CN103498435A - Road guardrail made of ultra-high molecular weight polyethylene carbon fiber composite - Google Patents
Road guardrail made of ultra-high molecular weight polyethylene carbon fiber composite Download PDFInfo
- Publication number
- CN103498435A CN103498435A CN201310503490.2A CN201310503490A CN103498435A CN 103498435 A CN103498435 A CN 103498435A CN 201310503490 A CN201310503490 A CN 201310503490A CN 103498435 A CN103498435 A CN 103498435A
- Authority
- CN
- China
- Prior art keywords
- molecular weight
- energy
- ultra
- weight polyethylene
- high molecular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a road guardrail made of an ultra-high molecular weight polyethylene carbon fiber composite. The road guardrail is mainly used for safety protection of the sides of a road. The road guardrail is composed of a stand column, a hoop, a guardrail plate, an energy-absorbing lining plate and bolts. The hoop is arranged on the stand column in an embracing mode. The stand column is connected to the center position of the energy-absorbing lining plate through the bolts. The two ends of the guardrail plate are respectively provided with a plurality of bolt holes. The two ends of the energy-absorbing lining plate are respectively provided with a plurality of bolt holes. The guardrail plate is connected to the two ends of the energy-absorbing lining plate through the bolts. The guardrail plate and the energy-absorbing lining plate are made of the ultra-high molecular weight polyethylene carbon fiber composite. The ultra-high molecular weight polyethylene carbon fiber composite is formed in the mode that ultra-high molecular weight polyethylene serves as a substrate, and carbon fibers are added to the substrate in a mixed mode. Application proves that when action force of an automobile body acts on the guardrail plate, through the good energy absorption effect and the good impact resistance of the ultra-high molecular weight polyethylene carbon fiber composite of the guardrail plate and the lining plate which is connected, the action force of the automobile body is converted into potential energy and internal energy, the impact force is released, so that the energy dissipation effect and the energy absorption effect are achieved, and therefore the safety of a traffic tool, passengers and a driver is protected.
Description
Technical field
The present invention relates to a kind of ultra-high molecular weight polyethylene carbon fibre composite highway barrier, be mainly used in the security protection of highway drive test, belong to highway safety protective equipment field.
Background technology
Tradition highway corrugated guardrail is comprised of column and Q235 carbon steel corrugated guardrail plate, be limited to structure and material, the shortcoming that is difficult to overcome below tradition highway corrugated guardrail exists: when (1) automobile and traditional highway barrier bump, because the distortion relaxation time of guardrail steel plate is shorter, acceleration is larger, larger to vehicle and passenger's impact injury; (2) traditional highway breast board heaviness, produce, transport, install all inconvenient; (3) the easy corrosion of traditional highway barrier, the zinc-plated expense of guardrail is higher, and maintenance and maintenance workload are large; (4) mainly to adopt the galvanizing by dipping technology to carry out anticorrosion for traditional highway barrier, and environment pollution is serious.
Simultaneously, adopt superhigh molecular weight polyethylene material to manufacture highway barrier, cohesiveness is poor, creep is obvious, and impact strength deficiency, be difficult to separately as the highway barrier materials'use, as application number is: 200510117288.1, name is called " a kind of ultra-high molecular weight polyethylene highway barrier material and manufacture method thereof ".Although adopt carbon fibre material excellent in cushion effect, there is cohesiveness and creep resistance preferably, fatigue durability and toughness are not good, and expensive.
Summary of the invention
The object of the invention is to overcome the deficiency of existing highway guardrail, a kind of ultra-high molecular weight polyethylene carbon fibre composite highway barrier is provided, it is strong that this highway barrier has impact resistance, weight is relatively light, sight line inducing is strong, safe and reliable, stability is high, and energy-conserving and environment-protective effectively reduce road traffic accident casualties and property loss.
Ultra-high molecular weight polyethylene carbon fibre composite highway barrier purpose of the present invention completes by lower array structure: highway barrier is by column (4), anchor ear (5), guardrail board (1), energy-absorbing liner plate (3), bolt (6) forms, anchor ear (5) obvolvent is on column (4), column (4) is connected on the center of energy-absorbing liner plate (3) by bolt (6), guardrail board (1) two ends arrange respectively some bolts hole (2), energy-absorbing liner plate (3) two ends arrange respectively some bolts hole (2), guardrail board (1) is connected in energy-absorbing liner plate (3) two ends by bolt (6).
Described energy-absorbing liner plate (3) is Ω shape or convex; Described guardrail board 1 is arc.
Described guardrail board (1) and energy-absorbing liner plate (3) adopt the ultra-high molecular weight polyethylene carbon fibre composite to make, and this ultra-high molecular weight polyethylene carbon fibre composite, is mixed and adds carbon fiber as matrix by superhigh molecular weight polyethylene material in matrix.
In described ultra-high molecular weight polyethylene carbon fibre composite, the component of ultra-high molecular weight polyethylene and carbon fiber is: molecular weight is that the ultra-high molecular weight polyethylene percent by volume more than 2,500,000 is 50%～80%, carbon fiber volume percentage is 20%～50%.
Operating principle: in body of a motor car collision highway barrier during the guardrail board position; energy-absorbing effect and shock resistance by guardrail board 1 and connecting lining plate 3 self ultra-high molecular weight polyethylene carbon fibre composite excellence; by the part impact force power conversion of vehicle body force position, be potential energy and interior energy; allow impact force partly be discharged; thereby play good energy dissipating energy-absorbing effect, reach the goal of the invention of protection automobile and occupant safety.
The present invention has low energy consumption, the low pollution, cohesiveness and creep resistance are good, toughness is strong, have high-tensile, high elongation at tear concurrently, have good energy-absorbing effect and high deformation relaxation performance, strong, the safe and reliable novel road guardrail of sight line inducing has Great significance and economic worth.
The accompanying drawing explanation
Fig. 1 is the arc guardrail board top view of ultra-high molecular weight polyethylene carbon fibre composite of the present invention.
The A-A directional profile figure that Fig. 2 is the arc guardrail board of ultra-high molecular weight polyethylene carbon fibre composite shown in Fig. 1.
The top view that Fig. 3 is ultra-high molecular weight polyethylene carbon fibre composite energy-absorbing liner plate of the present invention.
Fig. 4 is the energy-absorbing of ultra-high molecular weight polyethylene carbon fibre composite shown in Fig. 3 liner plate B-B directional profile figure.
Fig. 5 is that ultra-high molecular weight polyethylene carbon fibre composite highway barrier of the present invention is used view.
The energy tendency chart that Fig. 6 is common (tradition) carbon steel corrugated guardrail.
The energy tendency chart that Fig. 7 is the composite material bow-shaped guardrail of the present invention.
In figure, 1 is guardrail board, and 2 is screwed hole, and 3 is the energy-absorbing liner plate, and 4 is column, and 5 is that anchor ear, 6 is bolt.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Form supra polymer ultra-high molecular weight polyethylene carbon fibre composite highway barrier by column, anchor ear, guardrail board, energy-absorbing liner plate, bolt, wherein the anchor ear obvolvent is on column, column is bolted on the center of energy-absorbing liner plate, the guardrail board two ends arrange respectively some bolts hole, energy-absorbing liner plate two ends arrange respectively some bolts hole, and guardrail board is bolted in energy-absorbing liner plate two ends.
Described guardrail board and energy-absorbing liner plate all adopt the ultra-high molecular weight polyethylene carbon fibre composite to make, and described energy-absorbing liner plate (3) is convex.This ultra-high molecular weight polyethylene carbon fibre composite, is mixed and adds carbon fiber as matrix by superhigh molecular weight polyethylene material in matrix.
In described ultra-high molecular weight polyethylene carbon fibre composite, the component of ultra-high molecular weight polyethylene and carbon fiber is: molecular weight is that the ultra-high molecular weight polyethylene percent by volume more than 2,500,000 is 50%～80%, carbon fiber volume percentage is 20%～50%.
embodiment 1:
As shown in Figure 5, comprise that column 4, anchor ear 5, arc guardrail board 1, energy-absorbing liner plate 3, bolt 6 form supra polymer ultra-high molecular weight polyethylene carbon fibre composite highway barrier, anchor ear 5 obvolvents are on column 4, column 4 is connected on the center of energy-absorbing liner plate 3 by bolt 6, arc guardrail board 1 two ends arrange respectively six bolts hole 2, energy-absorbing liner plate 3 two ends arrange respectively 2, two arc guardrail board 1 of six bolts hole and are connected in energy-absorbing liner plate 3 two ends by bolt 6.
Above-mentioned arc guardrail board 1 and energy-absorbing liner plate 3 all adopt the ultra-high molecular weight polyethylene carbon fibre composite to make, this ultra-high molecular weight polyethylene carbon fibre composite by superhigh molecular weight polyethylene material as matrix, mix in matrix and add carbon fiber, the component of ultra-high molecular weight polyethylene and carbon fiber is: molecular weight is that the ultra-high molecular weight polyethylene percent by volume more than 2,500,000 is 50%, carbon fiber volume percentage is 50%.
Arc guardrail board 1 length is 200 centimetres, and width is 31 centimetres, and maximum height is 15 centimetres; In order to make to connect closely between two arc guardrail board 1, and can play good energy dissipating cushioning effect, the energy-absorbing liner plate 3 that connects use is made into to Ω shape.
embodiment 2:
Supra polymer ultra-high molecular weight polyethylene carbon fibre composite highway barrier, substantially the same manner as Example 1, difference is, arc guardrail board 1 two ends arrange respectively four bolts hole 2, energy-absorbing liner plate 3 two ends arrange respectively four bolts hole 2, arc guardrail board 1 and energy-absorbing liner plate 3 adopt the ultra-high molecular weight polyethylene carbon fibre composite to make, this ultra-high molecular weight polyethylene carbon fibre composite by superhigh molecular weight polyethylene material as matrix, mix in matrix and add carbon fiber, the component of ultra-high molecular weight polyethylene and carbon fiber is: molecular weight is that the ultra-high molecular weight polyethylene percent by volume more than 2,500,000 is 80%, carbon fiber volume percentage is 20%.
embodiment 3:
Supra polymer ultra-high molecular weight polyethylene carbon fibre composite highway barrier, substantially the same manner as Example 1, difference is, arc guardrail board 1 two ends arrange respectively eight bolts hole 2, energy-absorbing liner plate 3 two ends arrange respectively eight bolts hole 2, arc guardrail board 1 and energy-absorbing liner plate 3 adopt the ultra-high molecular weight polyethylene carbon fibre composite to make, this ultra-high molecular weight polyethylene carbon fibre composite by superhigh molecular weight polyethylene material as matrix, mix in matrix and add carbon fiber, the component of ultra-high molecular weight polyethylene and carbon fiber is: molecular weight is that the ultra-high molecular weight polyethylene percent by volume more than 2,500,000 is 70%, carbon fiber volume percentage is 30%.
According to " freeway guardrail security performance evaluation criterion " (JTG/T F83-01-2004) impact conditions, with 1.5 tons of kerb weight pony cars, 100 kilometers/hour, 20 ° of collision angles carry out crash tests to traditional highway Q235 carbon steel corrugated beam barrier and ultra-high molecular weight polyethylene carbon fibre composite bow beam guardrail board of the present invention respectively and draw following several main energy tendency chart, see Fig. 6 and Fig. 7.
Due to the impact conditions uniformity, from Fig. 6 and Fig. 7, initial total energy is the kinetic energy of 5.74e+8 while all deriving from vehicle collision, after collision starts, due to elastoplasticity speciality and the elongation restriction of carbon steel, two stages have obviously been experienced in the decay of kinetic energy as seen from Figure 6:
collision 0-0.227 second is elastic deformation,
0.227 be plastic deformation after second, after entering plastic deformation, anti-impact force and energy-absorbing effect weaken; But elasticoviscous property speciality and high elongation due to composite material.The decay of kinetic energy remains mild property and continuation preferably as seen from Figure 7, the flex point of carbon steel do not occur.
