CN210684530U - Bridge anti-ship collision height limiting frame - Google Patents
Bridge anti-ship collision height limiting frame Download PDFInfo
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- CN210684530U CN210684530U CN201921466136.6U CN201921466136U CN210684530U CN 210684530 U CN210684530 U CN 210684530U CN 201921466136 U CN201921466136 U CN 201921466136U CN 210684530 U CN210684530 U CN 210684530U
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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 discloses a bridge prevents that ship hits limit for height frame sets up the one side that drives off the direction towards the ship at the crane span structure, include: the portal frame is arranged on the outer side of the bridge frame at intervals, the portal frame comprises a cross beam and stand columns connected to two ends of the cross beam, and the bottom ends of the two stand columns are respectively hinged to a bridge bearing platform; the elastic buffer piece is arranged between the portal frame and the bridge; the fixed pile is arranged outside the bridge bearing platform; and the tension damping rods are arranged on one side of the portal frame, which is back to the bridge, and are respectively arranged corresponding to each upright post, the tension damping rods can be stretched in a tension manner, one ends of the tension damping rods are hinged to the upper ends of the upright posts, and the other ends of the tension damping rods are hinged to the fixing posts. The bridge anti-ship collision height limiting frame can effectively protect the bridge frame safety and is convenient to install and maintain on a channel.
Description
Technical Field
The utility model relates to a bridge limit for height facility technical field, concretely relates to bridge prevents that ship hits limit for height frame.
Background
With the continuous development of bridge technology and transportation industry, bridges are erected above a plurality of channels, and when a ship passes through a bridge opening, the top of the ship is inevitably higher than the bridge opening due to uncertain factors such as tides and storms, so that the ship collides with the bridge frame.
However, the anti-collision protection of bridges in various countries is mostly concentrated on the aspects of pier anti-collision and fender technologies, the anti-collision protection of bridges is rarely related, some bridges protect the bridges, but basically use height limit measures of vehicles on land, and height limit devices such as vehicle height limit frames are arranged below the bridges, so that the bridge protection effect is not ideal. The reason is that the similar device which has better height-limiting anti-collision effect on the vehicle with smaller tonnage can not play a better role on the ship because the tonnage of the freight ship is generally larger; simultaneously, because the environment on water is more complicated than land, the adaptability of directly transplanting the land limit for height device is relatively poor, and installation and maintenance are also inconvenient, can't really accomplish to carry out effectual limit for height anticollision to the ship.
Therefore, it is necessary to design a height-limiting anti-collision device which is convenient to install and maintain on a channel and can effectively protect the bridge frame.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides an anticollision limit for height device suitable for crane span structure protection to effectual protection crane span structure safety, and be convenient for install and maintain on the channel.
In order to achieve the above technical effects, the utility model discloses a technical scheme is:
a bridge ship collision prevention height limiting frame is arranged on one side of a bridge frame facing a ship coming direction and comprises:
the portal frame is arranged on the outer side of the bridge frame at intervals, the portal frame comprises a cross beam and stand columns connected to two ends of the cross beam, and the bottom ends of the two stand columns are respectively hinged to a bridge bearing platform;
the elastic buffer piece is arranged between the portal frame and the bridge;
the fixed pile is arranged outside the bridge bearing platform; and
the tension damping rods are arranged on one side, back to the bridge, of the portal frame and correspond to the stand columns, each tension damping rod can stretch in a tension mode, one end of each tension damping rod is hinged to the upper end of each stand column, and the other end of each tension damping rod is hinged to the fixing pile.
Further, the tensioned damping rod comprises: the damping rod piece comprises a first pipe piece, a second pipe piece and a damping rod piece; one end of the first pipe fitting can be axially and slidably inserted into the pipe cavity at one end of the second pipe fitting, the other end of the first pipe fitting is hinged with the upper end of the upright post of the portal frame, and the other end of the second pipe fitting is hinged with the upper end of the fixed pile; the damping rod piece is an alloy metal rod with the elongation rate larger than 13%, the damping rod piece is arranged in the pipe cavities of the first pipe fitting and the second pipe fitting, and two ends of the damping rod piece are fixedly connected with the hinged ends of the first pipe fitting and the second pipe fitting respectively.
Further, the portal frame further comprises: the supporting beam is respectively provided with one corresponding to two corners of the portal frame, and two ends of each supporting beam are respectively fixedly connected with the cross beam and the stand column outside the corresponding corner to form a triangular frame structure.
Furthermore, the cross beam, the upright post and the support beam are all hollow steel box girders.
Furthermore, the inner wall of the steel box girder is provided with a plurality of reinforcing rib plates which extend along the length direction of the steel box girder, and the plurality of reinforcing rib plates are arranged in the circumferential direction of the steel box girder.
Furthermore, concrete is filled in the steel box girders of the portal frame except the triangular frame structure.
Further, the elastic buffer is arranged on one side of the triangular frame structure facing the bridge.
Further, the elastic buffer members are arranged on the triangular frame structure at intervals.
Furthermore, one end of the elastic buffer piece is fixedly connected with the triangular frame structure, and the other end of the elastic buffer piece extends towards the bridge frame and is not connected with the bridge frame.
Further, the elastic buffer is an annular spring.
The beneficial effects of the utility model are that:
1. according to the bridge anti-ship collision height limiting frame, the height of a ship entering a bridge opening of a bridge frame is limited and measured through a portal frame, the rear side of the portal frame is in contact with the side face of the bridge frame through an elastic buffer piece, and the front side of the portal frame is connected and supported through a tension damping rod to form a stable triangular supporting structure; the method fully considers the environment of a channel water area, and provides a stable and convenient-to-operate environment foundation for the installation of the bridge ship collision prevention height frame by utilizing the existing bridge bearing platform and a small number of pre-embedded support columns, so that the bridge ship collision prevention height frame is convenient to install and maintain on the channel;
2. when the height of the ship exceeds the cross beam of the portal frame, the upper part of the ship firstly impacts the cross beam of the portal frame, on one hand, the portal frame is stressed to rotate towards the front bridge frame under the impact action, so that the tension damping rod is subjected to tension, the tension damping rod extends due to high ductility of the tension damping rod, and provides large tension damping during extension to absorb energy generated by impact; on the other hand, the portal frame which is displaced due to the impact is in soft contact with the bridge frame through the elastic buffer part, and the energy is absorbed through the large deformation of the elastic buffer part; two-stage protection and dual energy absorption greatly improve the anti-collision protection capability of the height limiting frame and effectively protect the safety of the bridge frame.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a bridge anti-ship collision height limiting frame according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rear view structure of the bridge anti-collision height limiting frame according to the embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along section A-A in FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along section B-B of FIG. 2;
FIG. 5 is a schematic cross-sectional view of the cross-section C-C and D-D in FIG. 2;
FIG. 6 is a schematic cross-sectional view taken along section E-E in FIG. 2;
reference numerals: 1-bridge ship collision prevention height limiting frame, 11-portal frame, 111-cross beam, 112-upright post, 113-supporting beam, 114-triangular frame structure, 115-upper ear plate, 11 a-steel box beam, 11 b-reinforcing rib plate, 11 c-concrete, 12-elastic buffer piece, 13-tension damping rod, 141-rod hinged support and 31-door frame hinged support.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the bridge ship collision prevention height limiting frame 1 provided by this embodiment is disposed on one side of the bridge frame facing the ship coming direction, so as to detect the height of the coming ship, and the ship which is not too high safely passes through the bridge ship collision prevention height limiting frame 1, and the bridge frame is protected from collision.
As shown in fig. 1, a bridge ship collision prevention elevated frame 1 includes: a portal frame 11, an elastic buffer 12, a tension damping bar 13 and a spud.
The portal frame 11 and the bridge are arranged outside the bridge at intervals and used as a height limit measuring device, and meanwhile, the portal frame is used as a peripheral contact part far away from the bridge when a ship collides, so that the bridge is protected against collision. Referring to fig. 1 and 2, the portal frame 11 mainly includes a cross beam 111 and upright posts 112 connected to two ends of the cross beam 111, bottom ends of the two upright posts 112 are respectively hinged to a bridge bearing platform, specifically, a door frame hinge support 31 may be disposed on the bridge bearing platform outside the bridge, and a lug plate is disposed at the bottom end of the upright post 112, so that the lug plate is connected to the door frame hinge support 31 through a pin shaft to form a hinge connection.
Referring to fig. 1 and 2, in order to reinforce the strength of the portal frame 11, a support beam 113 is further provided for the portal frame 11 in the present embodiment. Specifically, the supporting beams 113 are respectively disposed at two corners of the portal frame 11, and two ends of each supporting beam 113 are respectively and fixedly connected to the cross beam 111 and the upright 112 outside the corresponding corner to form a triangular frame structure 114.
As shown in fig. 4 and 5, in actual manufacturing, the cross beam 111, the upright column 112 and the support beam 113 are preferably configured as hollow steel box beams 11a to facilitate assembly and welding of steel plates made of Q235 and the like to form structural members, and the structural members have sufficient strength, are not too high in quality, and facilitate transportation and construction. In this embodiment, a reinforcing rib plate 11b is provided on the inner wall of the steel box girder 11a, the reinforcing rib plate 11b extends in the length direction of the steel box girder 11a, and a plurality of reinforcing rib plates are provided in the circumferential direction of the steel box girder 11a to increase the strength of the steel box girder 11 a.
Of course, considering that the structural strength of the portal frame 11 except the triangular frame structures 114 may not be sufficient, especially the cross beam 111 between the triangular frame structures 114 on both sides is the most important impact part, as shown in fig. 3 and 6, this embodiment further fills the steel box girder 11a of the portal frame 11 except the triangular frame structures 114 with concrete 11C, and specifically, concrete with the reference number C30 may be poured around the inner wall of the steel box girder 11 a.
As shown in fig. 1 and 2, an elastic buffer 12 is disposed between the portal frame 11 and the bridge to absorb energy when the portal frame 11 is impacted to move toward the bridge. Specifically, the elastic buffer 12 is disposed on a side of the triangular frame structure 114 facing the bridge, and a plurality of elastic buffers 12 are disposed on the triangular frame structure 114 at intervals to uniformly bear force and have stronger buffering and energy absorbing capabilities. In this embodiment, the elastic buffer 12 is preferably a ring spring, one end of which is fixedly connected to the triangular frame structure 114, and the other end of which extends toward the bridge and is not connected to the bridge; therefore, the contact between the annular spring (the elastic buffer 12) and the bridge is divided into two stages, namely, the portal frame 11 moves towards the bridge, the end part of the annular spring approaches towards the bridge until the annular spring is contacted with the side surface of the bridge, and then the annular spring is subjected to a compression energy absorption deformation process to buffer and absorb energy, so that the portal frame 11 can absorb the energy to the maximum extent in a short displacement process.
The tension damping rod 13 is arranged on one side of the portal frame 11, which is back to the bridge, so that the portal frame 11 deforms in tension and absorbs energy when being impacted, and the impact resistance of the portal frame 11 is improved. Referring to fig. 1, the damping pole 13 that is drawn corresponds every stand 112 and respectively sets up one, and the damping pole 13 that is drawn can be drawn the extension, and the one end of drawing damping pole 13 articulates in the upper end of stand 112, and the other end of drawing damping pole 13 articulates on the spud pile, and the spud pile is for pouring the concrete pile standing in the outer water field of bridge cushion cap in advance, certainly, if the length that the bridge cushion cap stretches out the crane span structure side is enough, and the lower extreme direct hinge that will draw damping pole 13 is fixed the bridge cushion cap in the portal frame 11 outside also can, and it is more convenient to install.
The tension damping bar 13 in this embodiment comprises: the damping rod piece comprises a first pipe piece, a second pipe piece and a damping rod piece; one end of the first pipe fitting can be axially inserted into a pipe cavity at one end of the second pipe fitting in a sliding manner, the other end of the first pipe fitting is hinged with the upper end of a vertical column 112 of the portal frame 11, specifically, the other end of the first pipe fitting can be plugged and provided with a first lug plate, an upper lug plate 115 is arranged on the outer side of the upper end of the vertical column 112, and the first lug plate is connected with the upper lug plate 115 through a pin shaft; the other end of the second pipe fitting is hinged to the upper end of the fixing pile, the end of the second pipe fitting can be plugged and provided with a second lug plate, the upper end of the fixing pile is provided with a rod hinged support 141, and the second lug plate is connected with the rod hinged support 141 through a pin shaft. This embodiment sets up the stopper in the lumen of second pipe fitting, and the stopper is close to the tip setting of the second pipe fitting of inserting of first pipe fitting to the end that inserts of supporting first pipe fitting limits the relative indentation displacement ability of first pipe fitting and second pipe fitting, has sufficient support intensity when making the damping bracing piece that pulls to use as simple support piece, and can not cause the extrusion to the damping member of inside, guarantees that the damping member is in the preferred state, so that the more abundant embodiment when pulling is pulled the damping.
The damping rod piece is an alloy metal rod with the elongation rate larger than 13%, the damping rod piece is arranged in the pipe cavities of the first pipe fitting and the second pipe fitting, and two ends of the damping rod piece are fixedly connected with the hinged ends of the first pipe fitting and the second pipe fitting respectively, so that when the tensile damping rod 13 is stretched, the damping rod piece can provide large deformation capacity for the damping rod piece through the high ductility of the alloy metal, and can absorb a large amount of energy when deforming, so that the whole tensile damping support rod has enough tensile damping, and more reliable anti-collision protection capacity is provided.
Specific selection of alloy metal can be made of a magnesium alloy (specific components and properties can be found in published patent documents) disclosed in chinese utility model patent application No. CN200580021762.9, which has high strength and high ductility with a yield stress of 380MPa and a tensile elongation of 14%, and fully satisfies the requirements of this example. The aluminum alloy disclosed in the Chinese utility model with the application number of CN201510792711.1 and having high strength and ductility (the specific components and properties can be found in published patent documents) can also be used, the yield strength is 285-375 MPa, the elongation is 15.8-18.8%, and the aluminum alloy also has high tensile strength and yield strength and meets the use requirements of the embodiment. Of course, other high ductility alloy materials used in the industry are possible, as long as the basic strength requirements and the large elongation required in the present embodiment are theoretically met.
According to the bridge anti-ship collision height limiting frame 1, the height of a ship entering a bridge opening of a bridge is limited and measured through a portal frame 11, the rear side of the portal frame 11 is in contact with the side face of the bridge through an elastic buffer part 12, and the front side of the portal frame 11 is connected and supported through a tension damping rod 13 to form a stable triangular supporting structure; the environment of the channel water area is fully considered, the existing bridge bearing platform and a small number of pre-buried support columns are utilized, a stable and convenient-to-operate environment foundation is provided for installation of the bridge anti-ship collision limit elevated 1, and installation and maintenance of the bridge anti-ship collision limit elevated 1 on the channel are facilitated. When the height of the ship exceeds the cross beam 111 of the portal frame 11, the upper part of the ship firstly impacts the cross beam 111 of the portal frame 11, on one hand, the portal frame 11 is stressed to rotate towards the front bridge frame, so that the tensile damping rod 13 is stressed by tension, the tensile damping rod 13 is elongated due to high ductility, and greater tensile damping is provided when the tensile damping rod 13 is elongated, and the energy generated by the impact is absorbed; on the other hand, the portal frame 11 which is displaced due to the impact is in soft contact with the bridge frame through the elastic buffer 12, and meanwhile, the energy absorption is buffered through the large deformation of the elastic buffer 12; two-stage protection and dual energy absorption greatly improve the anti-collision protection capability of the height limiting frame and effectively protect the safety of the bridge frame.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. The utility model provides a bridge prevents that ship hits limit for height frame, sets up the one side that drives the direction towards the ship at the crane span structure, its characterized in that includes:
the portal frame is arranged on the outer side of the bridge frame at intervals, the portal frame comprises a cross beam and stand columns connected to two ends of the cross beam, and the bottom ends of the two stand columns are respectively hinged to a bridge bearing platform;
the elastic buffer piece is arranged between the portal frame and the bridge;
the fixed pile is arranged outside the bridge bearing platform; and
the tension damping rods are arranged on one side, back to the bridge, of the portal frame and correspond to the stand columns, each tension damping rod can stretch in a tension mode, one end of each tension damping rod is hinged to the upper end of each stand column, and the other end of each tension damping rod is hinged to the fixing pile.
2. The bridge anti-boat bump limit elevated of claim 1,
the tensioned damping bar comprising: the damping rod piece comprises a first pipe piece, a second pipe piece and a damping rod piece; one end of the first pipe fitting can be axially and slidably inserted into the pipe cavity at one end of the second pipe fitting, the other end of the first pipe fitting is hinged with the upper end of the upright post of the portal frame, and the other end of the second pipe fitting is hinged with the upper end of the fixed pile; the damping rod piece is an alloy metal rod with the elongation rate larger than 15%, the damping rod piece is arranged in the pipe cavities of the first pipe fitting and the second pipe fitting, and two ends of the damping rod piece are fixedly connected with the hinged ends of the first pipe fitting and the second pipe fitting respectively.
3. The bridge anti-boat bump limit elevated of claim 1,
the portal frame further comprises: the supporting beam is respectively provided with one corresponding to two corners of the portal frame, and two ends of each supporting beam are respectively fixedly connected with the cross beam and the stand column outside the corresponding corner to form a triangular frame structure.
4. The bridge anti-boat bump limit elevated of claim 3,
the cross beam, the upright post and the supporting beam are all hollow steel box girders.
5. The bridge anti-boat bump limit elevated of claim 4,
the inner wall of the steel box girder is provided with a plurality of reinforcing rib plates which extend along the length direction of the steel box girder and are arranged in the circumferential direction of the steel box girder.
6. The bridge anti-boat bump limit elevated of claim 5,
concrete is filled in the steel box girders of the portal frame except the triangular frame structure.
7. The bridge anti-boat bump limit elevated of claim 3,
the elastic buffer piece is arranged on one surface of the triangular frame structure facing the bridge.
8. The bridge anti-boat bump limit elevated of claim 7,
the elastic buffer parts are arranged on the triangular frame structure at intervals.
9. The bridge anti-boat bump limit elevated of claim 8,
one end of the elastic buffer piece is fixedly connected with the triangular frame structure, and the other end of the elastic buffer piece extends towards the bridge and is not connected with the bridge.
10. The bridge boat bump limiting overhead of claim 1, 7, 8 or 9,
the elastic buffer is an annular spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921466136.6U CN210684530U (en) | 2019-09-05 | 2019-09-05 | Bridge anti-ship collision height limiting frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921466136.6U CN210684530U (en) | 2019-09-05 | 2019-09-05 | Bridge anti-ship collision height limiting frame |
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| CN210684530U true CN210684530U (en) | 2020-06-05 |
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| CN201921466136.6U Active CN210684530U (en) | 2019-09-05 | 2019-09-05 | Bridge anti-ship collision height limiting frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528421A (en) * | 2019-09-05 | 2019-12-03 | 招商局重庆交通科研设计院有限公司 | The anti-ship of bridge hits height-limiting frame |
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2019
- 2019-09-05 CN CN201921466136.6U patent/CN210684530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528421A (en) * | 2019-09-05 | 2019-12-03 | 招商局重庆交通科研设计院有限公司 | The anti-ship of bridge hits height-limiting frame |
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