CN210086172U - Multistage buffering energy-consumption type bridge anti-collision device - Google Patents
Multistage buffering energy-consumption type bridge anti-collision device Download PDFInfo
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- CN210086172U CN210086172U CN201920165338.0U CN201920165338U CN210086172U CN 210086172 U CN210086172 U CN 210086172U CN 201920165338 U CN201920165338 U CN 201920165338U CN 210086172 U CN210086172 U CN 210086172U
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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
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Abstract
The utility model relates to a multistage buffering power consumption type bridge buffer stop, a serial communication port bridge buffer stop is including a plurality of anticollision festival section around pier or cushion cap setting, and each anticollision festival all includes anti-corrosion steel case module absolutely, including interior steel case, outer steel case, anti-corrosion steel case module divide into from bottom to top and prevents sinking submodule piece and crashproof submodule piece after hitting, and fill light macromolecular material between the interior steel case of anti-sinking submodule piece after hitting, the outer steel case, fill rubber class material between the interior steel case of anti-collision submodule piece and the outer steel case, anti-corrosion steel case module nearly bridge structures one side is provided with first order buffering-can contract rolling contact module and second grade energy-absorbing-sliding contact module. Compared with the prior art, the utility model discloses can realize the multistage anti-floating object of bridge construction, boats and ships striking. Under different impact strengths, the device can realize multi-stage repair on the premise of effectively protecting the bridge structure. The excellent corrosion resistance of the composite steel plate solves the problem of corrosion prevention and maintenance of the anti-collision device in rivers, lakes and seas, and has outstanding engineering value and economic benefit.
Description
Technical Field
The utility model relates to a bridge structures prevents floater, boats and ships striking floating device, especially relates to a multistage buffering power consumption type bridge buffer stop.
Background
And taking engineering measures for reducing the collision risk of the bridge and the ship. When the impact force of the ship is close to or far greater than the bearing capacity of the bridge pier, the anti-collision protection system attached to the bridge pier can protect the bridge pier from being damaged by impact and avoid the collapse of the bridge superstructure caused by the damage. And in order to meet the requirement of bridge durability, even when the ship impact force is smaller than the bearing capacity of the bridge pier, ship impact prevention facilities with corresponding scales can be arranged to prevent the bridge pier durability from being damaged, such as the bridge pier concrete is knocked down by the ship.
Compared with a fixed device, the floating device has stronger adaptability to the conditions of obvious water level change, large tidal range and the like, and meanwhile, the construction cost is relatively low. The steel has stable mechanical property, and the related technology is the most mature, so the steel floating device is widely applied in recent years, but some problems are also exposed:
firstly, in the normal service process, the floating device continuously contacts and rubs with the concrete surface of the bridge structure, so that the structure has diseases such as surface concrete peeling, steel bar exposure and the like.
And (4) maintenance after collision. When the device is impacted by different intensities, the maintenance work is carried out in a tedious and time-consuming manner. Especially, for the device water-tightness failure caused by local damage under small-strength impact, the device water-tightness failure is realized by dismantling the device from an anti-collision device, carrying out overhaul (or remanufacturing a new monomer) in a factory, confirming through a watertight test, and installing and fixing after meeting the steel structure anticorrosion design requirement. After the device receives the high strength collision of large-scale boats and ships, cause the large tracts of land of device to be impaired, the box is irritated to the water, if do not have effective connection with the bridge structures, lead to the device to sink into aquatic, the loss is serious.
And (5) corrosion prevention and maintenance. As a steel anti-collision structure, the phenomenon that a small ship collides, a large ship collides at a low speed or other accidental factors cause partial slight damage, and a damp external environment induces a large area of anti-corrosion paint peel near the damaged part to fall off frequently occurs, so that the anti-corrosion maintenance of the device within the designed service life becomes a problem to be solved urgently.
Chinese patent CN102535329A discloses a cylindrical composite material bridge anti-collision device, which is composed of straight cylindrical and curved cylindrical anti-collision unit assemblies. The anti-collision unit is composed of a barrel and a filling material body in the barrel, and a moving device is arranged on the side close to the bridge structure. The patent has the advantages of simple structure, single anti-collision line and uncertain performance grading when the uncertain collision load is faced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multistage buffering power consumption type bridge buffer stop in order to overcome the defect that above-mentioned prior art exists, can realize that the multistage floater, boats and ships striking of preventing of bridge structures.
The purpose of the utility model can be realized through the following technical scheme:
the multistage buffering energy-consumption type bridge anti-collision device is characterized by comprising a plurality of anti-collision sections arranged around a pier or a bearing platform, and each anti-collision section comprises
The anti-corrosion steel box module comprises an inner steel box and an outer steel box, the anti-corrosion steel box module is divided into an after-collision anti-settling submodule and an anti-collision submodule from bottom to top, a light polymer material is filled between the inner steel box and the outer steel box of the after-collision anti-settling submodule, and a rubber material is filled between the inner steel box and the outer steel box of the anti-collision submodule;
the first-stage buffering-retractable rolling contact module comprises a folded energy absorption base and a rolling component, wherein the folded energy absorption base is sequentially arranged in an overlapping mode along the impact direction, and the rolling component can generate rolling friction with the bridge structure; the second-stage energy absorption-sliding contact module comprises rubber fenders which are sequentially arranged along the impact direction in a superposed mode and sliding components which can be in sliding contact with the bridge structure;
the rolling component which can generate rolling friction with the bridge structure in the first-stage buffering-retractable rolling contact module extends for a certain distance along the impact direction than the sliding component which can generate contact with the bridge structure in the second-stage energy absorption-sliding contact module, namely the distance between the rolling component and the bridge structure is smaller than the distance between the sliding component and the bridge structure.
Further, the end part of the inner steel box is provided with a flange plate, the inner steel boxes of the adjacent anti-collision sections are connected through the flange plate, and the outer steel boxes of the adjacent anti-collision sections are connected through a connecting butt strap.
Further, for a square pier or a square bearing platform, the plurality of anti-collision segments are composed of at least four linear anti-collision segments and four round-angle anti-collision segments.
Further, according to the utility model discloses a further embodiment, a plurality of anticollision festival is disconnected including the broken of linear type anticollision festival, the broken corner transition type anticollision festival section that curved type anticollision festival and be used for connecting the broken of linear type anticollision festival and curved type anticollision festival, and wherein the corrosion-resistant steel case module thickness at corner transition type anticollision section both ends is different.
Furthermore, the rolling component in the first-stage buffer-retractable rolling contact module extends for a certain distance along the impact direction than the sliding component in the second-stage energy absorption-sliding contact module, and the distance is determined according to the overall deformation capacity of the device and is generally preferably 2-10 cm.
Preferably, the first-stage buffer-retractable rolling contact module and the second-stage energy absorption-sliding contact module are connected with the third-stage energy consumption-corrosion-resistant steel box module through high-strength bolts.
Preferably, the first-stage buffer-retractable rolling contact module and the second-stage energy absorption-sliding contact module are connected with the third-stage energy consumption-corrosion-resistant steel box module through backing plates, specifically, the folded energy absorption base is welded with the backing plates, the backing plates and the outer steel box are provided with bolt holes matched with each other, the rubber fender is also provided with bolt holes matched with the backing plates, the backing plates are connected with the outer steel box through high-strength bolts, and the rubber fender is connected with the backing plates and the outer steel box through the high-strength bolts.
More preferably, the yield force and the deformability of the folded energy absorption base can be designed according to requirements.
Still further preferably, the first stage bumper-retractable rolling contact module and the second stage energy absorption-sliding contact module have a lower overall stiffness than the third stage dissipative-corrosion resistant steel box module.
More preferably, the corrosion-resistant steel box module is divided into a post-collision anti-sinking sub-module and an anti-collision sub-module from bottom to top near the water line.
Still further preferably, the inner steel box and the outer steel box in the energy-consuming and corrosion-resistant steel box module are made of composite metal steel plates, and the composite metal plates can be titanium-steel rolled composite plates, titanium-steel explosive composite plates or explosive-rolled composite plates.
More preferably, in the post-crash anti-sinking module, longitudinal stiffening ribs are welded inside the outer steel box and/or inside the inner steel box.
Preferably, in the post-collision anti-sinking module, a light polymer material is filled between the inner steel box and the outer steel box, and the light polymer material may be molded polystyrene foam (EPS), or rigid polyurethane foam (PUR), or polyethylene foam (PE), or other light polymer materials.
Preferably, in the anti-collision sub-module, a rubber material is filled between the inner steel box and the outer steel box, and the rubber material may be a rubber ring, rubber particles, a rubber tire or other rubber material with good buffering and energy absorption effects.
More preferably, the bellows-type energy absorption base is a corrugated cylinder with a circular cross section, or a corrugated cylinder with a square cross section, or a corrugated cylinder with any polygonal cross section, and the material is preferably mild steel or steel with outstanding deformability.
More preferably, the rubber fender can be a Cylinder (CY), a semicircle (D), a Super Arch (SA), a super drum (SC) or other rubber structures with good buffering and energy absorbing effects.
More preferably, the rolling component which can generate rolling friction with the bridge structure in the first-stage buffer-retractable rolling contact module can be a metal roller or a nylon roller;
the sliding component which can be contacted with the bridge structure in the second-stage energy absorption-sliding contact module can be a polytetrafluoroethylene sliding plate or other plates with small friction coefficient and good wear resistance.
More preferably, a transverse stiffening plate is arranged between the inner steel box and the outer steel box in the energy-consuming and corrosion-resistant steel box module.
More preferably, the multistage buffering energy-consumption type anti-collision corrosion-resistant steel buoyancy tank is composed of a plurality of anti-collision segments, inner steel tanks of adjacent anti-collision segments are connected through flange plates, and outer steel tanks are connected through connecting straps.
The third stage energy dissipation body of the utility model is a steel buoyancy tank, and can also be a steel buoy and the like.
Under the normal operation condition of a bridge structure, the floating anti-collision device can well adapt to the condition of large tidal range, and the device is continuously lifted and dropped along with the change of water level. Particularly in the marine environment, the rise and fall of the device in a design reference period are accumulated for ten thousand times, and how to ensure that the device is in good contact with a bridge structure and not to damage the surface of the structure is an important problem that the floating type anti-collision device must be considered in a non-collision working condition. Through reasonable distribution of strength and rigidity among all modules of the device, the designated module is damaged when the device is collided by a small ship, or collided by a large ship at a low speed or due to other accidental factors, the normal work of the device is not influenced, and only module maintenance or replacement on a component layer is needed during repair. After the device is collided by the high strength of the large ship, each anti-collision module is damaged in sequence, and during repair, the maintenance or replacement of the anti-collision segment layer is completed. In addition, the anti-corrosion and maintenance device is very important as an anti-corrosion and maintenance problem of a steel anti-collision structure, and how to realize the maintenance-free problem of the device in the normal service process or after slight impact and scraping is worthy of deep research.
Compared with the prior art, the utility model has the advantages of it is following:
firstly, multistage anti-collision fortification, module division is clear, and the performance index and the performance grade division of the anti-collision device are easy to establish. The method comprises the following steps: the energy-absorbing energy-resisting steel box comprises a first-stage buffer-retractable rolling contact module, a second-stage energy-absorbing-sliding contact module and a third-stage energy-consuming-corrosion-resisting steel box module.
And secondly, the device is replaceable, simple to maintain, and has outstanding engineering value and economic benefit. And (3) small collision and small repair: and repairing or replacing the first-stage buffer-retractable rolling contact module and the second-stage energy absorption-sliding contact module. And (3) major crash overhaul: and maintaining or replacing the third-stage energy consumption-corrosion-resistant steel box module.
Thirdly, the self-floating capacity is strong, and the self-floating capacity is still realized after serious damage. And setting different sub-function area modules by combining engineering experience. The existing hull structure design and a typical ship collision accident case show that the overwater part anti-collision device is a main stress area, and the underwater part is a second time. The utility model discloses the device is divided into from bottom to top and is prevented sinking submodule piece, anticollision submodule piece after hitting. The anti-sinking submodule ensures that the device is damaged and enters a water body without sinking, and is internally provided with the longitudinal stiffening ribs and the light high polymer material, thereby ensuring that the whole device has strong self-floating capability and good buffering and energy dissipation capability. The anti-collision submodule is a main collision area, is internally provided with rubber materials, and has strong deformability and obvious buffering effect.
Fourthly, the buffer effect is obvious, and the energy consumption capability is outstanding. The web-folding type energy-absorbing base is strong in deformation capacity, and under low-strength impact, the web-folding type energy-absorbing base deforms at first, so that a certain buffering energy-absorbing effect is achieved, and other modules do not deform or deform unobviously. Under the impact of medium strength, the web-folding type energy absorption base deforms obviously, and after the web-folding type energy absorption base exceeds a specified extension distance, the web-folding type energy absorption base and the rubber fender generate a good buffering effect, and at the moment, the main steel box does not deform or slightly deforms. Under the high strength striking, after first order, the anti-collision line of second grade worked in proper order, further, main part steel case takes place to warp, and double-deck steel construction cooperation embeds rubber class material or macromolecular material for device main part power consumption ability is outstanding.
Fifthly, the corrosion resistance is extremely strong, and the composite steel plate ensures that the device is maintenance-free in the normal service process or after slight impact and scraping. The problem that the corrosion-resistant paint skin of a small ship is locally slightly damaged to induce large-area falling of the corrosion-resistant paint skin of a large ship due to collision of the small ship or low-speed collision of a large ship or other accidental factors is solved.
Drawings
Fig. 1 is a typical cross-sectional view of a multistage buffering energy-consuming type anti-collision corrosion-resistant steel buoyancy tank in a first embodiment of the present invention;
FIG. 2 is an elevational view of a linear bumper segment;
FIG. 3 is a plan view of FIG. 2;
FIG. 4 is an elevational view of a first stage bumper-retractable rolling contact module and a second stage energy absorbing-sliding contact module;
FIG. 5 is a plan view of FIG. 4;
FIG. 6 is a schematic structural view of a bellows-type energy absorption base (cylindrical);
FIG. 7 is a force-displacement curve for a bellows-type energy-absorbing mount (cylindrical);
FIG. 8 is a cross section of a rubber fender structure (SA type);
fig. 9 is an elevation view of a rubber fender structure (SA type);
FIG. 10 is a connection diagram of an inner steel box flange configuration;
FIG. 11 is a cross-sectional view I-I of FIG. 10;
FIG. 12 is a plan view of FIG. 10;
FIG. 13 is a view showing a portion a;
FIG. 14 is a structural view of an external steel box connection strap;
FIG. 15 is a schematic view of a portion b of FIG. 14;
FIG. 16 is a view of the end plate configuration of FIG. 2;
FIG. 17 is a side view of FIG. 16;
FIG. 18 is a cross stiffener construction;
FIG. 19 is a side view of FIG. 18;
FIG. 20 is a schematic plan view of a curved bumper segment;
FIG. 21 is a schematic plan view of a corner transition type impact segment;
FIG. 22 is an overall schematic view of a crash structure;
fig. 23 is a typical cross-sectional view of a multistage buffering energy-consuming type anti-collision corrosion-resistant steel buoyancy tank in the second embodiment of the present invention;
FIG. 24 is an elevational view of a first stage bumper-retractable rolling contact module and a second stage energy absorbing-sliding contact module of the second embodiment;
FIG. 25 is a plan view of FIG. 24;
FIG. 26 is a schematic structural view of a bellows-type energy absorption base (square tubular);
FIG. 27 is a general schematic view of a crash structure;
the reference numbers in the figures indicate:
1-outer steel box, 2-inner steel box, 3-longitudinal stiffening rib, 4-light high polymer material (polyurethane foam), 5-rubber material (rubber tyre), 6-cylindrical folded web type energy absorption base, 7-rolling component, 8-backing plate, 9-SA type rubber fender, 10-high strength bolt, 11-sliding component (polytetrafluoroethylene plate), 12-bearing platform/pier, 13-transverse stiffening plate, 14-end plate, 15-flange plate, 16-flange plate stiffening rib, 17-connecting butt plate, 18-rib opening, 19-bolt hole, 20-end plate wall plate, 21-D type rubber fender, 22-square tubular folded web type energy absorption base, A-first stage buffer-retractable rolling contact module, b-second-stage energy absorption-sliding contact module, C-third-stage energy consumption-corrosion-resistant steel buoyancy tank.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example one
The utility model provides a multistage buffering power consumption type anticollision corrosion-resistant steel flotation tank, its structure is shown with fig. 1 to 22, includes a plurality of anticollision festival section around pier or cushion cap setting, and each anticollision festival absolutely all includes:
first stage bumper-retractable rolling contact module a: including backing plate 8, the web-type energy-absorbing base 6 is rolled over to the cylinder, roll subassembly (metal gyro wheel) 7 that set up along striking direction stack in proper order, wherein, the web-type energy-absorbing base 6 is rolled over to the cylinder is connected through the welding with backing plate 8, is equipped with bolt hole 19 on backing plate 8 and the outer steel box 1, and backing plate 8 is connected with outer steel box 1 through high strength bolt 10.
Second-stage energy absorption-sliding contact module B: the novel steel box comprises an SA type rubber fender 9 sequentially overlapped along the impact direction, a sliding assembly (polytetrafluoroethylene plate) 11 is arranged on the top surface of the SA type rubber fender 9, the SA type rubber fender 9 is provided with bolt holes 19 corresponding to a backing plate 8, and the SA type rubber fender is connected with an outer steel box 1 through high-strength bolts 10.
Third-stage energy consumption-corrosion-resistant steel buoyancy tank C: the anti-collision device comprises an inner steel box and an outer steel box, wherein the steel buoyancy tank is divided into a post-collision anti-settling sub module and an anti-collision sub module at a water level line from bottom to top, a light high polymer material (polyurethane foam) 4 is filled between the inner steel box 2 and the outer steel box 1 of the post-collision anti-settling sub module, and a rubber material (rubber tire) 5 is filled between the inner steel box 2 and the outer steel box 1 of the anti-collision sub module.
In this embodiment, the first-stage damping-retractable rolling contact module is extended 2cm in the impact direction than the second-stage energy-absorbing-sliding contact module, so that when the bearing platform/pier is impacted, the bearing platform/pier is firstly contacted with the first-stage damping-retractable rolling contact module, and the first-stage damping is performed on the first-stage damping-retractable rolling contact module.
As shown in fig. 1, in the example, the outer steel tank 1 is internally provided with longitudinal stiffening ribs 3 along a specified distance below the water line.
As shown in fig. 2 to 3, in the linear anti-collision segment in the example, the rubber-like material (rubber tire) 5 is vertically placed into the reserved spaces on both sides of the outer steel box 1 and the inner steel box 2 along the axial direction of the device through the uppermost welded longitudinal stiffening rib 3 on the outer steel box 1, and is horizontally placed into the reserved spaces on the tops of the outer steel box 1 and the inner steel box 2 along the axial direction of the device.
As shown in fig. 2 to 3, in the linear anti-collision segment in the example, the spaces reserved on both sides and the bottom space of the outer steel box 1 and the inner steel box 2 are filled with a light polymer material (polyurethane foam) 4.
The outer steel box 1 and the inner steel box 2 are welded with transverse stiffening plates 13 along a specified distance.
As shown in FIG. 6, the radius of the cylindrical bellows-type energy absorption base is 10cm, the wall thickness is 2cm, and the height is 20 cm.
As shown in fig. 7, a 2100kN horizontal force is generated when the cylindrical bellows-type energy absorption base is deformed by 20mm in the example. In the example shown in fig. 2, the linear bumper segment is axially oriented with two juxtaposed cylindrical bellows-type energy-absorbing mounts in mechanical parallel relationship to provide a horizontal force of 4200kN (2100 kN × 2).
As shown in FIG. 10, the end of the inner steel shell 2 is provided with a flange 15, and in the example, the flange 15 is provided with bolt holes 19 and flange stiffeners 16 along the periphery.
And the flange plates 15 and the high-strength bolts 10 are connected between the steel boxes 2 in the segments.
As shown in fig. 14, the connecting strap 17 is provided with bolt holes corresponding to the reserved bolt holes of the end plate 14 and the outer steel box 1, and the three are connected by the high-strength bolt 10.
As shown in fig. 16, the end plate 14 in this example is provided with rib openings 18 corresponding to the longitudinal stiffening ribs 3 on the outer steel box 1. The end plate wall plate 20 is provided with bolt holes 19, and the end plate 14 is connected with the outer steel box 1 through the high-strength bolts 10 and the bolt holes 19 arranged at the end part of the outer steel box 1.
As shown in fig. 18, the transverse stiffener plates 13 in the example are provided with rib openings 18 corresponding to the longitudinal stiffening ribs 3 on the outer steel box 1.
As shown in fig. 20, the bending type anti-collision segment outer steel box 1 and the bending type anti-collision segment inner steel box 2 can be bent by a designated angle to adapt to the change of the geometric dimension of the bridge structure.
As shown in fig. 21, the corner transition section outer steel box 1 and the inner steel box 2 in the example can be connected along a designated angle to meet the requirement of width change of the crash structure.
As shown in FIG. 22, the anti-collision steel box in the example can be well adapted to the geometric dimension of the bridge structure, different section widths are provided in different directions, and different fortification requirements are met.
Example two
A multi-stage buffering energy-consumption type anti-collision corrosion-resistant steel buoyancy tank is structurally shown in figure 23, and is different from the first embodiment in that rubber materials (rubber tires) 5 are vertically placed in reserved spaces on two sides of an outer steel tank 1 and an inner steel tank 2 in the axial direction through a vertical stiffening rib 3 welded on the uppermost portion of the outer steel tank 1, and the longitudinal stiffening ribs 3 are arranged on the outer steel tank 1 and the inner steel tank 2.
In contrast to the first embodiment, the first-stage bumper-retractable rolling contact module is a square-tube bellows-type energy absorption base 22, and the structural schematic diagram is shown in fig. 24. A D-shaped rubber fender 21 is arranged in the second-stage energy absorption-sliding contact module.
As shown in fig. 27, the crash box in the example can be well adapted to the bridge structure geometry.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (9)
1. The multistage buffering energy-consumption type bridge anti-collision device is characterized by comprising a plurality of anti-collision sections arranged around a pier or a bearing platform, and each anti-collision section comprises
The anti-corrosion steel box module comprises an inner steel box and an outer steel box, the anti-corrosion steel box module is divided into an after-collision anti-settling submodule and an anti-collision submodule from bottom to top, a light polymer material is filled between the inner steel box and the outer steel box of the after-collision anti-settling submodule, and a rubber material is filled between the inner steel box and the outer steel box of the anti-collision submodule;
the first-stage buffering-retractable rolling contact module comprises a folded energy absorption base and a rolling component, wherein the folded energy absorption base is sequentially arranged in an overlapping mode along the impact direction, and the rolling component can generate rolling friction with the bridge structure; the second-stage energy absorption-sliding contact module comprises rubber fenders which are sequentially arranged along the impact direction in a superposed mode and sliding components which can be in sliding contact with the bridge structure;
the rolling component which can generate rolling friction with the bridge structure in the first-stage buffering-retractable rolling contact module extends for a certain distance along the impact direction than the sliding component which can generate contact with the bridge structure in the second-stage energy absorption-sliding contact module, namely the distance between the rolling component and the bridge structure is smaller than the distance between the sliding component and the bridge structure.
2. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: the end part of the inner steel box is provided with a flange plate, the inner steel boxes of the adjacent anti-collision sections are connected through the flange plate, and the outer steel boxes of the adjacent anti-collision sections are connected through a connecting butt strap.
3. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: roll over web-type energy-absorbing base welding and have the backing plate, backing plate and outer steel box are equipped with matched with bolt hole, and rubber fender also is equipped with the bolt hole with backing plate matched with, the backing plate is connected with outer steel box through high strength bolt, rubber fender pass through high strength bolt and backing plate and outer steel box be connected.
4. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: and longitudinal stiffening ribs are welded inside the outer steel box and/or inside the inner steel box of the post-collision anti-sinking module.
5. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: the inner steel box and the outer steel box are made of composite steel plates, and the composite steel plates are titanium-steel rolled composite plates, or titanium-steel explosive composite plates or explosive-rolled composite plates.
6. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: the web-folding energy absorption base is a corrugated cylinder with a circular section, or a corrugated cylinder with a square section, or a corrugated cylinder with any polygonal section.
7. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: the integral rigidity of the first-stage buffer-retractable rolling contact module and the second-stage energy absorption-sliding contact module is lower than that of the third-stage energy consumption-corrosion-resistant steel box module.
8. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: the plurality of anti-collision sections are composed of at least four linear anti-collision sections and four fillet anti-collision sections.
9. The multi-stage buffering energy-consumption type bridge anti-collision device according to claim 1, wherein: the plurality of anti-collision sections comprise linear anti-collision sections, bent anti-collision sections and corner transition type anti-collision sections for connecting the linear anti-collision sections and the bent anti-collision sections.
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| CN201920165338.0U CN210086172U (en) | 2019-01-30 | 2019-01-30 | Multistage buffering energy-consumption type bridge anti-collision device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569570A (en) * | 2020-12-31 | 2021-03-30 | 佳木斯大学 | Ice and snow sports building match place buffer stop |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569570A (en) * | 2020-12-31 | 2021-03-30 | 佳木斯大学 | Ice and snow sports building match place buffer stop |
| CN112569570B (en) * | 2020-12-31 | 2022-11-22 | 佳木斯大学 | Ice and snow sports building match place buffer stop |
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