CN212688868U - Small-span bridge and anti-collision device thereof - Google Patents
Small-span bridge and anti-collision device thereof Download PDFInfo
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- CN212688868U CN212688868U CN202021214643.3U CN202021214643U CN212688868U CN 212688868 U CN212688868 U CN 212688868U CN 202021214643 U CN202021214643 U CN 202021214643U CN 212688868 U CN212688868 U CN 212688868U
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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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Abstract
The utility model relates to an buffer stop of little span bridge, including the dissipation structure who is used for eliminating the impact, can transmit the surplus impact that dissipation structure transmitted to along the cross bridge to the biography can the structure of laying on a plurality of piers and establish the anticollision piece in one side that the pier stud meets boats and ships striking, anticollision piece is along following the bridge to extending, and dissipation structure passes through anticollision piece and biography can the structural connection. Still provide a little span bridge, include girder and along a plurality of piers of laying along the bridge direction, each pier includes along a plurality of piers of horizontal bridge direction laying, still includes foretell little span bridge's buffer stop, passes can structure and each pier contact. The utility model discloses an energy dissipation structure can eliminate partial impact, then the biography of rethread combination anticollision piece can be with a plurality of pier studs of partial impact transmission, lets a plurality of pier studs disperse like this and undertakes the impact, lets the impact can not be concentrated on a certain pier stud again, has ensured the anticollision effect, has guaranteed the safety of bridge and boats and ships.
Description
Technical Field
The utility model relates to a bridge engineering technical field specifically is a little span bridge and buffer stop thereof.
Background
With the rapid development of the transportation industry, the number of large bridges spanning through navigation rivers, harbor areas and straits built in China recently is gradually increased, the number of ships on a channel is also increased continuously, the ship shape tends to be large, the contradiction between the bridges and the passing ships is highlighted day by day, and the accidents of the ships impacting piers are also increased continuously. In order to protect the safety of the bridge pier and the ship, an anti-collision facility needs to be arranged on the bridge pier. The anti-collision facilities generally adopt a pile mode and an artificial island mode to prevent the impact force of the ship from being transmitted to the bridge piers; or the buffering energy dissipation device is arranged on the pier, so that the impact time of the ship is prolonged, and the impact force of the ship is reduced.
A large-span bridge has long bridge pier distance, and a set (or a group) of facilities are conventionally arranged on a single bridge pier to bear the ship collision force. Because the bridge structure is large in size, the single pier meets the stress requirement after energy dissipation through the anti-collision device.
With the development of society, railway connecting lines of large wharfs need to be built, generally, the projects are mostly on small-radius curves, the bridge span is not large, the structure size is small, and the risk of collision of ships sailing and berthing at the wharf bridge in the forward connection wharf is high. According to the conventional pier anti-collision arrangement method, the requirement that a single relatively weak pier bears the ship collision force cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a little bridge and buffer stop strides footpath bridge can solve little bridge, and a single pier that is relatively weak can't bear the difficult problem of ship colliding force.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the anti-collision device for the small-span bridge comprises an energy dissipation structure for eliminating impact force, an energy transmission structure capable of transmitting the residual impact force transmitted by the energy dissipation structure to a plurality of pier columns arranged along the transverse bridge direction, and an anti-collision piece arranged on one side of each pier column, which is in contact with the impact of a ship, wherein the anti-collision piece extends along the bridge direction, and the energy dissipation structure is connected with the energy transmission structure through the anti-collision piece.
Further, the energy dissipating structure comprises a first damping element contactable to the vessel, the first damping element being provided on the fender.
Furthermore, the first damping elements are multiple and are sequentially distributed on the anti-collision piece at intervals along the bridge direction.
Furthermore, the energy dissipation structure further comprises a roller assembly arranged on at least one first damping element, the roller assembly is arranged on one side of the first damping element, which is far away from the pier stud, and the rotating direction of the roller assembly is consistent with the direction along the bridge.
Furthermore, the energy transmission structure comprises a plurality of first truss connecting pieces capable of transmitting impact force to the pier stud, each first truss connecting piece is enclosed to form an energy transmission frame capable of being sleeved on the plurality of pier studs arranged along the transverse bridge direction, and the first truss connecting pieces of the energy transmission frame departing from the pier studs are connected with the anti-collision pieces.
Furthermore, the energy transfer structure further comprises a plurality of second damping elements which can contact the pier stud, wherein one of the second damping elements is arranged on one side, close to the pier stud, of the anti-collision piece, and the other second damping element is arranged on one side, close to the pier stud, of the first truss connecting piece.
Furthermore, pass and can structure still includes a plurality of second truss connection spare that are used for transmitting the impact, and two adjacent pass can the frame and connect through second truss connection spare.
Further, the anti-collision piece is a steel composite material anti-collision piece.
The embodiment of the utility model provides another kind of technical scheme: the utility model provides a little span bridge, includes the girder and follows a plurality of piers of laying along the bridge direction, each the pier includes along a plurality of piers of laying of horizontal bridge direction, still includes the buffer stop of foretell little span bridge, pass can the structure with each the pier stud contact.
Further, the anti-collision device is arranged between the highest water level line and the lowest water level line of the pier, and the energy transfer structure is movably arranged on the pier.
Compared with the prior art, the beneficial effects of the utility model are that: can eliminate partial impact through energy dissipation structure and anticollision piece, then the rethread composite member transmits remaining impact to a plurality of pier studs, lets a plurality of pier studs dispersion like this undertake the impact, lets the impact can not concentrate on a certain pier stud again, has ensured the anticollision effect, has guaranteed the safety of bridge and boats and ships.
Drawings
Fig. 1 is an elevation view of a small-span bridge according to an embodiment of the present invention;
fig. 2 is a plan view of a small-span bridge according to an embodiment of the present invention;
fig. 3 is an enlarged schematic view of an anti-collision device of a small-span bridge according to an embodiment of the present invention;
in the reference symbols: 1-a main beam; 2-bridge pier; 20-pier stud; 3-a crash-proof member; 4-an anti-collision device; 40-a first damping element; 41-a roller assembly; 50-a first truss attachment member; 51-a second damping element; 52-second truss attachment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an anti-collision device for a small-span bridge, including an energy dissipation structure for eliminating impact force, an energy transmission structure for transmitting the remaining impact force transmitted from the energy dissipation structure to a plurality of pillars 20 arranged along a transverse direction of the bridge, and an anti-collision member 3 disposed on one side of the pillars 20 facing the impact of the ship, wherein the anti-collision member 3 extends along a direction of the bridge, and the energy dissipation structure is connected with the energy transmission structure through the anti-collision member 3. In this embodiment, energy dissipation structure can eliminate the impact, as to what eliminate, just need see the impact of boats and ships, if the impact is not big, then energy dissipation structure and anticollision piece 3's cooperation can eliminate its the most, nevertheless if the impact still has some, can eliminate most impact by this energy dissipation structure and anticollision piece 3, then the rethread passes energy transfer structure with the impact transmission to a plurality of pier stud 20, let a plurality of pier stud 20 dispersion undertake the impact like this, let the impact can not concentrate on a certain pier stud 20 again, the anticollision effect has been ensured, the safety of bridge and boats and ships has been guaranteed. The small-span bridge has a plurality of pier studs 20 at every pier 2 department, can go to every pier stud 20 with the impact dispersion through passing the ability structure, and then plays the effect of protection pier stud 20. As for the length of the bumper 3, it may be set from head to tail in accordance with the length of the main beam 1.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 2 and fig. 3, the energy dissipation structure includes a first damping element 40 that can contact the ship, and the first damping element 40 is disposed on the bumper 3. In this embodiment, the damping element is used to contact the ship, so that a part of the impact force can be absorbed, and then a part of the impact force is absorbed by the bumper 3, so as to reduce the initial impact force. Preferably, there are a plurality of the first damping elements 40, and each of the first damping elements 40 is sequentially arranged on the bumper 3 at intervals along the bridge direction. The plurality of damping elements ensures that all piers 2 can have an energy absorbing effect.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 2 and fig. 3, the energy dissipation structure further includes a roller assembly 41 disposed on at least one of the first damping elements 40, the roller assembly 41 is installed on one side of the first damping element 40 departing from the pier stud 20, and a roller rotation direction of the roller assembly 41 is consistent with the forward direction of the bridge. In this embodiment, in addition to the first damping element 40, the roller assembly 41 is provided to oscillate the direction of the ship impact, so as to prolong the time of the ship impact and facilitate the energy absorption of the first damping element 40. Since the rolling direction of the rollers of the roller assemblies 41 coincides with the forward direction, the direction of impact can be shifted by the roller assemblies 41 regardless of the direction from which the ship collides. Preferably, each roller assembly 41 may include two rollers arranged side by side, or a greater number of rollers may be provided according to actual situations.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 2 and fig. 3, the energy transmission structure includes a plurality of first truss connecting members 50 capable of transmitting the impact force to the pier stud 20, each of the first truss connecting members 50 is enclosed to form an energy transmission frame capable of being sleeved on the plurality of pier studs 20 arranged along the transverse bridge direction, and the energy transmission frame deviates from the pier stud 20, the first truss connecting members 50 are connected with the anti-collision member 3. In this embodiment, the energy transfer structure includes an energy transfer frame, and the energy transfer frame is composed of a first truss connector 50 with good force transfer performance, and the frame-shaped structure can frame several pillars 20, and then transfer the impact force to several pillars 20 through its good force transfer performance, and the multiple pillars 20 are stressed together to achieve the purpose of dispersing impact.
In order to further optimize the above solution, referring to fig. 2 and fig. 3, the energy transmission structure further includes a plurality of second damping elements 51 capable of contacting the pier stud 20, wherein one of the second damping elements 51 is installed on one side of the bumper 3 close to the pier stud 20, and the other second damping element 51 is installed on one side of the first truss connecting member 50 close to the pier stud 20. In this embodiment, the impact force can be further absorbed by using the second damping element 51 to absorb energy again. Thus, in combination with the above-mentioned embodiment, after the ship is impacted, it will contact the roller assembly 41 first, and the impact direction of the ship is fluctuated by it, so as to prolong the impact time of the ship, then the energy is absorbed by the first damping element 40, then the energy is absorbed again by the bumper 3, and the rest energy is transmitted to the energy transmission frame, and the energy is transmitted to the second damping element 51 at the side of each pier stud 20 by the energy transmission frame, and the second damping element 51 can absorb the energy again, and finally the energy is transmitted to each pier stud 20. Preferably, each said abutment 20 contacts at least two said second damping elements 51. The whole process of energy absorption, energy transmission and energy absorption again is carried out, the energy transmitted to the pier studs 20 is weakened, and the plurality of pier studs 20 disperse the energy and are stressed together, so that the safety of the bridge and the ship is ensured.
In order to further optimize the above scheme, referring to fig. 1, fig. 2 and fig. 3, the energy transmission structure further includes a plurality of second truss connection members 52 for transmitting the impact force, and two adjacent energy transmission frames are connected by the second truss connection members 52. In this embodiment, the anti-collision devices of the adjacent piers 2 can be connected in series through the second truss connecting members 52, so that the anti-collision structure of the whole bridge can act together, and the safety of the whole bridge is further ensured.
As the embodiment of the utility model provides an optimization scheme, anticollision piece 3 is steel combined material anticollision piece 3. The anti-collision piece 3 is made of steel composite materials which are existing materials, high in strength and good in energy absorption, and is suitable for serving as the anti-collision piece 3 meeting collision.
Please examine fig. 1, fig. 2 and fig. 3, the embodiment of the present invention provides a small span bridge, including a girder 1 and a plurality of piers 2 arranged along the bridge direction, each pier 2 includes a plurality of piers 20 arranged along the cross bridge direction, in addition, the present invention further includes the anti-collision device of the small span bridge, the energy transmission structure is in contact with each pier 20. In this embodiment, adopt foretell buffer stop, can eliminate partial impact through dissipation structure and anticollision piece 3, then pass through again can with remaining impact transfer a plurality of pier stud 20, let a plurality of pier stud 20 disperse to undertake the impact like this, let the impact no longer concentrate on a certain pier stud 20, ensured the anticollision effect, guaranteed the safety of bridge and boats and ships.
As the utility model discloses the optimization scheme, buffer stop establishes between pier 2's the highest water level line and the lowest water level line, just pass can the structure activity set up in on the pier 2. In the present embodiment, specifically, the energy transfer structure may freely float up and down according to a water level between the highest water level line and the lowest water level line of the pier 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an anti-collision device of small-span bridge which characterized in that: the energy dissipation structure comprises an energy dissipation structure for eliminating impact force, an energy transmission structure capable of transmitting the residual impact force transmitted by the energy dissipation structure to a plurality of pier columns distributed along the transverse bridge direction, and an anti-collision piece arranged on one side of each pier column, which is in contact with the impact of a ship, wherein the anti-collision piece extends along the bridge direction, and the energy dissipation structure is connected with the energy transmission structure through the anti-collision piece.
2. The anti-collision device for the small-span bridge of claim 1, wherein: the dissipater comprises a first damping element contactable to the vessel, the first damping element being provided on the fender.
3. The anti-collision device for the small-span bridge of claim 2, wherein: the first damping elements are arranged in a plurality of numbers, and the first damping elements are sequentially distributed on the anti-collision piece at intervals along the bridge direction.
4. The anti-collision device for the small-span bridge of claim 2, wherein: the energy dissipation structure further comprises a roller assembly arranged on at least one first damping element, the roller assembly is arranged on one side, away from the pier column, of the first damping element, and the rotating direction of the roller assembly is consistent with the direction along the bridge.
5. The anti-collision device for the small-span bridge of claim 1, wherein: the energy transmission structure comprises a plurality of first truss connecting pieces capable of transmitting impact force to the pier studs, each first truss connecting piece is enclosed to form an energy transmission frame capable of being sleeved on the plurality of pier studs arranged along the transverse bridge direction, and the first truss connecting pieces of the energy transmission frame, which are deviated from the pier studs, are connected with the anti-collision pieces.
6. An anti-collision device for a small-span bridge according to claim 5, wherein: the energy transfer structure further comprises a plurality of second damping elements capable of contacting the pier stud, wherein one of the second damping elements is arranged on one side, close to the pier stud, of the anti-collision piece, and the other second damping element is arranged on one side, close to the pier stud, of the first truss connecting piece.
7. An anti-collision device for a small-span bridge according to claim 5, wherein: the energy transfer structure further comprises a plurality of second truss connecting pieces for transferring impact force, and two adjacent energy transfer frames are connected through the second truss connecting pieces.
8. The anti-collision device for the small-span bridge of claim 1, wherein: the anti-collision piece is made of a steel composite material.
9. The utility model provides a small span bridge, includes the girder and follows a plurality of piers of laying along the bridge, each the pier includes along a plurality of piers posts of laying of horizontal bridge, its characterized in that: further comprising an anti-collision device for a small span bridge according to any one of claims 1 to 8, wherein the energy transmission structure is in contact with each pier.
10. The small span bridge of claim 9, wherein: the anti-collision device is arranged between the highest water level line and the lowest water level line of the pier, and the energy transfer structure is movably arranged on the pier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021214643.3U CN212688868U (en) | 2020-06-28 | 2020-06-28 | Small-span bridge and anti-collision device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021214643.3U CN212688868U (en) | 2020-06-28 | 2020-06-28 | Small-span bridge and anti-collision device thereof |
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| CN212688868U true CN212688868U (en) | 2021-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778931A (en) * | 2020-06-28 | 2020-10-16 | 中铁武汉勘察设计研究院有限公司 | Small-span bridge and anti-collision device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778931A (en) * | 2020-06-28 | 2020-10-16 | 中铁武汉勘察设计研究院有限公司 | Small-span bridge and anti-collision device thereof |
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