Shock resistance and energy-absorbing effect are as following table:
As seen from table, before 0.227s, carbon steel belongs to elastic deformation, and conversion effect and the composite material of interior energy are suitable, but, due to the characteristic of composite material, has absorbed more sliding interface energy, so the consumption rate carbon steel material of kinetic energy is more; 0.227-0.357s between carbon steel enter plastic deformation, shock resistance, energy-absorbing effect obviously weaken, and cause kinetic energy consumption to reduce, and composite material is better than carbon steel material in the absorption of interior energy conversion and sliding interface energy, make kinetic energy obtain continuing to consume, tended to be steady when 0.357s; 0.357s after, the composite material energy variation is little, and carbon steel material also has certain variation, but does not reach many that composite material consumes in the consumption of kinetic energy, and this mainly has benefited from the consumption of composite material on the sliding interface energy; Finally, due to the elasticoviscous property speciality of composite material and higher tensile strength, in knock-on displacement deformation, than carbon steel material, reduced by 1/5 deformational displacement.
Traditional road waved guardrail mainly adopts the manufacture of Q235 carbon steel, and its density is 7.85g/cm
3, yield strength is 235MPa, and modulus of elasticity is 200GPa, and tensile strength is about 370MPa, and elongation at break is in 22 left and right.
Ultra-high molecular weight polyethylene carbon fibre composite highway barrier density range of the present invention is: 1.12～1.24g/cm
3, tensile strength reaches 4053MPa, and modulus of elasticity is 210GPa, and the fracture elongation scope is: 50%～150%.
With other composite materials, compare, it is stronger that the present invention has impact resistance as highway barrier, and energy-absorbing effect is better, and resistance to chemical attack, and environmental protection can reuse, and after large-scale production, its cost is suitable with traditional corrugated guardrail price.
Claims (4)
1. a ultra-high molecular weight polyethylene carbon fibre composite highway barrier, it is characterized in that: highway barrier is comprised of column (4), anchor ear (5), guardrail board (1), energy-absorbing liner plate (3), bolt (6), anchor ear (5) obvolvent is on column (4), column (4) is connected on the center of energy-absorbing liner plate (3) by bolt (6), guardrail board (1) two ends arrange respectively some bolts hole (2), energy-absorbing liner plate (3) two ends arrange respectively some bolts hole (2), and guardrail board (1) is connected in energy-absorbing liner plate (3) two ends by bolt (6).
2. ultra-high molecular weight polyethylene carbon fibre composite highway barrier according to claim 1, it is characterized in that: described energy-absorbing liner plate (3) is Ω shape, convex; Described guardrail board 1 is arc.
3. ultra-high molecular weight polyethylene carbon fibre composite highway barrier according to claim 1 and 2, it is characterized in that: described guardrail board (1) and energy-absorbing liner plate (3) adopt the ultra-high molecular weight polyethylene carbon fibre composite to make, this ultra-high molecular weight polyethylene carbon fibre composite, is mixed and adds carbon fiber as matrix by superhigh molecular weight polyethylene material in matrix.
4. ultra-high molecular weight polyethylene carbon fibre composite highway barrier according to claim 3, it is characterized in that: in described ultra-high molecular weight polyethylene carbon fibre composite, the component of ultra-high molecular weight polyethylene and carbon fiber is: molecular weight is that the ultra-high molecular weight polyethylene percent by volume more than 2,500,000 is 50%～80%, carbon fiber volume percentage is 20%～50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503490.2A CN103498435B (en) | 2013-10-23 | 2013-10-23 | A kind of road guardrail made of ultra-high molecular weight polyethylene carbon fiber composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310503490.2A CN103498435B (en) | 2013-10-23 | 2013-10-23 | A kind of road guardrail made of ultra-high molecular weight polyethylene carbon fiber composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103498435A true CN103498435A (en) | 2014-01-08 |
| CN103498435B CN103498435B (en) | 2016-02-10 |
Family
