CN201310076Y - Improved single-piece concrete guardrail for highway - Google Patents
Improved single-piece concrete guardrail for highway Download PDFInfo
- Publication number
- CN201310076Y CN201310076Y CNU2008201366299U CN200820136629U CN201310076Y CN 201310076 Y CN201310076 Y CN 201310076Y CN U2008201366299 U CNU2008201366299 U CN U2008201366299U CN 200820136629 U CN200820136629 U CN 200820136629U CN 201310076 Y CN201310076 Y CN 201310076Y
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- guardrail
- fence unit
- highway
- reinforced concrete
- unit
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Abstract
The utility model discloses an improved single-piece concrete guardrail for a highway, which comprises guardrail units of a prefabricated reinforced concrete structure, connection bolts, an embedded foundation, border stones and sleeper beams. The top of each guardrail unit is provided with a climbing stopping pit, is internally pre-buried with sleeves, and is in a single-piece structure; the bottom of each prefabricated reinforced concrete guardrail unit is embedded in a road surface; the embedded foundation is provided with a groove-shaped sleeper beam at the bottom of the connection end of each unit, and two ends of other part of the foundation are provided with the border stones; the inclined bolt connection is adopted among the guardrail units; the climbing stopping pit structure can effectively prevent vehicles from crossing the guardrail to enter into the opposite highway, and simultaneously the guardrail units can be combined through the simple connection of bolts to become an organic whole; so that the guardrail units can be made as standard prefabricated pieces, and the construction installation technology of the reinforced concrete guardrail is greatly simplified.
Description
Technical field
The utility model relates to a kind of highway concrete guardrail, and simplification construction, the saving that use particularly a kind of mountainous area highway or ordinary highway median strip takies width of subgrade, saves the precasting process one-piece construction concrete guardrail of cost.
Background technology
Along with the fast development of highway in China transport development cause, the traffic safety problem highlights day by day.Median barrier rationally is set can prevents that accident vehicle from dashing more median strip, avoid or reduce because of vehicle pours the serious accident that cause in the subtend track, significant for the safe operation of speedway.Present domestic speedway constantly to the development of western mountain ridge hilling terrain, is subjected to the influence of factors such as complex-terrain landforms and land resources are rare, environmental protection needs, and subgrade width is also corresponding to be restricted.Present widely used corrugated beam steeled protection fence protective capacities is low, and it is big that the basis takies width of subgrade, can not satisfy the demand of highway in China traffic safety.New concrete guard bar structures such as domatic concrete guardrail of list that China was newly developed in recent years and flute profile concrete guardrail are compared with corrugated beam steeled protection fence, crashproof ability is strong, steering capability is good, reduce the casualties number and the property loss that cause by collision accident, reduced routine servicing and maintenance load.But because some characteristics of its existence, for example single domatic concrete guardrail profile is more single; Flute profile guardrail virescence maintenance work complexity, high to the width of subgrade requirement makes being suitable for promoted extension of these concrete guardrail structural shapes be subjected to certain limitation.Therefore, China be badly in need of a kind of protective capacities that is applicable to mountainous area highway of exploitation strong, take the speedway median barrier structure that width of subgrade is little, construction and maintenance convenient, landscape effect is good.
The utility model content
The purpose of this utility model provides a kind of highway modified one chip concrete guardrail, it has characteristics such as simple in structure, that protective capacities is strong, steering capability good, construction technology is easy, be easy to maintenance, economize the land resource, good looking appearance is generous, can be applied to mountainous area highway and general standard highway median strip and safety device association area.
Highway of the present utility model comprises fence unit, connecting bolt, build-in type basis, road kerb, the sleeper beam of prefabricated reinforced concrete structure with modified one chip concrete guardrail.Wherein the fence unit top is provided with resistance and climbs bank, inner service sleeve, and form of structure is one-piece construction.Each prefabricated reinforced concrete fence unit bottom build-in is in the road surface.The build-in type basis is provided with the flute profile sleeper beam in each link bottom, unit, and both sides, remainder basis are provided with road kerb.Adopt oblique bolt to connect between each fence unit.
The service sleeve of above-mentioned described fence unit is the oblique fence unit top that is arranged on, and is parallel with the road surface, but is an angle with the highway bearing of trend, and in the fence unit side in this service sleeve outside the triangle open mouth groove coaxial with casing axis is set.
Described resistance is climbed bank and is arranged on the fence unit top, is provided with along the highway direction, and resistance is climbed bank and is arranged on the side of fence unit towards the track.
Described fence unit base foundation is mounted in the foundation trench, and the fence unit link bottom on build-in type basis is provided with the flute profile sleeper beam, between remainder both sides, basis and the road surface road kerb is set.
Because climbing the bank structure, resistance of the present utility model can effectively stop vehicle to cross guardrail to enter the subtend track, simultaneously can connect to realize combining by simple bolt between each fence unit and be organic whole, the prefabricated component that makes fence unit can be used as a kind of standard is made, thereby can simplify the installation technology of reinforced concrete fence greatly.By improving the domatic protective capacities that can more efficiently enhancing guardrail of guardrail.Relatively have the characteristics that the space, road surface is little, protective capacities is strong that account for steel guard rail, more then have easy construction with the ordinary reinforced concrete guardrail, dismounting is easy to advantage.The utility model has been simplified reinforcement structure, quantity of reinforcement be identical degree of protection flute profile concrete guardrail quantity of reinforcement 2/3.
Description of drawings
Fig. 1 is a kind of positive facade structural representation of the utility model;
Fig. 2 is a kind of plane structure schematic diagram of the utility model;
Fig. 3 is a kind of side elevation structural representation of the utility model.
The specific embodiment
Now in conjunction with the accompanying drawings the utility model is described further.
As Fig. 1, shown in Figure 3, highway of the present utility model comprises the fence unit 1 of prefabricated reinforced concrete structure with modified one chip concrete guardrail, this fence unit is along the road direction setting, at the top resistance is set and climbs bank 2, this resistance climb bank 2 be arranged on guardrail towards the side in track, be median barrier in the present embodiment, thereby the both sides of fence unit all are provided with resistance and climb bank 2.As Fig. 1, Fig. 2 and shown in Figure 3, the top of this fence unit is provided with service sleeve 4, these service sleeve 4 pre-buried two ends that are arranged on fence unit 1, set-up mode is for parallel with the road surface but be an oblique angle with the guardrail bearing of trend, so that can fence unit be coupled together by connecting bolt 3 between each fence unit.For guaranteeing that connecting bolt can not protrude in the surface of fence unit, special bearing of trend along this service sleeve 4 is provided with leg-of-mutton inclined open groove 11 in the fence unit side, the axis of the axis of this open slot 11 and service sleeve 4 coincides, to help the installation and removal of bolt 3.
Connected mode between the above-mentioned fence unit is easier, behind the fence unit by prefabricated standard, carries out on-the-spot the installation and just can realize the construction of guardrail, and then can realize the simplification of the construction technology of reinforced concrete fence.
As shown in Figure 1, 2, 3, each fence unit 1 is fixing like this with the road surface, and the embedded slot on build-in type basis 5 is the depression on the road surface, and shape is identical with the bottom of fence unit.Be the effect that guarantees to be connected and fixed, the two ends on build-in type basis 5, just interconnective position between the fence unit is provided with further to the outstanding flute profile sleeper beam 7 of the following direction in road surface.Road kerb 6 is arranged on the position between fence unit 1 both sides and the road surface, and purpose is to strengthen the stability of guardrail and the bonding strength on guardrail and road surface.
The domatic form of guardrail is that modified is domatic 8, and good guide function and energy-absorbing effect can be provided.Bank 2 is climbed in the handicapping of guardrail top, can prevent that vehicle from crossing, riding guardrail.Form of structure is prefabricated reinforced concrete structure, and stronger protective capacities can be provided, and one-piece construction can effectively economize the land resource.Each section prefabricated reinforced concrete fence unit 1 build-in is in the road surface, and the 5 links bottom, basis of adjacent two prefabricated fence units 1 is provided with flute profile sleeper beam 7, between remainder both sides, basis and the road surface road kerb 6 is set, to guarantee the stability of guardrail.Connect with oblique bolt 3 between the fence unit 1 of prefabricated reinforced concrete structure.
As Fig. 2, shown in Figure 3, the construction technology of reinforced concrete fence unit 1 is a precasting process, reserve sleeve pipe 4 in the prefabricated fence unit 1, the oblique bolt 3 that is used to connect is through reserving the adjacent athwart fence unit 1 of sleeve pipe 4, realize the connection between prefabricated section, reliable connection power is provided, guarantees the protective capacities of guard bar structure.The two ends of connecting bolt 3 are fixing with nut 10 with steel plate washer 9.The end of oblique connecting bolt 3 and steel plate washer 9, nut 10 are positioned at the reservation skewed slot 11 of guardrail 1 side, vehicle are not impacted guaranteeing.
The utility model reasonable in design, connection is safe and reliable, stability of foundation good, protection Ability reaches the high-protection level of median barrier of current specifications requirement. To protect during use The hurdle is arranged on the Expressway Central Strip axis, guarantees linear straight level and smooth. In reality Also can be according to the needs of width of subgrade during use on the border, do not affect guardrail height, basic build-in is dark Under the prerequisite of degree and domatic form, suitably reduce the guardrail foundation width, but should adopt antarafacial to intersect The bidirectional oblique bolt connect, after guaranteeing that the guardrail cross section reduces, can not weaken the anti-of guard bar structure Protect ability. Effectively the Accident prevention vehicle is any type of passes through, crosses or ride for the utility model Guardrail more, the crashproof ability of guardrail is strong, steering capability is good, construction technology is easy, can reduce by Casualties number and property loss that collision accident causes reduce routine servicing and maintenance work Amount; Oblique bolt connects safe and reliable, easy for installation; The guard bar structure rolled steel dosage is few, monolithic It is little that formula structure and socketed foundation take width of subgrade, effectively reduces cost, economize the land resource, The guardrail good looking appearance is generous, and landscape effect is good. Described concrete guardrail has been simplified reinforcement structure, Quantity of reinforcement be identical degree of protection the trough concrete barriers quantity of reinforcement 2/3.
Claims (4)
1. a highway is characterized in that: the fence unit, connecting bolt, build-in type basis, road kerb, the sleeper beam that comprise prefabricated reinforced concrete structure with modified one chip concrete guardrail; Wherein the fence unit top is provided with resistance and climbs bank, inner service sleeve, and form of structure is one-piece construction; Each prefabricated reinforced concrete fence unit bottom build-in is in the road surface; The build-in type basis is provided with the flute profile sleeper beam in each link bottom, unit, and both sides, remainder basis are provided with road kerb; Adopt oblique bolt to connect between each fence unit.
According to claim 1 highway with modified one chip concrete guardrail, it is characterized in that: the service sleeve of described fence unit is the oblique fence unit top that is arranged on, parallel with the road surface, but be an angle with the highway bearing of trend, and the triangle open mouth groove coaxial with casing axis be set in the fence unit side in this service sleeve outside.
3. highway is with modified one chip concrete guardrail according to claim 1, and it is characterized in that: described resistance is climbed bank and is arranged on the fence unit top, is provided with along the highway direction, and resistance is climbed bank and is arranged on the side of fence unit towards the track.
According to claim 1 highway with modified one chip concrete guardrail, it is characterized in that: described fence unit base foundation is mounted in the foundation trench, the fence unit link bottom on build-in type basis is provided with the flute profile sleeper beam, between remainder both sides, basis and the road surface road kerb is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201366299U CN201310076Y (en) | 2008-11-03 | 2008-11-03 | Improved single-piece concrete guardrail for highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201366299U CN201310076Y (en) | 2008-11-03 | 2008-11-03 | Improved single-piece concrete guardrail for highway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310076Y true CN201310076Y (en) | 2009-09-16 |
Family
ID=41107329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201366299U Expired - Lifetime CN201310076Y (en) | 2008-11-03 | 2008-11-03 | Improved single-piece concrete guardrail for highway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310076Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638392A (en) * | 2016-10-13 | 2017-05-10 | 交通运输部公路科学研究所 | Concrete guardrail unit, preparation method thereof and concrete guardrail |
| CN107119602A (en) * | 2017-05-15 | 2017-09-01 | 长沙理工大学 | Suitable for the anticollision guardrail structure and its construction method of Expressway Extension Project |
-
2008
- 2008-11-03 CN CNU2008201366299U patent/CN201310076Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638392A (en) * | 2016-10-13 | 2017-05-10 | 交通运输部公路科学研究所 | Concrete guardrail unit, preparation method thereof and concrete guardrail |
| CN107119602A (en) * | 2017-05-15 | 2017-09-01 | 长沙理工大学 | Suitable for the anticollision guardrail structure and its construction method of Expressway Extension Project |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |
|
| CX01 | Expiry of patent term |