CN204125872U - A kind of highway barrier bracing means - Google Patents
A kind of highway barrier bracing means Download PDFInfo
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- CN204125872U CN204125872U CN201420468354.4U CN201420468354U CN204125872U CN 204125872 U CN204125872 U CN 204125872U CN 201420468354 U CN201420468354 U CN 201420468354U CN 204125872 U CN204125872 U CN 204125872U
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- fence upright
- guardrail
- reinforcing cage
- reinforced hole
- column
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Abstract
The utility model relates to a kind of highway barrier bracing means, comprise hollow type basis fence upright, corrugated guardrail plate, it is characterized in that: the center along hollow type basis fence upright sets reinforced hole to ground, reinforcing cage is laid in reinforced hole and hollow pillar stand, be filled with concret block in reinforcing cage, basic fence upright installed and increases fence upright and protection crossbeam.Take full advantage of steel tube concrete soil characteristics, the steel concrete of building and column composition encased structures, change the cross-sectional properties of column, enhance the bending resistance tensile stress ability of column, in reinforced hole, steel concrete adds column buried depth, strengthens the crashproof ability of column.Protection crossbeam effectively can increase the height of protective guard, prevents vehicle from going out guardrail, protection crossbeam and corrugated guardrail plate jointly stressed, compensate for the defect of the crashproof scarce capacity brought because of guardrail board thickness deficiency.Use in new speedway after extracting old guardrail upgrading, reduce expenses, cut the waste.
Description
Technical field
The utility model belongs to expressway barrier maintenance technology field, particularly relates to a kind of highway barrier bracing means.
Background technology
Since the nineties in last century, China's expressway construction fast development, by the end of the year 2006, the total mileage open to traffic of China's speedway oneself nearly 4.5 ten thousand kilometers.These speedway major parts are according to the regulation in " the expressway traffic safety facilities design and construction technical specification (JTJ074) " of publication in 94 years, namely the anti-collision level in speedway ordinary accident or major accident section adopts A, Am standard, crashproof ability is 93 kilojoules, wherein A level trackside corrugated beam barrier, column external diameter 114mm used, wall thickness 4.5mm, buried depth 1100mm.The thickness of guardrail board is 3mm, and obstruction block wall thickness is 3mm.Inside guardrail to the distance in shoulder be 500mm.
But along with new criteria " highway traffic safety facilities design specification ", " highway traffic safety facility construction technique normalizing " are in the issuing and implementation on September 1st, 2006, the degree of protection of freeway guardrail also improves thereupon, the A level trackside corrugated beam barrier that newly-built and reconstruction speedway adopts, crashproof ability is 160 kilojoules, the canonical form of column used is: external diameter 140mm, wall thickness 4.5mm, buried depth 1400mm.The thickness of guardrail board is 4mm, and obstruction block wall thickness is 4.5mm.Inside guardrail to the distance in shoulder be 750mm.
Find by carrying out contrast to the ordinary construction of new and old roadside barrier, the buried depth of fence upright becomes the 1400mm in new criteria from the 1100mm old specification, guardrail aperture becomes the 140mm in new criteria from the 114mm old specification, the thickness of corrugated guardrail plate becomes the 4mm in new criteria from the 3mm old specification, obstruction block wall thickness becomes the 4.5mm in new criteria from the 3mm old specification, distance to shoulder inside guardrail also becomes 750mm from 500mm, namely new guardrail increases the stability of fence upright soil matrix and column anchoring point by the distance increased between effective buried depth and the point of impingement to shoulder, by increasing fence upright diameter, wave beams thickness of slab and obstruction block wall thickness increase the shearing resistance tensile property of guardrail, to reach the object promoting crashworthiness.
Old guardrail is also faced with highly not enough problem, in speedway lifetime, will repeatedly overlay (or cover) reinforcement maintenance by the road serious to disease.Outrigger location maintenance measure, causes express highway pavement constantly to increase, and corrugated beam barrier and road surface relative altitude decline, particularly repeatedly after cover, and guardrail and road surface relative altitude wretched insufficiency.
Known in sum, the guardrail of many existing speedways according to old Specification Design has not met the requirement of new criteria.Rough estimate, the section of 4.5 ten thousand highway high speed highways 75% have employed corrugated beam barrier, and two-way bilateral is built.Roadside barrier column and median barrier column interval all calculate by 4m.In the speedway that China is built, the old fence upright of the Φ 114 made has 4.5 × 75% × 4 × 1000/4=3375 (ten thousand); The old guardrail board used has 4.5 × 75% × 4=13.5 (ten thousand prolong kilometer).If the fence upright that these are old and old guardrail board are discarded, then install new guardrail, a large amount of construction costs will be increased, cause raw-material waste.Refer to the structure that Fig. 4 is existing foundation protection hurdle, therefore, utilize original old guardrail, by to its upgrading, make it reach and even surmount the requirement of new guardrail properties, not only significantly can save construction cost, also can reduce new material produce and old Material handling processes in cause completion pollution, energy waste.
Meanwhile, old fence upright underground buried depth part, and cannot maintenance due to long-time water and soil balance, there is certain corrosion phenomenon, the problem of column buried depth partial intensities also Shortcomings.
Summary of the invention
The utility model provides a kind of when not abolishing former foundation protection hurdle for solving in known technology the technical problem that exists, and carry out upgrading on foundation protection hurdle, can reach the highway barrier bracing means of new criteria to the requirement of degree of protection.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is:
A kind of highway barrier bracing means, comprise burying and be contained in hollow type basis fence upright outside speedway on ground, be arranged on the corrugated guardrail plate of fence upright speedway side by securing member, it is characterized in that: the center along hollow type basis fence upright sets reinforced hole to ground, the depth distance fence upright basal cross section 100mm ~ 600mm of reinforced hole; In reinforced hole and basic guardrail centre bore, lay reinforcing cage, be filled with concret block in described reinforcing cage, the longitudinal direction of described reinforcing cage is highly 1000mm ~ 2000mm, and the bottom surface of reinforcing cage contacts with reinforced hole bottom surface;
Described reinforcing cage comprise longitudinal reinforcement and and stirrup, the shape of above-mentioned reinforcing cage is circular layout, and described longitudinal reinforcement adopts unsymmetric structure, the spacing namely between the longitudinal reinforcement that roadbed center position is adjacent is less than the spacing between the longitudinal reinforcement that direction, shoulder is adjacent;
Above-mentioned longitudinal reinforcement bundlees stirrup, and the spacing between adjacent stirrup is 50mm ~ 200mm; The spacing between superposed stirrup is less than at the stirrup of longitudinal reinforcement bottom;
What also include prolongation hollow type basis fence upright distance roadbed upper level increases fence upright, the described fence upright that increases is provided with installation elongated hole, the described guardrail that increases is inserted in the upper port of above-mentioned hollow type basis fence upright, installing hole on it is corresponding with the securing member installing corrugated guardrail plate, securing member is installed in above-mentioned installing hole, and by hollow type basis fence upright, increase fence upright and corrugated guardrail plate is fastening as a whole;
Described above-mentioned upper end of increasing fence upright is provided with bending part to roadbed center position, is provided with protection crossbeam at the adjacent bending part increasing fence upright by securing member.
The utility model can also adopt following technical measures:
The described radius being positioned at the reinforced hole in basic guardrail column lower end cross section is greater than the radius 50mm ~ 100mm of basic fence upright,
Obstruction block is provided with between described corrugated guardrail plate and hollow type basis fence upright.
The excircle of described reinforcing cage is provided with positioning supports, and the external diameter of positioning supports equals the internal diameter of reinforced hole.
The advantage that the utility model has and good effect are: the utility model takes full advantage of steel tube concrete soil characteristics.Pouring reinforcement concrete in basic fence upright, and make Extended chemotherapy exceeding column part, strengthen the stability of column; The steel concrete of building and column composition encased structures, change the cross-sectional properties of column, enhance the ability of the bending resistance tensile stress of column, strengthen the crashproof ability of column.Protection crossbeam is installed at the top of basis fence upright, effectively can increase the height of protective guard, prevent vehicle from going out guardrail, protection crossbeam and corrugated guardrail plate jointly stressed, compensate for the defect of crashproof scarce capacity brought because of guardrail board thickness deficiency.This upgrading measure, need not abolish guardrail component, farthest utilizes original material, also can use in new speedway after extracting old guardrail upgrading, reduce expenses, cut the waste.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is reinforcement cage structure schematic diagram;
Fig. 3 is enlarged configuration schematic diagram bottom reinforced hole;
Figure 4 and 5 are existing foundation protection hurdle structural representations.
In figure: 1, basic fence upright; 2, securing member; 3, corrugated guardrail plate; 4, reinforced hole; 5, reinforcing cage; 5-1 longitudinal reinforcement; 5-2 stirrup; 5-3, positioning supports; 6, concret block; 7, fence upright is increased; 7-1, installing hole; 7-2, bending part; 8, securing member; 9, crossbeam is protected; 10, obstruction block.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, a kind of highway barrier bracing means, comprise the hollow type basis fence upright 1 burying and be contained in outside speedway on ground, so-called foundation protection hurdle column can think old fence upright, may also be newly-built fence upright; Be arranged on the corrugated guardrail plate 3 of fence upright speedway side by securing member 2, the center along hollow type basis fence upright sets reinforced hole 4 to ground, and the depth distance fence upright basal cross section of reinforced hole is 100mm ~ 600mm; In reinforced hole and hollow fence upright, lay reinforcing cage 5, be filled with concret block 6 in described reinforcing cage, the longitudinal direction of described reinforcing cage is highly 1000mm ~ 2000mm, and the bottom surface of reinforcing cage contacts with reinforced hole bottom surface;
Described reinforcing cage 5 comprise longitudinal reinforcement 5-1 and and stirrup 5-2, the shape of described reinforcing cage is circular configuration, and described longitudinal reinforcement adopts unsymmetric structure, the spacing namely between the longitudinal reinforcement that roadbed center position is adjacent is less than the spacing between the longitudinal reinforcement that direction, shoulder is adjacent;
Above-mentioned longitudinal reinforcement bundlees stirrup, and the spacing between adjacent stirrup is 50mm ~ 200mm; The spacing between superposed stirrup is less than at the stirrup of longitudinal reinforcement bottom;
The excircle of described reinforcing cage is provided with positioning supports 5-3, and the external diameter of positioning supports equals the internal diameter of reinforced hole.
What also include prolongation hollow type basis fence upright distance roadbed upper level increases fence upright 7, the described fence upright that increases is provided with installation elongated hole 7-1, the described guardrail that increases is inserted in the upper port of above-mentioned hollow type basis fence upright, installing hole on it is corresponding with the securing member installing corrugated guardrail plate, securing member is installed in above-mentioned installing hole, and by hollow type basis fence upright, increase fence upright and corrugated guardrail plate is fastening as a whole;
Described above-mentioned upper end of increasing fence upright is provided with bending part 7-2 to roadbed center position, is provided with protection crossbeam 9 at the adjacent bending part increasing fence upright by securing member 8.
Referring to Fig. 3, meeting the requirement of different geology in order to meet this bracing means, the location that such as footing is soft, be greater than the radius 50mm ~ 100mm of basic fence upright at the described radius being positioned at the reinforced hole in basic guardrail column lower end cross section,
If above-mentioned former foundation protection hurdle does not have obstruction block, in order to improve crashproof intensity, between described corrugated guardrail plate and hollow type basis fence upright, be provided with obstruction block 10; If former foundation protection hurdle is with obstruction block, can continue after reinforcing to retain this obstruction block 10, as Fig. 4 and Fig. 5.
Upgrading method to foundation protection hurdle of the present utility model and device, under the condition not abolishing the original component of guardrail, upgrading is carried out to the guardrail needed reinforcement, its means mainly adopted utilize the steel concrete block of building to realize, concret block herein plays a key role, be mainly manifested in following two convenience, one is expand the contact area with surrounding soil, increase the uplift resistance of basic fence upright, prevent basic fence upright because the not enough integral inclined displacement of uplift resistance is excessive or sticked up.Two is abilities that the bending resistance strengthening basic fence upright cross section is drawn.Height and the intensity of guardrail is increased, to meet the safe distance of more than roadbed with the protection crossbeam 9 installed.
When accident vehicle collision guardrail, under the effect of impact force, corrugated guardrail plate and protection crossbeam deform and absorption portion energy, and protection crossbeam can share a part of impact force, reduces the stressed of guardrail board, improves the crashproof ability of guardrail entirety.Because protection crossbeam is arranged on above basic fence upright, effectively raises the height on foundation protection hurdle, prevent vehicle from going out guardrail and more serious accident occurs.
Impact force is better distributed on a few pile foundation fence uprights of closing on by protection crossbeam, basis fence upright is stressed, meeting run-off the straight or flexural deformation, basis fence upright can be subject to Earth Pressure Around be used for resist tilt displacement, although the inadequate code requirement of column buried depth, but the steel concrete block poured into adds the contact area with surrounding soil, add the uplift resistance of basic fence upright, there is well firm effect to basic fence upright, not easily stick up from soil when making basic fence upright be subject to excessive impact force.Steel concrete block and basic fence upright form new structure---encased structures.Change the cross-sectional properties of basic fence upright, larger tensile stress and Moment can be born.Therefore, basic fence upright not frangibility when being subject to greater impact power.
The utility model takes full advantage of steel tube concrete soil characteristics.Pouring reinforcement concrete in the fence upright of basis, and make Extended chemotherapy exceeding column part, strengthen the stability of column; The steel concrete of building and column composition encased structures, change the cross-sectional properties of basic fence upright, enhance the ability of the bending resistance tensile stress of basic fence upright, strengthen the crashproof ability of basic fence upright.Protection crossbeam is installed at the top of basis fence upright, effectively can increase the height of guardrail, compensate for the deficiency of the little and crashproof ability of original waveform guardrail board thickness, also add the height of basic fence upright simultaneously.Prevent vehicle from going out guardrail, protection crossbeam and guardrail board jointly stressed, compensate for the defect of crashproof scarce capacity brought because of guardrail board thickness deficiency.
This upgrading measure, need not abolish guardrail component, farthest utilizes original material, also can use in new speedway after extracting old guardrail upgrading, reduce expenses, cut the waste.
When basic fence upright is collided power run-off the straight, the existence of concret block increases surrounding soil to the soil pressure effect of basic fence upright, increase basic guardrail Column stability and crashproof ability, and the structure of the reinforced concrete combination Cheng Xin of basic fence upright and its inside has steel tube concrete soil characteristics, can effectively resist torque effect, make column be not easy to be fractureed.
Specifically in implementation method, namely a kind of reinforcement means of above-mentioned highway barrier bracing means, the steps include:
1), make reinforcing cage 5, the diameter selecting longitudinal reinforcement is 4mm ~ 16mm; The diameter selecting stirrup is 4mm ~ 16mm; The structural configuration of the spacing between the longitudinal reinforcement that direction, shoulder is adjacent is less than according to the spacing between the longitudinal reinforcement that roadbed center position is adjacent; Stirrup is tied up in the requirement being 50mm ~ 200mm according to the spacing between adjacent stirrup;
2) upright post cap 10, corrugated guardrail plate 3, the obstruction block 10 of hollow type basis fence upright 1, is removed;
3), the auger be suitable for is selected to beat reinforced hole along the center line of hollow type basis fence upright; The depth distance fence upright basal cross section 100mm ~ 600mm of reinforced hole; The location of soil condition difference, widens 50mm ~ 100mm at basic guardrail column lower end in the face of reinforced hole is one-sided;
4), clear up basic fence upright and reinforced hole, first clear up the earth in above-mentioned basic stand column and reinforced hole; Then the anvil cinder of basic fence upright 1 inwall is cleaned;
5), place step 1) in the reinforcing cage 5 of well in advance put into bottom to reinforced hole along basic guardrail uprights vertical, and adjust direction, and pre-fixed by positioning supports, doing the positioning supports pre-fixed after casting complete stays within it, and what namely longitudinal reinforcement arrangement was comparatively intensive is placed on roadbed side;
6), from the upper port of basic fence upright to joints cement concrete in reinforcing cage, and the dense state of cement concrete is ensured;
7), fence upright is increased at the upper port plug-in mounting of each basic fence upright, adjustment direction simultaneously, make the bending part increasing fence upright upper end towards roadbed side, and install firm, corrugated guardrail plate and obstruction block are installed simultaneously, adjust simultaneously and adjacently increase the height of fence upright and be consistent, the height of measuring distance roadbed meets construction requirement simultaneously; After adjustment, securing member is fastening;
8), by securing member, protection crossbeam is installed at the bending part increasing fence upright.
The upgrading type guardrail that proposes of the utility model, can make original material make full use of, new material can be used to improve the cross section performance of former component, make its entirety meet the requirement of new criteria standard in sum.
Basis fence upright the most easily occurs in maximal bending moment section and to fracture or displacement is excessive because Earth Pressure Around is not enough or stick up, and causes vehicle go out guardrail and more great accident occurs.The general principle of being undertaken strengthening by pouring reinforcement concrete component in basic fence upright is: by increasing the effect of Earth Pressure Around, improve the stability of column, increased the ability of column resist torque by the cross-sectional properties changing maximal bending moment section, improve the intensity of column.
Corrugated beam barrier is in protection accident vehicle, and the height of basic fence upright is not enough, and corrugated guardrail plate thickness is not enough, so its crashproof poor ability, accident vehicle is easily crossed guardrail and more serious accident occurs.Increasing the horizontal beam action of protection is both added the height of guardrail, turn increases the crashproof ability of guardrail.
Protective guard bracing means involved by the utility model and method thereof also can be used for the section that the trackside Dangerous Areas such as high embankment, high retaining wall, wave beams and concrete guardrail changeover portion etc. need to carry out corrugated beam barrier upgrading.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, such as equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (4)
1. a highway barrier bracing means, comprise burying and be contained in hollow type basis fence upright outside speedway on ground, be arranged on the corrugated guardrail plate of fence upright speedway side by securing member, it is characterized in that: the center along hollow type basis fence upright sets reinforced hole to ground, the depth distance fence upright basal cross section 100mm ~ 600mm of reinforced hole; In reinforced hole and basic guardrail centre bore, lay reinforcing cage, be filled with concret block in described reinforcing cage, the longitudinal direction of described reinforcing cage is highly 1000mm ~ 2000mm, and the bottom surface of reinforcing cage contacts with reinforced hole bottom surface;
Described reinforcing cage comprise longitudinal reinforcement and and stirrup, the shape of above-mentioned reinforcing cage is circular layout, and described longitudinal reinforcement adopts unsymmetric structure, the spacing namely between the longitudinal reinforcement that roadbed center position is adjacent is less than the spacing between the longitudinal reinforcement that direction, shoulder is adjacent;
Above-mentioned longitudinal reinforcement bundlees stirrup, and the spacing between adjacent stirrup is 50mm ~ 200mm; The spacing between superposed stirrup is less than at the stirrup of longitudinal reinforcement bottom;
What also include prolongation hollow type basis fence upright distance roadbed upper level increases fence upright, the described fence upright that increases is provided with installation elongated hole, the described guardrail that increases is inserted in the upper port of above-mentioned hollow type basis fence upright, installing hole on it is corresponding with the securing member installing corrugated guardrail plate, securing member is installed in above-mentioned installing hole, and by hollow type basis fence upright, increase fence upright and corrugated guardrail plate is fastening as a whole;
Described above-mentioned upper end of increasing fence upright is provided with bending part to roadbed center position, is provided with protection crossbeam at the adjacent bending part increasing fence upright by securing member.
2. highway barrier bracing means according to claim 1, is characterized in that: described in be positioned at the reinforced hole in basic guardrail column lower end cross section radius be greater than the radius 50mm ~ 100mm of basic fence upright.
3. according to the arbitrary described highway barrier bracing means of claim 1 to 2, it is characterized in that: between described corrugated guardrail plate and hollow type basis fence upright, be provided with obstruction block.
4. highway barrier bracing means according to claim 1, is characterized in that: the excircle of described reinforcing cage is provided with positioning supports, the external diameter of positioning supports equals the internal diameter of reinforced hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468354.4U CN204125872U (en) | 2014-08-19 | 2014-08-19 | A kind of highway barrier bracing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468354.4U CN204125872U (en) | 2014-08-19 | 2014-08-19 | A kind of highway barrier bracing means |
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| CN204125872U true CN204125872U (en) | 2015-01-28 |
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| CN201420468354.4U Withdrawn - After Issue CN204125872U (en) | 2014-08-19 | 2014-08-19 | A kind of highway barrier bracing means |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153311A (en) * | 2014-08-19 | 2014-11-19 | 崔洪军 | Road guardrail reinforcing device and reinforcing method thereof |
| CN107974936A (en) * | 2016-10-27 | 2018-05-01 | 成都亚联科科技有限公司 | A kind of bridge pavement component |
| CN109386167A (en) * | 2017-08-04 | 2019-02-26 | 上海宝冶集团有限公司 | The construction method of Road Retaining Walls upper waveform guardrail |
| CN111472305A (en) * | 2018-12-07 | 2020-07-31 | 杭州江润科技有限公司 | Middle pier anti-collision system and construction method |
| CN114481734A (en) * | 2022-02-24 | 2022-05-13 | 浙江交工金筑交通建设有限公司 | Construction method of highway widened pile drainage type foam concrete light embankment |
-
2014
- 2014-08-19 CN CN201420468354.4U patent/CN204125872U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153311A (en) * | 2014-08-19 | 2014-11-19 | 崔洪军 | Road guardrail reinforcing device and reinforcing method thereof |
| CN107974936A (en) * | 2016-10-27 | 2018-05-01 | 成都亚联科科技有限公司 | A kind of bridge pavement component |
| CN107974936B (en) * | 2016-10-27 | 2019-12-27 | 广东省怡合建设有限公司 | Bridge is subassembly for road surface |
| CN109386167A (en) * | 2017-08-04 | 2019-02-26 | 上海宝冶集团有限公司 | The construction method of Road Retaining Walls upper waveform guardrail |
| CN109386167B (en) * | 2017-08-04 | 2020-07-28 | 上海宝冶集团有限公司 | Construction method of square wave-shaped guardrail on road retaining wall |
| CN111472305A (en) * | 2018-12-07 | 2020-07-31 | 杭州江润科技有限公司 | Middle pier anti-collision system and construction method |
| CN114481734A (en) * | 2022-02-24 | 2022-05-13 | 浙江交工金筑交通建设有限公司 | Construction method of highway widened pile drainage type foam concrete light embankment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20160824 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |