CN108166389B - Double-layer anti-collision guardrail for highway bridge and use method thereof - Google Patents
Double-layer anti-collision guardrail for highway bridge and use method thereof Download PDFInfo
- Publication number
- CN108166389B CN108166389B CN201810068504.5A CN201810068504A CN108166389B CN 108166389 B CN108166389 B CN 108166389B CN 201810068504 A CN201810068504 A CN 201810068504A CN 108166389 B CN108166389 B CN 108166389B
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- buffer
- upright post
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- guardrail
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000872 buffer Substances 0.000 claims abstract description 186
- 239000002131 composite material Substances 0.000 claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 230000003139 buffering effect Effects 0.000 claims abstract description 20
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 229920000271 Kevlar® Polymers 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 4
- 239000004761 kevlar Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 43
- 230000008859 change Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/145—Means for vehicle stopping using impact energy absorbers
- E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements
Abstract
The invention discloses a double-layer anti-collision guardrail for a highway bridge and a use method thereof, wherein the anti-collision guardrail comprises a main upright post, a composite buffer guardrail plate and an auxiliary upright post, the lower end of the main upright post is fixed, one side facing a highway is connected with the composite buffer guardrail plate, and a buffer device is arranged at the connection part of the composite buffer guardrail plate and the main upright post; the auxiliary upright post is arranged on one side of the composite buffering guardrail plate, which faces the highway, the lower end of the auxiliary upright post is fixed, and the upper end of the auxiliary upright post is connected with the main upright post; the auxiliary upright post is sleeved with a buffer cylindrical steel sleeve, and the outer surface of the buffer cylindrical steel sleeve is provided with a buffer layer. The anti-collision guardrail has two-stage safety protection functions, can effectively consume the kinetic energy of the automobile, correct the driving direction of the automobile and reduce the damage of personnel and vehicles.
Description
Technical Field
The invention relates to the technical field of road safety equipment, in particular to a double-layer anti-collision guardrail for a highway bridge and a use method thereof.
Background
The highway bridge crash barrier is the most important traffic infrastructure, and the highway bridge crash barrier is convenient for people and also has a huge crisis. Although the bridge guardrail plate of the expressway cannot avoid accidents, at least the casualties can be reduced. Because sometimes collisions between vehicles may not cause a great hazard to humans, but collisions between vehicles and humans are extremely dangerous. Generally, the guardrail plate is an indispensable part of the expressway, and plays an indisputable role in protecting the safety of the driving people. The existing highway bridge anti-collision fence is mainly a continuous structure formed by splicing corrugated steel guardrail plates and supported by main columns, and utilizes deformation of soil bases, upright columns and cross beams to absorb collision energy and force out-of-control vehicles to change directions, restore to normal driving directions and prevent the vehicles from rushing out of the road.
The automobile has kinetic energy in the running process, the greater the speed is, the greater the kinetic energy is, so in emergency, when the automobile collides with the common guardrail, the guardrail basically does not move and deform under the action of instant impact load, the energy absorption in the collision process is based on the plastic deformation of the automobile, the friction contact between the automobile and the guardrail is based on the climbing height of the automobile along the guardrail and the change of the running direction of the automobile, and the absorbed energy is limited and can not change the running direction of the automobile in a short time, so the extremely great kinetic energy of the automobile can not be converted into the energy for damaging the automobile, especially the broken protection plates hurt people more seriously, and the danger of the automobile turning into waterproof ditches on two sides of the expressway or rushing into the opposite lane to collide can not be effectively prevented. If the guard rail can change the running direction of the automobile in a short time, the guard rail is beneficial to restoring the automobile to the normal running direction.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide the double-layer anti-collision guardrail for the highway bridge and the application method thereof.
The aim of the invention is realized by the following technical scheme:
the double-layer anti-collision guardrail for the highway bridge comprises a main upright post, a composite buffering guardrail plate and an auxiliary upright post, wherein the lower end of the main upright post is fixed, one side facing the highway is connected with the composite buffering guardrail plate, and a buffering device is arranged at the connection part of the composite buffering guardrail plate and the main upright post; the auxiliary upright post is arranged on one side of the composite buffering guardrail plate, which faces the highway, the lower end of the auxiliary upright post is fixed, and the upper end of the auxiliary upright post is connected with the main upright post; the auxiliary upright post is sleeved with a buffer cylindrical steel sleeve, and the outer surface of the buffer cylindrical steel sleeve is provided with a buffer layer.
