller, general operating personnel controls second grade limit control subassembly through operation controller is long-range, or also can controller automatic control second grade limit control subassembly, when monitoring the earthquake or when being about to meet with extreme weather such as strong wind, issue the instruction through the controller end, control second grade limit control subassembly and swing joint roof beam 11 locking or release the locking, increase structural integrity, in order to resist earthquake load jointly, prevent that bridge itself from being damaged.
Further, one-level spacing control assembly includes the stay cable ring 2 that two at least intervals set up, and stay cable ring 2 is along the horizontal setting that is on a parallel with the bridge, and wears to locate on the coincidence section of swing joint roof beam 11 and supporting box 10, and the both ends of each stay cable ring 2 all partially stretch out the both sides of supporting box 10 at least. The number of the inhaul cable rings 2 is 2-19, the materials of the inhaul cable rings 2 are steel strands, steel wire bundles or carbon fibers, the number of the inhaul cable rings is determined according to the actual condition, when relative displacement occurs between the beam bodies, the relative longitudinal displacement of the bridge structure can be controlled by controlling the movable connecting beam 11 to move in the supporting box body 10, and meanwhile, the free distance of the inhaul cable rings 2 can be adjusted according to the design requirements of different bridge structures, so that the modulus expansion joint device is prevented from being damaged, the effective consumption of seismic energy is further achieved, and the problem that the front beam body and the rear beam body collide with each other is buffered. Wherein the value range of the preset length is 160-320 mm.
Further, referring to fig. 4, the secondary limit control assembly specifically includes a control board 3, the control board 3 is disposed at the bottom of the movable connecting beam 11, and one end of the control board is fixedly connected to one of the supporting boxes 10, the top surface of the control board 3 is slidably attached to the bottom of the movable connecting beam 11, and the control board 3 is configured to be connected to a controller and configured to be locked with or unlocked from the movable connecting beam 11 under the control of the controller. Specifically, a coil is arranged inside the control panel 3, the top surface of the control panel 3 is a magnetic conductive panel, and the coil is connected with the magnetic conductive panel to control the magnetic conductive panel to be locked or unlocked with the movable connection beam 11 under the control of the controller. Under superstrong pulse earthquake, strong wind load, by the controller of distal end for example internet high in the clouds earthquake early warning system directly or through the artificial relevant instruction of issuing of operating personnel, control panel 3 gets into operating condition, and the magnetic conduction panel locks with the bottom surface of swing joint roof beam 11 for increased structural integrity in the twinkling of an eye, the overall structure of protection bridge.
Further, all be equipped with the transverse connection roof beam 4 that many intervals set up between every two adjacent supporting spacing subassemblies 1, transverse connection roof beam 4 is along the horizontal setting that is on a parallel with the bridge, and both ends all stretch into in order to link to each other with the lateral wall of the swing joint roof beam 11 that corresponds at least partially. The adjacent movable connecting beams 11 are connected through the transverse connecting beam 4 to form a whole, so that the transverse integral rigidity can be effectively enhanced, the relative displacement of the adjacent beams in the transverse horizontal direction is limited, the tail-swaying phenomenon of the long-span bridge structure at the side-span beam end is avoided, and the stress performance under the action of transverse load is effectively improved.
Furthermore, the supporting box body 10 is fixedly connected with the movable connecting beam 11 and the control panel 3 through welding.
Further, as shown in fig. 3, an upper pressing support 50 and a sliding support 51 are arranged from top to bottom inside the overlapped section of the supporting box body 10 and the movable connecting beam 11; the module expansion joint device also comprises a supporting beam assembly 6, the supporting beam assembly 6 is arranged on the plurality of supporting limit assemblies 1 along the transverse direction parallel to the bridge and is connected with the corresponding movable connecting beams 11 positioned below the supporting beam assembly, and the supporting beam assembly 6 is positioned in a gap between two beam bodies and mainly plays a role similar to a bridge deck. Wherein, the top surface and the bottom surface of the corresponding part of the movable connecting beam 11 connected with the supporting beam assembly 6 are respectively provided with a sliding support 51 and a lower pressing support 52.
The modulus expansion joint device can be normally used, has better shock absorption limiting and damping energy consumption capabilities during earthquakes, adopts different reaction mechanisms corresponding to earthquakes of different levels, and controls the relative longitudinal displacement of a bridge structure through the guyed ring 2 during middle and small earthquakes, so that the seismic energy can be effectively consumed, the mutual collision of the front and rear beam bodies can be buffered, and the modulus expansion joint device is prevented from being damaged; when meetting strong earthquake or extreme weather, can make corresponding reaction in advance, in time the girder body of automatic locking both sides through control panel 3's active control, the structural integrity of increase bridge guarantees that the bridge is damaged under extreme weather or rare shake, and after the instruction of giving the outage at the controller, the coil finishes work, and control panel 3 removes the locking, but the girder body resumes vertical free slip's state. In addition, the inhaul cable ring 2 and the control panel 3 hardly bear harmful load when not in work, and the service life can be obviously prolonged.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a spacing control modulus expansion joint device of bridge, its includes a plurality of supporting spacing subassemblies (1) that set up along the bridge transverse spacing, its characterized in that, each supporting spacing subassembly (1) all includes:
the supporting box comprises two supporting box bodies (10), wherein a movable connecting beam (11) is arranged between the two supporting box bodies (10), one end of the movable connecting beam (11) is fixedly connected with one of the supporting box bodies (10), and the other end of the movable connecting beam is at least partially overlapped with the other supporting box body (10);
the primary limit control assembly is arranged on the overlapped section of the movable connecting beam (11) and the supporting box body (10) and is used for limiting the length of the overlapped section to be not less than the preset length;
and the second-stage limiting control assembly is arranged between the two supporting box bodies (10), one end of the second-stage limiting control assembly is connected with one of the supporting box bodies (10), and the second-stage limiting control assembly is attached to the movable connecting beam (11) in a sliding manner and is used for being locked or unlocked with the movable connecting beam (11) under the control of the controller.
2. The bridge spacing control module expansion joint device of claim 1, wherein: one-level spacing control assembly includes the cable ring (2) that two at least intervals set up, cable ring (2) along being on a parallel with the horizontal setting of bridge, and wear to locate on the coincidence section of swing joint roof beam (11) and supporting box (10), each the both ends of cable ring (2) all partially stretch out at least the both sides of supporting box (10).
3. The bridge spacing control module expansion joint device of claim 2, wherein: the number of the inhaul cable rings (2) is 2-19, and the inhaul cable rings (2) are made of steel strands, steel wire bundles or carbon fibers.
4. The bridge spacing control module expansion joint device of claim 1, wherein: the value range of the preset length is 160-320 mm.
5. The bridge spacing control module expansion joint device of claim 1, wherein: the second-level limiting control assembly comprises a control plate (3), the control plate (3) is arranged at the bottom of the movable connecting beam (11), one end of the control plate is fixedly connected with one of the movable connecting beam and the supporting box body (10), the top surface of the control plate (3) is slidably attached to the bottom of the movable connecting beam (11), and the control plate (3) is used for being connected with the controller and is used for being locked or unlocked by the movable connecting beam (11) under the control of the controller.
6. The bridge spacing control module expansion joint device of claim 5, wherein: the coil is arranged inside the control panel (3), the top surface of the control panel (3) is a magnetic conduction panel, and the coil is connected with the magnetic conduction panel and used for controlling the magnetic conduction panel to be locked or unlocked with the movable connecting beam (11) under the control of the controller.
7. The bridge spacing control module expansion joint device of claim 1, wherein: all be equipped with many transverse connection roof beams (4) that the interval set up between per two adjacent supporting spacing subassemblies (1), transverse connection roof beam (4) are along being on a parallel with the horizontal setting of bridge, and both ends all at least partially stretch into with corresponding the lateral wall of swing joint roof beam (11) links to each other.
8. The bridge spacing control module expansion joint device of claim 5, wherein: the supporting box body (10) is fixedly connected with the movable connecting beam (11) and the control panel (3) through welding.
9. The bridge spacing control module expansion joint device of claim 1, wherein: an upper pressing support (50) and a sliding support (51) are arranged in the overlapped section of the support box body (10) and the movable connecting beam (11) from top to bottom.
10. The bridge spacing control module expansion joint assembly of claim 9, wherein: still including supporting beam assembly (6), supporting beam assembly (6) are along being on a parallel with transversely locating a plurality ofly of bridge on supporting spacing subassembly (1), and with be located its below corresponding swing joint roof beam (11) homogeneous phase links to each other, be equipped with from last to bottom between supporting beam assembly (6) and the swing joint roof beam (11) sliding support (51) and bearing (52) of bearing down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110151711.9A CN112942088A (en) | 2021-02-03 | 2021-02-03 | Bridge limit control modulus expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110151711.9A CN112942088A (en) | 2021-02-03 | 2021-02-03 | Bridge limit control modulus expansion joint device |
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| CN112942088A true CN112942088A (en) | 2021-06-11 |
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| CN202110151711.9A Pending CN112942088A (en) | 2021-02-03 | 2021-02-03 | Bridge limit control modulus expansion joint device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887308A (en) * | 1997-07-28 | 1999-03-30 | Watson Bowman Acme Corp. | Expansion joint system with seismic accommodation |
| CN203440748U (en) * | 2013-09-03 | 2014-02-19 | 衡水中交信德工程橡塑有限公司 | Magnetic vibration-reducing bridge telescopic device |
| CN203834347U (en) * | 2014-04-17 | 2014-09-17 | 同济大学 | Anti-seismic limit bridge cable modular type expansion joint device |
| CN204780574U (en) * | 2015-06-05 | 2015-11-18 | 衡水橡胶股份有限公司 | Luo liang expansion joint device is prevented to modulus formula |
| CN106567325A (en) * | 2016-11-14 | 2017-04-19 | 西南交通大学 | Combined type anti-falling beam and collision device |
| CN211256645U (en) * | 2019-07-31 | 2020-08-14 | 同济大学 | Tensile anti-collision type anti-seismic expansion joint |
-
2021
- 2021-02-03 CN CN202110151711.9A patent/CN112942088A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887308A (en) * | 1997-07-28 | 1999-03-30 | Watson Bowman Acme Corp. | Expansion joint system with seismic accommodation |
| CN203440748U (en) * | 2013-09-03 | 2014-02-19 | 衡水中交信德工程橡塑有限公司 | Magnetic vibration-reducing bridge telescopic device |
| CN203834347U (en) * | 2014-04-17 | 2014-09-17 | 同济大学 | Anti-seismic limit bridge cable modular type expansion joint device |
| CN204780574U (en) * | 2015-06-05 | 2015-11-18 | 衡水橡胶股份有限公司 | Luo liang expansion joint device is prevented to modulus formula |
| CN106567325A (en) * | 2016-11-14 | 2017-04-19 | 西南交通大学 | Combined type anti-falling beam and collision device |
| CN211256645U (en) * | 2019-07-31 | 2020-08-14 | 同济大学 | Tensile anti-collision type anti-seismic expansion joint |
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Effective date of registration: 20230625 Address after: 430200 No.1 Wenhua Avenue, Jiangxia District, Wuhan City, Hubei Province Applicant after: Wuhan-Kowloon Railway Passenger Dedicated Line Hubei Co.,Ltd. Address before: No.8, boxue Road, Zhuankou, Wuhan Economic and Technological Development Zone, 430056, Hubei Province Applicant before: CHINA RAILWAY MAJOR BRIDGE RECONNAISSANCE & DESIGN INSTITUTE Co.,Ltd. |
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Application publication date: 20210611 |