CN203420244U - Flexible road guardrail with double-layer vertically-placed energy-absorbing elements - Google Patents
Flexible road guardrail with double-layer vertically-placed energy-absorbing elements Download PDFInfo
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- CN203420244U CN203420244U CN201320434937.0U CN201320434937U CN203420244U CN 203420244 U CN203420244 U CN 203420244U CN 201320434937 U CN201320434937 U CN 201320434937U CN 203420244 U CN203420244 U CN 203420244U
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- absorbing
- guardrail
- power
- installing plate
- guardrail steel
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Abstract
The utility model discloses a flexible road guardrail with double-layer vertically-placed energy-absorbing elements. The flexible road guardrail comprises a rigid stand column and a guardrail steel plate, the guardrail steel plate is a three-beam guardrail steel plate, two energy-absorbing element anti-stopping blocks are arranged between the rigid stand column and the three-beam guardrail steel plate, and the energy-absorbing element anti-stopping blocks are two annular rubber rings parallel to each other. The flexible road guardrail with the double-layer vertically-placed energy-absorbing elements has the advantages that the anti-stopping blocks of the double-layer vertically-placed rubber energy-absorbing elements have good flexibility, and when a vehicle of a certain quality impacts the highroad guardrail at a certain speed and a certain impact angle, the anti-stopping blocks can absorb the impact kinetic energy of the vehicle greatly and have good rebound capacity.
Description
Technical field
The utility model relates to a kind of highway barrier, relates in particular to a kind of flexible highway barrier that bilayer is placed power-absorbing vertically that has.
Background technology
In speedway both sides and central authorities, in order to prevent that operational vehicle from going out outside road, place, design and installation highway barrier.Along with speedway, city intersection, elevated road etc. are a large amount of, build, transportation network is increasingly intensive, and the automobile pollution in the whole world increases year by year by a relatively large margin, the incidence of traffic accident is ascendant trend year by year, according to data statistics, can find on every 200 meters of speedways, approximately have the Vehicular impact guardrail event of 250 times every year on average, and this class event is 3 times more than of other type traffic accident on expressway, because of the too hard accident creating greater casualties of guardrail quite a few.
Existing highway protection is mainly rigid concrete guardrail, semi-rigid corrugated guardrail and flexible cable guardrail, on speedway, semi-rigid corrugated guardrail application at most, from guard bar structure itself and security performance, concrete guardrail wall face-type structural can effectively contain that dilly gets out guardrail and substantially can prevent that large heavy vehicle from running off guardrail, can reduce the probability that major traffic accidents occur, but, because concrete is done the used time and deformation occurred seldom bearing external load, therefore the kinetic energy of the vehicle being absorbed by guardrail in collision process seldom, the dynamic shearing power that collision vehicle is subject to is very large, very easily cause that car can not effectively tackle, cable guardrail is due to less with the contact area of vehicle in knockout process, the finite energy absorbing, only the shock of car is had to reasonable interception and guide effect, often be applied to tourist attractions guardrail or compact car special lane guardrail, in sum, there is following shortcoming in existing highway barrier: concrete guardrail is too hard, may cause vehicle angle of rebound excessive, causes follow-up chain traffic accident, the hard sheet material of semi-rigid corrugated guardrail, when breaking vehicle, also likely causes larger injures and deaths to occupant, and that the actual effect of flexible rope guardrail still has is to be tested.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly can effectively reduces shock kinetic energy, realizes the flexible highway barrier that bilayer is placed power-absorbing vertically that has of good collision buffering effect.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of have a flexible highway barrier that bilayer is placed power-absorbing vertically, comprise rigid posts and guardrail steel plate, described guardrail steel plate is three corrugated guardrail steel plates, between described rigid posts and three corrugated guardrail steel plates, be provided with two power-absorbing obstruction blocks, described power-absorbing obstruction block is two annular rubber circles that are parallel to each other, described power-absorbing obstruction block one end is fixed in rigid posts by the first installing plate, the described power-absorbing obstruction block other end is fixed on three corrugated guardrail steel plates by the second installing plate.
The first described installing plate comprises first collar and both sides installation portion, power-absorbing obstruction block one end is positioned at first collar, the both sides installation portion of the first installing plate and the curved profile on rigid posts surface fit, the second described installing plate comprises second collar and both sides installation portion, the described power-absorbing obstruction block other end is positioned at second collar, the both sides installation portion of the second installing plate and the laminating of three corrugated guardrail steel plates.
Three described corrugated guardrail steel plates have towards three crests of highway and two troughs towards column, and two described annular rubber circles are separately positioned on two troughs of three corrugated guardrail steel plates.
The both sides installation portion of the first described installing plate is fixed on column by the first screw, and the first described screw runs through described column, and the both sides installation portion of the second described installing plate is fixed on three corrugated guardrail steel plates by the second screw.
Compared with prior art, the utility model has the advantage of: the obstruction block that bilayer is placed rubber ring power-absorbing vertically has good flexibility, when certain mass vehicle clashes into freeway guardrail with certain speed and angle of impingement, this obstruction block can absorb the shock kinetic energy of vehicle largely, and there is good resilience, through LS-DYNA analysis of finite element by numerical simulation, find: if vehicle is with 80km/h speed, when 45 degree angle of impingement are clashed into guardrail, this design can absorb Vehicular impact kinetic energy and approximately reach 46.3%, and existing double wave shape Guardrail design structure only absorbs Vehicular impact kinetic energy only approximately 30%.
Bilayer is placed rubber ring power-absorbing obstruction block vertically and can be stoped three corrugated sheet steels that larger distortion occurs by self resilient characteristic, plays the effect of buffering and good absorption vehicle impact kinetic energy.
This Guardrail design can effectively be realized following two conditions: three corrugated sheet steels have good intensity (not exclusively destroying) on the one hand, can effectively stop vehicle and sweep away roadbed or cross guardrail; Double-deckly on the other hand place rubber ring power-absorbing obstruction block vertically and there is good buffering and energy absorption capability, in the process of blocking, by larger distortion, absorb a certain amount of vehicle energy, make to clash into cause vehicle screen resilience is directed to normal traffic direction by vehicle with smaller angle, from shock dynamics angle, under given vehicle momentum and projected angle of impact, the double-deck novel flexible guardrail of placing rubber ring power-absorbing obstruction block vertically of this introduction can effectively be brought into play and block and rebound effect.
Accompanying drawing explanation
Fig. 1 is one-sided guardrail front view of the present utility model;
Fig. 2 is one-sided guardrail top view of the present utility model;
Fig. 3 is central guardrail front view of the present utility model;
Fig. 4 is central guardrail top view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
A kind of have a flexible highway barrier that bilayer is placed power-absorbing vertically, comprise rigid posts 1 and guardrail steel plate, guardrail steel plate is three corrugated guardrail steel plates 2, between rigid posts 1 and three corrugated guardrail steel plates 2, be provided with two power-absorbing obstruction blocks 3, power-absorbing obstruction block 3 is two annular rubber circles that are parallel to each other, power-absorbing obstruction block 3 one end are fixed in rigid posts by the first installing plate 4, and power-absorbing obstruction block 3 other ends are fixed on three corrugated guardrail steel plates 2 by the second installing plate 5.
The first installing plate 4 comprises first collar and both sides installation portion, power-absorbing obstruction block 3 one end are positioned at first collar, the curved profile on the both sides installation portion of the first installing plate 4 and rigid posts 1 surface fits, the second installing plate 5 comprises second collar and both sides installation portion, power-absorbing obstruction block 3 other ends are positioned at second collar, the both sides installation portion of the second installing plate 5 and three corrugated guardrail steel plate 2 laminatings.
Three corrugated guardrail steel plates 2 have towards three crests of highway and two troughs towards column, and two annular rubber circles are separately positioned on two troughs of three corrugated guardrail steel plates 2.
The both sides installation portion of the first installing plate 4 is fixed on column by the first screw 7, and the first screw 7 runs through described column 1, and the both sides installation portion of the second described installing plate 5 is fixed on three corrugated guardrail steel plates 2 by the second screw 6.
Claims (4)
1. one kind has the flexible highway barrier that bilayer is placed power-absorbing vertically, it is characterized in that comprising rigid posts and guardrail steel plate, described guardrail steel plate is three corrugated guardrail steel plates, between described rigid posts and three corrugated guardrail steel plates, be provided with two power-absorbing obstruction blocks, described power-absorbing obstruction block is two annular rubber circles that are parallel to each other, described power-absorbing obstruction block one end is fixed in rigid posts by the first installing plate, and the described power-absorbing obstruction block other end is fixed on three corrugated guardrail steel plates by the second installing plate.
2. a kind of flexible highway barrier that bilayer is placed power-absorbing vertically that has according to claim 1, it is characterized in that the first described installing plate comprises first collar and both sides installation portion, power-absorbing obstruction block one end is positioned at first collar, the both sides installation portion of the first installing plate and the curved profile on rigid posts surface fit, the second described installing plate comprises second collar and both sides installation portion, the described power-absorbing obstruction block other end is positioned at second collar, the both sides installation portion of the second installing plate and the laminating of three corrugated guardrail steel plates.
3. a kind of flexible highway barrier that bilayer is placed power-absorbing vertically that has according to claim 1, it is characterized in that three described corrugated guardrail steel plates have towards three crests of highway and two troughs towards column, two described annular rubber circles are separately positioned on two troughs of three corrugated guardrail steel plates.
4. a kind of flexible highway barrier that bilayer is placed power-absorbing vertically that has according to claim 2, the both sides installation portion that it is characterized in that the first described installing plate is fixed on column by the first screw, the first described screw runs through described column, and the both sides installation portion of the second described installing plate is fixed on three corrugated guardrail steel plates by the second screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434937.0U CN203420244U (en) | 2013-07-18 | 2013-07-18 | Flexible road guardrail with double-layer vertically-placed energy-absorbing elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434937.0U CN203420244U (en) | 2013-07-18 | 2013-07-18 | Flexible road guardrail with double-layer vertically-placed energy-absorbing elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420244U true CN203420244U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320434937.0U Expired - Fee Related CN203420244U (en) | 2013-07-18 | 2013-07-18 | Flexible road guardrail with double-layer vertically-placed energy-absorbing elements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442278A (en) * | 2018-06-19 | 2018-08-24 | 上海布克林金属防腐有限公司 | A kind of road energy-absorbing protective device |
-
2013
- 2013-07-18 CN CN201320434937.0U patent/CN203420244U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442278A (en) * | 2018-06-19 | 2018-08-24 | 上海布克林金属防腐有限公司 | A kind of road energy-absorbing protective device |
| CN108442278B (en) * | 2018-06-19 | 2023-12-08 | 上海布克林金属防腐有限公司 | Energy-absorbing protection device for road |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |