CN115323960A - Urban traffic protective guard - Google Patents
Urban traffic protective guard Download PDFInfo
- Publication number
- CN115323960A CN115323960A CN202210812271.1A CN202210812271A CN115323960A CN 115323960 A CN115323960 A CN 115323960A CN 202210812271 A CN202210812271 A CN 202210812271A CN 115323960 A CN115323960 A CN 115323960A
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- China
- Prior art keywords
- bamboo
- protective guard
- guard rail
- urban traffic
- woven
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- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 72
- 239000011425 bamboo Substances 0.000 claims abstract description 123
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 122
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 122
- 241001330002 Bambuseae Species 0.000 claims abstract description 122
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 122
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 239000002023 wood Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 13
- 238000009941 weaving Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 206010039203 Road traffic accident Diseases 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- 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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0453—Rails of materials other than metal or concrete, e.g. wood, plastics; Rails of different materials, e.g. rubber-faced metal profiles, concrete-filled steel tubes
-
- 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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses an urban traffic protective guard, which comprises protective guard posts arranged at intervals, a protective guard body connected between the protective guard posts and a negative Poisson ratio structure, wherein the protective guard body comprises a plurality of protective guard posts; the protective guard stand column comprises a base and a stand column welded and connected to the top of the base; the base is fixedly arranged on the ground through foundation bolts; the protective fence body is woven by bamboo wood; one end of the negative Poisson ratio structure is nested at the end part of the protective guard body and is fixedly connected with the protective guard body, and the other end of the negative Poisson ratio structure is nested in the upright post and is connected with the upright post in an adhesive manner through an adhesive. The urban traffic protective guard has the advantages of high-efficiency energy absorption, low manufacturing cost and environmental protection.
Description
Technical Field
The invention relates to the technical field of urban highway safety protection, in particular to an urban traffic protective guard.
Background
With the increasing of the vehicle holding capacity, traffic accidents become more frequent, once an accident happens on an urban road with large vehicle running flow, damage which is difficult to bear is often generated, which prompts people to reduce the damage of the urban road accident as much as possible, and therefore, higher performance requirements are provided for the urban road safety protective guard. The urban highway protective guard has the advantages that the urban highway protective guard can be used as an energy absorption device to absorb energy generated by vehicle collision when a traffic accident happens, meanwhile, the vehicle is prevented from rushing to a reverse lane or non-motor lanes on two sides of a highway after the vehicle collision happens, excessive energy can be prevented from being directly transmitted to the vehicle, passengers on the vehicle and even vehicles and pedestrians in the head-on direction, an effective protection effect is achieved for the life and property safety of the vehicle passengers and the pedestrians, the accident can be effectively prevented from being expanded, and the larger traffic accident is further prevented from being caused. Therefore, the severity of the accident is directly influenced by the energy absorption performance of the protective guard. However, the guard rail structure commonly used on the urban highway is too simple, high in manufacturing cost and difficult to install, and can not effectively absorb energy generated after collision of vehicles, so that the damage to the vehicles, passengers in the vehicles and pedestrians after a traffic accident can not be effectively reduced.
Therefore, the inventor finds that the city road safety protective guard which has the advantages of high-efficiency energy absorption, low manufacturing cost and environmental protection has very important practical significance and practical value.
Disclosure of Invention
In view of the above, the invention provides an urban traffic protective guard, which has the advantages of high-efficiency energy absorption, low manufacturing cost and environmental protection, and aims to solve the problems that the existing protective guard has a weak link, namely, when a vehicle collides with a protective guard pillar, almost no energy absorption process exists, the whole energy absorption effect of the protective guard is poor, the damage degree of the vehicle after an accident occurs cannot be effectively reduced, and the urban traffic protective guard cannot be regenerated and is not environment-friendly.
The invention adopts the following specific technical scheme:
an urban traffic protective guard comprises protective guard posts arranged at intervals, a protective guard body connected between the protective guard posts and a negative Poisson ratio structure;
the guard rail stand column comprises a base and a stand column welded and connected to the top of the base; the base is fixedly arranged on the ground through foundation bolts;
the protective guard body is woven by bamboo;
one end of the negative Poisson ratio structure is nested at the end part of the protective guard body and is fixedly connected with the protective guard body, and the other end of the negative Poisson ratio structure is nested in the upright post and is connected with the upright post in an adhesion manner through an adhesive.
Furthermore, the guard rail body comprises a plurality of bamboo pipes extending along the arrangement direction of the stand columns and a modular weaving structure wound and woven on the plurality of bamboo pipes;
the bamboo pipes are arranged in parallel, and the end parts of the bamboo pipes are fixedly connected to the upright posts through the negative Poisson ratio structure;
the ends of the modular braided structure are wrapped around the posts.
Furthermore, the modular braided structure is formed by braiding a plurality of vertical bamboo boards and at least one transverse bamboo board in a criss-cross manner;
the vertical bamboo boards are arranged along the vertical direction and are woven among the bamboo pipes in a winding and penetrating mode;
the horizontal bamboo boards are arranged along the horizontal direction and woven together with the vertical bamboo boards in a staggered and penetrating mode, and one end part of each horizontal bamboo board is wound on the upright post;
the vertical bamboo boards and the transverse bamboo boards are connected at the cross points in an adhesive manner.
Further, the guard rail body comprises three bamboo tubes;
the modular braided structure is braided between two adjacent bamboo tubes;
every modular structure all includes a horizontal bamboo clapper, two the tip of horizontal bamboo clapper with the crisscross winding of stand.
Further, the base is a cast iron base; the adhesive is epoxy resin adhesive.
Has the advantages that:
(1) The urban traffic protective guard comprises protective guard posts arranged at intervals, a protective guard body connected between the protective guard posts and a negative Poisson ratio structure; the protective fence body is woven by bamboo; the protective guard pillar is connected with the protective guard body through a nested negative Poisson ratio structure and an adhesive; the negative Poisson ratio structure is made of a negative Poisson ratio material, and the negative Poisson ratio material has unique properties different from common materials, namely, the material transversely expands in an elastic range when being stretched, and the material transversely contracts when being compressed, so that after a vehicle collides with the protective guard, the negative Poisson ratio structure connecting the protective guard body and the upright post is stretched to expand, so that the upright post and the protective guard body are tightly connected together; meanwhile, the protective guard body is woven by bamboo, the bamboo has high tensile strength and toughness along the grains, and can be pulled to deform in the collision process to achieve the energy absorption effect, so that the buffer effect is achieved, and a good protection effect is achieved.
(2) The protective guard body of the urban traffic protective guard comprises a plurality of bamboo pipes extending along the arrangement direction of stand columns and a modular weaving structure which is wound and woven on the plurality of bamboo pipes; the plurality of bamboo tubes are arranged in parallel, and the end parts of the bamboo tubes are fixedly connected to the upright posts through a negative Poisson ratio structure; the end part of the modularized braided structure is wound on the upright post; because the bamboo tube of the protective guard body is exposed outside, the vehicle can see the bamboo joint integrated type with the special structure of the bamboo material in the high-speed driving process, and the bamboo tube plays a role in guiding the visual field and has distance sense, so the urban traffic protective guard can also be used in bridges, tunnels, slopes on mountains and other road conditions requiring that the vehicle cannot rush out of a road, the good impact resistance of the bamboo material can protect the vehicle from rushing out of the road after full energy absorption, and further the safety of drivers and life and property is ensured.
(3) The modular weaving structure of the urban traffic protective fence is formed by weaving a plurality of vertical bamboo boards and at least one transverse bamboo board in a criss-cross mode; the vertical bamboo boards are arranged along the vertical direction and woven among the bamboo tubes in a winding and penetrating mode; the horizontal bamboo boards are arranged along the horizontal direction and woven with the vertical bamboo boards in a staggered and interpenetrated mode, and one end part of each horizontal bamboo board is wound on the upright post; the vertical bamboo boards and the transverse bamboo boards are connected at the cross points in a bonding way; adopt above-mentioned modularization establishment structure, have the characteristics of being convenient for design, assembly.
Drawings
Fig. 1 is a schematic view of a partial three-dimensional structure of an urban traffic guard rail according to the present invention.
Fig. 2 is a front view of a portion of an urban traffic guard rail between two guard rail posts in fig. 1;
fig. 3 is a top view of a portion of the urban traffic guard rail of fig. 2;
fig. 4 is a sectional view of a connection structure between a guard rail post and a guard rail body of the urban traffic guard rail in fig. 1.
Wherein, 1-protective fence column, 2-protective fence body, 3-negative Poisson ratio structure, 4-base, 5-upright column, 6-bamboo tube, 7-vertical bamboo board, 8-horizontal bamboo board
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
An embodiment of the present invention provides an urban traffic guard rail, as shown in fig. 1 and fig. 2, the urban traffic guard rail includes guard rail posts 1 arranged at intervals, a guard rail body 2 connected between the guard rail posts 1, and a negative poisson ratio structure 3;
the guard rail posts 1 are arranged at intervals along a road and used for supporting the guard rail body 2 connected in the middle of the guard rail posts; the protective guard stand column 1 comprises a base 4 and a stand column 5 welded and connected to the top of the base 4; the base 4 is fixedly arranged on the ground through foundation bolts, the stability of the guard rail can be improved through the fixed installation of the base and the ground, and a collided vehicle can be prevented from entering an opposite lane or rushing out of a road; the base 4 can be a cast iron base 4 or a steel base 4; the upright post 5 can adopt a cast iron upright post 5, a steel upright post 5 and an aluminum alloy upright post 5; the upright post 5 and the base 4 are welded together;
the protective fence body 2 is woven by bamboo; as shown in fig. 2 and fig. 3, the guard rail body 2 includes a plurality of bamboo pipes 6 extending along the arrangement direction of the vertical posts 5, and a modular weaving structure wound and woven around the plurality of bamboo pipes 6; the bamboo tubes 6 are arranged in parallel, and the end parts of the bamboo tubes 6 are fixedly connected to the upright posts 5 through the negative Poisson ratio structures 3; the end part of the modularized braided structure is wound on the upright post 5;
as shown in the structure of fig. 4, one end of the negative poisson's ratio structure 3 is nested at the end of the protective guard body 2 and is fixedly connected with the protective guard body 2, and the other end is nested in the upright post 5 and is adhesively connected with the upright post 5 through an adhesive; the adhesive may be an epoxy adhesive.
The urban traffic guard rail comprises guard rail posts 1 arranged at intervals, a guard rail body 2 connected between the guard rail posts 1 and a negative Poisson ratio structure 3; the protective fence body 2 is woven by bamboo wood; the protective guard column 1 is connected with the protective guard body 2 through a nested negative Poisson ratio structure 3 and an adhesive; the negative poisson ratio structure 3 is made of a negative poisson ratio material, and the negative poisson ratio material has the unique property different from common materials, namely, the material transversely expands in an elastic range when being stretched, and the material transversely contracts when being compressed, so that after a vehicle collides with the protective guard, the negative poisson ratio structure 3 connecting the protective guard body 2 and the upright post 5 is stretched due to tensile stress, and the upright post 5 and the protective guard body 2 are tightly connected together.
Meanwhile, the protective guard body 2 is woven by bamboo, china has rich bamboo resources and has a long history of bamboo utilization, and at present, the China pays attention to the utilization of renewable natural resources such as bamboo and the like, so that the application of China to bamboo is developing to multiple fields and high added value. The bamboo wood has the application background of short growth period, wide distribution range, renewable resources and environment-friendly products, meanwhile, the bamboo wood has excellent mechanical properties such as light weight, high specific strength and the like, the bamboo has very high tensile strength in the grain-following direction, and the grain-following tensile strength of the bamboo wood under the same quality is two times that of common steel. When a vehicle collides with the protective guard, point-surface contact is formed between the vehicle and the bamboo plates at first, the point-surface contact is changed into surface-surface contact along with the deepening of the energy absorption process, the range of the surface-surface contact is continuously enlarged, the shearing force borne by the protective guard is changed into the stretching force along the grains of the bamboo, and the energy absorption effect is achieved. The bamboo material has high tensile strength and toughness along the grain, and can be pulled to deform in the collision process to play an energy absorption effect, so that a buffer effect is achieved, and a good protection effect is achieved.
The guard rail body 2 of the urban traffic guard rail comprises a plurality of bamboo pipes 6 extending along the arrangement direction of the stand columns 5 and a modular braided structure wound and braided on the plurality of bamboo pipes 6; the bamboo tubes 6 are arranged in parallel, and the end parts of the bamboo tubes 6 are fixedly connected to the upright posts 5 through the negative Poisson ratio structures 3; the end part of the modularized braided structure is wound on the upright post 5; because the bamboo tube 6 of the protective guard body 2 is exposed outside, the vehicle can see the bamboo joint integrated type with the special structure of bamboo wood in the high-speed running process, and the bamboo tube 6 plays a role in guiding the visual field and has distance sense, so the urban traffic protective guard can also be used for bridges, tunnels, slopes on mountains and the like, and requires that the vehicle cannot rush out of the road condition, the good impact resistance of the bamboo wood can protect the vehicle from rushing out of the road after full energy absorption, and further the safety of drivers and life and property is ensured.
In a specific embodiment, as shown in the structures of fig. 2 and 3, the modular braided structure is formed by braiding a plurality of vertical bamboo boards 7 and at least one transverse bamboo board 8 in a criss-cross manner; in this embodiment, the guardrail body 2 is provided with three bamboo tubes 6, and each modular woven structure includes one transverse bamboo board 8 as an example for explanation; the vertical bamboo boards 7 are arranged along the vertical direction and are woven between the bamboo pipes 6 in a winding and penetrating mode; the vertical bamboo boards 7 can be wound on the periphery of one bamboo tube 6 and penetrate through the other bamboo tube 6; the horizontal bamboo boards 8 are arranged along the horizontal direction and woven with the vertical bamboo boards 7 in a staggered and interpenetrated mode, and one end part of each horizontal bamboo board is wound on the upright post 5; the vertical bamboo boards 7 are connected with the horizontal bamboo boards 8 in a bonding way at the cross points; a modular weaving structure is woven between every two adjacent bamboo tubes 6; each modular braided structure comprises a transverse bamboo board 8, and the end parts of the two transverse bamboo boards 8 are wound with the upright posts 5 in a staggered mode. In the weaving process, the vertical bamboo boards 7 and the transverse bamboo boards 8 can be woven into an 8-shaped structure. After weaving is completed, the two end parts of the same vertical bamboo board 7 and the two end parts of the same transverse bamboo board 8 can be fixedly connected through fasteners such as nails, screws and the like.
The modular weaving structure of the urban traffic protective fence is formed by weaving a plurality of vertical bamboo boards 7 and at least one transverse bamboo board 8 in a criss-cross mode; the vertical bamboo boards 7 are arranged along the vertical direction and are woven between the bamboo pipes 6 in a winding and penetrating mode; the horizontal bamboo boards 8 are arranged along the horizontal direction and woven with the vertical bamboo boards 7 in a staggered and interpenetrated mode, and one end part of each horizontal bamboo board is wound on the upright post 5; the vertical bamboo boards 7 are connected with the horizontal bamboo boards 8 in a bonding way at the cross points; adopt above-mentioned modularization establishment structure, have the characteristics of being convenient for design, assembly. The tip and the crisscross winding of stand 5 of horizontal bamboo clapper 8, namely, the winding is connected between the tip of the horizontal bamboo clapper 8 of upside and the left side stand 5, then the winding is connected between the tip of the horizontal bamboo clapper 8 of downside and the right side stand 5, and the purpose makes between rail guard and the stand 5 more firm and stable, plays effective protection.
The urban traffic protective guard structurally adopts a bamboo woven net structure, the purpose of buffering is achieved by efficiently utilizing the tensile property of bamboo, the net woven part is in a modularized design, so that the urban traffic protective guard is more convenient and fast to assemble integrally, and the connecting part of the upright post 5 and the protective guard body 2 adopts the negative Poisson ratio structure 3, so that the upright post 5 and the protective guard body 2 can be tightly attached in the collision process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An urban traffic guard rail is characterized by comprising guard rail pillars arranged at intervals, a guard rail body connected between the guard rail pillars, and a negative Poisson ratio structure;
the protective guard stand column comprises a base and a stand column welded and connected to the top of the base; the base is fixedly arranged on the ground through foundation bolts;
the protective guard body is woven by bamboo;
one end of the negative Poisson ratio structure is nested at the end part of the protective guard body and is fixedly connected with the protective guard body, and the other end of the negative Poisson ratio structure is nested in the upright post and is connected with the upright post in an adhesive manner through an adhesive.
2. The urban traffic guard rail according to claim 1, wherein the guard rail body comprises a plurality of bamboo tubes extending along the arrangement direction of the upright posts, and a modular woven structure wound and woven on the plurality of bamboo tubes;
the bamboo pipes are arranged in parallel, and the end parts of the bamboo pipes are fixedly connected to the upright posts through the negative Poisson ratio structure;
the ends of the modular braided structure are wrapped around the posts.
3. The urban traffic protective guard according to claim 2, wherein the modular braided structure is braided by criss-cross of a plurality of vertical bamboo boards and at least one horizontal bamboo board;
the vertical bamboo boards are arranged along the vertical direction and are woven among the bamboo pipes in a winding and penetrating mode;
the horizontal bamboo boards are arranged along the horizontal direction and woven together with the vertical bamboo boards in a staggered and penetrating mode, and one end part of each horizontal bamboo board is wound on the upright post;
the vertical bamboo boards and the transverse bamboo boards are connected at the cross points in an adhesive manner.
4. The urban traffic guard rail according to claim 3, wherein the guard rail body comprises three bamboo tubes;
the modular braided structure is braided between every two adjacent bamboo tubes;
every modular structure all includes a horizontal bamboo clapper, two the tip of horizontal bamboo clapper with the crisscross winding of stand.
5. The urban traffic guard rail according to any one of claims 1 to 4, characterized in that said base is a cast iron base; the adhesive is epoxy resin adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210812271.1A CN115323960B (en) | 2022-07-11 | 2022-07-11 | Urban traffic rail guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210812271.1A CN115323960B (en) | 2022-07-11 | 2022-07-11 | Urban traffic rail guard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115323960A true CN115323960A (en) | 2022-11-11 |
| CN115323960B CN115323960B (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210812271.1A Active CN115323960B (en) | 2022-07-11 | 2022-07-11 | Urban traffic rail guard |
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| Country | Link |
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| CN (1) | CN115323960B (en) |
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| Publication number | Publication date |
|---|---|
| CN115323960B (en) | 2024-05-31 |
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