ID=49863685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310503490.2A Expired - Fee Related CN103498435B (en) | 2013-10-23 | 2013-10-23 | A kind of road guardrail made of ultra-high molecular weight polyethylene carbon fiber composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498435B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965437A (en) * | 2017-12-28 | 2019-07-05 | 洛阳尖端技术研究院 | A kind of helmet and its preparation method and application |
| CN110042786A (en) * | 2019-04-25 | 2019-07-23 | 张卫兵 | Composite material backplate for road guard |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1654745A (en) * | 2005-03-11 | 2005-08-17 | 江苏双良复合材料有限公司 | Road guard-rail made of composite material |
| JP2007031986A (en) * | 2005-07-25 | 2007-02-08 | Satoru Minamihata | Safety guard rail |
| CN1958274A (en) * | 2005-11-03 | 2007-05-09 | 肖久梅 | Material of polyethylene in super high molecular weight for obstruction guard of highway, and fabricating method |
| JP4095880B2 (en) * | 2002-10-31 | 2008-06-04 | 日鐵住金建材株式会社 | Guard fence with wooden beam |
| CN202073058U (en) * | 2011-04-15 | 2011-12-14 | 蔡文学 | Small upright column device for expressway guard rail |
| JP2013053516A (en) * | 2012-10-18 | 2013-03-21 | Katsunori Toyoshima | Guard rail |
-
2013
- 2013-10-23 CN CN201310503490.2A patent/CN103498435B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4095880B2 (en) * | 2002-10-31 | 2008-06-04 | 日鐵住金建材株式会社 | Guard fence with wooden beam |
| CN1654745A (en) * | 2005-03-11 | 2005-08-17 | 江苏双良复合材料有限公司 | Road guard-rail made of composite material |
| JP2007031986A (en) * | 2005-07-25 | 2007-02-08 | Satoru Minamihata | Safety guard rail |
| CN1958274A (en) * | 2005-11-03 | 2007-05-09 | 肖久梅 | Material of polyethylene in super high molecular weight for obstruction guard of highway, and fabricating method |
| CN202073058U (en) * | 2011-04-15 | 2011-12-14 | 蔡文学 | Small upright column device for expressway guard rail |
| JP2013053516A (en) * | 2012-10-18 | 2013-03-21 | Katsunori Toyoshima | Guard rail |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965437A (en) * | 2017-12-28 | 2019-07-05 | 洛阳尖端技术研究院 | A kind of helmet and its preparation method and application |
| CN110042786A (en) * | 2019-04-25 | 2019-07-23 | 张卫兵 | Composite material backplate for road guard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103498435B (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102900036A (en) | Buffering anti-collision guardrail on expressway | |
| CN107653804A (en) | Energy-absorbing buffering Anti-collision barrel for road traffic | |
| CN202000278U (en) | Buffer collision-proof plate for highways | |
| CN202913379U (en) | Expressway buffering anti-collision guardrail | |
| CN103498435B (en) | A kind of road guardrail made of ultra-high molecular weight polyethylene carbon fiber composite | |
| CN110374032B (en) | Easily resume formula prevents that car hits device and prevents car and hits bridge | |
| CN207862768U (en) | A kind of bridge on highway bilayer anticollision barrier | |
| CN201334648Y (en) | Mini-type rotary anti-collision barrel group sliding guardrail device | |
| CN203977335U (en) | A kind of ultra-high molecular weight polyethylene carbon fibre composite highway barrier | |
| CN106740611A (en) | A kind of automobile front bumper device | |
| CN209836869U (en) | Road protection device for expressway | |
| CN108166389B (en) | Double-layer anti-collision guardrail for highway bridge and use method thereof | |
| CN104563021B (en) | Kinetic energy attenuation device and general classified highway fence using same | |
| CN108004983B (en) | A kind of flexible guardrail | |
| CN209873640U (en) | Environment-friendly highway crash barrier | |
| CN202073058U (en) | Small upright column device for expressway guard rail | |
| CN204475231U (en) | Safety guard fence for super highway | |
| CN207749448U (en) | A kind of efficient anticollision barrier | |
| CN114085490A (en) | Reinforced compression-resistant anti-collision highway guardrail plate material | |
| CN106740621A (en) | A kind of automobile energy-absorbing device | |
| CN208105141U (en) | A kind of highway automobile anti-collision protective device | |
| CN203603092U (en) | Special aluminum alloy wave-shaped protection guard | |
| CN202466474U (en) | Highway guardrail plate | |
| CN205801255U (en) | A kind of anti-collision automobile side wall structure | |
| CN211446717U (en) | Fiber composite material guardrail for expressway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160210 Termination date: 20211023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |