CN202672070U - Novel narrow body reinforced concrete guardrail - Google Patents
Novel narrow body reinforced concrete guardrail Download PDFInfo
- Publication number
- CN202672070U CN202672070U CN 201120425581 CN201120425581U CN202672070U CN 202672070 U CN202672070 U CN 202672070U CN 201120425581 CN201120425581 CN 201120425581 CN 201120425581 U CN201120425581 U CN 201120425581U CN 202672070 U CN202672070 U CN 202672070U
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- steel bars
- reinforced concrete
- narrow body
- body reinforced
- guardrail
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Abstract
The utility model provides a novel narrow body reinforced concrete guardrail suitable for mountain area rural roadbed mortar rubble masonry retaining wall sections, and provided with certain crash-proof capability and low construction and later maintenance cost, comprising structural steel bars and a concrete casting guardrail disposed at the external of the structural steel bars, the structural steel bars comprise a plurality of crash-meeting surface supporting steel bars and back supporting steel bars in a parallel arrangement at an interval of 60cm and with hooks; two crash-meeting surface reinforcing steel bars are uniformly arranged between every two supporting steel bars, and all the supporting steel bars and the reinforcing steel bars are connected via eight connecting steel bars. The top width and base width of the guardrail are smaller, particularly, reduction of the base width size solves problem of limitation of the road side width, and the method of steel bar implanting via boring is adopted, fundamentally reducing on-site construction difficulty and saving construction cost.
Description
Technical field
The utility model relates to a kind of traffic guardrail, especially a kind of novel narrow body reinforced concrete fence.
Background technology
Along with the development of rural economy, the rural highway traffic volume increases gradually, and travel modal is day by day complicated, and traffic accidents also increases thereupon.Setting up rural highway security facility is the effective way that reduces the rural highway traffic accident or alleviate damage sequence.Roadside barrier is security facility the most frequently used on the mountainous rural area highway.At present, the existing optional guardrail of part in the standard criterion such as China's " highway traffic safety facilities design standard ", " highway safety ensures the engineering construction technical manual ", but divide roadbed retaining wall highway section for mountainous rural area highway top, these guardrails exist that constructional difficulties, width are excessive, high cost, anti-collision level are crossed the shortcomings such as high.Therefore, develop a kind of crashproof ability and can adapt to rural highway traffic characteristics, cost guardrail low and that be convenient in the construction of roadbed retaining wall highway section is must and be badly in need of.
Existing trackside concrete guardrail basis instrument form mainly contains two kinds, and a kind of is chair type, and another kind is pile foundation type.The chair type guardrail be with guardrail basis interlocking in road structure, by road structure the resistance of basic shank displacement is improved the stability against overturning of guardrail, require the bearing capacity of ground to be not less than 150KN/m
2, basic bar planting.Shortcoming mainly contains: setting has limitation, and shoulder width and bearing capacity of foundation soil are had certain restriction requirement, and the guardrail basis was difficult to excavation, constructional difficulties when curb was retaining wall.
The pile foundation type guardrail is to squeeze into steel pipe pile before cast-in-place trackside concrete guardrail, and steel pipe pile is firmly imbedded in the pedestal, and joins together with concrete guardrail, requires the bearing capacity of ground to be not less than 150KN/m
2Shortcoming is mainly: steel pipe pile is adapted at earth shoulder and implements to beat to bury, and is higher to the Geological Condition Requirement on guardrail basis, is the highway section constructional difficulties of retaining wall at curb.
The utility model content
The utility model provides a kind of and has been applicable to that mountainous rural area highway subgrade retaining wall is the highway section, that have certain crashproof ability, construction and the cheap novel narrow body reinforced concrete fence of later maintenance cost.
Realize the novel narrow body reinforced concrete fence of the utility model purpose, comprise structure reinforcing bars and be positioned at the pouring concrete guardrail of described structure reinforcing bars outside that described structure reinforcing bars comprises that a plurality of interval 60cm are arranged in parallel and hit face bearing bar and back support reinforcing bar with meeting of crotch; Be evenly arranged 2 between per two bearing bars and meet and hit the face stiffener, meet and hit the face bearing bar and be connected 5 road connecting reinforcements to connect with stiffener, the back support reinforcing bar is with 3 road connecting reinforcements connections; Described concrete parcel bearing bar, stiffener and horizontal connecting reinforcement; Being arranged in meeting of retaining wall hits the outside of face bearing bar and builds mortar.
Described bearing bar, stiffener and laterally connect by colligation being connected all of connecting reinforcement.
Connect the described horizontal connecting reinforcement that hits the face bearing bar of meeting 5 roads are arranged.
The horizontal connecting reinforcement that connects described back support reinforcing bar has 3 roads.
On described pouring concrete guardrail, every interval 15m-20m arranges a shrinkage joint.
Filled plastics foam in the described shrinkage joint.
The width at described shrinkage joint is 2cm.
On described pouring concrete guardrail, every interval 4m arranges baste one.
The beneficial effect of novel narrow body reinforced concrete fence of the present utility model is as follows:
(1) top width of the utility model guardrail and foundation width are less, and particularly the problem that reduces to have solved the trackside restricted width of foundation width size relatively is suitable for the less road conditions of mountainous rural area road side width.
(2) the utility model guardrail basis adopts boring to implant the method for reinforcing bar, solved hard base foundation excavation hard problem, can satisfy the guardrail superstructure is connected to keep structural stability with subgrade and pavement requirement, can adapt to again the simple characteristics of rural highway construction machinery, fundamentally alleviate the site operation difficulty, also saved construction cost simultaneously.
Description of drawings
Fig. 1 is the structural representation of novel narrow body reinforced concrete fence of the present utility model.
Fig. 2 is the scheme of installation of novel narrow body reinforced concrete fence of the present utility model.
The specific embodiment
As shown in Figure 1, novel narrow body reinforced concrete fence of the present utility model, comprise structure reinforcing bars and the concrete N5 that is positioned at described structure reinforcing bars outside, described structure reinforcing bars comprises that a plurality of interval 60cm are arranged in parallel and hits face bearing bar N1 and back support reinforcing bar N3 with meeting of crotch; Meet to hit and be evenly arranged two between the face bearing bar N1 and meet and hit face stiffener N2 for per two, meet and hit face bearing bar N1 and be connected 5 road connecting reinforcement N4 to connect with stiffener N2, back support reinforcing bar N3 connects with 3 road connecting reinforcement N4; Described concrete parcel bearing bar N1 and N3, stiffener N2 and horizontal connecting reinforcement N4; Being arranged in meeting of retaining wall hits the outside of face bearing bar N1 and builds mortar.
Described meet hit being connected of face bearing bar N1 and stiffener N2 and connecting reinforcement N4, back support reinforcing bar N3 connected by colligation with being connected of connecting reinforcement N4.On described novel narrow body reinforced concrete fence, every interval 15m-20m arranges a shrinkage joint.Filled plastics foam in the described shrinkage joint.The width at described shrinkage joint is 2cm.On described pouring concrete guardrail, every interval 4m arranges baste one.
The manufacture method of novel narrow body reinforced concrete fence of the present utility model is as follows:
As shown in Figure 2, outside width of excavation is 30cm along road edge to the road, and the degree of depth is the kerve of 5cm, is 4cm along the guardrail setting party to boring row's diameter being close to road edge 4.5cm place, dark 60cm hole (at the bottom of the hole be 65cm apart from pavement-height), pitch of holes is 60cm.The hole be implanted into diameter be 12mm and end band 4cm crotch should hit face bearing bar N1, and in the hole perfusion M15 mortar.
Meeting and hitting face bearing bar N1 is the screw-thread steel of diameter 12mm, be arranged near runway inboard, hit face bearing bar N1 one row's back support reinforcing bar N3 is set at the guardrail back side corresponding to meeting, bearing bar N3 is the plain bar of diameter 8mm, meets to hit face bearing bar N1 and be connected the colligation silk to carry out colligation to connect with back support reinforcing bar N3; For the stability that keeps back support reinforcing bar N3 and the integral linear of guardrail, carry out colligation by the horizontal connecting reinforcement N4 layering of 3 roads between back support reinforcing bar N3 and connect; Meet and hit face bearing bar N1 and carry out colligation with the horizontal connecting reinforcement N4 layering of 5 roads and connect; Meet and hit face intensity in order to strengthen guardrail, meet to hit at two and set up two stiffener N2 between the face bearing bar N1, stiffener N2 is the screw-thread steel of diameter 12mm, is fixedly connected with horizontal connecting reinforcement N4 by the colligation silk, and laterally connecting reinforcement N4 is the plain bar of diameter 8mm.
Reinforcing bar binding is complete to be that sectional carries out formwork and builds, and the concrete grade of building is C25.It is 15m that the minimum of this guardrail arranges length.This reinforced concrete fence generally 15m arranges a shrinkage joint, stitches wide 2cm, fills with plastic foam between the slit, run into the particular length highway section, can suitably adjust expansion joint setting length, spacing is between 15～30m, for reducing concrete inhomogeneous cracking, every 4m baste is set one.
Novel narrow body reinforced concrete fence of the present utility model is through computer simulation vehicle and impact experiments of guardrail and the checking of real vehicle equal proportion impact test, its collision energy is 83.7KJ, namely can successfully protect the vehicle (such as 19 fully loaded mini-buses) of 6t, hit the accident of this reinforced concrete fence with the speed of 45km/h, 25 ° collision angle.
Novel narrow body reinforced concrete fence of the present utility model has the advantages such as protective action is obvious, construction technology is simple, cheap.Can protect the traffic accident that occurs under the typical mountainous rural area highway communication condition, especially to the dead group of present mountainous rural area highway group hinder accident multiple vehicle---19 mini-buses have good protection effect, build and the maintenance construction technology is simple, expense is cheap.Have less at mountainous rural area road side width and curb is basic is the hard substrate such as stone material, the advantage that the Dangerous Area that the basis is difficult for excavating is applied, can significantly improve the traffic safety of using the highway section after coming into operation, effectively reduce the generation of major accident, the order of severity of attenuating traffic accident, have good Social benefit and economic benefit.
Embodiment recited above is described preferred embodiment of the present utility model; be not that scope of the present utility model is limited; design under the spiritual prerequisite not breaking away from the utility model; various distortion and improvement that the common engineers and technicians in this area make technical solutions of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (8)
1. novel narrow body reinforced concrete fence, comprise structure reinforcing bars and be positioned at the pouring concrete guardrail of described structure reinforcing bars outside, it is characterized in that: described structure reinforcing bars comprises that a plurality of interval 60cm are arranged in parallel and hit face bearing bar and back support reinforcing bar with meeting of crotch; Be evenly arranged two between per two bearing bars and meet and hit the face stiffener, meet and hit the face bearing bar and be connected 5 road connecting reinforcements to connect with stiffener, the back support reinforcing bar is with 3 road connecting reinforcements connections; Described concrete parcel bearing bar, stiffener and horizontal connecting reinforcement; Being arranged in meeting of retaining wall hits the outside of face bearing bar and builds mortar.
2. novel narrow body reinforced concrete fence according to claim 1 is characterized in that: described bearing bar, stiffener and laterally connect by colligation being connected all of connecting reinforcement.
3. novel narrow body reinforced concrete fence according to claim 1, it is characterized in that: connecting the described horizontal connecting reinforcement that hits the face bearing bar of meeting has 5 roads.
4. novel narrow body reinforced concrete fence according to claim 1, it is characterized in that: the horizontal connecting reinforcement that connects described back support reinforcing bar has 3 roads.
5. arbitrary described novel narrow body reinforced concrete fence according to claim 1-4, it is characterized in that: on described pouring concrete guardrail, every interval 15m-20m arranges a shrinkage joint.
6. novel narrow body reinforced concrete fence according to claim 5 is characterized in that: filled plastics foam in the described shrinkage joint.
7. novel narrow body reinforced concrete fence according to claim 5, it is characterized in that: the width at described shrinkage joint is 2cm.
8. arbitrary described novel narrow body reinforced concrete fence according to claim 1-4, it is characterized in that: on described pouring concrete guardrail, every interval 4m arranges baste one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120425581 CN202672070U (en) | 2011-11-01 | 2011-11-01 | Novel narrow body reinforced concrete guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120425581 CN202672070U (en) | 2011-11-01 | 2011-11-01 | Novel narrow body reinforced concrete guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202672070U true CN202672070U (en) | 2013-01-16 |
Family
ID=47492980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120425581 Expired - Fee Related CN202672070U (en) | 2011-11-01 | 2011-11-01 | Novel narrow body reinforced concrete guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202672070U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648947A (en) * | 2015-09-10 | 2016-06-08 | 北京华路安交通科技有限公司 | Enveloped type combined guardrail |
| CN106320225A (en) * | 2016-08-27 | 2017-01-11 | 河南省交通科学技术研究院有限公司 | Method for reinforcing continuous anti-collision wall modified by foundation-free warning pier |
| CN107794857A (en) * | 2017-10-27 | 2018-03-13 | 广州万构建筑工程设计有限公司 | A kind of environment-friendly type town road roadblock and its manufacture method |
-
2011
- 2011-11-01 CN CN 201120425581 patent/CN202672070U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648947A (en) * | 2015-09-10 | 2016-06-08 | 北京华路安交通科技有限公司 | Enveloped type combined guardrail |
| CN106320225A (en) * | 2016-08-27 | 2017-01-11 | 河南省交通科学技术研究院有限公司 | Method for reinforcing continuous anti-collision wall modified by foundation-free warning pier |
| CN107794857A (en) * | 2017-10-27 | 2018-03-13 | 广州万构建筑工程设计有限公司 | A kind of environment-friendly type town road roadblock and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20131101 |