CN113737731B

CN113737731B - Pier steel pouring jacket anticollision structure

Info

Publication number: CN113737731B
Application number: CN202111171333.7A
Authority: CN
Inventors: 施永灿; 于宏明; 李提军; 郭泽棉; 张锡祥; 于宏亮; 罗文乐; 何裕霖; 刘清山; 蒋勇; 刘事莲
Original assignee: Chongqing Jiaotong University Engineering Design And Research Institute Co ltd; Chongqing Kai Road And Bridge Composite Technology Co ltd; Guangzhou Beihuan Intelligent Transportation Technology Co ltd
Current assignee: Chongqing Jiaotong University Engineering Design And Research Institute Co ltd; Chongqing Kai Road And Bridge Composite Technology Co ltd; Guangzhou Beihuan Intelligent Transportation Technology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-10-28
Anticipated expiration: 2041-10-08
Also published as: CN113737731A

Abstract

The invention discloses a pier steel sleeve box anti-collision structure which comprises a cylindrical anti-collision steel sleeve box arranged on a pier, wherein at least two pier studs are arranged on the pier, each pier stud is sleeved with the anti-collision steel sleeve box, the outer walls of two adjacent anti-collision steel sleeve boxes are connected in a tangent mode, each anti-collision steel sleeve box comprises an inner steel enclosing plate and an outer steel enclosing plate, a plurality of FRP (fiber reinforce plastic) roller structures which are distributed along the peripheral surfaces of the pier studs in an annular arrangement mode are arranged between the inner steel enclosing plates and the pier studs, and the outer steel enclosing plates are connected with the inner steel enclosing plates through a plurality of deformable energy dissipation elastic pieces. When the anti-collision steel sleeve box is impacted by a ship, the anti-collision steel sleeve box can utilize the deformation energy dissipation of a plurality of elastic parts and the buffering impact and rotation energy dissipation of the FRP roller structure, and has good flexible anti-collision performance, so that the safety of pier columns of a bridge in 0-degree normal collision and 30-degree oblique collision is ensured, the pier ship impact force is reduced by more than 50% to the maximum extent, and the damage caused by ship collision is reduced by more than 30% to the maximum extent. In addition, manufacturing and maintenance costs are low.

Description

Pier steel pouring jacket anticollision structure

Technical Field

The invention relates to the technical field of bridge collision avoidance, in particular to a pier steel sleeve box collision avoidance structure.

Background

At present, with the continuous acceleration of the construction speed of China and the vigorous development of the transportation industry, various bridges across rivers and sea are created. However, accidents in which the ship strikes the pier are also increased due to mishandling of the navigable ship, and the like. In order to protect the bridge and improve the anti-collision performance of the bridge pier, in the prior art, the pier columns of some bridges are additionally provided with anti-collision structures which are integrally made of Fiber Reinforced Plastic (FRP), the energy absorption and buffering are realized by utilizing the characteristics of the FRP, and the cost is high because the FRP is expensive and the anti-collision structures are integrally made of the FRP.

Disclosure of Invention

The invention aims to provide a pier steel sleeve box anti-collision structure with good anti-collision performance and low cost, and solves the problem that the pier anti-collision structure in the prior art is high in cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a pier steel jacket case anticollision structure, is including setting up the anticollision steel jacket case of the cylinder form on the pier, be equipped with two at least pier stud on the pier, every pier stud cover is equipped with one anticollision steel jacket case, the tangent connection of outer wall of two adjacent anticollision steel jacket cases, anticollision steel jacket case includes interior steel bounding wall and outer steel bounding wall, interior steel bounding wall with be equipped with a plurality of FRP cylinder structures of arranging the distribution along pier stud outer peripheral face annular between the pier stud, outer steel bounding wall with the elastic component that can disappear through a plurality of deformations between the interior steel bounding wall is connected.

Further, the FRP roller structure is a hollow cylindrical shell which is made of FRP materials in a molding mode and is provided with openings at two ends. Because FRP material is comparatively expensive, structural design like this can reduce cost, can have better energy dissipation anticollision effect again.

Further, the elastic component is the spring, the spring is for the direction of height multilayer distribution along crashproof steel pouring jacket, and the equidistant array distribution of axis along crashproof steel pouring jacket of every layer of spring. So, no matter how the striking angle of boats and ships is, the homoenergetic is enough to make crashproof steel jacket case have better energy dissipation anticollision effect.

Furthermore, the inner side wall of the outer steel enclosing plate and the outer side wall of the inner steel enclosing plate are both provided with cross rib plates which are distributed in an annular mode, and the cross rib plates are located between the outer steel enclosing plate and the inner steel enclosing plate. Like this, can give outer steel bounding wall and interior steel bounding wall better intensity, improve the whole crashproof ability of crashproof steel pouring jacket.

Furthermore, one end of each spring is fixedly connected with the transverse rib plate on the outer steel enclosing plate, and the other end of each spring is fixedly connected with the transverse rib plate on the inner steel enclosing plate. So, when boats and ships striking, the impact can be transmitted earlier to the rib by outer steel bounding wall on, and the retransmission carries out the energy dissipation buffering to the spring again, and during, partial impact can reduce because of the deformation of outer steel bounding wall and rib to play the effect that improves the anticollision.

Furthermore, the cross rib plates arranged on the outer steel enclosing plate and the cross rib plates arranged on the inner steel enclosing plate are symmetrically distributed along the height direction, and the rib widths of the cross rib plates positioned at the upper part and the cross rib plates positioned at the lower part are larger than the rib width of the cross rib plates positioned at the middle part. So, the length that is located the spring at middle part can be longer than the spring that is located upper portion or lower part to make the crashproof ability at the middle part of anticollision steel pouring jacket better, this possibility that also considers the outer wall middle part of boats and ships striking anticollision steel pouring jacket can be a little relatively, design like this just can exert the anticollision advantage of anticollision steel pouring jacket better.

Furthermore, one end of each spring is fixedly connected with the outer steel enclosing plate, and the other end of each spring is fixedly connected with the inner steel enclosing plate. So, when boats and ships striking, the impact can be carried out the energy dissipation buffering by outer steel bounding wall transmission to spring, and during, partial impact can reduce because of the deformation of outer steel bounding wall to play the effect that improves the anticollision.

Furthermore, the inside wall of outer steel bounding wall with the lateral wall of interior steel bounding wall all corresponds and is provided with one end and spring cup joint fixed connection's steel sleeve. So, the spring concreties on the steel sleeve, and the steel sleeve has certain length, can reduce the distortion degree when the spring warp, and when boats and ships striking, because the restriction of steel sleeve, the spring is difficult to take place the distortion at the in-process of compressed, ensures that the spring can maximize the deformation energy dissipation.

Furthermore, the anticollision steel pouring jacket of two adjacent tangent connections all sets up buffer space in the one end that is close to each other, does not set up the spring in the buffer space. Because the tangent place is difficult to be strikeed by boats and ships, through setting up the buffering space that does not install the spring, can simplify overall structure and reduce manufacturing cost.

Further, the below of anticollision steel pouring jacket is equipped with the supporting bracket, the supporting bracket is including being used for the bracket steel bounding wall of being connected with the pier and along a plurality of backup pad of bracket steel bounding wall array distribution. So, the backup pad on the usable supporting bracket can support well and hold crashproof steel pouring jacket, and simultaneously, bracket steel bounding wall also can protect the pier.

Furthermore, an FRP corrugated plate is arranged between the inner wall of the bracket steel enclosing plate and the pier. Therefore, due to the arrangement of the FRP corrugated plate, when a ship collides, in the deformation process of the support bracket, the impact force is firstly transmitted to the bracket steel coaming through the support plate and then transmitted to the FEP corrugated plate for energy dissipation and buffering, so that the support bracket is endowed with good anti-collision performance, and the pier can be protected.

Furthermore, be equipped with movable cantilever pterygoid lamina in the backup pad, movable cantilever pterygoid lamina includes fly leaf and connecting piece, the fly leaf with backup pad sliding connection, the both ends of connecting piece are connected respectively the fly leaf with anticollision steel sleeve case. So, through having set up movable cantilever pterygoid lamina, when boats and ships striking anticollision steel pouring jacket, outer steel bounding wall can link the fly leaf and come and go round and go the round trip movement in the backup pad at deformation process to improve energy dissipation buffering crashproof ability.

Compared with the prior art, the invention provides a pier steel sleeve box anti-collision structure, which has the following beneficial effects:

according to the invention, the anti-collision steel sleeve box is sleeved on the pier stud and can be rotatably supported on the pier, when a ship is impacted, deformation energy dissipation and buffering impact and rotation energy unloading of an FRP roller structure can be carried out by using a plurality of springs, backward displacement of the movable cantilever wing plate on the supporting bracket can be used for not restricting the deformation of the anti-collision steel sleeve box, and upward displacement and overturning of the anti-collision steel sleeve box can be restricted by using the anchor tying connection effect of the connecting piece between the anti-collision steel sleeve box and the supporting bracket, so that the flexible anti-collision performance of the anti-collision steel sleeve box can be fully exerted, the safety of the pier stud of a bridge facing 0-degree positive collision and 30-degree oblique collision can be ensured, the pier and ship impact force can be maximally reduced by more than 50%, and the ship impact damage can be maximally reduced by more than 30%. In addition, compared with the prior art that the whole anti-collision structure is made of FRP materials, the anti-collision structure can greatly reduce the manufacturing and maintenance cost, and has better economic value and social benefit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;

FIG. 2 is a top view of example 1 of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an assembly view of an anti-collision steel jacket of embodiment 1 of the invention;

fig. 5 is a schematic perspective view of embodiment 2 of the present invention;

FIG. 6 is a schematic half-sectional view of example 2 of the present invention;

FIG. 7 is a schematic perspective view of embodiment 3 of the present invention;

FIG. 8 is a schematic perspective view of another embodiment 3 of the present invention;

FIG. 9 is a schematic half-sectional view of example 3 of the present invention;

FIG. 10 is a schematic perspective view of embodiment 4 of the present invention;

FIG. 11 is a schematic perspective view of another embodiment 4 of the present invention;

FIG. 12 is a top view of example 4 of the present invention;

FIG. 13 is a perspective view of a support bracket according to embodiment 4 of the present invention;

FIG. 14 is a top view of a support bracket of embodiment 4 of the invention;

FIG. 15 is a first perspective view of another embodiment of the present invention;

FIG. 16 is a perspective view of a support bracket of other embodiments of the present invention;

FIG. 17 is a top view of a support bracket of other embodiments of the present invention;

FIG. 18 is an assembled view of a movable cantilever wing according to another embodiment of the present invention;

FIG. 19 is a second perspective view of another embodiment of the present invention;

FIG. 20 is a third perspective view of another embodiment of the present invention;

FIG. 21 is a schematic, semi-sectional view of another embodiment of the present invention;

FIG. 22 is an enlarged view of detail B of FIG. 21;

fig. 23 is a perspective view of one of the unit boxes according to other embodiments of the present invention.

Reference numerals: 1. an anti-collision steel sleeve box; 11. an inner steel coaming; 12. an outer steel coaming; 13. a spring; 14. a cross rib plate; 15. a steel sleeve; 16. a buffer space; 17. a bolt and nut assembly; 2. an FRP roller structure; 3. a support bracket; 31. bracket steel coamings; 32. a support plate; 321. a horizontal guide groove; 322. a vertical guide groove; 33. FRP corrugated plates; 34. a movable cantilever wing plate; 341. a movable plate; 3411. a horizontal plate; 3412. a vertical plate; 342. a connecting member; 35. a connecting frame; 4. a bridge pier; 41. and (5) pier studs.

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 23, the invention provides a pier steel jacket box anti-collision structure, which comprises a cylindrical anti-collision steel jacket box 1 arranged on a pier 4, wherein at least two pier studs 41 are arranged on the pier 4, each pier stud 41 is sleeved with one anti-collision steel jacket box 1, the outer walls of two adjacent anti-collision steel jacket boxes 1 are tangentially connected, each anti-collision steel jacket box 1 comprises an inner steel enclosing plate 11 and an outer steel enclosing plate 12, a plurality of FRP roller structures 2 which are annularly distributed along the outer peripheral surface of each pier stud 41 are arranged between the inner steel enclosing plate 11 and the pier stud 41, and the outer steel enclosing plates 12 are connected with the inner steel enclosing plates 11 through a plurality of deformable energy dissipation elastic members.

So, through suit anticollision steel jacket case 1 on pier stud 41, anticollision steel jacket case 1 rotationally supports on pier 4, and when the ship striking, usable a plurality of elastic component warp the energy dissipation and FRP cylinder structure 2 cushions the striking and rotates and unload the ability to guarantee the pier stud 41 of bridge when facing 0 and just hitting and 30 oblique hits the security, enable pier ship collision force maximum reduction more than 50% and boats and ships damage maximum reduction more than 30%. In addition, compared with the prior art that the whole anti-collision structure is made of FRP materials, the anti-collision structure can greatly reduce the manufacturing and maintenance cost and has better economic value and social benefit.

The invention is described in further detail below by means of detailed embodiments and with reference to the attached drawings.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a steel jacket box anti-collision structure for a pier, which can be applied to a double-column pier for anti-collision protection, and includes a cylindrical anti-collision steel jacket box 1 disposed on the pier 4, two cylindrical pier studs 41 are disposed on the pier 4, a pier tie beam is connected between the two pier studs 41, each pier stud 41 is sleeved with one of the anti-collision steel jacket boxes 1, outer walls of the two anti-collision steel jacket boxes 1 are in tangential close contact but not fixedly connected, and after installation, the two anti-collision steel jacket boxes 1 are supported by the pier tie beam under the action of self weight. The anti-collision steel sleeve box 1 comprises a circular inner steel enclosing plate 11 and an outer steel enclosing plate 12, and the thicknesses of the inner steel enclosing plate 11 and the outer steel enclosing plate 12 are both 12mm. Twenty FRP roller structures 2 which are annularly arranged and distributed along the peripheral surface of the pier column 41 are movably placed between the inner steel enclosing plate 11 and the pier column 41. The outer steel enclosing plate 12 and the inner steel enclosing plate 11 are connected through a plurality of deformable energy-dissipating elastic pieces.

The outer steel enclosing plate 12 and the inner steel enclosing plate 11 are formed by connecting six circular arc-shaped steel plates through the bolt and nut assemblies 17, so that the whole anti-collision steel sleeve box 1 is divided into six unit boxes, and damaged parts can be conveniently mounted or dismounted and replaced.

The FRP roller structure 2 is a hollow cylindrical shell prepared by FRP material molding, the two ends of the hollow cylindrical shell are provided with openings, the diameter of the cylindrical shell is 250mm, the wall thickness of the cylindrical shell is 6mm, and the height of the cylindrical shell is as high as that of the anti-collision steel sleeve box. The FRP roller structures are closely contacted with each other and the anti-collision steel sleeve box and the pier stud but are not fixedly connected with each other. Because FRP material is comparatively expensive, structural design like this can reduce cost, can have better energy dissipation anticollision effect again.

The elastic component is spring 13, spring 13 is for the direction of height multilayer distribution along crashproof steel pouring jacket, and the equidistant array distribution of spring 13 along crashproof steel pouring jacket 1's axis on every layer. So, no matter how the striking angle of boats and ships is, the homoenergetic is enough to make crashproof steel jacket case have better energy dissipation anticollision effect. More specifically, the springs 13 are provided with six layers, the distance between every two layers of springs 13 is equal, and the diameter of each spring 13 is 50mm, and the diameter of each spiral is 320mm. One end of each spring 13 is fixedly connected with the outer steel enclosing plate 12, and the other end of each spring 13 is fixedly connected with the inner steel enclosing plate 11. So, when boats and ships striking, the impact can be transmitted to spring 13 by outer steel bounding wall 12 and carry out the energy dissipation buffering, at last again through interior steel bounding wall 11 transmission to FRP cylinder structure 2 energy dissipation, during, partial impact can reduce because of outer steel bounding wall 12's deformation to play the effect that improves the anticollision.

Example 2

Referring to fig. 5 and 6, in the present embodiment, an anti-collision structure for a pier steel sleeve box with another structure is provided, in addition to embodiment 1, the inner side wall of the outer steel surrounding plate 12 and the outer side wall of the inner steel surrounding plate 11 are both provided with cross rib plates 14 that are distributed annularly, and the cross rib plates 14 are located between the outer steel surrounding plate 12 and the inner steel surrounding plate 11. Like this, can give outer steel bounding wall 12 and interior steel bounding wall 11 better intensity, improve crashproof steel pouring jacket 1's whole crashproof ability.

More specifically, as shown in fig. 6, five cross ribs 14 are provided on the upper portion of the inner side wall of the outer steel surrounding plate 12, and five cross ribs 14 are correspondingly provided on the outer side wall of the inner steel surrounding plate 11. Different from the embodiment 1, the springs 13 are provided with seven layers, the distance between the springs 13 in each layer is 100mm, 420mm, 430mm, 410mm and 100mm from top to bottom, and the diameter of each spring 13 is 50mm and the diameter of each spiral is 320mm. The four layers of springs 13 located at the upper part are separated by cross ribs 14.

Example 3

Referring to fig. 7 to 9, the present embodiment provides another pier steel boxed crash-proof structure, which is different from embodiment 2 in that twelve transverse ribs 14 with a thickness of 10mm are disposed on an inner side wall of an outer steel surrounding plate 12, and twelve transverse ribs 14 with a thickness of 10mm are correspondingly disposed on an outer side wall of an inner steel surrounding plate 11. The springs 13 are provided with six layers, the distance between the springs 13 in each layer is 150mm, 300mm, 400mm, 500mm, 400mm, 300mm and 150mm from top to bottom in sequence, the diameter of each spring 13 is 35mm, and the diameter of each spiral thread is 300mm. One end of each spring 13 is fixedly connected with the two cross ribs 14 on the outer steel enclosing plate 12, and the other end of each spring 13 is fixedly connected with the two cross ribs 14 on the inner steel enclosing plate 11. So, when boats and ships striking, the impact can be transmitted earlier to horizontal rib plate 14 by outer steel bounding wall 12 on, and the biography is transmitted to spring 13 and is carried out the energy dissipation buffering, and during, partial impact can be reduced because of outer steel bounding wall 12 and horizontal rib plate 14's deformation to play the effect that improves the anticollision.

In some embodiments, as shown in fig. 9, the latitudinal ribs 14 provided on the outer steel surrounding plate 12 and the latitudinal ribs 14 provided on the inner steel surrounding plate 11 are symmetrically distributed in the height direction, and the rib width of each of the latitudinal ribs on the upper portion and the rib width of each of the latitudinal ribs on the lower portion are larger than the rib width of the latitudinal ribs on the middle portion. The rib width of the cross rib plate is 350mm, 300mm, 250mm, 200mm, 150mm and 100mm from top to middle. So, the length that is located the spring in middle part can be longer than the spring that is located upper portion or lower part to make the crashproof ability in the middle part of anticollision steel pouring jacket better, this possibility that also considers boats and ships striking anticollision steel pouring jacket's outer wall middle part can be relatively big, design just so can exert the crashproof advantage of anticollision steel pouring jacket better.

Furthermore, in some more specific embodiments, as shown in fig. 8, two tangentially connected crash steel boxes 1 are provided with a buffer space 16 at one end close to each other, and no spring 13 is arranged in the buffer space 16. The buffer space 16 occupies one sixth of the whole crash steel jacket 1. Because the tangent place is difficult to be strikeed by boats and ships, through setting up the buffering space that does not install the spring, can simplify overall structure and reduce manufacturing cost.

Example 4

Referring to fig. 10 to 14, the present embodiment provides another pier steel box-in-box collision avoidance structure, which is different from embodiment 3 in that fourteen 10 mm-thick transverse ribs 14 are disposed on an inner side wall of an outer steel surrounding plate 12, and fourteen 10 mm-thick transverse ribs 14 are correspondingly disposed on an outer side wall of an inner steel surrounding plate 11. The rib width of the rib plate is 500mm, 350mm, 300mm, 250mm, 200mm, 150mm, 100mm from top to bottom.

In addition, as shown in fig. 11, 13 and 14, as a modified embodiment, a support bracket 3 is arranged below the anti-collision steel pouring jacket 1, and the support bracket 3 comprises a C-shaped support steel coaming 31 for connecting with the pier 4 and a plurality of support plates 32 distributed along the outer wall array of the support steel coaming 31. The plurality of support plates 32 are distributed in an outward-projecting umbrella-shaped arrangement, and each support plate 32 is perpendicular to the horizontal plane. The two bracket steel enclosing plates 31 are correspondingly arranged at two ends of the pier 4 respectively, the two bracket steel enclosing plates 31 are fixedly connected through the connecting frame 35, the connecting frame 35 is sleeved on the outer surface of a bridge pier tie beam on the pier 4, and the cross section of the connecting frame 35 is rectangular. In this way, the support plate 32 on the support bracket 3 can support and support the anti-collision steel jacket box 1 well, and the bracket steel coaming 31 can protect the pier 4.

Example 5

Referring to fig. 15 to 18, in the present embodiment, an anti-collision structure of a pier steel pouring jacket with another structure is provided, and based on embodiment 4, an FRP corrugated plate 33 is disposed between an inner wall of the bracket steel enclosing plate 31 and the pier 4. Thus, due to the arrangement of the FRP corrugated plate 33, when a ship is impacted, in the deformation process of the support bracket 3, the impact force is firstly transmitted to the bracket steel coaming 31 through the support plate 32 and then transmitted to the FEP corrugated plate 33 for energy dissipation and buffering, so that the support bracket 3 is endowed with good anti-collision performance, and the pier can be protected.

Example 6

Referring to fig. 15 to 18, in this embodiment, another pier steel jacket box anti-collision structure is provided, and based on embodiment 4, a movable cantilever wing plate 34 is provided on the support plate 32, so that the support bracket 3 has a certain expansion and contraction deformation capability. The movable cantilever arm 34 includes a movable plate 341 and a connector 342, the movable plate 341 is slidably connected to the support plate 32, and two ends of the connector 342 are respectively connected to the movable plate 341 and the anti-collision steel sleeve box 1. Thus, by arranging the movable cantilever wing plate 34, when the ship impacts the anti-collision steel sleeve box, the outer steel coaming 12 can be linked with the movable plate 341 to move back and forth on the support plate 32 in the deformation process, so that the energy dissipation, buffering and anti-collision capacity is improved.

In some more specific embodiments, the support plate 32 is formed of two thin steel plates arranged in parallel, and a horizontal guide groove 321 and a vertical guide groove 322 arranged vertically are formed between the two thin steel plates. The movable plate 341 is composed of two vertically connected horizontal plates 3411 and vertical plates 3412, the horizontal plates 3411 are slidably fitted to the horizontal guide grooves 321, and the vertical plates 3412 are slidably fitted to the vertical guide grooves 322. The connecting piece 342 can be a thin metal round rod, a steel wire rope or a stay cable, and when the connecting piece is installed, the two ends of the connecting piece 342 are respectively and fixedly connected with the movable plate 341 and the bottom of the anti-collision steel sleeve box 1 in a welding mode, so that the anti-collision steel sleeve box 1 is in anchor connection with the supporting bracket 3.

Example 7

Referring to fig. 19 to 23, the present embodiment provides another pier steel boxed crash-proof structure, which is different from embodiment 2 in that a transverse rib plate 14 with a thickness of 10mm is respectively disposed at the upper portion and the lower portion of the inner side wall of an outer steel surrounding plate 12, a transverse rib plate 14 with a thickness of 10mm is respectively disposed at the upper portion and the lower portion of the outer side wall of an inner steel surrounding plate 11, and the rib width of the transverse rib plate 14 is 500mm. The springs 13 are provided with six layers, the distance between each layer of springs 13 is 150mm, 300mm, 400mm, 500mm, 400mm, 300mm and 150mm from top to bottom in sequence, the diameter of each spring 13 is 40mm, and the diameter of each spiral thread is 320mm. The inner side wall of the outer steel surrounding plate 12 and the outer side wall of the inner steel surrounding plate 11 are both correspondingly provided with a hollow cylindrical steel sleeve 15, one end of which is fixedly connected with the spring 13 in a sleeved mode through welding, as shown in fig. 23. So, spring 13 concreties on steel sleeve 15, and steel sleeve 15 has certain length, can reduce the distortion degree when spring 13 warp, and when boats and ships striking, because steel sleeve 15's restriction, spring 13 is difficult to take place the distortion at the in-process of compressing, ensures that spring 13 can maximize carry out the deformation energy dissipation.

In some embodiments, as shown in fig. 19, two tangentially connected crash steel boxes 1 are provided with a buffer space 16 at one end close to each other, and no spring 13 is arranged in the buffer space 16. The buffer space accounts for one sixth of the whole anti-collision steel sleeve box. Because the tangent place is difficult to be strikeed by boats and ships, through setting up the buffering space that does not install the spring, can simplify overall structure and reduce manufacturing cost.

As a modified embodiment, in addition to example 6, the support bracket 3 of example 4 or example 5 may be further provided.

By carrying out ship collision finite element analysis calculation model tests on the pier steel sleeve box anti-collision structures of the embodiments 1 to 6, the maximum energy dissipation is 82 percent, and the minimum energy dissipation is 59 percent; in addition, compared with the whole anti-collision structure which adopts FRP materials (the cost is about 1000 ten thousand yuan/pier), the anti-collision structure adopts the structural design of combining steel materials and FRP materials, and the engineering cost is lower (the estimated cost is 240 ten thousand yuan/pier).

When the anti-collision steel sleeve box 1 is impacted by a ship, the anti-collision steel sleeve box 1 can utilize the deformation energy dissipation of the spring 13 and the buffering impact and the rotation energy dissipation of the FRP roller structure 2, can utilize the backward displacement of the movable cantilever wing plate 34 on the supporting bracket 3 to not restrain the deformation energy dissipation of the anti-collision steel sleeve box 1, and can also utilize the anchor tying connection effect of the connecting piece 342 between the anti-collision steel sleeve box 1 and the supporting bracket 3 to restrain the upward displacement and the overturning of the part of the anti-collision steel sleeve box 1, so that the flexible anti-collision performance of the anti-collision steel sleeve box 1 can be fully exerted. In addition, compared with the prior art that the whole anti-collision structure is made of FRP materials, the anti-collision structure can greatly reduce the manufacturing and maintenance cost and has better economic value and social benefit.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a pier steel pouring jacket anticollision structure which characterized in that: the anti-collision steel casing box comprises a cylindrical anti-collision steel casing box arranged on a pier, wherein at least two pier studs are arranged on the pier, each pier stud is sleeved with one anti-collision steel casing box, the outer walls of two adjacent anti-collision steel casing boxes are connected in a tangent mode, and each anti-collision steel casing box comprises an inner steel coaming and an outer steel coaming; a plurality of FRP roller structures which are annularly arranged and distributed along the peripheral surface of the pier column are arranged between the inner steel enclosing plate and the pier column, and the FRP roller structures are hollow cylindrical shells which are made of FRP materials in a molding mode and provided with openings at two ends; the outer steel enclosing plate and the inner steel enclosing plate are connected through a plurality of deformable energy dissipation elastic parts, the elastic parts are springs, the springs are distributed in a multi-layer mode along the height direction of the anti-collision steel sleeve box, and the springs on each layer are distributed in an array mode at equal intervals along the central axis of the anti-collision steel sleeve box; a supporting bracket is arranged below the anti-collision steel jacket box and comprises a bracket steel coaming connected with the pier and a plurality of supporting plates distributed along the outer wall of the bracket steel coaming in an array manner; the anti-collision steel sleeve box is characterized in that an FRP corrugated plate is arranged between the inner wall of the bracket steel enclosing plate and the pier, a movable cantilever wing plate is arranged on the supporting plate and comprises a movable plate and a connecting piece, the movable plate is connected with the supporting plate in a sliding mode, and two ends of the connecting piece are respectively connected with the movable plate and the anti-collision steel sleeve box.

2. The pier steel pouring jacket anti-collision structure according to claim 1, characterized in that: the inner side wall of the outer steel enclosing plate and the outer side wall of the inner steel enclosing plate are both provided with cross rib plates which are distributed in an annular mode, and the cross rib plates are located between the outer steel enclosing plate and the inner steel enclosing plate.

3. The pier steel pouring jacket anti-collision structure according to claim 2, characterized in that: one end of each spring is fixedly connected with the transverse rib plate on the outer steel enclosing plate, and the other end of each spring is fixedly connected with the transverse rib plate on the inner steel enclosing plate.

4. The pier steel pouring jacket anti-collision structure according to claim 1, characterized in that: one end of each spring is fixedly connected with the outer steel enclosing plate, and the other end of each spring is fixedly connected with the inner steel enclosing plate.

5. The pier steel pouring jacket anti-collision structure according to claim 1, characterized in that: the inside wall of outer steel bounding wall with the lateral wall of interior steel bounding wall all corresponds and is provided with one end and spring cup joint fixed connection's steel sleeve.

6. The pier steel pouring jacket anti-collision structure according to claim 1, characterized in that: the two adjacent anti-collision steel sleeve boxes in tangent connection are provided with buffer spaces at the ends close to each other, and springs are not arranged in the buffer spaces.