CN203613458U - Transformation structure for concrete barrier for highway bridge - Google Patents
Transformation structure for concrete barrier for highway bridge Download PDFInfo
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- CN203613458U CN203613458U CN201320792546.6U CN201320792546U CN203613458U CN 203613458 U CN203613458 U CN 203613458U CN 201320792546 U CN201320792546 U CN 201320792546U CN 203613458 U CN203613458 U CN 203613458U
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- 239000004567 concrete Substances 0.000 title claims abstract description 93
- 230000004888 barrier function Effects 0.000 title abstract description 13
- 230000009466 transformation Effects 0.000 title abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000011150 reinforced concrete Substances 0.000 abstract 3
- 230000001131 transforming effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to an anti-collision barrier for a highway bridge and particularly relates to a transformation structure for a concrete barrier of the highway bridge. The transformation structure is provided with a wall body in a certain length along the longitudinal extension direction of a bridge surface and comprises an original combination type barrier lower portion reinforced concrete wall body; the upper portion of the original combination type barrier lower portion reinforced concrete wall body is provided with a newly added concrete barrier wall body; newly added reinforcing bars are arranged inside the newly added concrete barrier wall body; the newly added reinforcing bars are connected with reinforcing bars which are arranged inside the original combination type barrier lower portion reinforced concrete wall body. The transformation structure has the advantages of transforming an existing combined barrier into a concrete barrier structure, fully using materials for an original barrier lower portion wall body structure, saving transformation construction costs, improving barrier anti-collision levels and satisfying the existing traffic requirements.
Description
Technical field
The utility model relates to a kind of anticollision barrier for highway bridge, relates in particular to the reconstruction structure of a kind of highway bridge concrete guardrail.
Background technology
In recent years, along with the fast development of highway in China construction and transport undertaking, road traffic accident and the number of casualties thereof are also increasing.Because former combined type guard bar design steel superstructure is ＂ strong column and weak beam ＂ form, and crossbeam is met and is hit identity distance and meet from column that to hit the spacing of side less, crossbeam a little less than impact force directional stiffness, thereby cause stumbling at column place after motor bus collision guardrail resistance, affect travel safety.Meanwhile, the intensity that cross beam and upright post is connected with lower walls body structure does not meet the requirement of impact energy power, and after motor bus and rail collision, the insufficient height of guardrail, causes motor bus to cross guardrail.Along with developing rapidly of vehicle, driving vehicle has shown car microminiaturization and this two poles of the earth of truck heavy-duty situation, and old standard " expressway traffic safety facilities design and construction standard " requirement (JTJ074-94) can not meet the demand of vehicle.The transformation of combined type guard bar has been become to problem demanding prompt solution, and the crashproof ability that improves guardrail is also development trend.If rearrange guardrail, original guardrail need to be dismantled, and construction volume and difficulty of construction are larger, and improvement cost is higher.If make full use of original guardrail material, can meet current traffic requirement, and guardrail protective capacities can reach the protective capacities requirement that the SA level requiring in new criteria is 400kJ, and save a large amount of improvement expenseses, improve the anti-collision level of guardrail.Aspect economy or security protection ability aspect all tool have an enormous advantage.
Utility model content
Technical problem to be solved in the utility model is to provide the reconstruction structure of a kind of highway bridge concrete guardrail, on the basis of existing guardrail, increase new wall body structure, utilize former combined type guard bar lower rebar concrete wall, save transformation construction cost, improved the anti-collision level of guardrail.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the reconstruction structure of concrete guardrail for a kind of highway bridge, comprise former combined type guard bar lower rebar concrete wall, in described former combined type guard bar lower rebar concrete wall, be provided with reinforcing bar, the top of described former combined type guard bar lower rebar concrete wall is provided with newly-increased concrete guardrail body of wall, in described newly-increased concrete guardrail body of wall, be provided with newly-increased reinforcing bar, described newly-increased reinforcing bar is connected with the reinforcing bar in described former combined type guard bar lower rebar concrete wall.
It is that former combined type guard bar upper metal crossbeam and pillar construction are removed that described top is provided with newly-increased concrete guardrail body of wall, uses concrete structure instead.
Remove the concrete of certain altitude at the end face of former guardrail lower walls body structure downwards, retain the reinforcing bar in this part guardrail body of wall, the reserved reinforcing bar of described former combined type guard bar end face is connected with the newly-increased wall steel bar in top.
On the basis of technique scheme, the utility model can also do following improvement.
Further, the one side of described former combined type guard bar lower rebar concrete wall is that former combined type guard bar lower rebar concrete wall is met the face of hitting, on described former combined type guard bar lower rebar concrete wall with described in to meet the one side that the face of hitting is relative be the former combined type guard bar lower rebar concrete wall back side, it is double slope surface that described former combined type guard bar lower rebar concrete wall is met the face of hitting, and the described former combined type guard bar lower rebar concrete wall back side is stalk face.
Further, on described newly-increased concrete guardrail body of wall, meet the one side of the face of hitting in the same face with described former combined type guard bar lower rebar concrete wall and meet for increasing concrete guardrail body of wall newly the face of hitting, for increasing the concrete guardrail body of wall back side newly, described newly-increased concrete guardrail body of wall meets the face of hitting and the newly-increased concrete guardrail body of wall back side can be single domatic or stalk face with the one side of the described former combined type guard bar lower rebar concrete wall back side in the same face.
Adopt the beneficial effect of above-mentioned two further schemes to be: to adopt above form of structure, can guarantee the protective capacities of guardrail, improved anti-collision level, be convenient to again processing and the construction and installation of guardrail template.
Further, the top that described newly-increased concrete guardrail body of wall is met the face of hitting arranges resistance and climbs bank.
Adopt the beneficial effect of above-mentioned further scheme to be: resistance is climbed bank structure and can effectively be prevented that vehicle from climbing and turn over (or turning up) in the vehicle that causes.
In a word, the utility model possesses higher protective capacities, can more effectively avoid turning over or crossing in vehicle guardrail, the utility model transform existing combined type guard bar as concrete guardrail structure, for there is the body of wall of certain length along bridge floor longitudinal extension direction, body of wall comprises the newly-increased wall body structure of former guardrail lower walls body structure and top, this guard bar structure is removed original Assembled guard railing structure upper beam and column, be transformed into concrete structure, improve the anti-collision level of guardrail, make full use of the material of original guardrail lower walls body structure (former combined type guard bar lower rebar concrete wall), save transformation construction cost, both made full use of original guardrail material, can meet again current traffic requirement, and guardrail protective capacities can reach the protective capacities requirement that the SA level requiring in new criteria is 400kJ, save again a large amount of expenses.Aspect economy or security protection ability aspect all tool have an enormous advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reconstruction structure of a kind of highway bridge of the utility model concrete guardrail;
Fig. 2 is the former Assembled guard railing structure schematic diagram of the reconstruction structure of a kind of highway bridge of the utility model concrete guardrail.
In accompanying drawing, the list of parts of each label representative is as follows:
1, former combined type guard bar lower rebar concrete wall, 2, newly-increased concrete guardrail body of wall, 3, former combined type guard bar lower rebar concrete wall is met the face of hitting, 4, the former combined type guard bar lower rebar concrete wall back side, 5, newly-increased concrete guardrail body of wall is met the face of hitting, 6, the newly-increased concrete guardrail body of wall back side, 7, resistance climbs bank, 8, upper cross structures.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, the reconstruction structure of concrete guardrail for a kind of highway bridge, comprise former combined type guard bar lower rebar concrete wall 1, the top of described former combined type guard bar lower rebar concrete wall 1 is provided with newly-increased concrete guardrail body of wall 2, in described newly-increased concrete guardrail body of wall 2, be provided with newly-increased reinforcing bar, the reinforcing bar in described newly-increased reinforcing bar and described former combined type guard bar lower rebar concrete wall 1 is fixed by welding or colligation.The one side of described former combined type guard bar lower rebar concrete wall 1 is that former combined type guard bar lower rebar concrete wall is met the face of hitting 3, on described former combined type guard bar lower rebar concrete wall 1, meeting with described former combined type guard bar lower rebar concrete wall the one side that the face of hitting 3 is relative is the former combined type guard bar lower rebar concrete wall back side 4, described former combined type guard bar lower rebar concrete wall is met the face of hitting 3 for double slope surface, and the described former combined type guard bar lower rebar concrete wall back side 4 is stalk face.On described newly-increased concrete guardrail body of wall 2, meet the one side of the face of hitting 3 in the same face with described former combined type guard bar lower rebar concrete wall and meet the face of hitting 5 for increasing concrete guardrail body of wall newly, for increasing the concrete guardrail body of wall back side 6 newly, described newly-increased concrete guardrail body of wall meets the face of hitting 5 and the newly-increased concrete guardrail body of wall back side 6 can be single domatic or stalk face with the one side of the described former combined type guard bar lower rebar concrete wall back side 4 in the same face.The top that described newly-increased concrete guardrail body of wall is met the face of hitting 5 arranges resistance and climbs bank 7.
The utility model is removed the upper metal crossbeam of former guardrail and pillar construction, and the top of former combined type guard bar lower rebar concrete wall 1 is removed to the concrete of certain altitude downwards, and retain the reinforcing bar in this wall segment, the concrete of removing certain altitude is to guarantee that former combined type guard bar lower rebar concrete wall 1 can be connected effectively with newly-increased concrete guardrail body of wall 2, save original materials for wall, guaranteed that former combined type guard bar lower rebar concrete wall 1 is consistent with the crashproof ability transition of newly-increased concrete guardrail body of wall 2.The newly-increased concrete guardrail body of wall in guardrail top meets the face of hitting 5 and the newly-increased concrete guardrail body of wall back side 6 can be single domatic or stalk formula, and the top that newly-increased concrete guardrail body of wall is met the face of hitting 5 arranges resistance and climbs bank 7, this structure can guarantee the protective capacities of guardrail, improve anti-collision level, be convenient to again processing and the construction and installation of guardrail template.
There is constuction joint with the junction of newly-increased concrete guardrail body of wall 2 in described former combined type guard bar lower rebar concrete wall 1, notes the connection of new and old body of wall when construction.
The utility model possesses higher protective capacities, can more effectively avoid turning over or crossing in vehicle guardrail; In addition this guard bar structure is removed original Assembled guard railing structure upper cross structures 8, be transformed into concrete structure, make full use of the material of original guardrail lower walls body structure (former combined type guard bar lower rebar concrete wall), saved transformation construction cost, improved the anti-collision level of guardrail.Both made full use of original guardrail material, and can meet again current traffic requirement, and guardrail protective capacities can reach the protective capacities requirement that the SA level requiring in new criteria is 400kJ, not only reduce a lot of workloads, save again a large amount of expenses.Aspect economy or security protection ability aspect all tool have an enormous advantage.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the reconstruction structure of a highway bridge use concrete guardrail, comprise former combined type guard bar lower rebar concrete wall, it is characterized in that, the top of described former combined type guard bar lower rebar concrete wall is provided with newly-increased concrete guardrail body of wall, in described newly-increased concrete guardrail body of wall, be provided with newly-increased reinforcing bar, described newly-increased reinforcing bar is connected with described former combined type guard bar lower rebar concrete wall.
2. the reconstruction structure of concrete guardrail for a kind of highway bridge according to claim 1, it is characterized in that, it is double slope surface that described former combined type guard bar lower rebar concrete wall is met the face of hitting, and the described former combined type guard bar lower rebar concrete wall back side is stalk face.
3. the reconstruction structure of concrete guardrail for a kind of highway bridge according to claim 2, is characterized in that, described newly-increased concrete guardrail body of wall meets the face of hitting and the newly-increased concrete guardrail body of wall back side is single domatic or stalk face.
4. the reconstruction structure of concrete guardrail for a kind of highway bridge according to claim 3, is characterized in that, the top that described newly-increased concrete guardrail body of wall is met the face of hitting arranges resistance and climbs bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792546.6U CN203613458U (en) | 2013-12-04 | 2013-12-04 | Transformation structure for concrete barrier for highway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320792546.6U CN203613458U (en) | 2013-12-04 | 2013-12-04 | Transformation structure for concrete barrier for highway bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613458U true CN203613458U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320792546.6U Expired - Lifetime CN203613458U (en) | 2013-12-04 | 2013-12-04 | Transformation structure for concrete barrier for highway bridge |
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| Country | Link |
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| CN (1) | CN203613458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105200943A (en) * | 2015-09-21 | 2015-12-30 | 山东高速股份有限公司 | Framework-type concrete guardrail heightening device |
| 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 |
-
2013
- 2013-12-04 CN CN201320792546.6U patent/CN203613458U/en not_active Expired - Lifetime
Cited By (2)
| 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 |
| CN105200943A (en) * | 2015-09-21 | 2015-12-30 | 山东高速股份有限公司 | Framework-type concrete guardrail heightening device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
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| CX01 | Expiry of patent term |