The composite buffer guardrail plate is an S-shaped composite buffer plate.
The composite buffering guardrail plate sequentially comprises an inner layer buffer plate body, a middle layer buffer plate body and an outer layer buffer plate body, wherein the inner layer buffer plate body, the middle layer buffer plate body and the outer layer buffer plate body are mutually bonded.
The inner layer buffer plate body, the middle layer buffer plate body and the outer layer buffer plate body are all of net structures formed by compounding Kevlar fibers and resin.
The buffer device is buffer rubber, the buffer rubber is arranged at the trough of the composite buffer guardrail plate, the buffer rubber, the composite buffer guardrail plate and the main stand column are connected through connecting bolts, and after the buffer rubber, the composite buffer guardrail plate and the main stand column are connected through the connecting bolts, a buffer distance is reserved between the peak of the composite buffer guardrail plate and the main stand column.
The connecting bolt is also sleeved with a steel gasket, the steel gasket is arranged between the buffer rubber and the composite buffer guardrail plate, one end of the steel gasket is in contact with the composite buffer guardrail plate, and the other end of the steel gasket is in contact with the buffer rubber.
The auxiliary upright post is in clearance fit with the buffer cylindrical steel sleeve.
The buffer layer is a striated buffer rubber, interference fit is arranged between the striated buffer rubber and the buffer cylindrical steel sleeve, and cross patterns are formed in the outer surface of the striated buffer rubber.
The lower part of the auxiliary upright post is provided with a supporting device for supporting and positioning the lower end of the buffer cylinder steel sleeve, the supporting device is of a sheet-shaped circular ring structure, and is sleeved on the auxiliary upright post and fixedly connected with the auxiliary upright post, and the lower end face of the buffer cylinder steel sleeve is in contact with the upper surface of the supporting device.
The method comprises the steps that when an automobile collides with a double-layer anti-collision guardrail of the highway bridge, the buffer cylindrical steel sleeve rotates around the auxiliary upright post and absorbs collision energy, and in the process that the buffer cylindrical steel sleeve rotates around the auxiliary upright post, the buffer cylindrical steel sleeve guides the automobile to correct the driving direction of the automobile, so that the automobile can drive forwards along a highway, and meanwhile, the buffer layer on the outer surface of the buffer cylindrical steel sleeve deforms and absorbs the collision energy;
when the automobile collides with the auxiliary upright post, the automobile collides with the composite buffer guardrail plate, and when the automobile collides with the composite buffer guardrail plate, the composite buffer guardrail plate deforms and absorbs collision energy, and meanwhile, the buffer device deforms and absorbs collision energy.
Compared with the prior art, the invention has the following beneficial effects:
the double-layer anti-collision guardrail for the highway bridge forms a first-stage protection through the auxiliary upright posts, the buffer cylindrical steel sleeve and the buffer layer, and forms a second-stage protection through the composite buffer guardrail plate, the buffer device and the main upright posts, so that the anti-collision guardrail for the highway bridge has a double-protection function;
when an automobile collides with the double-layer anti-collision guardrail of the highway bridge, the automobile collides with the first-stage protection firstly, the buffer cylindrical steel sleeve rotates around the auxiliary upright post and absorbs collision energy during collision, the buffer cylindrical steel sleeve guides the automobile in the process that the buffer cylindrical steel sleeve rotates around the auxiliary upright post, the running direction of the automobile is corrected, the running direction of the automobile can be effectively regulated, the automobile can run forwards along a highway, the automobile is prevented from running out of the road or entering into an opposite lane, the damage to passengers can be furthest reduced, and meanwhile, the buffer layer on the outer surface of the buffer cylindrical steel sleeve deforms and absorbs collision energy; when the automobile collides with the auxiliary upright post, the automobile collides with the composite buffer guardrail plate, and when the automobile collides with the composite buffer guardrail plate, the composite buffer guardrail plate deforms and absorbs collision energy, and meanwhile, the buffer device deforms and absorbs collision energy. Therefore, the invention can effectively consume the kinetic energy of the automobile, correct the running direction of the automobile and reduce the damage of personnel and vehicles.
Drawings
FIG. 1 is a schematic cross-sectional view of a dual-layer crash barrier for a highway bridge according to the present invention.
FIG. 2 is a top view of the junction of the cushion rubber of the present invention and the main column.
Fig. 3 is a schematic view of the structure of the steel gasket of the present invention.
FIG. 4 is a schematic structural view of a composite cushioning fence panel of the present invention.
Fig. 5 is an enlarged view of a portion of the upper portion of the double-layered crash barrier of the highway bridge according to the present invention.
Fig. 6 is a schematic view of the structure of the lower part of the auxiliary column according to the present invention.
In the figure, 1-main column, 2-connecting bolt, 3-buffer rubber, 4-steel gasket, 5-composite buffer guardrail plate, 6-auxiliary column, 7-buffer cylinder steel sleeve, 8-line buffer rubber and 9-supporting device.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the double-layer crash barrier for the highway bridge of the present invention comprises a main upright 1, a connecting bolt 2, a buffer rubber 3, a steel gasket 4, a composite buffer barrier plate 5, an auxiliary upright 6, a buffer cylindrical steel sleeve 7 and a textured buffer rubber 8. The highway bridge double-layer anti-collision guardrail comprises a main upright post 1, an S-shaped composite buffer guardrail plate 5 connected with the main upright post, an auxiliary upright post 6, a buffer cylindrical steel sleeve 7 connected with the auxiliary upright post and a corrugated buffer rubber 8, and is characterized in that the main upright post 1 and the S-shaped composite buffer guardrail plate 5 connected with the main upright post form second-stage protection, and the auxiliary upright post 6, the buffer cylindrical steel sleeve 7 and the corrugated buffer rubber 8 form first-stage protection.
The lower end of a main upright 1 is fixedly connected with a roadbed of a highway, one side of the main upright 1 facing the highway is connected with a composite buffer guardrail plate 5, and a buffer device is arranged at the connection part of the composite buffer guardrail plate 5 and the main upright 1; the buffer device is buffer rubber 3, the buffer rubber 3 is arranged at the trough of the composite buffer guardrail plate 5, the buffer rubber 3, the composite buffer guardrail plate 5 and the main upright 1 are connected through a connecting bolt 2, a steel gasket 4 is sleeved on the connecting bolt 2, the steel gasket 4 is arranged between the buffer rubber 3 and the composite buffer guardrail plate 5, one end of the steel gasket 4 is contacted with the composite buffer guardrail plate 5, the other end is contacted with the buffer rubber 3, and after the buffer rubber 3, the composite buffer guardrail plate 5 and the main upright 1 are connected through the connecting bolt 2, a buffer distance is reserved between the crest of the composite buffer guardrail plate 5 and the main upright 1; referring to fig. 2, the buffer rubber 3 is cylindrical or square, a central hole for passing through the connecting bolt 2 is formed along the axial direction, and the end surface of the connecting end of the buffer rubber 3 and the main upright 1 is a circular arc end surface in arc fit with the surface of the main upright 1; referring to fig. 3, the steel gasket 4 is in a shape of a circular plate, a central hole for passing through the connecting bolt 2 is formed in the center, and the central hole of the steel gasket 4 is larger than the nominal diameter of the screw portion of the connecting bolt 2;
the auxiliary upright post 6 is arranged on one side of the composite buffer guardrail plate 5, which faces the highway, the lower end of the auxiliary upright post 6 is fixedly connected with the roadbed of the highway, the upper end of the main upright post 1 is bent towards one side of the highway, and the upper end of the auxiliary upright post 6 is fixedly connected with the upper end of the main upright post 1; as shown in fig. 5, a buffer cylindrical steel sleeve 7 is sleeved on the auxiliary upright post 6, a clearance fit is formed between the auxiliary upright post 6 and the buffer cylindrical steel sleeve 7, a buffer layer is arranged on the outer surface of the buffer cylindrical steel sleeve 7, the buffer layer is a grain-shaped buffer rubber 8, the grain-shaped buffer rubber 8 and the buffer cylindrical steel sleeve 7 are in interference fit, the grain-shaped buffer rubber 8 is vulcanized on the outer surface of the buffer cylindrical steel sleeve 7, a cross pattern is formed on the outer surface of the grain-shaped buffer rubber 8, and the cross pattern is beneficial to increasing friction force between the grain-shaped buffer rubber 8 and an automobile; referring to fig. 6, a supporting device 9 for supporting and positioning the lower end of the buffer cylindrical steel sleeve 7 is arranged at the lower part of the auxiliary upright 6, the supporting device 9 is made of copper, is in a sheet-shaped circular ring structure, is sleeved on the auxiliary upright 6 and is fixedly connected with the auxiliary upright 6, and the lower end face of the buffer cylindrical steel sleeve 7 is in contact with the upper surface of the supporting device 9.
Referring to fig. 5, the composite buffer guardrail plate 5 is an S-shaped composite buffer plate, and each waveform of the composite buffer guardrail plate 5 is transited through a small arc, so that the waveform plate can generate larger deformation to buffer impact when being stressed;
the composite buffering guardrail plate 5 sequentially comprises an inner layer buffer plate body, a middle layer buffer plate body and an outer layer buffer plate body, wherein the inner layer buffer plate body, the middle layer buffer plate body and the outer layer buffer plate body are mutually bonded, and the inner layer buffer plate body, the middle layer buffer plate body and the outer layer buffer plate body are of a net-shaped structure formed by compounding Kevlar fibers and resin. The Kevlar fiber resin composite material is formed by compounding Kevalar fibers with epoxy, polyethylene, polycarbonate and polyester. The main performance characteristics of the composite buffer guardrail plate 5 are that the tensile strength is high, the ductility is good, and the tensile strength and the ductility are equivalent to those of metal; impact resistance exceeds that of carbon fiber reinforced plastics; the fatigue resistance is higher than that of glass fiber reinforced plastic and aluminum alloy, and the shock absorption capacity is 8 times of that of steel. Therefore, the second-layer anti-collision structure multi-layer guardrail plate of the highway double-layer anti-collision guardrail has certain flexibility, and achieves the buffering effect on collision vehicles. And the guardrail plate has the characteristics of corrosion resistance, ultraviolet aging resistance and low-temperature embrittlement resistance between 196 ℃ below zero and 100 ℃ above zero. No spark is generated in the vehicle scraping collision hit, and the detonation of the pilot fuel oil is avoided. The composite buffer guardrail plate 5 also makes the material of the guardrail plate lighter, which is only one eighth of steel, and can reduce a great deal of manpower and financial resources in installation and transportation. The composite buffer guardrail plate 5 is an engineering plastic composite plate with a three-layer structure, and the three-layer structure can improve the safety performance of the guardrail to a great extent. The layers are tightly connected and can be regarded as a whole. The engineering plastic has the advantages of excellent comprehensive performance, convenient molding, high cost performance and the like, and is plastic with excellent strength, heat resistance, hardness and aging resistance.
The auxiliary upright post 6 and the buffer cylindrical steel sleeve 7 are in clearance fit, so that small-force automobile impact can be buffered, and when an automobile collides against the auxiliary upright post 6, the buffer cylindrical steel sleeve 7 rotates around the auxiliary upright post 6, so that the wrong running direction of the automobile can be changed in time, the running direction of the automobile can be corrected, and the automobile can be restored to the normal running direction.
The interference fit is between the striation buffer rubber 8 and the buffer cylindrical steel sleeve 7, and the striation buffer rubber 8 has the function of increasing the friction between the automobile and the striation buffer rubber 8 when the automobile collides with the auxiliary upright post 6, so that the running direction of the automobile can be effectively regulated.
When the automobile collides with the double-layer anti-collision guardrail of the highway bridge, the first layer anti-collision structure plays a role when the buffer cylindrical steel sleeve 7 and the auxiliary upright post 6 cannot be damaged under the action of instant impact load, the buffer cylindrical steel sleeve 7 rotates around the auxiliary upright post 6 and absorbs collision energy, the buffer cylindrical steel sleeve 7 guides the automobile in the process of rotating around the auxiliary upright post 6, the running direction of the automobile is changed, the running direction of the automobile is corrected, the automobile runs forwards along a highway, the automobile is prevented from running out of the way or entering an opposite lane, the injury to passengers can be furthest reduced, and meanwhile, the buffer layer on the outer surface of the buffer cylindrical steel sleeve 7 deforms and absorbs the collision energy;
when the automobile is bumped to the first-stage protection with larger impact force, when the first-stage protection is completely destroyed, namely after the automobile bumps out the auxiliary upright post 6, the second-stage protection starts to play an important role in protection, the automobile bumps against the composite buffer guardrail plate 5, when the automobile bumps against the composite buffer guardrail plate 5, the composite buffer guardrail plate 5 deforms and absorbs the energy of the collision, meanwhile, the buffer rubber 3 deforms and absorbs the energy of the collision, and in the process, the buffer rubber 3 buffers the huge impact force of the automobile to a great extent.
Claims (4)
1. The double-layer anti-collision guardrail for the highway bridge is characterized by comprising a main upright post (1), a composite buffering guardrail plate (5) and an auxiliary upright post (6), wherein the lower end of the main upright post (1) is fixed, one side facing the highway is connected with the composite buffering guardrail plate (5), and a buffering device is arranged at the connection part of the composite buffering guardrail plate (5) and the main upright post (1); the auxiliary upright post (6) is arranged on one side of the composite buffer guardrail plate (5) facing the highway, the lower end of the auxiliary upright post (6) is fixed, and the upper end of the auxiliary upright post is connected with the main upright post (1); a buffer cylindrical steel sleeve (7) is sleeved on the auxiliary upright post (6), and a buffer layer is arranged on the outer surface of the buffer cylindrical steel sleeve (7);
the composite buffer guardrail plate (5) is an S-shaped composite buffer plate;
the buffer device is composed of buffer rubber (3), the buffer rubber (3) is arranged at the trough of the composite buffer guardrail plate (5), the buffer rubber (3), the composite buffer guardrail plate (5) and the main upright post (1) are connected through connecting bolts (2), and after the buffer rubber (3), the composite buffer guardrail plate (5) and the main upright post (1) are connected through the connecting bolts (2), buffer intervals are reserved between the peaks of the composite buffer guardrail plate (5) and the main upright post (1);
the auxiliary upright post (6) is in clearance fit with the buffer cylindrical steel sleeve (7);
the composite buffering guardrail plate (5) sequentially comprises an inner layer buffering plate body, a middle layer buffering plate body and an outer layer buffering plate body, wherein the inner layer buffering plate body, the middle layer buffering plate body and the outer layer buffering plate body are adhered to each other;
the connecting bolt (2) is also sleeved with a steel gasket (4), the steel gasket (4) is arranged between the buffer rubber (3) and the composite buffer guardrail plate (5), one end of the steel gasket (4) is contacted with the composite buffer guardrail plate (5), and the other end is contacted with the buffer rubber (3);
the buffer layer is a striated buffer rubber (8), interference fit is arranged between the striated buffer rubber (8) and the buffer cylinder steel sleeve (7), and a cross pattern is formed on the outer surface of the striated buffer rubber (8).
2. The double-layer crash barrier for a highway bridge according to claim 1, wherein the inner layer buffer plate body, the middle layer buffer plate body and the outer layer buffer plate body are net structures formed by compounding Kevlar fibers and resin.
3. The double-layer anti-collision guardrail of the highway bridge according to claim 1, wherein a supporting device (9) for supporting and positioning the lower end of the buffer cylindrical steel sleeve (7) is arranged at the lower part of the auxiliary upright post (6), the supporting device (9) is of a sheet-shaped circular ring structure, is sleeved on the auxiliary upright post (6) and is fixedly connected with the auxiliary upright post (6), and the lower end face of the buffer cylindrical steel sleeve (7) is in contact with the upper surface of the supporting device (9).
4. A method for using a highway bridge based on the highway bridge double-layer anti-collision guardrail according to any one of claims 1 to 3, characterized in that when an automobile collides with the highway bridge double-layer anti-collision guardrail, the buffer cylindrical steel sleeve (7) rotates around the auxiliary upright post (6) and absorbs collision energy, and in the process of rotating the buffer cylindrical steel sleeve (7) around the auxiliary upright post (6), the buffer cylindrical steel sleeve (7) guides the automobile, corrects the driving direction of the automobile, and enables the automobile to drive forwards along a highway, and meanwhile, the buffer layer on the outer surface of the buffer cylindrical steel sleeve (7) deforms and absorbs collision energy;
when the automobile collides with the auxiliary upright post (6), the automobile collides with the composite buffer guardrail plate (5), and when the automobile collides with the composite buffer guardrail plate (5), the composite buffer guardrail plate (5) deforms and absorbs the energy of collision, and meanwhile, the buffer device deforms and absorbs the energy of collision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068504.5A CN108166389B (en) | 2018-01-24 | 2018-01-24 | Double-layer anti-collision guardrail for highway bridge and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810068504.5A CN108166389B (en) | 2018-01-24 | 2018-01-24 | Double-layer anti-collision guardrail for highway bridge and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108166389A CN108166389A (en) | 2018-06-15 |
| CN108166389B true CN108166389B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810068504.5A Active CN108166389B (en) | 2018-01-24 | 2018-01-24 | Double-layer anti-collision guardrail for highway bridge and use method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108166389B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356027B (en) * | 2018-11-28 | 2020-05-22 | 宁夏嘉惠道路资源再生利用有限公司 | Road bridge long-connection type anti-collision guardrail and mounting method thereof |
| CN111636337A (en) * | 2020-06-11 | 2020-09-08 | 广西西创自动化有限公司 | High-strength stainless steel highway guardrail |
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| RU85494U1 (en) * | 2009-05-19 | 2009-08-10 | Открытое акционерное общество "Кыштымское машиностроительное объединение" | ROAD BARRIER FENCE |
| CN201339168Y (en) * | 2008-12-30 | 2009-11-04 | 天津市博安塑胶制品有限公司 | Highway guardrail |
| CN102900036A (en) * | 2012-11-02 | 2013-01-30 | 卞乐平 | Buffering anti-collision guardrail on expressway |
| CN204491461U (en) * | 2015-02-06 | 2015-07-22 | 青海云海环保服务有限公司 | One utilizes electronic waste plastics to make speedway cushion bumper guardrail |
| CN107401132A (en) * | 2017-09-13 | 2017-11-28 | 沈阳建筑大学 | Novel rotary anticollision tub highway crash cushion guardail |
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| CN207862768U (en) * | 2018-01-24 | 2018-09-14 | 长安大学 | A kind of bridge on highway bilayer anticollision barrier |
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2018
- 2018-01-24 CN CN201810068504.5A patent/CN108166389B/en active Active
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| CN201339168Y (en) * | 2008-12-30 | 2009-11-04 | 天津市博安塑胶制品有限公司 | Highway guardrail |
| RU85494U1 (en) * | 2009-05-19 | 2009-08-10 | Открытое акционерное общество "Кыштымское машиностроительное объединение" | ROAD BARRIER FENCE |
| CN102900036A (en) * | 2012-11-02 | 2013-01-30 | 卞乐平 | Buffering anti-collision guardrail on expressway |
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| CN206859133U (en) * | 2017-06-28 | 2018-01-09 | 多吉泽仁 | A kind of hill path guard rail |
| CN107401132A (en) * | 2017-09-13 | 2017-11-28 | 沈阳建筑大学 | Novel rotary anticollision tub highway crash cushion guardail |
| CN207862768U (en) * | 2018-01-24 | 2018-09-14 | 长安大学 | A kind of bridge on highway bilayer anticollision barrier |
Non-Patent Citations (1)
| Title |
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| 张金升等.《交通新材料》.2014,第326-327页. * |
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| CN108166389A (en) | 2018-06-15 |
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